GitBook: [v3.x] 17 pages modified

removed repeated word

.github/ISSUE_TEMPLATE/bug_report.md

@@ -0,0 +1,48 @@
+---
+name: Bug report
+about: Create a report to help us improve
+title: ''
+labels: bug
+assignees: ''
+
+---
+
+**Describe the bug**
+A clear and concise description of what the bug is.
+
+version of yq: 
+operating system:
+
+**Input Yaml**
+Concise yaml document(s) (as simple as possible to show the bug)
+data1.yml:
+```yaml
+this: should really work
+```
+
+data2.yml:
+```yaml
+but: it strangely didn't
+```
+
+**Command**
+The command you ran:
+```
+yq merge data1.yml data2.yml
+```
+
+**Actual behavior**
+
+```yaml
+cat: meow
+```
+
+**Expected behavior**
+
+```yaml
+this: should really work
+but: it strangely didn't
+```
+
+**Additional context**
+Add any other context about the problem here.

.github/ISSUE_TEMPLATE/feature_request.md

@@ -0,0 +1,36 @@
+---
+name: Feature request
+about: Suggest an idea for this project
+title: ''
+labels: enhancement
+assignees: ''
+
+---
+
+**Is your feature request related to a problem? Please describe.**
+A clear and concise description of what the problem is. Ex. I'm always frustrated when [...]
+
+**Describe the solution you'd like**
+If we have data1.yml like:
+
+```yaml
+country: Australia
+```
+
+And we run a command:
+
+```bash
+yq predictWeather data1.yml
+```
+
+it could output
+
+```yaml
+temp: 32
+```
+
+**Describe alternatives you've considered**
+A clear and concise description of any alternative solutions or features you've considered.
+
+**Additional context**
+Add any other context or screenshots about the feature request here.

.github/workflows/go.yml

@@ -0,0 +1,34 @@
+name: Build
+on: [push]
+jobs:
+
+  build:
+    name: Build
+    runs-on: ubuntu-latest
+    steps:
+
+    - name: Set up Go 1.14
+      uses: actions/setup-go@v1
+      with:
+        go-version: 1.14
+      id: go
+
+    - name: Check out code into the Go module directory
+      uses: actions/checkout@v2
+
+    - name: Get dependencies
+      run: |
+        go get -v -t -d ./...
+        if [ -f Gopkg.toml ]; then
+            curl https://raw.githubusercontent.com/golang/dep/master/install.sh | sh
+            dep ensure
+        fi
+
+    - name: Download deps
+      run: |
+        export PATH=${PATH}:`go env GOPATH`/bin
+        scripts/devtools.sh
+    - name: Build
+      run: |
+        export PATH=${PATH}:`go env GOPATH`/bin
+        make local build

.travis.yml

@@ -1,6 +0,0 @@
-language: go
-go:
-  - 1.13.x
-script:
-  - scripts/devtools.sh
-  - make local build

CODE_OF_CONDUCT.md

@@ -0,0 +1,76 @@
+# Contributor Covenant Code of Conduct
+
+## Our Pledge
+
+In the interest of fostering an open and welcoming environment, we as
+contributors and maintainers pledge to making participation in our project and
+our community a harassment-free experience for everyone, regardless of age, body
+size, disability, ethnicity, sex characteristics, gender identity and expression,
+level of experience, education, socio-economic status, nationality, personal
+appearance, race, religion, or sexual identity and orientation.
+
+## Our Standards
+
+Examples of behavior that contributes to creating a positive environment
+include:
+
+* Using welcoming and inclusive language
+* Being respectful of differing viewpoints and experiences
+* Gracefully accepting constructive criticism
+* Focusing on what is best for the community
+* Showing empathy towards other community members
+
+Examples of unacceptable behavior by participants include:
+
+* The use of sexualized language or imagery and unwelcome sexual attention or
+ advances
+* Trolling, insulting/derogatory comments, and personal or political attacks
+* Public or private harassment
+* Publishing others' private information, such as a physical or electronic
+ address, without explicit permission
+* Other conduct which could reasonably be considered inappropriate in a
+ professional setting
+
+## Our Responsibilities
+
+Project maintainers are responsible for clarifying the standards of acceptable
+behavior and are expected to take appropriate and fair corrective action in
+response to any instances of unacceptable behavior.
+
+Project maintainers have the right and responsibility to remove, edit, or
+reject comments, commits, code, wiki edits, issues, and other contributions
+that are not aligned to this Code of Conduct, or to ban temporarily or
+permanently any contributor for other behaviors that they deem inappropriate,
+threatening, offensive, or harmful.
+
+## Scope
+
+This Code of Conduct applies both within project spaces and in public spaces
+when an individual is representing the project or its community. Examples of
+representing a project or community include using an official project e-mail
+address, posting via an official social media account, or acting as an appointed
+representative at an online or offline event. Representation of a project may be
+further defined and clarified by project maintainers.
+
+## Enforcement
+
+Instances of abusive, harassing, or otherwise unacceptable behavior may be
+reported by contacting the project team at mikefarah@gmail.com. All
+complaints will be reviewed and investigated and will result in a response that
+is deemed necessary and appropriate to the circumstances. The project team is
+obligated to maintain confidentiality with regard to the reporter of an incident.
+Further details of specific enforcement policies may be posted separately.
+
+Project maintainers who do not follow or enforce the Code of Conduct in good
+faith may face temporary or permanent repercussions as determined by other
+members of the project's leadership.
+
+## Attribution
+
+This Code of Conduct is adapted from the [Contributor Covenant][homepage], version 1.4,
+available at https://www.contributor-covenant.org/version/1/4/code-of-conduct.html
+
+[homepage]: https://www.contributor-covenant.org
+
+For answers to common questions about this code of conduct, see
+https://www.contributor-covenant.org/faq

CONTRIBUTING.md

@@ -0,0 +1,8 @@
+1. Install (golang)[https://golang.org/]
+1. Run  `scripts/devtools.sh` to install the required devtools
+2. Run `make [local] vendor` to install the vendor dependencies
+2. Run `make [local] test` to ensure you can run the existing tests
+3. Write unit tests - (see existing examples). Changes will not be accepted without corresponding unit tests.
+4. Make the code changes.
+5. `make [local] test` to lint code and run tests
+6. Profit! ok no profit, but raise a PR and get kudos :)

Dockerfile

@@ -1,4 +1,4 @@
-FROM golang:1.13 as builder
+FROM golang:1.14 as builder
 
 WORKDIR /go/src/mikefarah/yq
 

Dockerfile.dev

@@ -1,4 +1,4 @@
-FROM golang:1.13
+FROM golang:1.14
 
 COPY scripts/devtools.sh /opt/devtools.sh
 
@@ -9,15 +9,15 @@ RUN set -e -x \
 RUN set -ex \
     && buildDeps=' \
         build-essential \
-        python-dev \
+        python3-dev \
     ' \
     && apt-get update && apt-get install -y --no-install-recommends \
         $buildDeps \
-        python2.7 \
-        python-setuptools \
-        python-wheel \
-        python-pip \
-    && pip install --upgrade \
+        python3 \
+        python3-setuptools \
+        python3-wheel \
+        python3-pip \
+    && pip3 install --upgrade \
         pip \
         'Markdown>=2.6.9' \
         'mkdocs>=0.16.3' \

README.md

@@ -1,52 +1,74 @@
+---
+description: yq is a lightweight and portable command-line YAML processor
+---
+
 # yq
 
-[![Build Status](https://travis-ci.org/mikefarah/yq.svg?branch=master)](https://travis-ci.org/mikefarah/yq)  ![Docker Pulls](https://img.shields.io/docker/pulls/mikefarah/yq.svg) ![Github Releases (by Release)](https://img.shields.io/github/downloads/mikefarah/yq/total.svg) ![Go Report](https://goreportcard.com/badge/github.com/mikefarah/yq)
-
-
-a lightweight and portable command-line YAML processor
-
-The aim of the project is to be the [jq](https://github.com/stedolan/jq) or sed of yaml files.
+ ![Build](https://github.com/mikefarah/yq/workflows/Build/badge.svg) ![Docker Pulls](https://img.shields.io/docker/pulls/mikefarah/yq.svg) ![Github Releases \(by Release\)](https://img.shields.io/github/downloads/mikefarah/yq/total.svg) ![Go Report](https://goreportcard.com/badge/github.com/mikefarah/yq)
 
 ## Install
+
+`yq` has pre-built binaries for most platforms - checkout the [releases page](https://github.com/mikefarah/yq/releases) for the latest build. Alternatively - you can use one of the methods below:
+
 ### On MacOS:
-```
+
+```bash
 brew install yq
 ```
-### On Ubuntu and other Linux distros supporting `snap` packages:
+
+### On Windows:
+
+```bash
+choco install yq
 ```
+
+Kindly maintained by @chillum \([https://github.com/chillum/choco-packages/tree/master/yq](https://github.com/chillum/choco-packages/tree/master/yq)\)
+
+### On Ubuntu and other Linux distributions supporting `snap` packages:
+
+```bash
 snap install yq
 ```
 
 #### Snap notes
+
 `yq` installs with with [_strict confinement_](https://docs.snapcraft.io/snap-confinement/6233) in snap, this means it doesn't have direct access to root files. To read root files you can:
 
-```
+```bash
 sudo cat /etc/myfile | yq -r - somecommand
 ```
 
 And to write to a root file you can either use [sponge](https://linux.die.net/man/1/sponge):
-```
+
+```bash
 sudo cat /etc/myfile | yq -r - somecommand | sudo sponge /etc/myfile
 ```
+
 or write to a temporary file:
-```
+
+```bash
 sudo cat /etc/myfile | yq -r - somecommand | sudo tee /etc/myfile.tmp
 sudo mv /etc/myfile.tmp /etc/myfile
 rm /etc/myfile.tmp
 ```
 
 ### On Ubuntu 16.04 or higher from Debian package:
-```
+
+```bash
 sudo add-apt-repository ppa:rmescandon/yq
 sudo apt update
 sudo apt install yq -y
 ```
-### or, [Download latest binary](https://github.com/mikefarah/yq/releases/latest) or alternatively:
-```
+
+Kindly maintained by @rmescandon
+
+### go get:
+
+```text
 GO111MODULE=on go get github.com/mikefarah/yq/v3
 ```
 
-## Run with Docker
+## Docker
 
 Oneshot use:
 
@@ -68,60 +90,3 @@ yq() {
 }
 ```
 
-## Features
-- Written in portable go, so you can download a lovely dependency free binary
-- Deep read a yaml file with a given path
-- Update a yaml file given a path
-- Update a yaml file given a script file
-- Update creates any missing entries in the path on the fly
-- Create a yaml file given a deep path and value
-- Create a yaml file given a script file
-- Prefix a path to a yaml file
-- Convert from json to yaml
-- Convert from yaml to json
-- Pipe data in by using '-'
-- Merge multiple yaml files where each additional file sets values for missing or null value keys.
-- Merge multiple yaml files and override previous values.
-- Merge multiple yaml files and append array values.
-- Supports multiple documents in a single yaml file
-
-## [Usage](http://mikefarah.github.io/yq/)
-
-Check out the [documentation](http://mikefarah.github.io/yq/) for more detailed and advanced usage.
-
-```
-yq is a lightweight and portable command-line YAML processor. It aims to be the jq or sed of yaml files.
-
-Usage:
-  yq [flags]
-  yq [command]
-
-Available Commands:
-  delete      yq d [--inplace/-i] [--doc/-d index] sample.yaml a.b.c
-  help        Help about any command
-  merge       yq m [--inplace/-i] [--doc/-d index] [--overwrite/-x] [--append/-a] sample.yaml sample2.yaml
-  new         yq n [--script/-s script_file] a.b.c newValue
-  prefix      yq p [--inplace/-i] [--doc/-d index] sample.yaml a.b.c
-  read        yq r [--doc/-d index] sample.yaml a.b.c
-  write       yq w [--inplace/-i] [--script/-s script_file] [--doc/-d index] sample.yaml a.b.c newValue
-
-Flags:
-  -h, --help      help for yq
-  -t, --trim      trim yaml output (default true)
-  -v, --verbose   verbose mode
-  -V, --version   Print version information and quit
-
-Use "yq [command] --help" for more information about a command.
-```
-
-## Contribute
-1. `scripts/devtools.sh`
-2. `make [local] vendor`
-3. add unit tests
-4. apply changes to go.mod
-5. `make [local] build`
-6. If required, update the user documentation
-    - Update README.md and/or documentation under the mkdocs folder
-    - `make [local] build-docs`
-    - browse to docs/index.html and check your changes
-7. profit

SUMMARY.md

@@ -0,0 +1,25 @@
+# Table of contents
+
+* [yq](README.md)
+* [Upgrading from V2](upgrading-from-v2.md)
+
+## Commands
+
+* [Read](commands/read.md)
+* [Validate](commands/validate.md)
+* [Compare](commands/compare.md)
+* [Write](commands/write-update.md)
+* [Create](commands/create.md)
+* [Delete](commands/delete.md)
+* [Merge](commands/merge.md)
+* [Prefix](commands/prefix.md)
+* [Shell Completion](commands/shell-completion.md)
+
+## Usage
+
+* [Output format](usage/output-format.md)
+* [Path Expressions](usage/path-expressions.md)
+* [Value Parsing](usage/value-parsing.md)
+* [Working with JSON](usage/convert.md)
+* [Github Page](https://github.com/mikefarah/yq)
+

Upgrade Notes

@@ -1,74 +0,0 @@
-
-Major release! Upgraded underlying yaml parser, re-written majority of yq. This has brought on a number of features that have been in demand for a while (see below).
-
-This is in beta and needs some community feedback and testing :)
-
-# New Features
-  - Keeps yaml comments and formatting, can specify yaml tags when updating. https://github.com/mikefarah/yq/issues/19, https://github.com/mikefarah/yq/issues/169, https://github.com/mikefarah/yq/issues/107, https://github.com/mikefarah/yq/issues/171, https://github.com/mikefarah/yq/issues/245, https://github.com/mikefarah/yq/issues/303,https://github.com/mikefarah/yq/issues/308,https://github.com/mikefarah/yq/issues/314
-  - Handles anchors!  https://github.com/mikefarah/yq/issues/310, https://github.com/mikefarah/yq/issues/178
-  - Can print out matching paths and values when splatting https://github.com/mikefarah/yq/issues/20
-  - JSON output works for all commands! Yaml files with multiple documents are printed out as one JSON document per line. 
-  - Deep splat (**) to match arbitrary paths
-
-
-# Breaking changes
-
-## Update scripts file format has changed to be more powerful. 
-Comments can be added, and delete commands have been introduced.
-
-Before:
-```yaml
-b.e[+].name: Mike Farah
-```
-
-After:
-```yaml
-- command: update 
-  path: b.e[+].thing
-  value:
-    #great 
-    things: frog # wow!
-- command: delete
-  path: b.d
-```
-
-https://github.com/mikefarah/yq/issues/305
-
-## Reading and splatting, matching results are printed once per line.
-  e.g:
-
-```json
-parent:
-  childA: 
-    no: matches here
-  childB:
-    there: matches
-    hi: no match
-    there2: also matches
-```
-
-```bash
-yq r sample.yaml 'parent.*.there*'
-```
-
-old
-```yaml
-- null
-- - matches
-  - also matches
-```
-
-new
-```yaml
-matches
-also matches
-```
-
-and you can print the matching paths:
-
-yq r --printMode pv sample.yaml 'parent.*.there*'
-
-```yaml
-parent.childB.there: matches
-parent.childB.there2: also matches
-```

action.yml

@@ -0,0 +1,13 @@
+name: 'yq - portable yaml processor'
+description: 'create, read, update, delete, merge, validate and do more with yaml'
+icon: command
+color: gray-dark
+inputs:
+  cmd:
+    description: 'The Command which should be run'
+    required: true
+runs:
+  using: 'docker'
+  image: 'github-action/Dockerfile'
+  args:
+    - ${{ inputs.cmd }}

cmd/commands_test.go

@@ -0,0 +1,83 @@
+package cmd
+
+import (
+	"strings"
+	"testing"
+
+	"github.com/mikefarah/yq/v3/test"
+	"github.com/spf13/cobra"
+)
+
+func getRootCommand() *cobra.Command {
+	return New()
+}
+
+func TestRootCmd(t *testing.T) {
+	cmd := getRootCommand()
+	result := test.RunCmd(cmd, "")
+	if result.Error != nil {
+		t.Error(result.Error)
+	}
+
+	if !strings.Contains(result.Output, "Usage:") {
+		t.Error("Expected usage message to be printed out, but the usage message was not found.")
+	}
+}
+
+func TestRootCmd_Help(t *testing.T) {
+	cmd := getRootCommand()
+	result := test.RunCmd(cmd, "--help")
+	if result.Error != nil {
+		t.Error(result.Error)
+	}
+
+	if !strings.Contains(result.Output, "yq is a lightweight and portable command-line YAML processor. It aims to be the jq or sed of yaml files.") {
+		t.Error("Expected usage message to be printed out, but the usage message was not found.")
+	}
+}
+
+func TestRootCmd_VerboseLong(t *testing.T) {
+	cmd := getRootCommand()
+	result := test.RunCmd(cmd, "--verbose")
+	if result.Error != nil {
+		t.Error(result.Error)
+	}
+
+	if !verbose {
+		t.Error("Expected verbose to be true")
+	}
+}
+
+func TestRootCmd_VerboseShort(t *testing.T) {
+	cmd := getRootCommand()
+	result := test.RunCmd(cmd, "-v")
+	if result.Error != nil {
+		t.Error(result.Error)
+	}
+
+	if !verbose {
+		t.Error("Expected verbose to be true")
+	}
+}
+
+func TestRootCmd_VersionShort(t *testing.T) {
+	cmd := getRootCommand()
+	result := test.RunCmd(cmd, "-V")
+	if result.Error != nil {
+		t.Error(result.Error)
+	}
+	if !strings.Contains(result.Output, "yq version") {
+		t.Error("expected version message to be printed out, but the message was not found.")
+	}
+}
+
+func TestRootCmd_VersionLong(t *testing.T) {
+	cmd := getRootCommand()
+	result := test.RunCmd(cmd, "--version")
+	if result.Error != nil {
+		t.Error(result.Error)
+	}
+	if !strings.Contains(result.Output, "yq version") {
+		t.Error("expected version message to be printed out, but the message was not found.")
+	}
+}

cmd/compare.go

@@ -0,0 +1,89 @@
+package cmd
+
+import (
+	"bufio"
+	"bytes"
+	"os"
+	"strings"
+
+	"github.com/kylelemons/godebug/diff"
+	"github.com/mikefarah/yq/v3/pkg/yqlib"
+	errors "github.com/pkg/errors"
+	"github.com/spf13/cobra"
+)
+
+// turn off for unit tests :(
+var forceOsExit = true
+
+func createCompareCmd() *cobra.Command {
+	var cmdCompare = &cobra.Command{
+		Use:     "compare [yaml_file_a] [yaml_file_b]",
+		Aliases: []string{"x"},
+		Short:   "yq x [--prettyPrint/-P] dataA.yaml dataB.yaml 'b.e(name==fr*).value'",
+		Example: `
+yq x - data2.yml # reads from stdin
+yq x -pp dataA.yaml dataB.yaml '**' # compare paths
+yq x -d1 dataA.yaml dataB.yaml 'a.b.c'
+`,
+		Long: "Deeply compares two yaml files, prints the difference. Use with prettyPrint flag to ignore formatting differences.",
+		RunE: compareDocuments,
+	}
+	cmdCompare.PersistentFlags().StringVarP(&docIndex, "doc", "d", "0", "process document index number (0 based, * for all documents)")
+	cmdCompare.PersistentFlags().StringVarP(&printMode, "printMode", "p", "v", "print mode (v (values, default), p (paths), pv (path and value pairs)")
+	cmdCompare.PersistentFlags().StringVarP(&defaultValue, "defaultValue", "D", "", "default value printed when there are no results")
+	cmdCompare.PersistentFlags().BoolVarP(&stripComments, "stripComments", "", false, "strip comments out before comparing")
+	cmdCompare.PersistentFlags().BoolVarP(&explodeAnchors, "explodeAnchors", "X", false, "explode anchors")
+	return cmdCompare
+}
+
+func compareDocuments(cmd *cobra.Command, args []string) error {
+	var path = ""
+
+	if len(args) < 2 {
+		return errors.New("Must provide at 2 yaml files")
+	} else if len(args) > 2 {
+		path = args[2]
+	}
+
+	var updateAll, docIndexInt, errorParsingDocIndex = parseDocumentIndex()
+	if errorParsingDocIndex != nil {
+		return errorParsingDocIndex
+	}
+
+	var matchingNodesA []*yqlib.NodeContext
+	var matchingNodesB []*yqlib.NodeContext
+	var errorDoingThings error
+
+	matchingNodesA, errorDoingThings = readYamlFile(args[0], path, updateAll, docIndexInt)
+
+	if errorDoingThings != nil {
+		return errorDoingThings
+	}
+
+	matchingNodesB, errorDoingThings = readYamlFile(args[1], path, updateAll, docIndexInt)
+	if errorDoingThings != nil {
+		return errorDoingThings
+	}
+
+	var dataBufferA bytes.Buffer
+	var dataBufferB bytes.Buffer
+	errorDoingThings = printResults(matchingNodesA, bufio.NewWriter(&dataBufferA))
+	if errorDoingThings != nil {
+		return errorDoingThings
+	}
+	errorDoingThings = printResults(matchingNodesB, bufio.NewWriter(&dataBufferB))
+	if errorDoingThings != nil {
+		return errorDoingThings
+	}
+
+	diffString := diff.Diff(strings.TrimSuffix(dataBufferA.String(), "\n"), strings.TrimSuffix(dataBufferB.String(), "\n"))
+
+	if len(diffString) > 1 {
+		cmd.Print(diffString)
+		cmd.Print("\n")
+		if forceOsExit {
+			os.Exit(1)
+		}
+	}
+	return nil
+}

cmd/compare_test.go

@@ -0,0 +1,115 @@
+package cmd
+
+import (
+	"testing"
+
+	"github.com/mikefarah/yq/v3/test"
+)
+
+func TestCompareSameCmd(t *testing.T) {
+	cmd := getRootCommand()
+	result := test.RunCmd(cmd, "compare ../examples/data1.yaml ../examples/data1.yaml")
+	if result.Error != nil {
+		t.Error(result.Error)
+	}
+	expectedOutput := ``
+	test.AssertResult(t, expectedOutput, result.Output)
+}
+
+func TestCompareIgnoreCommentsCmd(t *testing.T) {
+	cmd := getRootCommand()
+	result := test.RunCmd(cmd, "compare --stripComments ../examples/data1.yaml ../examples/data1-no-comments.yaml")
+	if result.Error != nil {
+		t.Error(result.Error)
+	}
+	expectedOutput := ``
+	test.AssertResult(t, expectedOutput, result.Output)
+}
+
+func TestCompareDontIgnoreCommentsCmd(t *testing.T) {
+	forceOsExit = false
+	cmd := getRootCommand()
+	result := test.RunCmd(cmd, "compare ../examples/data1.yaml ../examples/data1-no-comments.yaml")
+
+	expectedOutput := `-a: simple # just the best
++a: simple
+ b: [1, 2]
+ c:
+   test: 1
+`
+	test.AssertResult(t, expectedOutput, result.Output)
+}
+
+func TestCompareExplodeAnchorsCommentsCmd(t *testing.T) {
+	cmd := getRootCommand()
+	result := test.RunCmd(cmd, "compare --explodeAnchors ../examples/simple-anchor.yaml ../examples/simple-anchor-exploded.yaml")
+	if result.Error != nil {
+		t.Error(result.Error)
+	}
+	expectedOutput := ``
+	test.AssertResult(t, expectedOutput, result.Output)
+}
+
+func TestCompareDontExplodeAnchorsCmd(t *testing.T) {
+	forceOsExit = false
+	cmd := getRootCommand()
+	result := test.RunCmd(cmd, "compare ../examples/simple-anchor.yaml ../examples/simple-anchor-exploded.yaml")
+
+	expectedOutput := `-foo: &foo
++foo:
+   a: 1
+ foobar:
+-  !!merge <<: *foo
++  a: 1
+`
+	test.AssertResult(t, expectedOutput, result.Output)
+}
+
+func TestCompareDifferentCmd(t *testing.T) {
+	forceOsExit = false
+	cmd := getRootCommand()
+	result := test.RunCmd(cmd, "compare ../examples/data1.yaml ../examples/data3.yaml")
+
+	expectedOutput := `-a: simple # just the best
+-b: [1, 2]
++a: "simple" # just the best
++b: [1, 3]
+ c:
+   test: 1
+`
+	test.AssertResult(t, expectedOutput, result.Output)
+}
+
+func TestComparePrettyCmd(t *testing.T) {
+	forceOsExit = false
+	cmd := getRootCommand()
+	result := test.RunCmd(cmd, "compare -P ../examples/data1.yaml ../examples/data3.yaml")
+	if result.Error != nil {
+		t.Error(result.Error)
+	}
+	expectedOutput := ` a: simple # just the best
+ b:
+   - 1
+-  - 2
++  - 3
+ c:
+   test: 1
+`
+	test.AssertResult(t, expectedOutput, result.Output)
+}
+
+func TestComparePathsCmd(t *testing.T) {
+	forceOsExit = false
+	cmd := getRootCommand()
+	result := test.RunCmd(cmd, "compare -P -ppv ../examples/data1.yaml ../examples/data3.yaml **")
+	if result.Error != nil {
+		t.Error(result.Error)
+	}
+	expectedOutput := ` a: simple # just the best
+ b.[0]: 1
+-b.[1]: 2
++b.[1]: 3
+ c.test: 1
+`
+	test.AssertResult(t, expectedOutput, result.Output)
+}

cmd/constant.go

@@ -0,0 +1,35 @@
+package cmd
+
+import (
+	"github.com/mikefarah/yq/v3/pkg/yqlib"
+	logging "gopkg.in/op/go-logging.v1"
+)
+
+var customTag = ""
+var printMode = "v"
+var printLength = false
+var unwrapScalar = true
+var customStyle = ""
+var anchorName = ""
+var makeAlias = false
+var stripComments = false
+var collectIntoArray = false
+var writeInplace = false
+var writeScript = ""
+var sourceYamlFile = ""
+var outputToJSON = false
+var exitStatus = false
+var prettyPrint = false
+var explodeAnchors = false
+var colorsEnabled = false
+var defaultValue = ""
+var indent = 2
+var overwriteFlag = false
+var autoCreateFlag = true
+var appendFlag = false
+var verbose = false
+var version = false
+var docIndex = "0"
+var log = logging.MustGetLogger("yq")
+var lib = yqlib.NewYqLib()
+var valueParser = yqlib.NewValueParser()

cmd/delete.go

@@ -0,0 +1,41 @@
+package cmd
+
+import (
+	"github.com/mikefarah/yq/v3/pkg/yqlib"
+	errors "github.com/pkg/errors"
+	"github.com/spf13/cobra"
+)
+
+func createDeleteCmd() *cobra.Command {
+	var cmdDelete = &cobra.Command{
+		Use:     "delete [yaml_file] [path_expression]",
+		Aliases: []string{"d"},
+		Short:   "yq d [--inplace/-i] [--doc/-d index] sample.yaml 'b.e(name==fred)'",
+		Example: `
+yq delete things.yaml 'a.b.c'
+yq delete things.yaml 'a.*.c'
+yq delete things.yaml 'a.(child.subchild==co*).c'
+yq delete things.yaml 'a.**'
+yq delete --inplace things.yaml 'a.b.c'
+yq delete --inplace -- things.yaml '--key-starting-with-dash' # need to use '--' to stop processing arguments as flags
+yq d -i things.yaml 'a.b.c'
+	`,
+		Long: `Deletes the nodes matching the given path expression from the YAML file.
+Outputs to STDOUT unless the inplace flag is used, in which case the file is updated instead.
+`,
+		RunE: deleteProperty,
+	}
+	cmdDelete.PersistentFlags().BoolVarP(&writeInplace, "inplace", "i", false, "update the yaml file inplace")
+	cmdDelete.PersistentFlags().StringVarP(&docIndex, "doc", "d", "0", "process document index number (0 based, * for all documents)")
+	return cmdDelete
+}
+
+func deleteProperty(cmd *cobra.Command, args []string) error {
+	if len(args) < 2 {
+		return errors.New("Must provide <filename> <path_to_delete>")
+	}
+	var updateCommands []yqlib.UpdateCommand = make([]yqlib.UpdateCommand, 1)
+	updateCommands[0] = yqlib.UpdateCommand{Command: "delete", Path: args[1]}
+
+	return updateDoc(args[0], updateCommands, cmd.OutOrStdout())
+}

cmd/delete_test.go

@@ -0,0 +1,246 @@
+package cmd
+
+import (
+	"fmt"
+	"strings"
+	"testing"
+
+	"github.com/mikefarah/yq/v3/test"
+)
+
+func TestDeleteYamlCmd(t *testing.T) {
+	content := `a: 2
+b:
+  c: things
+  d: something else
+`
+	filename := test.WriteTempYamlFile(content)
+	defer test.RemoveTempYamlFile(filename)
+
+	cmd := getRootCommand()
+	result := test.RunCmd(cmd, fmt.Sprintf("delete %s b.c", filename))
+	if result.Error != nil {
+		t.Error(result.Error)
+	}
+
+	expectedOutput := `a: 2
+b:
+  d: something else
+`
+	test.AssertResult(t, expectedOutput, result.Output)
+}
+
+func TestDeleteDeepDoesNotExistCmd(t *testing.T) {
+	content := `a: 2`
+	filename := test.WriteTempYamlFile(content)
+	defer test.RemoveTempYamlFile(filename)
+
+	cmd := getRootCommand()
+	result := test.RunCmd(cmd, fmt.Sprintf("delete %s b.c", filename))
+	if result.Error != nil {
+		t.Error(result.Error)
+	}
+
+	expectedOutput := `a: 2
+`
+	test.AssertResult(t, expectedOutput, result.Output)
+}
+
+func TestDeleteSplatYaml(t *testing.T) {
+	content := `a: other
+b: [3, 4]
+c:
+  toast: leave
+  test: 1
+  tell: 1
+  tasty.taco: cool
+`
+	filename := test.WriteTempYamlFile(content)
+	defer test.RemoveTempYamlFile(filename)
+
+	cmd := getRootCommand()
+	result := test.RunCmd(cmd, fmt.Sprintf("delete %s c.te*", filename))
+	if result.Error != nil {
+		t.Error(result.Error)
+	}
+
+	expectedOutput := `a: other
+b: [3, 4]
+c:
+  toast: leave
+  tasty.taco: cool
+`
+	test.AssertResult(t, expectedOutput, result.Output)
+}
+
+func TestDeleteSplatArrayYaml(t *testing.T) {
+	content := `a: 2
+b:
+ hi:
+  - thing: item1
+    name: fred
+  - thing: item2
+    name: sam
+`
+	filename := test.WriteTempYamlFile(content)
+	defer test.RemoveTempYamlFile(filename)
+
+	cmd := getRootCommand()
+	result := test.RunCmd(cmd, fmt.Sprintf("delete %s b.hi[*].thing", filename))
+	if result.Error != nil {
+		t.Error(result.Error)
+	}
+
+	expectedOutput := `a: 2
+b:
+  hi:
+    - name: fred
+    - name: sam
+`
+	test.AssertResult(t, expectedOutput, result.Output)
+}
+
+func TestDeleteDeepSplatArrayYaml(t *testing.T) {
+	content := `thing: 123
+b:
+ hi:
+  - thing: item1
+    name: fred
+`
+	filename := test.WriteTempYamlFile(content)
+	defer test.RemoveTempYamlFile(filename)
+
+	cmd := getRootCommand()
+	result := test.RunCmd(cmd, fmt.Sprintf("delete %s **.thing", filename))
+	if result.Error != nil {
+		t.Error(result.Error)
+	}
+
+	expectedOutput := `b:
+  hi:
+    - name: fred
+`
+	test.AssertResult(t, expectedOutput, result.Output)
+}
+
+func TestDeleteSplatPrefixYaml(t *testing.T) {
+	content := `a: 2
+b:
+ hi:
+   c: things
+   d: something else
+ there:
+   c: more things
+   d: more something else
+ there2:
+   c: more things also
+   d: more something else also
+`
+	filename := test.WriteTempYamlFile(content)
+	defer test.RemoveTempYamlFile(filename)
+
+	cmd := getRootCommand()
+	result := test.RunCmd(cmd, fmt.Sprintf("delete %s b.there*.c", filename))
+	if result.Error != nil {
+		t.Error(result.Error)
+	}
+
+	expectedOutput := `a: 2
+b:
+  hi:
+    c: things
+    d: something else
+  there:
+    d: more something else
+  there2:
+    d: more something else also
+`
+	test.AssertResult(t, expectedOutput, result.Output)
+}
+
+func TestDeleteYamlArrayCmd(t *testing.T) {
+	content := `- 1
+- 2
+- 3
+`
+	filename := test.WriteTempYamlFile(content)
+	defer test.RemoveTempYamlFile(filename)
+
+	cmd := getRootCommand()
+	result := test.RunCmd(cmd, fmt.Sprintf("delete %s [1]", filename))
+	if result.Error != nil {
+		t.Error(result.Error)
+	}
+
+	expectedOutput := `- 1
+- 3
+`
+	test.AssertResult(t, expectedOutput, result.Output)
+}
+
+func TestDeleteYamlArrayExpressionCmd(t *testing.T) {
+	content := `- name: fred
+- name: cat
+- name: thing
+`
+	filename := test.WriteTempYamlFile(content)
+	defer test.RemoveTempYamlFile(filename)
+
+	cmd := getRootCommand()
+	result := test.RunCmd(cmd, fmt.Sprintf("delete %s (name==cat)", filename))
+	if result.Error != nil {
+		t.Error(result.Error)
+	}
+
+	expectedOutput := `- name: fred
+- name: thing
+`
+	test.AssertResult(t, expectedOutput, result.Output)
+}
+
+func TestDeleteYamlMulti(t *testing.T) {
+	content := `apples: great
+---
+- 1
+- 2
+- 3
+`
+	filename := test.WriteTempYamlFile(content)
+	defer test.RemoveTempYamlFile(filename)
+
+	cmd := getRootCommand()
+	result := test.RunCmd(cmd, fmt.Sprintf("delete -d 1 %s [1]", filename))
+	if result.Error != nil {
+		t.Error(result.Error)
+	}
+
+	expectedOutput := `apples: great
+---
+- 1
+- 3
+`
+	test.AssertResult(t, expectedOutput, result.Output)
+}
+
+func TestDeleteYamlMultiAllCmd(t *testing.T) {
+	content := `b:
+  c: 3
+apples: great
+---
+apples: great
+something: else
+`
+	filename := test.WriteTempYamlFile(content)
+	defer test.RemoveTempYamlFile(filename)
+
+	cmd := getRootCommand()
+	result := test.RunCmd(cmd, fmt.Sprintf("delete %s -d * apples", filename))
+	if result.Error != nil {
+		t.Error(result.Error)
+	}
+	expectedOutput := `b:
+  c: 3
+---
+something: else`
+	test.AssertResult(t, expectedOutput, strings.Trim(result.Output, "\n "))
+}

cmd/merge.go

@@ -0,0 +1,74 @@
+package cmd
+
+import (
+	"github.com/mikefarah/yq/v3/pkg/yqlib"
+	errors "github.com/pkg/errors"
+	"github.com/spf13/cobra"
+	yaml "gopkg.in/yaml.v3"
+)
+
+func createMergeCmd() *cobra.Command {
+	var cmdMerge = &cobra.Command{
+		Use:     "merge [initial_yaml_file] [additional_yaml_file]...",
+		Aliases: []string{"m"},
+		Short:   "yq m [--inplace/-i] [--doc/-d index] [--overwrite/-x] [--append/-a] sample.yaml sample2.yaml",
+		Example: `
+yq merge things.yaml other.yaml
+yq merge --inplace things.yaml other.yaml
+yq m -i things.yaml other.yaml
+yq m --overwrite things.yaml other.yaml
+yq m -i -x things.yaml other.yaml
+yq m -i -a things.yaml other.yaml
+yq m -i --autocreate=false things.yaml other.yaml
+      `,
+		Long: `Updates the yaml file by adding/updating the path(s) and value(s) from additional yaml file(s).
+Outputs to STDOUT unless the inplace flag is used, in which case the file is updated instead.
+
+If overwrite flag is set then existing values will be overwritten using the values from each additional yaml file.
+If append flag is set then existing arrays will be merged with the arrays from each additional yaml file.
+`,
+		RunE: mergeProperties,
+	}
+	cmdMerge.PersistentFlags().BoolVarP(&writeInplace, "inplace", "i", false, "update the yaml file inplace")
+	cmdMerge.PersistentFlags().BoolVarP(&overwriteFlag, "overwrite", "x", false, "update the yaml file by overwriting existing values")
+	cmdMerge.PersistentFlags().BoolVarP(&autoCreateFlag, "autocreate", "c", true, "automatically create any missing entries")
+	cmdMerge.PersistentFlags().BoolVarP(&appendFlag, "append", "a", false, "update the yaml file by appending array values")
+	cmdMerge.PersistentFlags().StringVarP(&docIndex, "doc", "d", "0", "process document index number (0 based, * for all documents)")
+	return cmdMerge
+}
+
+/*
+* We don't deeply traverse arrays when appending a merge, instead we want to
+* append the entire array element.
+ */
+func createReadFunctionForMerge() func(*yaml.Node) ([]*yqlib.NodeContext, error) {
+	return func(dataBucket *yaml.Node) ([]*yqlib.NodeContext, error) {
+		return lib.Get(dataBucket, "**", !appendFlag)
+	}
+}
+
+func mergeProperties(cmd *cobra.Command, args []string) error {
+	var updateCommands []yqlib.UpdateCommand = make([]yqlib.UpdateCommand, 0)
+
+	if len(args) < 1 {
+		return errors.New("Must provide at least 1 yaml file")
+	}
+
+	if len(args) > 1 {
+		// first generate update commands from the file
+		var filesToMerge = args[1:]
+
+		for _, fileToMerge := range filesToMerge {
+			matchingNodes, errorProcessingFile := doReadYamlFile(fileToMerge, createReadFunctionForMerge(), false, 0)
+			if errorProcessingFile != nil {
+				return errorProcessingFile
+			}
+			for _, matchingNode := range matchingNodes {
+				mergePath := lib.MergePathStackToString(matchingNode.PathStack, appendFlag)
+				updateCommands = append(updateCommands, yqlib.UpdateCommand{Command: "update", Path: mergePath, Value: matchingNode.Node, Overwrite: overwriteFlag})
+			}
+		}
+	}
+
+	return updateDoc(args[0], updateCommands, cmd.OutOrStdout())
+}

cmd/merge_test.go

@@ -0,0 +1,337 @@
+package cmd
+
+import (
+	"fmt"
+	"os"
+	"runtime"
+	"testing"
+
+	"github.com/mikefarah/yq/v3/test"
+)
+
+func TestMergeCmd(t *testing.T) {
+	cmd := getRootCommand()
+	result := test.RunCmd(cmd, "merge ../examples/data1.yaml ../examples/data2.yaml")
+	if result.Error != nil {
+		t.Error(result.Error)
+	}
+	expectedOutput := `a: simple # just the best
+b: [1, 2]
+c:
+  test: 1
+  toast: leave
+  tell: 1
+  tasty.taco: cool
+`
+	test.AssertResult(t, expectedOutput, result.Output)
+}
+
+func TestMergeOneFileCmd(t *testing.T) {
+	cmd := getRootCommand()
+	result := test.RunCmd(cmd, "merge ../examples/data1.yaml")
+	if result.Error != nil {
+		t.Error(result.Error)
+	}
+	expectedOutput := `a: simple # just the best
+b: [1, 2]
+c:
+  test: 1
+`
+	test.AssertResult(t, expectedOutput, result.Output)
+}
+
+func TestMergeNoAutoCreateCmd(t *testing.T) {
+	cmd := getRootCommand()
+	result := test.RunCmd(cmd, "merge -c=false ../examples/data1.yaml ../examples/data2.yaml")
+	if result.Error != nil {
+		t.Error(result.Error)
+	}
+	expectedOutput := `a: simple # just the best
+b: [1, 2]
+c:
+  test: 1
+`
+	test.AssertResult(t, expectedOutput, result.Output)
+}
+
+func TestMergeOverwriteCmd(t *testing.T) {
+	cmd := getRootCommand()
+	result := test.RunCmd(cmd, "merge -c=false --overwrite ../examples/data1.yaml ../examples/data2.yaml")
+	if result.Error != nil {
+		t.Error(result.Error)
+	}
+	expectedOutput := `a: other # better than the original
+b: [3, 4]
+c:
+  test: 1
+`
+	test.AssertResult(t, expectedOutput, result.Output)
+}
+
+func TestMergeAppendCmd(t *testing.T) {
+	cmd := getRootCommand()
+	result := test.RunCmd(cmd, "merge --autocreate=false --append ../examples/data1.yaml ../examples/data2.yaml")
+	if result.Error != nil {
+		t.Error(result.Error)
+	}
+	expectedOutput := `a: simple # just the best
+b: [1, 2, 3, 4]
+c:
+  test: 1
+`
+	test.AssertResult(t, expectedOutput, result.Output)
+}
+
+func TestMergeAppendArraysCmd(t *testing.T) {
+	content := `people:
+  - name: Barry
+    age: 21`
+	filename := test.WriteTempYamlFile(content)
+	defer test.RemoveTempYamlFile(filename)
+
+	mergeContent := `people:
+  - name: Roger
+    age: 44`
+	mergeFilename := test.WriteTempYamlFile(mergeContent)
+	defer test.RemoveTempYamlFile(mergeFilename)
+
+	cmd := getRootCommand()
+	result := test.RunCmd(cmd, fmt.Sprintf("merge --append -d* %s %s", filename, mergeFilename))
+	if result.Error != nil {
+		t.Error(result.Error)
+	}
+	expectedOutput := `people:
+  - name: Barry
+    age: 21
+  - name: Roger
+    age: 44
+`
+	test.AssertResult(t, expectedOutput, result.Output)
+}
+
+func TestMergeOverwriteAndAppendCmd(t *testing.T) {
+	cmd := getRootCommand()
+	result := test.RunCmd(cmd, "merge --autocreate=false --append --overwrite ../examples/data1.yaml ../examples/data2.yaml")
+	if result.Error != nil {
+		t.Error(result.Error)
+	}
+	expectedOutput := `a: other # better than the original
+b: [1, 2, 3, 4]
+c:
+  test: 1
+`
+	test.AssertResult(t, expectedOutput, result.Output)
+}
+
+func TestMergeArraysCmd(t *testing.T) {
+	cmd := getRootCommand()
+	result := test.RunCmd(cmd, "merge --append ../examples/sample_array.yaml ../examples/sample_array_2.yaml")
+	if result.Error != nil {
+		t.Error(result.Error)
+	}
+	expectedOutput := `[1, 2, 3, 4, 5]
+`
+	test.AssertResult(t, expectedOutput, result.Output)
+}
+
+func TestMergeCmd_Multi(t *testing.T) {
+	cmd := getRootCommand()
+	result := test.RunCmd(cmd, "merge -d1 ../examples/multiple_docs_small.yaml ../examples/data1.yaml")
+	if result.Error != nil {
+		t.Error(result.Error)
+	}
+	expectedOutput := `a: Easy! as one two three
+---
+another:
+  document: here
+a: simple # just the best
+b:
+  - 1
+  - 2
+c:
+  test: 1
+---
+- 1
+- 2
+`
+	test.AssertResult(t, expectedOutput, result.Output)
+}
+
+func TestMergeYamlMultiAllCmd(t *testing.T) {
+	content := `b:
+  c: 3
+apples: green
+---
+something: else`
+	filename := test.WriteTempYamlFile(content)
+	defer test.RemoveTempYamlFile(filename)
+
+	mergeContent := `apples: red
+something: good`
+	mergeFilename := test.WriteTempYamlFile(mergeContent)
+	defer test.RemoveTempYamlFile(mergeFilename)
+
+	cmd := getRootCommand()
+	result := test.RunCmd(cmd, fmt.Sprintf("merge -d* %s %s", filename, mergeFilename))
+	if result.Error != nil {
+		t.Error(result.Error)
+	}
+	expectedOutput := `b:
+  c: 3
+apples: green
+something: good
+---
+something: else
+apples: red
+`
+	test.AssertResult(t, expectedOutput, result.Output)
+}
+
+func TestMergeSpecialCharacterKeysCmd(t *testing.T) {
+	content := ``
+	filename := test.WriteTempYamlFile(content)
+	defer test.RemoveTempYamlFile(filename)
+
+	mergeContent := `key[bracket]: value
+key.bracket: value
+key"value": value
+key'value': value
+`
+	mergeFilename := test.WriteTempYamlFile(mergeContent)
+	defer test.RemoveTempYamlFile(mergeFilename)
+
+	cmd := getRootCommand()
+	result := test.RunCmd(cmd, fmt.Sprintf("merge %s %s", filename, mergeFilename))
+	if result.Error != nil {
+		t.Error(result.Error)
+	}
+	test.AssertResult(t, mergeContent, result.Output)
+}
+
+func TestMergeYamlMultiAllOverwriteCmd(t *testing.T) {
+	content := `b:
+  c: 3
+apples: green
+---
+something: else`
+	filename := test.WriteTempYamlFile(content)
+	defer test.RemoveTempYamlFile(filename)
+
+	mergeContent := `apples: red
+something: good`
+	mergeFilename := test.WriteTempYamlFile(mergeContent)
+	defer test.RemoveTempYamlFile(mergeFilename)
+
+	cmd := getRootCommand()
+	result := test.RunCmd(cmd, fmt.Sprintf("merge --overwrite -d* %s %s", filename, mergeFilename))
+	if result.Error != nil {
+		t.Error(result.Error)
+	}
+	expectedOutput := `b:
+  c: 3
+apples: red
+something: good
+---
+something: good
+apples: red
+`
+	test.AssertResult(t, expectedOutput, result.Output)
+}
+
+func TestMergeYamlNullMapCmd(t *testing.T) {
+	content := `b:`
+	filename := test.WriteTempYamlFile(content)
+	defer test.RemoveTempYamlFile(filename)
+
+	mergeContent := `b:
+  thing: a frog
+`
+	mergeFilename := test.WriteTempYamlFile(mergeContent)
+	defer test.RemoveTempYamlFile(mergeFilename)
+
+	cmd := getRootCommand()
+	result := test.RunCmd(cmd, fmt.Sprintf("merge %s %s", filename, mergeFilename))
+	if result.Error != nil {
+		t.Error(result.Error)
+	}
+	test.AssertResult(t, mergeContent, result.Output)
+}
+
+func TestMergeCmd_Error(t *testing.T) {
+	cmd := getRootCommand()
+	result := test.RunCmd(cmd, "merge")
+	if result.Error == nil {
+		t.Error("Expected command to fail due to missing arg")
+	}
+	expectedOutput := `Must provide at least 1 yaml file`
+	test.AssertResult(t, expectedOutput, result.Error.Error())
+}
+
+func TestMergeCmd_ErrorUnreadableFile(t *testing.T) {
+	cmd := getRootCommand()
+	result := test.RunCmd(cmd, "merge ../examples/data1.yaml fake-unknown")
+	if result.Error == nil {
+		t.Error("Expected command to fail due to unknown file")
+	}
+	var expectedOutput string
+	if runtime.GOOS == "windows" {
+		expectedOutput = `open fake-unknown: The system cannot find the file specified.`
+	} else {
+		expectedOutput = `open fake-unknown: no such file or directory`
+	}
+	test.AssertResult(t, expectedOutput, result.Error.Error())
+}
+
+func TestMergeCmd_Inplace(t *testing.T) {
+	filename := test.WriteTempYamlFile(test.ReadTempYamlFile("../examples/data1.yaml"))
+	err := os.Chmod(filename, os.FileMode(int(0666)))
+	if err != nil {
+		t.Error(err)
+	}
+	defer test.RemoveTempYamlFile(filename)
+
+	cmd := getRootCommand()
+	result := test.RunCmd(cmd, fmt.Sprintf("merge -i %s ../examples/data2.yaml", filename))
+	if result.Error != nil {
+		t.Error(result.Error)
+	}
+	info, _ := os.Stat(filename)
+	gotOutput := test.ReadTempYamlFile(filename)
+	expectedOutput := `a: simple # just the best
+b: [1, 2]
+c:
+  test: 1
+  toast: leave
+  tell: 1
+  tasty.taco: cool
+`
+	test.AssertResult(t, expectedOutput, gotOutput)
+	test.AssertResult(t, os.FileMode(int(0666)), info.Mode())
+}
+
+func TestMergeAllowEmptyTargetCmd(t *testing.T) {
+	cmd := getRootCommand()
+	result := test.RunCmd(cmd, "merge ../examples/empty.yaml ../examples/data1.yaml")
+	if result.Error != nil {
+		t.Error(result.Error)
+	}
+	expectedOutput := `a: simple # just the best
+b:
+  - 1
+  - 2
+c:
+  test: 1
+`
+	test.AssertResult(t, expectedOutput, result.Output)
+}
+
+func TestMergeAllowEmptyMergeCmd(t *testing.T) {
+	cmd := getRootCommand()
+	result := test.RunCmd(cmd, "merge ../examples/data1.yaml ../examples/empty.yaml")
+	expectedOutput := `a: simple # just the best
+b: [1, 2]
+c:
+  test: 1
+`
+	test.AssertResult(t, expectedOutput, result.Output)
+}

cmd/new.go

@@ -0,0 +1,60 @@
+package cmd
+
+import (
+	"github.com/mikefarah/yq/v3/pkg/yqlib"
+	errors "github.com/pkg/errors"
+	"github.com/spf13/cobra"
+)
+
+func createNewCmd() *cobra.Command {
+	var cmdNew = &cobra.Command{
+		Use:     "new [path] [value]",
+		Aliases: []string{"n"},
+		Short:   "yq n [--script/-s script_file] a.b.c newValue",
+		Example: `
+yq new 'a.b.c' cat
+yq n 'a.b.c' --tag '!!str' true # force 'true' to be interpreted as a string instead of bool
+yq n 'a.b[+]' cat
+yq n -- '--key-starting-with-dash' cat # need to use '--' to stop processing arguments as flags
+yq n --script create_script.yaml
+      `,
+		Long: `Creates a new yaml w.r.t the given path and value.
+Outputs to STDOUT
+
+Create Scripts:
+Note that you can give a create script to perform more sophisticated yaml. This follows the same format as the update script.
+`,
+		RunE: newProperty,
+	}
+	cmdNew.PersistentFlags().StringVarP(&writeScript, "script", "s", "", "yaml script for creating yaml")
+	cmdNew.PersistentFlags().StringVarP(&customTag, "tag", "t", "", "set yaml tag (e.g. !!int)")
+	cmdNew.PersistentFlags().StringVarP(&customStyle, "style", "", "", "formatting style of the value: single, double, folded, flow, literal, tagged")
+	cmdNew.PersistentFlags().StringVarP(&anchorName, "anchorName", "", "", "anchor name")
+	cmdNew.PersistentFlags().BoolVarP(&makeAlias, "makeAlias", "", false, "create an alias using the value as the anchor name")
+	return cmdNew
+}
+
+func newProperty(cmd *cobra.Command, args []string) error {
+	var badArgsMessage = "Must provide <path_to_update> <value>"
+	if len(args) != 2 {
+		return errors.New(badArgsMessage)
+	}
+
+	var updateCommands, updateCommandsError = readUpdateCommands(args, 2, badArgsMessage)
+	if updateCommandsError != nil {
+		return updateCommandsError
+	}
+	newNode := lib.New(updateCommands[0].Path)
+
+	for _, updateCommand := range updateCommands {
+
+		errorUpdating := lib.Update(&newNode, updateCommand, true)
+
+		if errorUpdating != nil {
+			return errorUpdating
+		}
+	}
+
+	var encoder = yqlib.NewYamlEncoder(cmd.OutOrStdout(), indent, colorsEnabled)
+	return encoder.Encode(&newNode)
+}

cmd/new_test.go

@@ -0,0 +1,101 @@
+package cmd
+
+import (
+	"testing"
+
+	"github.com/mikefarah/yq/v3/test"
+)
+
+func TestNewCmd(t *testing.T) {
+	cmd := getRootCommand()
+	result := test.RunCmd(cmd, "new b.c 3")
+	if result.Error != nil {
+		t.Error(result.Error)
+	}
+	expectedOutput := `b:
+  c: 3
+`
+	test.AssertResult(t, expectedOutput, result.Output)
+}
+
+func TestNewAnchorCmd(t *testing.T) {
+	cmd := getRootCommand()
+	result := test.RunCmd(cmd, "new b.c 3 --anchorName=fred")
+	if result.Error != nil {
+		t.Error(result.Error)
+	}
+	expectedOutput := `b:
+  c: &fred 3
+`
+	test.AssertResult(t, expectedOutput, result.Output)
+}
+
+func TestNewAliasCmd(t *testing.T) {
+	cmd := getRootCommand()
+	result := test.RunCmd(cmd, "new b.c foo --makeAlias")
+	if result.Error != nil {
+		t.Error(result.Error)
+	}
+	expectedOutput := `b:
+  c: *foo
+`
+	test.AssertResult(t, expectedOutput, result.Output)
+}
+
+func TestNewArrayCmd(t *testing.T) {
+	cmd := getRootCommand()
+	result := test.RunCmd(cmd, "new b[0] 3")
+	if result.Error != nil {
+		t.Error(result.Error)
+	}
+	expectedOutput := `b:
+  - 3
+`
+	test.AssertResult(t, expectedOutput, result.Output)
+}
+
+func TestNewCmd_Error(t *testing.T) {
+	cmd := getRootCommand()
+	result := test.RunCmd(cmd, "new b.c")
+	if result.Error == nil {
+		t.Error("Expected command to fail due to missing arg")
+	}
+	expectedOutput := `Must provide <path_to_update> <value>`
+	test.AssertResult(t, expectedOutput, result.Error.Error())
+}
+
+func TestNewWithTaggedStyleCmd(t *testing.T) {
+	cmd := getRootCommand()
+	result := test.RunCmd(cmd, "new b.c cat --tag=!!str --style=tagged")
+	if result.Error != nil {
+		t.Error(result.Error)
+	}
+	expectedOutput := `b:
+  c: !!str cat
+`
+	test.AssertResult(t, expectedOutput, result.Output)
+}
+
+func TestNewWithDoubleQuotedStyleCmd(t *testing.T) {
+	cmd := getRootCommand()
+	result := test.RunCmd(cmd, "new b.c cat --style=double")
+	if result.Error != nil {
+		t.Error(result.Error)
+	}
+	expectedOutput := `b:
+  c: "cat"
+`
+	test.AssertResult(t, expectedOutput, result.Output)
+}
+
+func TestNewWithSingleQuotedStyleCmd(t *testing.T) {
+	cmd := getRootCommand()
+	result := test.RunCmd(cmd, "new b.c cat --style=single")
+	if result.Error != nil {
+		t.Error(result.Error)
+	}
+	expectedOutput := `b:
+  c: 'cat'
+`
+	test.AssertResult(t, expectedOutput, result.Output)
+}

cmd/prefix.go

@@ -0,0 +1,50 @@
+package cmd
+
+import (
+	"github.com/mikefarah/yq/v3/pkg/yqlib"
+	errors "github.com/pkg/errors"
+	"github.com/spf13/cobra"
+	yaml "gopkg.in/yaml.v3"
+)
+
+func createPrefixCmd() *cobra.Command {
+	var cmdPrefix = &cobra.Command{
+		Use:     "prefix [yaml_file] [path]",
+		Aliases: []string{"p"},
+		Short:   "yq p [--inplace/-i] [--doc/-d index] sample.yaml a.b.c",
+		Example: `
+yq prefix things.yaml 'a.b.c'
+yq prefix --inplace things.yaml 'a.b.c'
+yq prefix --inplace -- things.yaml '--key-starting-with-dash' # need to use '--' to stop processing arguments as flags
+yq p -i things.yaml 'a.b.c'
+yq p --doc 2 things.yaml 'a.b.d'
+yq p -d2 things.yaml 'a.b.d'
+      `,
+		Long: `Prefixes w.r.t to the yaml file at the given path.
+Outputs to STDOUT unless the inplace flag is used, in which case the file is updated instead.
+`,
+		RunE: prefixProperty,
+	}
+	cmdPrefix.PersistentFlags().BoolVarP(&writeInplace, "inplace", "i", false, "update the yaml file inplace")
+	cmdPrefix.PersistentFlags().StringVarP(&docIndex, "doc", "d", "0", "process document index number (0 based, * for all documents)")
+	return cmdPrefix
+}
+
+func prefixProperty(cmd *cobra.Command, args []string) error {
+
+	if len(args) < 2 {
+		return errors.New("Must provide <filename> <prefixed_path>")
+	}
+	updateCommand := yqlib.UpdateCommand{Command: "update", Path: args[1]}
+	log.Debugf("args %v", args)
+
+	var updateAll, docIndexInt, errorParsingDocIndex = parseDocumentIndex()
+	if errorParsingDocIndex != nil {
+		return errorParsingDocIndex
+	}
+
+	var updateData = func(dataBucket *yaml.Node, currentIndex int) error {
+		return prefixDocument(updateAll, docIndexInt, currentIndex, dataBucket, updateCommand)
+	}
+	return readAndUpdate(cmd.OutOrStdout(), args[0], updateData)
+}

cmd/prefix_test.go

@@ -0,0 +1,189 @@
+package cmd
+
+import (
+	"fmt"
+	"runtime"
+	"strings"
+	"testing"
+
+	"github.com/mikefarah/yq/v3/test"
+)
+
+func TestPrefixCmd(t *testing.T) {
+	content := `b:
+  c: 3
+`
+	filename := test.WriteTempYamlFile(content)
+	defer test.RemoveTempYamlFile(filename)
+
+	cmd := getRootCommand()
+	result := test.RunCmd(cmd, fmt.Sprintf("prefix %s d", filename))
+	if result.Error != nil {
+		t.Error(result.Error)
+	}
+	expectedOutput := `d:
+  b:
+    c: 3
+`
+	test.AssertResult(t, expectedOutput, result.Output)
+}
+
+func TestPrefixCmdArray(t *testing.T) {
+	content := `b:
+  c: 3
+`
+	filename := test.WriteTempYamlFile(content)
+	defer test.RemoveTempYamlFile(filename)
+
+	cmd := getRootCommand()
+	result := test.RunCmd(cmd, fmt.Sprintf("prefix %s [+].d.[+]", filename))
+	if result.Error != nil {
+		t.Error(result.Error)
+	}
+	expectedOutput := `- d:
+    - b:
+        c: 3
+`
+	test.AssertResult(t, expectedOutput, result.Output)
+}
+
+func TestPrefixCmd_MultiLayer(t *testing.T) {
+	content := `b:
+  c: 3
+`
+	filename := test.WriteTempYamlFile(content)
+	defer test.RemoveTempYamlFile(filename)
+
+	cmd := getRootCommand()
+	result := test.RunCmd(cmd, fmt.Sprintf("prefix %s d.e.f", filename))
+	if result.Error != nil {
+		t.Error(result.Error)
+	}
+	expectedOutput := `d:
+  e:
+    f:
+      b:
+        c: 3
+`
+	test.AssertResult(t, expectedOutput, result.Output)
+}
+
+func TestPrefixMultiCmd(t *testing.T) {
+	content := `b:
+  c: 3
+---
+apples: great
+`
+	filename := test.WriteTempYamlFile(content)
+	defer test.RemoveTempYamlFile(filename)
+
+	cmd := getRootCommand()
+	result := test.RunCmd(cmd, fmt.Sprintf("prefix %s -d 1 d", filename))
+	if result.Error != nil {
+		t.Error(result.Error)
+	}
+	expectedOutput := `b:
+  c: 3
+---
+d:
+  apples: great
+`
+	test.AssertResult(t, expectedOutput, result.Output)
+}
+func TestPrefixInvalidDocumentIndexCmd(t *testing.T) {
+	content := `b:
+  c: 3
+`
+	filename := test.WriteTempYamlFile(content)
+	defer test.RemoveTempYamlFile(filename)
+
+	cmd := getRootCommand()
+	result := test.RunCmd(cmd, fmt.Sprintf("prefix %s -df d", filename))
+	if result.Error == nil {
+		t.Error("Expected command to fail due to invalid path")
+	}
+	expectedOutput := `Document index f is not a integer or *: strconv.ParseInt: parsing "f": invalid syntax`
+	test.AssertResult(t, expectedOutput, result.Error.Error())
+}
+
+func TestPrefixBadDocumentIndexCmd(t *testing.T) {
+	content := `b:
+  c: 3
+`
+	filename := test.WriteTempYamlFile(content)
+	defer test.RemoveTempYamlFile(filename)
+
+	cmd := getRootCommand()
+	result := test.RunCmd(cmd, fmt.Sprintf("prefix %s -d 1 d", filename))
+	if result.Error == nil {
+		t.Error("Expected command to fail due to invalid path")
+	}
+	expectedOutput := `asked to process document index 1 but there are only 1 document(s)`
+	test.AssertResult(t, expectedOutput, result.Error.Error())
+}
+func TestPrefixMultiAllCmd(t *testing.T) {
+	content := `b:
+  c: 3
+---
+apples: great
+`
+	filename := test.WriteTempYamlFile(content)
+	defer test.RemoveTempYamlFile(filename)
+
+	cmd := getRootCommand()
+	result := test.RunCmd(cmd, fmt.Sprintf("prefix %s -d * d", filename))
+	if result.Error != nil {
+		t.Error(result.Error)
+	}
+	expectedOutput := `d:
+  b:
+    c: 3
+---
+d:
+  apples: great`
+	test.AssertResult(t, expectedOutput, strings.Trim(result.Output, "\n "))
+}
+
+func TestPrefixCmd_Error(t *testing.T) {
+	cmd := getRootCommand()
+	result := test.RunCmd(cmd, "prefix")
+	if result.Error == nil {
+		t.Error("Expected command to fail due to missing arg")
+	}
+	expectedOutput := `Must provide <filename> <prefixed_path>`
+	test.AssertResult(t, expectedOutput, result.Error.Error())
+}
+
+func TestPrefixCmd_ErrorUnreadableFile(t *testing.T) {
+	cmd := getRootCommand()
+	result := test.RunCmd(cmd, "prefix fake-unknown a.b")
+	if result.Error == nil {
+		t.Error("Expected command to fail due to unknown file")
+	}
+	var expectedOutput string
+	if runtime.GOOS == "windows" {
+		expectedOutput = `open fake-unknown: The system cannot find the file specified.`
+	} else {
+		expectedOutput = `open fake-unknown: no such file or directory`
+	}
+	test.AssertResult(t, expectedOutput, result.Error.Error())
+}
+
+func TestPrefixCmd_Inplace(t *testing.T) {
+	content := `b:
+  c: 3
+`
+	filename := test.WriteTempYamlFile(content)
+	defer test.RemoveTempYamlFile(filename)
+
+	cmd := getRootCommand()
+	result := test.RunCmd(cmd, fmt.Sprintf("prefix -i %s d", filename))
+	if result.Error != nil {
+		t.Error(result.Error)
+	}
+	gotOutput := test.ReadTempYamlFile(filename)
+	expectedOutput := `d:
+  b:
+    c: 3`
+	test.AssertResult(t, expectedOutput, strings.Trim(gotOutput, "\n "))
+}

cmd/read.go

@@ -0,0 +1,66 @@
+package cmd
+
+import (
+	errors "github.com/pkg/errors"
+	"github.com/spf13/cobra"
+)
+
+func createReadCmd() *cobra.Command {
+	var cmdRead = &cobra.Command{
+		Use:     "read [yaml_file] [path_expression]",
+		Aliases: []string{"r"},
+		Short:   "yq r [--printMode/-p pv] sample.yaml 'b.e(name==fr*).value'",
+		Example: `
+yq read things.yaml 'a.b.c'
+yq r - 'a.b.c' # reads from stdin
+yq r things.yaml 'a.*.c'
+yq r things.yaml 'a.**.c' # deep splat
+yq r things.yaml 'a.(child.subchild==co*).c'
+yq r -d1 things.yaml 'a.array[0].blah'
+yq r things.yaml 'a.array[*].blah'
+yq r -- things.yaml '--key-starting-with-dashes.blah'
+      `,
+		Long: "Outputs the value of the given path in the yaml file to STDOUT",
+		RunE: readProperty,
+	}
+	cmdRead.PersistentFlags().StringVarP(&docIndex, "doc", "d", "0", "process document index number (0 based, * for all documents)")
+	cmdRead.PersistentFlags().StringVarP(&printMode, "printMode", "p", "v", "print mode (v (values, default), p (paths), pv (path and value pairs)")
+	cmdRead.PersistentFlags().StringVarP(&defaultValue, "defaultValue", "D", "", "default value printed when there are no results")
+	cmdRead.PersistentFlags().BoolVarP(&printLength, "length", "l", false, "print length of results")
+	cmdRead.PersistentFlags().BoolVarP(&collectIntoArray, "collect", "c", false, "collect results into array")
+	cmdRead.PersistentFlags().BoolVarP(&unwrapScalar, "unwrapScalar", "", true, "unwrap scalar, print the value with no quotes, colors or comments")
+	cmdRead.PersistentFlags().BoolVarP(&stripComments, "stripComments", "", false, "print yaml without any comments")
+	cmdRead.PersistentFlags().BoolVarP(&explodeAnchors, "explodeAnchors", "X", false, "explode anchors")
+	cmdRead.PersistentFlags().BoolVarP(&exitStatus, "exitStatus", "e", false, "set exit status if no matches are found")
+	return cmdRead
+}
+
+func readProperty(cmd *cobra.Command, args []string) error {
+	var path = ""
+
+	if len(args) < 1 {
+		return errors.New("Must provide filename")
+	} else if len(args) > 1 {
+		path = args[1]
+	}
+
+	var updateAll, docIndexInt, errorParsingDocIndex = parseDocumentIndex()
+	if errorParsingDocIndex != nil {
+		return errorParsingDocIndex
+	}
+
+	matchingNodes, errorReadingStream := readYamlFile(args[0], path, updateAll, docIndexInt)
+
+	if exitStatus && len(matchingNodes) == 0 {
+		cmd.SilenceUsage = true
+		return errors.New("No matches found")
+	}
+
+	if errorReadingStream != nil {
+		cmd.SilenceUsage = true
+		return errorReadingStream
+	}
+	out := cmd.OutOrStdout()
+
+	return printResults(matchingNodes, out)
+}

cmd/root.go

@@ -0,0 +1,60 @@
+package cmd
+
+import (
+	"os"
+
+	"github.com/spf13/cobra"
+	logging "gopkg.in/op/go-logging.v1"
+)
+
+func New() *cobra.Command {
+	var rootCmd = &cobra.Command{
+		Use:   "yq",
+		Short: "yq is a lightweight and portable command-line YAML processor.",
+		Long:  `yq is a lightweight and portable command-line YAML processor. It aims to be the jq or sed of yaml files.`,
+		RunE: func(cmd *cobra.Command, args []string) error {
+			if version {
+				cmd.Print(GetVersionDisplay())
+				return nil
+			}
+			cmd.Println(cmd.UsageString())
+
+			return nil
+		},
+		PersistentPreRun: func(cmd *cobra.Command, args []string) {
+			var format = logging.MustStringFormatter(
+				`%{color}%{time:15:04:05} %{shortfunc} [%{level:.4s}]%{color:reset} %{message}`,
+			)
+			var backend = logging.AddModuleLevel(
+				logging.NewBackendFormatter(logging.NewLogBackend(os.Stderr, "", 0), format))
+
+			if verbose {
+				backend.SetLevel(logging.DEBUG, "")
+			} else {
+				backend.SetLevel(logging.ERROR, "")
+			}
+
+			logging.SetBackend(backend)
+		},
+	}
+
+	rootCmd.PersistentFlags().BoolVarP(&verbose, "verbose", "v", false, "verbose mode")
+	rootCmd.PersistentFlags().BoolVarP(&outputToJSON, "tojson", "j", false, "output as json. By default it prints a json document in one line, use the prettyPrint flag to print a formatted doc.")
+	rootCmd.PersistentFlags().BoolVarP(&prettyPrint, "prettyPrint", "P", false, "pretty print")
+	rootCmd.PersistentFlags().IntVarP(&indent, "indent", "I", 2, "sets indent level for output")
+	rootCmd.Flags().BoolVarP(&version, "version", "V", false, "Print version information and quit")
+	rootCmd.PersistentFlags().BoolVarP(&colorsEnabled, "colors", "C", false, "print with colors")
+
+	rootCmd.AddCommand(
+		createReadCmd(),
+		createCompareCmd(),
+		createValidateCmd(),
+		createWriteCmd(),
+		createPrefixCmd(),
+		createDeleteCmd(),
+		createNewCmd(),
+		createMergeCmd(),
+		createBashCompletionCmd(rootCmd),
+	)
+	return rootCmd
+}

cmd/shell_completion.go

@@ -0,0 +1,57 @@
+package cmd
+
+import (
+	"fmt"
+	"os"
+
+	"github.com/spf13/cobra"
+)
+
+var shellVariant = "bash"
+
+func createBashCompletionCmd(rootCmd *cobra.Command) *cobra.Command {
+	var completionCmd = &cobra.Command{
+		Use:   "shell-completion",
+		Short: "Generates shell completion scripts",
+		Long: `To load completion for:
+bash:
+	Run	
+	. <(yq shell-completion)
+	
+	To configure your bash shell to load completions for each session add to
+	your bashrc
+	
+	# ~/.bashrc or ~/.profile
+	. <(yq shell-completion)
+
+zsh:
+	The generated completion script should be put somewhere in your $fpath named _yq
+
+powershell:
+	Users need PowerShell version 5.0 or above, which comes with Windows 10 and 
+	can be downloaded separately for Windows 7 or 8.1. They can then write the 
+	completions to a file and source this file from their PowerShell profile, 
+	which is referenced by the $Profile environment variable.
+
+fish:
+	Save the output to a fish file and add it to your completions directory.
+
+	`,
+		RunE: func(cmd *cobra.Command, args []string) error {
+			switch shellVariant {
+			case "bash", "":
+				return rootCmd.GenBashCompletion(os.Stdout)
+			case "zsh":
+				return rootCmd.GenZshCompletion(os.Stdout)
+			case "fish":
+				return rootCmd.GenFishCompletion(os.Stdout, true)
+			case "powershell":
+				return rootCmd.GenPowerShellCompletion(os.Stdout)
+			default:
+				return fmt.Errorf("Unknown variant %v", shellVariant)
+			}
+		},
+	}
+	completionCmd.PersistentFlags().StringVarP(&shellVariant, "variation", "V", "", "shell variation: bash (default), zsh, fish, powershell")
+	return completionCmd
+}

cmd/utils.go

@@ -0,0 +1,609 @@
+package cmd
+
+import (
+	"bufio"
+	"fmt"
+	"io"
+	"io/ioutil"
+	"os"
+	"strconv"
+
+	"github.com/mikefarah/yq/v3/pkg/yqlib"
+	errors "github.com/pkg/errors"
+	yaml "gopkg.in/yaml.v3"
+)
+
+type readDataFn func(dataBucket *yaml.Node) ([]*yqlib.NodeContext, error)
+
+func createReadFunction(path string) func(*yaml.Node) ([]*yqlib.NodeContext, error) {
+	return func(dataBucket *yaml.Node) ([]*yqlib.NodeContext, error) {
+		return lib.Get(dataBucket, path, true)
+	}
+}
+
+func readYamlFile(filename string, path string, updateAll bool, docIndexInt int) ([]*yqlib.NodeContext, error) {
+	return doReadYamlFile(filename, createReadFunction(path), updateAll, docIndexInt)
+}
+
+func doReadYamlFile(filename string, readFn readDataFn, updateAll bool, docIndexInt int) ([]*yqlib.NodeContext, error) {
+	var matchingNodes []*yqlib.NodeContext
+
+	var currentIndex = 0
+	var errorReadingStream = readStream(filename, func(decoder *yaml.Decoder) error {
+		for {
+			var dataBucket yaml.Node
+			errorReading := decoder.Decode(&dataBucket)
+
+			if errorReading == io.EOF {
+				return handleEOF(updateAll, docIndexInt, currentIndex)
+			} else if errorReading != nil {
+				return errorReading
+			}
+
+			var errorParsing error
+			matchingNodes, errorParsing = appendDocument(matchingNodes, dataBucket, readFn, updateAll, docIndexInt, currentIndex)
+			if errorParsing != nil {
+				return errorParsing
+			}
+			if !updateAll && currentIndex == docIndexInt {
+				log.Debug("all done")
+				return nil
+			}
+			currentIndex = currentIndex + 1
+		}
+	})
+	return matchingNodes, errorReadingStream
+}
+
+func handleEOF(updateAll bool, docIndexInt int, currentIndex int) error {
+	log.Debugf("done %v / %v", currentIndex, docIndexInt)
+	if !updateAll && currentIndex <= docIndexInt && docIndexInt != 0 {
+		return fmt.Errorf("Could not process document index %v as there are only %v document(s)", docIndex, currentIndex)
+	}
+	return nil
+}
+
+func appendDocument(originalMatchingNodes []*yqlib.NodeContext, dataBucket yaml.Node, readFn readDataFn, updateAll bool, docIndexInt int, currentIndex int) ([]*yqlib.NodeContext, error) {
+	log.Debugf("processing document %v - requested index %v", currentIndex, docIndexInt)
+	yqlib.DebugNode(&dataBucket)
+	if !updateAll && currentIndex != docIndexInt {
+		return originalMatchingNodes, nil
+	}
+	log.Debugf("reading in document %v", currentIndex)
+	matchingNodes, errorParsing := readFn(&dataBucket)
+	if errorParsing != nil {
+		return nil, errors.Wrapf(errorParsing, "Error reading path in document index %v", currentIndex)
+	}
+	return append(originalMatchingNodes, matchingNodes...), nil
+}
+
+func lengthOf(node *yaml.Node) int {
+	kindToCheck := node.Kind
+	if node.Kind == yaml.DocumentNode && len(node.Content) == 1 {
+		log.Debugf("length of document node, calculating length of child")
+		kindToCheck = node.Content[0].Kind
+	}
+	switch kindToCheck {
+	case yaml.ScalarNode:
+		return len(node.Value)
+	case yaml.MappingNode:
+		return len(node.Content) / 2
+	default:
+		return len(node.Content)
+	}
+}
+
+// transforms node before printing, if required
+func transformNode(node *yaml.Node) *yaml.Node {
+	if printLength {
+		return &yaml.Node{Kind: yaml.ScalarNode, Value: fmt.Sprintf("%v", lengthOf(node))}
+	}
+	return node
+}
+
+func printNode(node *yaml.Node, writer io.Writer) error {
+	var encoder yqlib.Encoder
+	if node.Kind == yaml.ScalarNode && unwrapScalar && !outputToJSON {
+		return writeString(writer, node.Value+"\n")
+	}
+	if outputToJSON {
+		encoder = yqlib.NewJsonEncoder(writer, prettyPrint, indent)
+	} else {
+		encoder = yqlib.NewYamlEncoder(writer, indent, colorsEnabled)
+	}
+	return encoder.Encode(node)
+}
+
+func removeComments(matchingNodes []*yqlib.NodeContext) {
+	for _, nodeContext := range matchingNodes {
+		removeCommentOfNode(nodeContext.Node)
+	}
+}
+
+func removeCommentOfNode(node *yaml.Node) {
+	node.HeadComment = ""
+	node.LineComment = ""
+	node.FootComment = ""
+
+	for _, child := range node.Content {
+		removeCommentOfNode(child)
+	}
+}
+
+func setStyle(matchingNodes []*yqlib.NodeContext, style yaml.Style) {
+	for _, nodeContext := range matchingNodes {
+		updateStyleOfNode(nodeContext.Node, style)
+	}
+}
+
+func updateStyleOfNode(node *yaml.Node, style yaml.Style) {
+	node.Style = style
+
+	for _, child := range node.Content {
+		updateStyleOfNode(child, style)
+	}
+}
+
+func writeString(writer io.Writer, txt string) error {
+	_, errorWriting := writer.Write([]byte(txt))
+	return errorWriting
+}
+
+func setIfNotThere(node *yaml.Node, key string, value *yaml.Node) {
+	for index := 0; index < len(node.Content); index = index + 2 {
+		keyNode := node.Content[index]
+		if keyNode.Value == key {
+			return
+		}
+	}
+	// need to add it to the map
+	mapEntryKey := yaml.Node{Value: key, Kind: yaml.ScalarNode}
+	node.Content = append(node.Content, &mapEntryKey)
+	node.Content = append(node.Content, value)
+}
+
+func applyAlias(node *yaml.Node, alias *yaml.Node) {
+	for index := 0; index < len(alias.Content); index = index + 2 {
+		keyNode := alias.Content[index]
+		log.Debugf("applying alias key %v", keyNode.Value)
+		valueNode := alias.Content[index+1]
+		setIfNotThere(node, keyNode.Value, valueNode)
+	}
+}
+
+func explodeNode(node *yaml.Node) error {
+	node.Anchor = ""
+	switch node.Kind {
+	case yaml.SequenceNode, yaml.DocumentNode:
+		for index, contentNode := range node.Content {
+			log.Debugf("exploding index %v", index)
+			errorInContent := explodeNode(contentNode)
+			if errorInContent != nil {
+				return errorInContent
+			}
+		}
+		return nil
+	case yaml.AliasNode:
+		log.Debugf("its an alias!")
+		node.Kind = node.Alias.Kind
+		node.Style = node.Alias.Style
+		node.Tag = node.Alias.Tag
+		node.Content = node.Alias.Content
+		node.Value = node.Alias.Value
+		node.Alias = nil
+		return nil
+	case yaml.MappingNode:
+		for index := 0; index < len(node.Content); index = index + 2 {
+			keyNode := node.Content[index]
+			valueNode := node.Content[index+1]
+			log.Debugf("traversing %v", keyNode.Value)
+			if keyNode.Value != "<<" {
+				errorInContent := explodeNode(valueNode)
+				if errorInContent != nil {
+					return errorInContent
+				}
+			} else {
+				if valueNode.Kind == yaml.SequenceNode {
+					log.Debugf("an alias merge list!")
+					for index := len(valueNode.Content) - 1; index >= 0; index = index - 1 {
+						aliasNode := valueNode.Content[index]
+						applyAlias(node, aliasNode.Alias)
+					}
+				} else {
+					log.Debugf("an alias merge!")
+					applyAlias(node, valueNode.Alias)
+				}
+				node.Content = append(node.Content[:index], node.Content[index+2:]...)
+				//replay that index, since the array is shorter now.
+				index = index - 2
+			}
+		}
+
+		return nil
+	default:
+		return nil
+	}
+}
+
+func explode(matchingNodes []*yqlib.NodeContext) error {
+	log.Debug("exploding nodes")
+	for _, nodeContext := range matchingNodes {
+		log.Debugf("exploding %v", nodeContext.Head)
+		errorExplodingNode := explodeNode(nodeContext.Node)
+		if errorExplodingNode != nil {
+			return errorExplodingNode
+		}
+	}
+	return nil
+}
+
+func printResults(matchingNodes []*yqlib.NodeContext, writer io.Writer) error {
+	if prettyPrint {
+		setStyle(matchingNodes, 0)
+	}
+
+	if stripComments {
+		removeComments(matchingNodes)
+	}
+
+	//always explode anchors when printing json
+	if explodeAnchors || outputToJSON {
+		errorExploding := explode(matchingNodes)
+		if errorExploding != nil {
+			return errorExploding
+		}
+	}
+
+	bufferedWriter := bufio.NewWriter(writer)
+	defer safelyFlush(bufferedWriter)
+
+	if len(matchingNodes) == 0 {
+		log.Debug("no matching results, nothing to print")
+		if defaultValue != "" {
+			return writeString(bufferedWriter, defaultValue)
+		}
+		return nil
+	}
+	var errorWriting error
+
+	var arrayCollection = yaml.Node{Kind: yaml.SequenceNode}
+
+	for _, mappedDoc := range matchingNodes {
+		switch printMode {
+		case "p":
+			errorWriting = writeString(bufferedWriter, lib.PathStackToString(mappedDoc.PathStack)+"\n")
+			if errorWriting != nil {
+				return errorWriting
+			}
+		case "pv", "vp":
+			// put it into a node and print that.
+			var parentNode = yaml.Node{Kind: yaml.MappingNode}
+			parentNode.Content = make([]*yaml.Node, 2)
+			parentNode.Content[0] = &yaml.Node{Kind: yaml.ScalarNode, Value: lib.PathStackToString(mappedDoc.PathStack)}
+			parentNode.Content[1] = transformNode(mappedDoc.Node)
+			if collectIntoArray {
+				arrayCollection.Content = append(arrayCollection.Content, &parentNode)
+			} else if err := printNode(&parentNode, bufferedWriter); err != nil {
+				return err
+			}
+		default:
+			if collectIntoArray {
+				arrayCollection.Content = append(arrayCollection.Content, mappedDoc.Node)
+			} else if err := printNode(transformNode(mappedDoc.Node), bufferedWriter); err != nil {
+				return err
+			}
+		}
+	}
+
+	if collectIntoArray {
+		if err := printNode(transformNode(&arrayCollection), bufferedWriter); err != nil {
+			return err
+		}
+	}
+
+	return nil
+}
+
+func parseDocumentIndex() (bool, int, error) {
+	if docIndex == "*" {
+		return true, -1, nil
+	}
+	docIndexInt64, err := strconv.ParseInt(docIndex, 10, 32)
+	if err != nil {
+		return false, -1, errors.Wrapf(err, "Document index %v is not a integer or *", docIndex)
+	}
+	return false, int(docIndexInt64), nil
+}
+
+type updateDataFn func(dataBucket *yaml.Node, currentIndex int) error
+
+func isNullDocument(dataBucket *yaml.Node) bool {
+	return dataBucket.Kind == yaml.DocumentNode && (len(dataBucket.Content) == 0 ||
+		dataBucket.Content[0].Kind == yaml.ScalarNode && dataBucket.Content[0].Tag == "!!null")
+}
+
+func mapYamlDecoder(updateData updateDataFn, encoder yqlib.Encoder) yamlDecoderFn {
+	return func(decoder *yaml.Decoder) error {
+		var dataBucket yaml.Node
+		var errorReading error
+		var errorWriting error
+		var errorUpdating error
+		var currentIndex = 0
+
+		var updateAll, docIndexInt, errorParsingDocIndex = parseDocumentIndex()
+		if errorParsingDocIndex != nil {
+			return errorParsingDocIndex
+		}
+
+		for {
+			log.Debugf("Read doc %v", currentIndex)
+			errorReading = decoder.Decode(&dataBucket)
+
+			if errorReading == io.EOF && docIndexInt == 0 && currentIndex == 0 {
+				//empty document, lets just make one
+				dataBucket = yaml.Node{Kind: yaml.DocumentNode, Content: make([]*yaml.Node, 1)}
+				child := yaml.Node{Kind: yaml.MappingNode}
+				dataBucket.Content[0] = &child
+			} else if isNullDocument(&dataBucket) && (updateAll || docIndexInt == currentIndex) {
+				child := yaml.Node{Kind: yaml.MappingNode}
+				dataBucket.Content[0] = &child
+			} else if errorReading == io.EOF {
+				if !updateAll && currentIndex <= docIndexInt {
+					return fmt.Errorf("asked to process document index %v but there are only %v document(s)", docIndex, currentIndex)
+				}
+				return nil
+			} else if errorReading != nil {
+				return errors.Wrapf(errorReading, "Error reading document at index %v, %v", currentIndex, errorReading)
+			}
+			errorUpdating = updateData(&dataBucket, currentIndex)
+			if errorUpdating != nil {
+				return errors.Wrapf(errorUpdating, "Error updating document at index %v", currentIndex)
+			}
+
+			if prettyPrint {
+				updateStyleOfNode(&dataBucket, 0)
+			}
+
+			errorWriting = encoder.Encode(&dataBucket)
+
+			if errorWriting != nil {
+				return errors.Wrapf(errorWriting, "Error writing document at index %v, %v", currentIndex, errorWriting)
+			}
+			currentIndex = currentIndex + 1
+		}
+	}
+}
+
+func prefixDocument(updateAll bool, docIndexInt int, currentIndex int, dataBucket *yaml.Node, updateCommand yqlib.UpdateCommand) error {
+	if updateAll || currentIndex == docIndexInt {
+		log.Debugf("Prefixing document %v", currentIndex)
+		yqlib.DebugNode(dataBucket)
+		updateCommand.Value = dataBucket.Content[0]
+		dataBucket.Content = make([]*yaml.Node, 1)
+
+		newNode := lib.New(updateCommand.Path)
+		dataBucket.Content[0] = &newNode
+
+		errorUpdating := lib.Update(dataBucket, updateCommand, true)
+		if errorUpdating != nil {
+			return errorUpdating
+		}
+	}
+	return nil
+}
+
+func updateDoc(inputFile string, updateCommands []yqlib.UpdateCommand, writer io.Writer) error {
+	var updateAll, docIndexInt, errorParsingDocIndex = parseDocumentIndex()
+	if errorParsingDocIndex != nil {
+		return errorParsingDocIndex
+	}
+
+	var updateData = func(dataBucket *yaml.Node, currentIndex int) error {
+		if updateAll || currentIndex == docIndexInt {
+			log.Debugf("Updating doc %v", currentIndex)
+			for _, updateCommand := range updateCommands {
+				log.Debugf("Processing update to Path %v", updateCommand.Path)
+				errorUpdating := lib.Update(dataBucket, updateCommand, autoCreateFlag)
+				if errorUpdating != nil {
+					return errorUpdating
+				}
+			}
+		}
+		return nil
+	}
+	return readAndUpdate(writer, inputFile, updateData)
+}
+
+func readAndUpdate(stdOut io.Writer, inputFile string, updateData updateDataFn) error {
+	var destination io.Writer
+	var destinationName string
+	var completedSuccessfully = false
+	if writeInplace {
+		info, err := os.Stat(inputFile)
+		if err != nil {
+			return err
+		}
+		// mkdir temp dir as some docker images does not have temp dir
+		_, err = os.Stat(os.TempDir())
+		if os.IsNotExist(err) {
+			err = os.Mkdir(os.TempDir(), 0700)
+			if err != nil {
+				return err
+			}
+		} else if err != nil {
+			return err
+		}
+		tempFile, err := ioutil.TempFile("", "temp")
+		if err != nil {
+			return err
+		}
+		destinationName = tempFile.Name()
+		err = os.Chmod(destinationName, info.Mode())
+		if err != nil {
+			return err
+		}
+		destination = tempFile
+		defer func() {
+			safelyCloseFile(tempFile)
+			if completedSuccessfully {
+				safelyRenameFile(tempFile.Name(), inputFile)
+			}
+		}()
+	} else {
+		destination = stdOut
+		destinationName = "Stdout"
+	}
+
+	log.Debugf("Writing to %v from %v", destinationName, inputFile)
+
+	bufferedWriter := bufio.NewWriter(destination)
+	defer safelyFlush(bufferedWriter)
+
+	var encoder yqlib.Encoder
+	if outputToJSON {
+		encoder = yqlib.NewJsonEncoder(bufferedWriter, prettyPrint, indent)
+	} else {
+		encoder = yqlib.NewYamlEncoder(bufferedWriter, indent, colorsEnabled)
+	}
+
+	var errorProcessing = readStream(inputFile, mapYamlDecoder(updateData, encoder))
+	completedSuccessfully = errorProcessing == nil
+	return errorProcessing
+}
+
+type updateCommandParsed struct {
+	Command string
+	Path    string
+	Value   yaml.Node
+}
+
+func readUpdateCommands(args []string, expectedArgs int, badArgsMessage string) ([]yqlib.UpdateCommand, error) {
+	var updateCommands []yqlib.UpdateCommand = make([]yqlib.UpdateCommand, 0)
+	if writeScript != "" {
+		var parsedCommands = make([]updateCommandParsed, 0)
+
+		err := readData(writeScript, 0, &parsedCommands)
+
+		if err != nil && err != io.EOF {
+			return nil, err
+		}
+
+		log.Debugf("Read write commands file '%v'", parsedCommands)
+		for index := range parsedCommands {
+			parsedCommand := parsedCommands[index]
+			updateCommand := yqlib.UpdateCommand{Command: parsedCommand.Command, Path: parsedCommand.Path, Value: &parsedCommand.Value, Overwrite: true}
+			updateCommands = append(updateCommands, updateCommand)
+		}
+
+		log.Debugf("Read write commands file '%v'", updateCommands)
+	} else if sourceYamlFile != "" && len(args) == expectedArgs-1 {
+		log.Debugf("Reading value from %v", sourceYamlFile)
+		var value yaml.Node
+		err := readData(sourceYamlFile, 0, &value)
+		if err != nil && err != io.EOF {
+			return nil, err
+		}
+		log.Debug("args %v", args[expectedArgs-2])
+		updateCommands = make([]yqlib.UpdateCommand, 1)
+		updateCommands[0] = yqlib.UpdateCommand{Command: "update", Path: args[expectedArgs-2], Value: value.Content[0], Overwrite: true}
+	} else if len(args) == expectedArgs {
+		updateCommands = make([]yqlib.UpdateCommand, 1)
+		log.Debug("args %v", args)
+		log.Debug("path %v", args[expectedArgs-2])
+		log.Debug("Value %v", args[expectedArgs-1])
+		updateCommands[0] = yqlib.UpdateCommand{Command: "update", Path: args[expectedArgs-2], Value: valueParser.Parse(args[expectedArgs-1], customTag, customStyle, anchorName, makeAlias), Overwrite: true}
+	} else if len(args) == expectedArgs-1 {
+		// don't update the value
+		updateCommands = make([]yqlib.UpdateCommand, 1)
+		log.Debug("args %v", args)
+		log.Debug("path %v", args[expectedArgs-2])
+		updateCommands[0] = yqlib.UpdateCommand{Command: "update", Path: args[expectedArgs-2], Value: valueParser.Parse("", customTag, customStyle, anchorName, makeAlias), Overwrite: true, DontUpdateNodeValue: true}
+	} else {
+		return nil, errors.New(badArgsMessage)
+	}
+	return updateCommands, nil
+}
+
+func safelyRenameFile(from string, to string) {
+	if renameError := os.Rename(from, to); renameError != nil {
+		log.Debugf("Error renaming from %v to %v, attempting to copy contents", from, to)
+		log.Debug(renameError.Error())
+		// can't do this rename when running in docker to a file targeted in a mounted volume,
+		// so gracefully degrade to copying the entire contents.
+		if copyError := copyFileContents(from, to); copyError != nil {
+			log.Errorf("Failed copying from %v to %v", from, to)
+			log.Error(copyError.Error())
+		} else {
+			removeErr := os.Remove(from)
+			if removeErr != nil {
+				log.Errorf("failed removing original file: %s", from)
+			}
+		}
+	}
+}
+
+// thanks https://stackoverflow.com/questions/21060945/simple-way-to-copy-a-file-in-golang
+func copyFileContents(src, dst string) (err error) {
+	in, err := os.Open(src) // nolint gosec
+	if err != nil {
+		return err
+	}
+	defer safelyCloseFile(in)
+	out, err := os.Create(dst)
+	if err != nil {
+		return err
+	}
+	defer safelyCloseFile(out)
+	if _, err = io.Copy(out, in); err != nil {
+		return err
+	}
+	return out.Sync()
+}
+
+func safelyFlush(writer *bufio.Writer) {
+	if err := writer.Flush(); err != nil {
+		log.Error("Error flushing writer!")
+		log.Error(err.Error())
+	}
+
+}
+func safelyCloseFile(file *os.File) {
+	err := file.Close()
+	if err != nil {
+		log.Error("Error closing file!")
+		log.Error(err.Error())
+	}
+}
+
+type yamlDecoderFn func(*yaml.Decoder) error
+
+func readStream(filename string, yamlDecoder yamlDecoderFn) error {
+	if filename == "" {
+		return errors.New("Must provide filename")
+	}
+
+	var stream io.Reader
+	if filename == "-" {
+		stream = bufio.NewReader(os.Stdin)
+	} else {
+		file, err := os.Open(filename) // nolint gosec
+		if err != nil {
+			return err
+		}
+		defer safelyCloseFile(file)
+		stream = file
+	}
+	return yamlDecoder(yaml.NewDecoder(stream))
+}
+
+func readData(filename string, indexToRead int, parsedData interface{}) error {
+	return readStream(filename, func(decoder *yaml.Decoder) error {
+		for currentIndex := 0; currentIndex < indexToRead; currentIndex++ {
+			errorSkipping := decoder.Decode(parsedData)
+			if errorSkipping != nil {
+				return errors.Wrapf(errorSkipping, "Error processing document at index %v, %v", currentIndex, errorSkipping)
+			}
+		}
+		return decoder.Decode(parsedData)
+	})
+}

cmd/validate.go

@@ -0,0 +1,37 @@
+package cmd
+
+import (
+	errors "github.com/pkg/errors"
+	"github.com/spf13/cobra"
+)
+
+func createValidateCmd() *cobra.Command {
+	var cmdRead = &cobra.Command{
+		Use:     "validate [yaml_file]",
+		Aliases: []string{"v"},
+		Short:   "yq v sample.yaml",
+		Example: `
+yq v - # reads from stdin
+`,
+		RunE:          validateProperty,
+		SilenceUsage:  true,
+		SilenceErrors: true,
+	}
+	cmdRead.PersistentFlags().StringVarP(&docIndex, "doc", "d", "0", "process document index number (0 based, * for all documents)")
+	return cmdRead
+}
+
+func validateProperty(cmd *cobra.Command, args []string) error {
+	if len(args) < 1 {
+		return errors.New("Must provide filename")
+	}
+
+	var updateAll, docIndexInt, errorParsingDocIndex = parseDocumentIndex()
+	if errorParsingDocIndex != nil {
+		return errorParsingDocIndex
+	}
+
+	_, errorReadingStream := readYamlFile(args[0], "", updateAll, docIndexInt)
+
+	return errorReadingStream
+}

cmd/validate_test.go

@@ -0,0 +1,31 @@
+package cmd
+
+import (
+	"fmt"
+	"testing"
+
+	"github.com/mikefarah/yq/v3/test"
+)
+
+func TestValidateCmd(t *testing.T) {
+	cmd := getRootCommand()
+	result := test.RunCmd(cmd, "validate ../examples/sample.yaml b.c")
+	if result.Error != nil {
+		t.Error(result.Error)
+	}
+	test.AssertResult(t, "", result.Output)
+}
+
+func TestValidateBadDataCmd(t *testing.T) {
+	content := `[!Whatever]`
+	filename := test.WriteTempYamlFile(content)
+	defer test.RemoveTempYamlFile(filename)
+
+	cmd := getRootCommand()
+	result := test.RunCmd(cmd, fmt.Sprintf("validate %s", filename))
+	if result.Error == nil {
+		t.Error("Expected command to fail")
+	}
+	expectedOutput := `yaml: line 1: did not find expected ',' or ']'`
+	test.AssertResult(t, expectedOutput, result.Error.Error())
+}

cmd/version.go

@@ -1,4 +1,4 @@
-package main
+package cmd
 
 import (
 	"fmt"
@@ -11,12 +11,12 @@ var (
 	GitDescribe string
 
 	// Version is main version number that is being run at the moment.
-	Version = "3.0.0"
+	Version = "3.3.2"
 
 	// VersionPrerelease is a pre-release marker for the version. If this is "" (empty string)
 	// then it means that it is a final release. Otherwise, this is a pre-release
 	// such as "dev" (in development), "beta", "rc1", etc.
-	VersionPrerelease = "beta"
+	VersionPrerelease = ""
 )
 
 // ProductName is the name of the product

cmd/version_test.go

@@ -1,4 +1,4 @@
-package main
+package cmd
 
 import "testing"
 

cmd/write.go

@@ -0,0 +1,61 @@
+package cmd
+
+import (
+	"github.com/spf13/cobra"
+)
+
+func createWriteCmd() *cobra.Command {
+	var cmdWrite = &cobra.Command{
+		Use:     "write [yaml_file] [path_expression] [value]",
+		Aliases: []string{"w"},
+		Short:   "yq w [--inplace/-i] [--script/-s script_file] [--doc/-d index] sample.yaml 'b.e(name==fr*).value' newValue",
+		Example: `
+yq write things.yaml 'a.b.c' true
+yq write things.yaml 'a.*.c' true
+yq write things.yaml 'a.**' true
+yq write things.yaml 'a.(child.subchild==co*).c' true
+yq write things.yaml 'a.b.c' --tag '!!str' true # force 'true' to be interpreted as a string instead of bool
+yq write things.yaml 'a.b.c' --tag '!!float' 3
+yq write --inplace -- things.yaml 'a.b.c' '--cat' # need to use '--' to stop processing arguments as flags
+yq w -i things.yaml 'a.b.c' cat
+yq w -i -s update_script.yaml things.yaml
+yq w things.yaml 'a.b.d[+]' foo # appends a new node to the 'd' array
+yq w --doc 2 things.yaml 'a.b.d[+]' foo # updates the 3rd document of the yaml file
+      `,
+		Long: `Updates the yaml file w.r.t the given path and value.
+Outputs to STDOUT unless the inplace flag is used, in which case the file is updated instead.
+
+Append value to array adds the value to the end of array.
+
+Update Scripts:
+Note that you can give an update script to perform more sophisticated update. Update script
+format is list of update commands (update or delete) like so:
+---
+- command: update
+  path: b.c
+  value:
+    #great
+    things: frog # wow!
+- command: delete
+  path: b.d
+`,
+		RunE: writeProperty,
+	}
+	cmdWrite.PersistentFlags().BoolVarP(&writeInplace, "inplace", "i", false, "update the yaml file inplace")
+	cmdWrite.PersistentFlags().StringVarP(&writeScript, "script", "s", "", "yaml script for updating yaml")
+	cmdWrite.PersistentFlags().StringVarP(&sourceYamlFile, "from", "f", "", "yaml file for updating yaml (as-is)")
+	cmdWrite.PersistentFlags().StringVarP(&customTag, "tag", "t", "", "set yaml tag (e.g. !!int)")
+	cmdWrite.PersistentFlags().StringVarP(&docIndex, "doc", "d", "0", "process document index number (0 based, * for all documents)")
+	cmdWrite.PersistentFlags().StringVarP(&customStyle, "style", "", "", "formatting style of the value: single, double, folded, flow, literal, tagged")
+	cmdWrite.PersistentFlags().StringVarP(&anchorName, "anchorName", "", "", "anchor name")
+	cmdWrite.PersistentFlags().BoolVarP(&makeAlias, "makeAlias", "", false, "create an alias using the value as the anchor name")
+	return cmdWrite
+}
+
+func writeProperty(cmd *cobra.Command, args []string) error {
+	var updateCommands, updateCommandsError = readUpdateCommands(args, 3, "Must provide <filename> <path_to_update> <value>")
+	if updateCommandsError != nil {
+		return updateCommandsError
+	}
+	return updateDoc(args[0], updateCommands, cmd.OutOrStdout())
+}

cmd/write_test.go

@@ -0,0 +1,593 @@
+package cmd
+
+import (
+	"fmt"
+	"runtime"
+	"strings"
+	"testing"
+
+	"github.com/mikefarah/yq/v3/test"
+)
+
+func TestWriteCmd(t *testing.T) {
+	content := `b:
+  c: 3
+`
+	filename := test.WriteTempYamlFile(content)
+	defer test.RemoveTempYamlFile(filename)
+
+	cmd := getRootCommand()
+	result := test.RunCmd(cmd, fmt.Sprintf("write %s b.c 7", filename))
+	if result.Error != nil {
+		t.Error(result.Error)
+	}
+	expectedOutput := `b:
+  c: 7
+`
+	test.AssertResult(t, expectedOutput, result.Output)
+}
+
+func TestWriteWithTaggedStyleCmd(t *testing.T) {
+	content := `b:
+  c: dog
+`
+	filename := test.WriteTempYamlFile(content)
+	defer test.RemoveTempYamlFile(filename)
+
+	cmd := getRootCommand()
+	result := test.RunCmd(cmd, fmt.Sprintf("write %s b.c cat --tag=!!str --style=tagged", filename))
+	if result.Error != nil {
+		t.Error(result.Error)
+	}
+	expectedOutput := `b:
+  c: !!str cat
+`
+	test.AssertResult(t, expectedOutput, result.Output)
+}
+
+func TestWriteWithDoubleQuotedStyleCmd(t *testing.T) {
+	content := `b:
+  c: dog
+`
+	filename := test.WriteTempYamlFile(content)
+	defer test.RemoveTempYamlFile(filename)
+
+	cmd := getRootCommand()
+	result := test.RunCmd(cmd, fmt.Sprintf("write %s b.c cat --style=double", filename))
+	if result.Error != nil {
+		t.Error(result.Error)
+	}
+	expectedOutput := `b:
+  c: "cat"
+`
+	test.AssertResult(t, expectedOutput, result.Output)
+}
+
+func TestWriteUpdateStyleOnlyCmd(t *testing.T) {
+	content := `b:
+  c: dog
+  d: things
+`
+	filename := test.WriteTempYamlFile(content)
+	defer test.RemoveTempYamlFile(filename)
+
+	cmd := getRootCommand()
+	result := test.RunCmd(cmd, fmt.Sprintf("write %s b.* --style=single", filename))
+	if result.Error != nil {
+		t.Error(result.Error)
+	}
+	expectedOutput := `b:
+  c: 'dog'
+  d: 'things'
+`
+	test.AssertResult(t, expectedOutput, result.Output)
+}
+
+func TestWriteUpdateTagOnlyCmd(t *testing.T) {
+	content := `b:
+  c: true
+  d: false
+`
+	filename := test.WriteTempYamlFile(content)
+	defer test.RemoveTempYamlFile(filename)
+
+	cmd := getRootCommand()
+	result := test.RunCmd(cmd, fmt.Sprintf("write %s b.* --tag=!!str", filename))
+	if result.Error != nil {
+		t.Error(result.Error)
+	}
+	expectedOutput := `b:
+  c: "true"
+  d: "false"
+`
+	test.AssertResult(t, expectedOutput, result.Output)
+}
+
+func TestWriteWithSingleQuotedStyleCmd(t *testing.T) {
+	content := `b:
+  c: dog
+`
+	filename := test.WriteTempYamlFile(content)
+	defer test.RemoveTempYamlFile(filename)
+
+	cmd := getRootCommand()
+	result := test.RunCmd(cmd, fmt.Sprintf("write %s b.c cat --style=single", filename))
+	if result.Error != nil {
+		t.Error(result.Error)
+	}
+	expectedOutput := `b:
+  c: 'cat'
+`
+	test.AssertResult(t, expectedOutput, result.Output)
+}
+
+func TestWriteWithLiteralStyleCmd(t *testing.T) {
+	content := `b:
+  c: dog
+`
+	filename := test.WriteTempYamlFile(content)
+	defer test.RemoveTempYamlFile(filename)
+
+	cmd := getRootCommand()
+	result := test.RunCmd(cmd, fmt.Sprintf("write %s b.c cat --style=literal", filename))
+	if result.Error != nil {
+		t.Error(result.Error)
+	}
+	expectedOutput := `b:
+  c: |-
+    cat
+`
+	test.AssertResult(t, expectedOutput, result.Output)
+}
+
+func TestWriteWithFoldedStyleCmd(t *testing.T) {
+	content := `b:
+  c: dog
+`
+	filename := test.WriteTempYamlFile(content)
+	defer test.RemoveTempYamlFile(filename)
+
+	cmd := getRootCommand()
+	result := test.RunCmd(cmd, fmt.Sprintf("write %s b.c cat --style=folded", filename))
+	if result.Error != nil {
+		t.Error(result.Error)
+	}
+	expectedOutput := `b:
+  c: >-
+    cat
+`
+	test.AssertResult(t, expectedOutput, result.Output)
+}
+
+func TestWriteEmptyMultiDocCmd(t *testing.T) {
+	content := `# this is empty
+---
+`
+	filename := test.WriteTempYamlFile(content)
+	defer test.RemoveTempYamlFile(filename)
+
+	cmd := getRootCommand()
+	result := test.RunCmd(cmd, fmt.Sprintf("write %s c 7", filename))
+	if result.Error != nil {
+		t.Error(result.Error)
+	}
+	expectedOutput := `c: 7
+
+# this is empty
+`
+	test.AssertResult(t, expectedOutput, result.Output)
+}
+
+func TestWriteSurroundingEmptyMultiDocCmd(t *testing.T) {
+	content := `---
+# empty
+---
+cat: frog
+---
+
+# empty
+`
+	filename := test.WriteTempYamlFile(content)
+	defer test.RemoveTempYamlFile(filename)
+
+	cmd := getRootCommand()
+	result := test.RunCmd(cmd, fmt.Sprintf("write %s -d1 c 7", filename))
+	if result.Error != nil {
+		t.Error(result.Error)
+	}
+	expectedOutput := `
+
+# empty
+---
+cat: frog
+c: 7
+---
+
+
+# empty
+`
+	test.AssertResult(t, expectedOutput, result.Output)
+}
+
+func TestWriteFromFileCmd(t *testing.T) {
+	content := `b:
+  c: 3
+`
+	filename := test.WriteTempYamlFile(content)
+	defer test.RemoveTempYamlFile(filename)
+
+	source := `kittens: are cute # sure are!`
+	fromFilename := test.WriteTempYamlFile(source)
+	defer test.RemoveTempYamlFile(fromFilename)
+
+	cmd := getRootCommand()
+	result := test.RunCmd(cmd, fmt.Sprintf("write %s b.c -f %s", filename, fromFilename))
+	if result.Error != nil {
+		t.Error(result.Error)
+	}
+	expectedOutput := `b:
+  c:
+    kittens: are cute # sure are!
+`
+	test.AssertResult(t, expectedOutput, result.Output)
+}
+
+func TestWriteEmptyCmd(t *testing.T) {
+	content := ``
+	filename := test.WriteTempYamlFile(content)
+	defer test.RemoveTempYamlFile(filename)
+
+	cmd := getRootCommand()
+	result := test.RunCmd(cmd, fmt.Sprintf("write %s b.c 7", filename))
+	if result.Error != nil {
+		t.Error(result.Error)
+	}
+	expectedOutput := `b:
+  c: 7
+`
+	test.AssertResult(t, expectedOutput, result.Output)
+}
+
+func TestWriteAutoCreateCmd(t *testing.T) {
+	content := `applications:
+  - name: app
+    env:`
+	filename := test.WriteTempYamlFile(content)
+	defer test.RemoveTempYamlFile(filename)
+
+	cmd := getRootCommand()
+	result := test.RunCmd(cmd, fmt.Sprintf("write %s applications[0].env.hello world", filename))
+	if result.Error != nil {
+		t.Error(result.Error)
+	}
+	expectedOutput := `applications:
+  - name: app
+    env:
+      hello: world
+`
+	test.AssertResult(t, expectedOutput, result.Output)
+}
+
+func TestWriteCmdScript(t *testing.T) {
+	content := `b:
+  c: 3
+`
+	filename := test.WriteTempYamlFile(content)
+	defer test.RemoveTempYamlFile(filename)
+
+	updateScript := `- command: update
+  path: b.c
+  value: 7`
+	scriptFilename := test.WriteTempYamlFile(updateScript)
+	defer test.RemoveTempYamlFile(scriptFilename)
+
+	cmd := getRootCommand()
+	result := test.RunCmd(cmd, fmt.Sprintf("write --script %s %s", scriptFilename, filename))
+	if result.Error != nil {
+		t.Error(result.Error)
+	}
+	expectedOutput := `b:
+  c: 7
+`
+	test.AssertResult(t, expectedOutput, result.Output)
+}
+
+func TestWriteCmdEmptyScript(t *testing.T) {
+	content := `b:
+  c: 3
+`
+	filename := test.WriteTempYamlFile(content)
+	defer test.RemoveTempYamlFile(filename)
+
+	updateScript := ``
+	scriptFilename := test.WriteTempYamlFile(updateScript)
+	defer test.RemoveTempYamlFile(scriptFilename)
+
+	cmd := getRootCommand()
+	result := test.RunCmd(cmd, fmt.Sprintf("write --script %s %s", scriptFilename, filename))
+	if result.Error != nil {
+		t.Error(result.Error)
+	}
+	expectedOutput := `b:
+  c: 3
+`
+	test.AssertResult(t, expectedOutput, result.Output)
+}
+
+func TestWriteMultiCmd(t *testing.T) {
+	content := `b:
+  c: 3
+---
+apples: great
+`
+	filename := test.WriteTempYamlFile(content)
+	defer test.RemoveTempYamlFile(filename)
+
+	cmd := getRootCommand()
+	result := test.RunCmd(cmd, fmt.Sprintf("write %s -d 1 apples ok", filename))
+	if result.Error != nil {
+		t.Error(result.Error)
+	}
+	expectedOutput := `b:
+  c: 3
+---
+apples: ok
+`
+	test.AssertResult(t, expectedOutput, result.Output)
+}
+func TestWriteInvalidDocumentIndexCmd(t *testing.T) {
+	content := `b:
+  c: 3
+`
+	filename := test.WriteTempYamlFile(content)
+	defer test.RemoveTempYamlFile(filename)
+
+	cmd := getRootCommand()
+	result := test.RunCmd(cmd, fmt.Sprintf("write %s -df apples ok", filename))
+	if result.Error == nil {
+		t.Error("Expected command to fail due to invalid path")
+	}
+	expectedOutput := `Document index f is not a integer or *: strconv.ParseInt: parsing "f": invalid syntax`
+	test.AssertResult(t, expectedOutput, result.Error.Error())
+}
+
+func TestWriteBadDocumentIndexCmd(t *testing.T) {
+	content := `b:
+  c: 3
+`
+	filename := test.WriteTempYamlFile(content)
+	defer test.RemoveTempYamlFile(filename)
+
+	cmd := getRootCommand()
+	result := test.RunCmd(cmd, fmt.Sprintf("write %s -d 1 apples ok", filename))
+	if result.Error == nil {
+		t.Error("Expected command to fail due to invalid path")
+	}
+	expectedOutput := `asked to process document index 1 but there are only 1 document(s)`
+	test.AssertResult(t, expectedOutput, result.Error.Error())
+}
+func TestWriteMultiAllCmd(t *testing.T) {
+	content := `b:
+  c: 3
+---
+apples: great
+`
+	filename := test.WriteTempYamlFile(content)
+	defer test.RemoveTempYamlFile(filename)
+
+	cmd := getRootCommand()
+	result := test.RunCmd(cmd, fmt.Sprintf("write %s -d * apples ok", filename))
+	if result.Error != nil {
+		t.Error(result.Error)
+	}
+	expectedOutput := `b:
+  c: 3
+apples: ok
+---
+apples: ok`
+	test.AssertResult(t, expectedOutput, strings.Trim(result.Output, "\n "))
+}
+
+func TestWriteCmd_EmptyArray(t *testing.T) {
+	content := `b: 3`
+	filename := test.WriteTempYamlFile(content)
+	defer test.RemoveTempYamlFile(filename)
+
+	cmd := getRootCommand()
+	result := test.RunCmd(cmd, fmt.Sprintf("write %s a []", filename))
+	if result.Error != nil {
+		t.Error(result.Error)
+	}
+	expectedOutput := `b: 3
+a: []
+`
+	test.AssertResult(t, expectedOutput, result.Output)
+}
+
+func TestWriteCmd_Error(t *testing.T) {
+	cmd := getRootCommand()
+	result := test.RunCmd(cmd, "write")
+	if result.Error == nil {
+		t.Error("Expected command to fail due to missing arg")
+	}
+	expectedOutput := `Must provide <filename> <path_to_update> <value>`
+	test.AssertResult(t, expectedOutput, result.Error.Error())
+}
+
+func TestWriteCmd_ErrorUnreadableFile(t *testing.T) {
+	cmd := getRootCommand()
+	result := test.RunCmd(cmd, "write fake-unknown a.b 3")
+	if result.Error == nil {
+		t.Error("Expected command to fail due to unknown file")
+	}
+	var expectedOutput string
+	if runtime.GOOS == "windows" {
+		expectedOutput = `open fake-unknown: The system cannot find the file specified.`
+	} else {
+		expectedOutput = `open fake-unknown: no such file or directory`
+	}
+	test.AssertResult(t, expectedOutput, result.Error.Error())
+}
+
+func TestWriteCmd_Inplace(t *testing.T) {
+	content := `b:
+  c: 3
+`
+	filename := test.WriteTempYamlFile(content)
+	defer test.RemoveTempYamlFile(filename)
+
+	cmd := getRootCommand()
+	result := test.RunCmd(cmd, fmt.Sprintf("write -i %s b.c 7", filename))
+	if result.Error != nil {
+		t.Error(result.Error)
+	}
+	gotOutput := test.ReadTempYamlFile(filename)
+	expectedOutput := `b:
+  c: 7`
+	test.AssertResult(t, expectedOutput, strings.Trim(gotOutput, "\n "))
+}
+
+func TestWriteCmd_InplaceError(t *testing.T) {
+	content := `b: cat
+  c: 3
+`
+	filename := test.WriteTempYamlFile(content)
+	defer test.RemoveTempYamlFile(filename)
+
+	cmd := getRootCommand()
+	result := test.RunCmd(cmd, fmt.Sprintf("write -i %s b.c 7", filename))
+	if result.Error == nil {
+		t.Error("Expected Error to occur!")
+	}
+	gotOutput := test.ReadTempYamlFile(filename)
+	test.AssertResult(t, content, gotOutput)
+}
+
+func TestWriteCmd_Append(t *testing.T) {
+	content := `b:
+  - foo
+`
+	filename := test.WriteTempYamlFile(content)
+	defer test.RemoveTempYamlFile(filename)
+
+	cmd := getRootCommand()
+	result := test.RunCmd(cmd, fmt.Sprintf("write %s b[+] 7", filename))
+	if result.Error != nil {
+		t.Error(result.Error)
+	}
+	expectedOutput := `b:
+  - foo
+  - 7
+`
+	test.AssertResult(t, expectedOutput, result.Output)
+}
+
+func TestWriteCmd_AppendInline(t *testing.T) {
+	content := `b: [foo]`
+	filename := test.WriteTempYamlFile(content)
+	defer test.RemoveTempYamlFile(filename)
+
+	cmd := getRootCommand()
+	result := test.RunCmd(cmd, fmt.Sprintf("write %s b[+] 7", filename))
+	if result.Error != nil {
+		t.Error(result.Error)
+	}
+	expectedOutput := `b: [foo, 7]
+`
+	test.AssertResult(t, expectedOutput, result.Output)
+}
+
+func TestWriteCmd_AppendInlinePretty(t *testing.T) {
+	content := `b: [foo]`
+	filename := test.WriteTempYamlFile(content)
+	defer test.RemoveTempYamlFile(filename)
+
+	cmd := getRootCommand()
+	result := test.RunCmd(cmd, fmt.Sprintf("write %s -P b[+] 7", filename))
+	if result.Error != nil {
+		t.Error(result.Error)
+	}
+	expectedOutput := `b:
+  - foo
+  - 7
+`
+	test.AssertResult(t, expectedOutput, result.Output)
+}
+
+func TestWriteCmd_AppendEmptyArray(t *testing.T) {
+	content := `a: 2
+`
+	filename := test.WriteTempYamlFile(content)
+	defer test.RemoveTempYamlFile(filename)
+
+	cmd := getRootCommand()
+	result := test.RunCmd(cmd, fmt.Sprintf("write %s b[+] v", filename))
+	if result.Error != nil {
+		t.Error(result.Error)
+	}
+	expectedOutput := `a: 2
+b:
+  - v
+`
+	test.AssertResult(t, expectedOutput, result.Output)
+}
+
+func TestWriteCmd_SplatArray(t *testing.T) {
+	content := `b:
+- c: thing
+- c: another thing
+`
+	filename := test.WriteTempYamlFile(content)
+	defer test.RemoveTempYamlFile(filename)
+
+	cmd := getRootCommand()
+	result := test.RunCmd(cmd, fmt.Sprintf("write %s b[*].c new", filename))
+	if result.Error != nil {
+		t.Error(result.Error)
+	}
+	expectedOutput := `b:
+  - c: new
+  - c: new
+`
+	test.AssertResult(t, expectedOutput, result.Output)
+}
+
+func TestWriteCmd_SplatMap(t *testing.T) {
+	content := `b:
+  c: thing
+  d: another thing
+`
+	filename := test.WriteTempYamlFile(content)
+	defer test.RemoveTempYamlFile(filename)
+
+	cmd := getRootCommand()
+	result := test.RunCmd(cmd, fmt.Sprintf("write %s b.* new", filename))
+	if result.Error != nil {
+		t.Error(result.Error)
+	}
+	expectedOutput := `b:
+  c: new
+  d: new
+`
+	test.AssertResult(t, expectedOutput, result.Output)
+}
+
+func TestWriteCmd_SplatMapEmpty(t *testing.T) {
+	content := `b:
+  c: thing
+  d: another thing
+`
+	filename := test.WriteTempYamlFile(content)
+	defer test.RemoveTempYamlFile(filename)
+
+	cmd := getRootCommand()
+	result := test.RunCmd(cmd, fmt.Sprintf("write %s b.c.* new", filename))
+	if result.Error != nil {
+		t.Error(result.Error)
+	}
+	expectedOutput := `b:
+  c: {}
+  d: another thing
+`
+	test.AssertResult(t, expectedOutput, result.Output)
+}

commands/compare.md

@@ -0,0 +1,103 @@
+---
+description: Deeply compare two yaml documents
+---
+
+# Compare
+
+```bash
+yq compare <yaml_file_1> <yaml_file_2> <path_expression>
+```
+
+Compares the matching yaml nodes at path expression in the two yaml documents. See [path expression](../usage/path-expressions.md) for more details. Difference calculated line by line, and is printed out line by line where the first character of each line is either:
+
+*  `` a space, indicating no change at this line
+* `-` a minus ,indicating the line is not present in the second document \(it's removed\)
+* `+` a plus, indicating that the line is not present in the first document \(it's added\)
+
+If there are differences then `yq` will print out the differences and exit with code 1. If there are no differences, then nothing will be printed and the exit code will be 0.
+
+## Example data
+
+Given data1.yaml
+
+```yaml
+"apples": are nice
+somethingElse: cool # this is nice
+favouriteNumbers: [1,2,3]
+noDifference: it's the same
+```
+
+and data2.yaml
+
+```yaml
+apples: are nice
+somethingElse: cool # yeah i like it
+favouriteNumbers:
+- 1
+- 3
+- 4
+noDifference: it's the same
+```
+
+## Basic
+
+Basic will compare the yaml documents 'as-is'
+
+```yaml
+yq compare data1.yaml data2.yaml
+```
+
+yields
+
+```text
+-"apples": are nice
+-somethingElse: cool # this is nice
+-favouriteNumbers: [1, 2, 3]
++apples: are nice
++somethingElse: cool # yeah i like it
++favouriteNumbers:
++- 1
++- 3
++- 4
+ noDifference: it's the same
+```
+
+## Formatted
+
+Most of the time, it will make sense to [format](../usage/output-format.md#pretty-print) the documents before comparing:
+
+```text
+yq compare --prettyPrint data1.yaml data2.yml
+```
+
+yields
+
+```text
+ apples: are nice
+-somethingElse: cool # this is nice
++somethingElse: cool # yeah i like it
+ favouriteNumbers:
+ - 1
+-- 2
+ - 3
++- 4
+ noDifference: it's the same
+```
+
+## Using path expressions
+
+Use [path expressions](../usage/path-expressions.md) to compare subsets of yaml documents
+
+```text
+yq compare -P data1.yaml data2.yml favouriteNumbers
+```
+
+yields
+
+```text
+ - 1
+-- 2
+ - 3
++- 4
+```
+

commands/create.md

@@ -1,25 +1,32 @@
-```
+# Create
+
+```text
 yq n <path_expression> <new value>
 ```
 
-Yaml files can be created using the 'new' command. This works in the same way as the write command, but you don't pass in an existing Yaml file. Currently this does not support creating multiple documents in a single yaml file.
+This works in the same way as the write command, but you don't pass in an existing Yaml file. Currently this does not support creating multiple documents in a single yaml file.
 
-See docs for [path expression](path_expressions.md)
+See docs for [path expression](../usage/path-expressions.md) and [value parsing](../usage/value-parsing.md) for more details, including controlling quotes and tags.
 
 ## Creating a simple yaml file
+
 ```bash
 yq n b.c cat
 ```
+
 will output:
+
 ```yaml
 b:
   c: cat
 ```
 
 ## Creating using a create script
+
 Create scripts follow the same format as the update scripts.
 
-Given a script create_instructions.yaml of:
+Given a script create\_instructions.yaml of:
+
 ```yaml
 - command: update 
   path: b.c
@@ -27,12 +34,15 @@ Given a script create_instructions.yaml of:
     #great 
     things: frog # wow!
 ```
+
 then
 
 ```bash
 yq n -s create_instructions.yaml
 ```
+
 will output:
+
 ```yaml
 b:
   c:
@@ -44,4 +54,5 @@ You can also pipe the instructions in:
 
 ```bash
 cat create_instructions.yaml | yq n -s -
-```
+```
+

commands/delete.md

@@ -1,47 +1,60 @@
-```
+---
+description: Deletes all the matching nodes for the path expression in the given yaml input
+---
+
+# Delete
+
+```text
 yq delete <yaml_file|-> <path_expression>
 ```
 
-The delete command will delete all the matching nodes for the path expression in the given yaml input.
-
-See docs for [path expression](path_expressions.md) for more details.
-
+See docs for [path expression](../usage/path-expressions.md) for more details.
 
 ## Deleting from a simple document
+
 Given a sample.yaml file of:
+
 ```yaml
 b:
   c: 2
   apples: green
 ```
+
 then
+
 ```bash
 yq d sample.yaml b.c
 ```
+
 will output
+
 ```yaml
 b:
   apples: green
 ```
 
 ## From STDIN
-Use "-" (without quotes) in-place of a file name if you wish to pipe in input from STDIN.
+
+Use "-" \(without quotes\) in-place of a file name if you wish to pipe in input from STDIN.
 
 ```bash
 cat sample.yaml | yq d - b.c
 ```
 
 ## Deleting in-place
+
 ```bash
 yq d -i sample.yaml b.c
 ```
-will update the sample.yaml file so that the 'c' node is deleted
 
+will update the sample.yaml file so that the 'c' node is deleted
 
 ## Multiple Documents
 
 ### Delete from single document
+
 Given a sample.yaml file of:
+
 ```yaml
 something: else
 field: leaveMe
@@ -50,11 +63,15 @@ b:
   c: 2
 field: deleteMe
 ```
+
 then
+
 ```bash
 yq w -d1 sample.yaml field
 ```
+
 will output:
+
 ```yaml
 something: else
 field: leaveMe
@@ -64,7 +81,9 @@ b:
 ```
 
 ### Delete from all documents
+
 Given a sample.yaml file of:
+
 ```yaml
 something: else
 field: deleteMe
@@ -73,14 +92,19 @@ b:
   c: 2
 field: deleteMeToo
 ```
+
 then
+
 ```bash
 yq w -d'*' sample.yaml field
 ```
+
 will output:
+
 ```yaml
 something: else
 ---
 b:
   c: 2
 ```
+

commands/merge.md

@@ -1,28 +1,40 @@
-Yaml files can be merged using the 'merge' command. Each additional file merged with the first file will
-set values for any key not existing already or where the key has no value.
+---
+description: Merge multiple yaml files into a one
+---
 
-```
-yq m <yaml_file> <path>...
-```
+# Merge
 
+Yaml files can be merged using the 'merge' command. Each additional file merged with the first file will set values for any key not existing already or where the key has no value.
+
+```text
+yq m <yaml_file> <yaml_file2> <yaml_file3>...
+```
 
 ## Merge example
+
 Given a data1.yaml file of:
+
 ```yaml
 a: simple
 b: [1, 2]
 ```
+
 and data2.yaml file of:
+
 ```yaml
 a: other
 c:
   test: 1
 ```
+
 then
+
 ```bash
-yq m data1.yaml data2.yaml
+yq merge data1.yaml data2.yaml
 ```
+
 will output:
+
 ```yaml
 a: simple
 b: [1, 2]
@@ -31,73 +43,62 @@ c:
 ```
 
 ## Updating files in-place
+
 ```bash
 yq m -i data1.yaml data2.yaml
 ```
+
 will update the data1.yaml file with the merged result.
 
 ## Overwrite values
+
 Given a data1.yaml file of:
+
 ```yaml
 a: simple
 b: [1, 2]
+d: left alone
 ```
+
 and data2.yaml file of:
+
 ```yaml
 a: other
+b: [3, 4]
 c:
   test: 1
 ```
+
 then
+
 ```bash
 yq m -x data1.yaml data2.yaml
 ```
+
 will output:
+
 ```yaml
 a: other
-b: [1, 2]
+b: [3, 4]
 c:
   test: 1
+d: left alone
 ```
 
-### Overwrite values with arrays
-Given a data1.yaml file of:
-```yaml
-a: simple
-b: [1, 2]
-```
-and data3.yaml file of:
-```yaml
-b: [3, 4]
-c:
-  test: 2
-  other: true
-d: false
-```
-then
-```bash
-yq m -x data1.yaml data3.yaml
-```
-will output:
-```yaml
-a: simple
-b: [3, 4]
-c:
-  test: 2
-  other: true
-d: false
-```
-
-Notice that 'b' does not result in the merging of the values within an array. 
+Notice that 'b' does not result in the merging of the values within an array.
 
 ## Append values with arrays
+
 Given a data1.yaml file of:
+
 ```yaml
 a: simple
 b: [1, 2]
 d: hi
 ```
-and data3.yaml file of:
+
+and data2.yaml file of:
+
 ```yaml
 a: something
 b: [3, 4]
@@ -105,11 +106,15 @@ c:
   test: 2
   other: true
 ```
+
 then
+
 ```bash
-yq m -a data1.yaml data3.yaml
+yq m -a data1.yaml data2.yaml
 ```
+
 will output:
+
 ```yaml
 a: simple
 b: [1, 2, 3, 4]
@@ -119,28 +124,70 @@ c:
 d: hi
 ```
 
-Note that the 'b' array has concatenated the values from the second data file. Also note that other map keys are not overridden (field a).
+Note that the 'b' array has concatenated the values from the second data file. Also note that other map keys are not overridden \(field a\).
+
+## Auto-create
+
+By default, `yq` will automatically create any missing entries in the target yaml file. This can be turned off so that only matching paths are merged in. When turned off - you will most likely want to use the [override flag](merge.md#overwrite-values).
+
+Given a data1.yml file of:
+
+```yaml
+a: thing
+b: something else
+```
+
+and data2.yml file of:
+
+```yaml
+b: new value
+d: not in original
+```
+
+Then
+
+```yaml
+yq m --overwrite --autocreate=false data1.yml data2.yml
+```
+
+will yield
+
+```yaml
+a: thing
+b: new value
+```
+
+
 
 ## Multiple Documents
+
 ### Merge into single document
+
 Currently yq only has multi-document support for the _first_ document being merged into. The remaining yaml files will have their first document selected.
 
 Given a data1.yaml file of:
+
 ```yaml
 something: else
 ---
 a: simple
 b: cat
 ```
+
 and data3.yaml file of:
+
 ```yaml
 b: dog
 ```
+
 then
+
 ```bash
 yq m -x -d1 data1.yaml data3.yaml
 ```
+
 will output:
+
 ```yaml
 something: else
 ---
@@ -149,28 +196,37 @@ b: dog
 ```
 
 ### Merge into all documents
+
 Currently yq only has multi-document support for the _first_ document being merged into. The remaining yaml files will have their first document selected.
 
 Given a data1.yaml file of:
+
 ```yaml
 something: else
 ---
 a: simple
 b: cat
 ```
+
 and data3.yaml file of:
+
 ```yaml
 b: dog
 ```
+
 then
+
 ```bash
 yq m -x -d'*' data1.yaml data3.yaml
 ```
+
 will output:
+
 ```yaml
 b: dog
 something: else
 ---
 a: simple
 b: dog
-```
+```
+

commands/prefix.md

@@ -1,22 +1,34 @@
-```
+---
+description: >-
+  Prefixes a yaml document with the given path expression. The complete yaml
+  content will be nested inside the new prefix path.
+---
+
+# Prefix
+
+```text
 yq p <yaml_file> <path>
 ```
 
-Prefixes a yaml document with the given path expression. The complete yaml content will be nested inside the new prefix path.
-
-See docs for [path expression](path_expressions.md) for more details.
+See docs for [path expression](../usage/path-expressions.md) for more details.
 
 ## Prefix a document
+
 Given a data1.yaml file of:
+
 ```yaml
 a:
   b: [1, 2]
 ```
+
 then
+
 ```bash
 yq p data1.yaml c.d
 ```
+
 will output:
+
 ```yaml
 c:
   d:
@@ -25,25 +37,34 @@ c:
 ```
 
 ## Updating files in-place
+
 ```bash
 yq p -i data1.yaml c
 ```
+
 will update the data1.yaml file so that the path 'c' prefixes the document.
 
 ## Multiple Documents
+
 ### Prefix a single document
+
 Given a data1.yaml file of:
+
 ```yaml
 something: else
 ---
 a: simple
 b: cat
 ```
+
 then
+
 ```bash
 yq p -d1 data1.yaml c
 ```
+
 will output:
+
 ```yaml
 something: else
 ---
@@ -53,18 +74,24 @@ c:
 ```
 
 ### Prefix all documents
+
 Given a data1.yaml file of:
+
 ```yaml
 something: else
 ---
 a: simple
 b: cat
 ```
+
 then
+
 ```bash
 yq p -d'*' data1.yaml c
 ```
+
 will output:
+
 ```yaml
 c:
   something: else
@@ -73,3 +100,4 @@ c:
   a: simple
   b: cat
 ```
+

commands/read.md

@@ -0,0 +1,326 @@
+---
+description: Returns matching nodes/values of a path expression for a given yaml document
+---
+
+# Read
+
+```text
+yq r <yaml_file|json_file> <path_expression>
+```
+
+Returns the matching nodes of the path expression for the given yaml file \(or STDIN\).
+
+See docs for [path expression](../usage/path-expressions.md) for more details.
+
+## Basic
+
+Given a sample.yaml file of:
+
+```yaml
+b:
+  c: 2
+```
+
+then
+
+```bash
+yq r sample.yaml b.c
+```
+
+will output the value of '2'.
+
+## From Stdin
+
+Given a sample.yaml file of:
+
+```bash
+cat sample.yaml | yq r - b.c
+```
+
+will output the value of '2'.
+
+## Default values
+
+Using the `--defaultValue/-D` flag you can specify a default value to be printed when no matching nodes are found for an expression
+
+```text
+yq r sample.yaml --defaultValue frog path.not.there
+```
+
+will yield \(assuming `path.not.there` does not match any nodes\):
+
+```text
+frog
+```
+
+## Printing matching paths
+
+By default, yq will only print the value of the path expression for the yaml document. By specifying `--printMode` or `-p` you can print the matching paths.
+
+```yaml
+a:
+  thing_a: 
+    animal: cat
+  other: 
+    animal: frog
+  thing_b: 
+    vehicle: car
+```
+
+### Path Only
+
+```bash
+yq r --printMode p "a.thing*.*"
+```
+
+will print
+
+```text
+a.thing_a.animal
+a.thing_b.vehicle
+```
+
+### Path and Value
+
+```bash
+yq r --printMode pv "a.thing*.*"
+```
+
+will print
+
+```text
+a.thing_a.animal: cat
+a.thing_b.vehicle: car
+```
+
+## Collect results into an array
+
+By default, results are printed out line by line as independent matches. This is handy for both readability as well as piping into tools like `xargs`. However, if you would like to collect the matching results into an array then use the `--collect/-C` flag. This is particularly useful with the `length` flag described below.
+
+Given:
+
+```yaml
+a:
+  thing_a: 
+    animal: cat
+  other: 
+    animal: frog
+  thing_b: 
+    vehicle: car
+```
+
+```text
+yq r sample.yaml --collect a.*.animal
+```
+
+will print
+
+```text
+- cat
+- frog
+```
+
+## Printing length of the results
+
+Use the `--length/-L` flag to print the length of results. For arrays this will be the number of items, objects the number of entries and scalars the length of the value.
+
+Given
+
+```text
+animals:
+  - cats
+  - dog
+  - cheetah
+```
+
+```text
+yq r sample.yml --length animals
+```
+
+will print 
+
+```text
+3
+```
+
+### Length of filtered results
+
+By default, filtered results are printed _independently_ so you will get the length of each result printed on a separate line:
+
+```text
+yq r sample.yaml --length --printMode pv 'animals.(.==c*)'
+```
+
+```text
+animals.[0]: 4
+animals.[2]: 7
+```
+
+However, you'll often want to know the count of the filtered results - use the `--collect` flag to collect the results in the array. The length will then return the size of the array. 
+
+```text
+yq r sample.yaml --length --collect 'animals.(.==c*)' 
+```
+
+```text
+2
+```
+
+## Anchors and Aliases
+
+The read command will print out the anchors of a document and can also traverse them.
+
+Lets take a look at a simple example file:
+
+```yaml
+foo: &foo
+  a: 1
+
+foobar: *foo
+```
+
+### Printing anchors
+
+```bash
+yq r sample.yml foo
+```
+
+will print out
+
+```yaml
+&foo
+a: 1
+```
+
+Similarly,
+
+```text
+yq r sample.yml foobar
+```
+
+prints out
+
+```yaml
+*foo
+```
+
+### Traversing anchors
+
+To traverse an anchor, we need to either explicitly reference merged in values:
+
+```text
+yq r sample.yml foobar.a
+```
+
+to get
+
+```text
+1
+```
+
+or we can use deep splat to get all the values
+
+```bash
+yq r sample.yml -p pv "foobar.**"
+```
+
+prints
+
+```yaml
+foobar.a: 1
+```
+
+The same methods work for the `<<: [*blah, *thing]`anchors.
+
+### Exploding Anchors
+
+By default anchors are not exploded \(or expanded/de-referenced\) for viewing, and the yaml is shown as-is. Use the `--explodeAnchors/-X` flag to show the anchor values.
+
+Given sample.yml:
+
+```yaml
+foo: &foo
+  a: original
+  thing: coolasdf
+  thirsty: yep
+
+bar: &bar
+  b: 2
+  thing: coconut
+  c: oldbar
+
+foobarList:
+  <<: [*foo,*bar]
+  c: newbar
+```
+
+Then
+
+```text
+yq r -X sample.yml foobarList
+```
+
+yields
+
+```text
+c: newbar
+b: 2
+thing: coconut
+a: original
+thirsty: yep
+```
+
+Note that yq processes the merge anchor list in reverse order, to ensure that the last items in the list override the preceding.
+
+## Multiple Documents
+
+### Reading from a single document
+
+Given a sample.yaml file of:
+
+```yaml
+something: else
+---
+b:
+  c: 2
+```
+
+then
+
+```bash
+yq r -d1 sample.yaml b.c
+```
+
+will output the value of '2'.
+
+### Read from all documents
+
+Reading all documents will return the result as an array. This can be converted to json using the '-j' flag if desired.
+
+Given a sample.yaml file of:
+
+```yaml
+name: Fred
+age: 22
+---
+name: Stella
+age: 23
+---
+name: Android
+age: 232
+```
+
+then
+
+```bash
+yq r -d'*' sample.yaml name
+```
+
+will output:
+
+```text
+Fred
+Stella
+Android
+```
+

commands/shell-completion.md

@@ -0,0 +1,51 @@
+---
+description: >-
+  Generate a shell completion file for supported shells
+  (bash/fish/zsh/powershell)
+---
+
+# Shell Completion
+
+```bash
+yq shell-completion --variation=zsh
+```
+
+Prints to StdOut a shell completion script for zsh shell.
+
+### Bash \(default\)
+
+```bash
+yq shell-completion
+```
+
+To configure your bash shell to load completions for each session add to your bashrc
+
+```text
+# ~/.bashrc or ~/.profile
+. <(yq shell-completion)
+```
+
+### zsh
+
+```bash
+yq shell-completion --variation=zsh
+```
+
+The generated completion script should be put somewhere in your $fpath named \_yq
+
+### fish
+
+```bash
+yq shell-completion --variation=fish
+```
+
+Save the output to a '.fish' file and add it to your completions directory.
+
+### PowerShell
+
+```bash
+yq shell-completion --variation=powershell
+```
+
+Users need PowerShell version 5.0 or above, which comes with Windows 10 and can be downloaded separately for Windows 7 or 8.1. They can then write the completions to a file and source this file from their PowerShell profile, which is referenced by the $Profile environment variable.
+

commands/validate.md

@@ -0,0 +1,54 @@
+---
+description: Validate a given yaml file
+---
+
+# Validate
+
+```text
+yq v <yaml_file|->
+```
+
+Validates the given yaml file, does nothing if its valid, otherwise it will print errors to Stderr and exit with a non 0 exit code. This works like the [read command](read.md) - but does not take a path expression and does not print the yaml if it is valid.
+
+## Basic - valid
+
+```text
+yq v valid.yaml
+```
+
+This will not print anything, and finish with a successful \(0\) exit code.
+
+## Basic - invalid, from stdin
+
+```text
+echo '[1234' | yq v -
+```
+
+This will print the parsing error to stderr:
+
+```bash
+10:43:09 main [ERRO] yaml: line 1: did not find expected ',' or ']'
+```
+
+And return a error exit code \(1\)
+
+## Multiple documents
+
+Like other commands, by default the validate command will only run against the first document in the yaml file. Note that when running against other specific document indexes, _all previous documents will also be validated._
+
+### Validating a single document
+
+```bash
+yq v -d1 multidoc.yml
+```
+
+This will validate both document 0 and document 1 \(but not document 2\)
+
+### Validating all documents
+
+```bash
+yq v -d'*' multidoc.yml
+```
+
+This will validate all documents in the yaml file. Note that \* is quoted to avoid the CLI from processing the wildcard.
+

commands/write-update.md

@@ -0,0 +1,285 @@
+---
+description: >-
+  Updates all the matching nodes of path expression in a yaml file to the
+  supplied value.
+---
+
+# Write
+
+```bash
+yq w <yaml_file> <path_expression> <new value>
+```
+
+See docs for [path expression](../usage/path-expressions.md) and [value parsing](../usage/value-parsing.md) for more details, including controlling quotes and tags.
+
+## Basic
+
+Given a sample.yaml file of:
+
+```yaml
+b:
+  c: 2
+```
+
+then
+
+```bash
+yq w sample.yaml b.c cat
+```
+
+will output:
+
+```yaml
+b:
+  c: cat
+```
+
+### Updating files in-place
+
+```bash
+yq w -i sample.yaml b.c cat
+```
+
+will update the sample.yaml file so that the value of 'c' is cat.
+
+## From STDIN
+
+```bash
+cat sample.yaml | yq w - b.c blah
+```
+
+## Adding new fields
+
+Any missing fields in the path will be created on the fly.
+
+Given a sample.yaml file of:
+
+```yaml
+b:
+  c: 2
+```
+
+then
+
+```bash
+yq w sample.yaml b.d[+] "new thing"
+```
+
+will output:
+
+```yaml
+b:
+  c: cat
+  d:
+    - new thing
+```
+
+## Appending value to an array field
+
+Given a sample.yaml file of:
+
+```yaml
+b:
+  c: 2
+  d:
+    - new thing
+    - foo thing
+```
+
+then
+
+```bash
+yq w sample.yaml "b.d[+]" "bar thing"
+```
+
+will output:
+
+```yaml
+b:
+  c: cat
+  d:
+    - new thing
+    - foo thing
+    - bar thing
+```
+
+Note that the path is in quotes to avoid the square brackets being interpreted by your shell.
+
+## Multiple Documents
+
+### Update a single document
+
+Given a sample.yaml file of:
+
+```yaml
+something: else
+---
+b:
+  c: 2
+```
+
+then
+
+```bash
+yq w -d1 sample.yaml b.c 5
+```
+
+will output:
+
+```yaml
+something: else
+---
+b:
+  c: 5
+```
+
+### Update all documents
+
+Given a sample.yaml file of:
+
+```yaml
+something: else
+---
+b:
+  c: 2
+```
+
+then
+
+```bash
+yq w -d'*' sample.yaml b.c 5
+```
+
+will output:
+
+```yaml
+something: else
+b:
+  c: 5
+---
+b:
+  c: 5
+```
+
+## Writing Anchors
+
+The `---anchorName` flag can be used to set the anchor name of a node
+
+Given a sample document of:
+
+```yaml
+commonStuff:
+    flavour: vanilla
+```
+
+Then:
+
+```bash
+yq write sample.yaml commonStuff --anchorName=commonBits
+```
+
+Will yield
+
+```yaml
+commonStuff: &commonBits
+    flavour: vanilla
+```
+
+## Writing Aliases
+
+The `--makeAlias` flag can create \(or update\) a node to be an alias to an anchor.
+
+Given a sample file of:
+
+```yaml
+commonStuff: &commonBits
+    flavour: vanilla
+```
+
+Then
+
+```bash
+yq write sample.yaml --makeAnchor foo commonBits
+```
+
+Will yield:
+
+```yaml
+commonStuff: &commonBits
+    flavour: vanilla
+foo: *commonBits
+```
+
+## Updating only styles/tags without affecting values
+
+You can use the write command to update the quoting style of nodes, or their tags, without re-specifying the values. This is done by omitting the value argument:
+
+Given a sample document:
+
+```yaml
+a:
+  c: things
+  d: other things
+```
+
+Then
+
+```bash
+yq write sample.yaml --style=single a.*
+```
+
+Will yield:
+
+```yaml
+a:
+  c: 'things'
+  d: 'other things'
+```
+
+## Using a script file to update
+
+Given a sample.yaml file of:
+
+```yaml
+b:
+  d: be gone
+  c: 2
+  e:
+    - name: Billy Bob # comment over here
+```
+
+and a script update\_instructions.yaml of:
+
+```yaml
+- command: update 
+  path: b.c
+  value:
+    #great 
+    things: frog # wow!
+- command: delete
+  path: b.d
+```
+
+then
+
+```bash
+yq w -s update_instructions.yaml sample.yaml
+```
+
+will output:
+
+```yaml
+b:
+  c:
+    #great
+    things: frog # wow!
+  e:
+  - name: Billy Bob # comment over here
+```
+
+And, of course, you can pipe the instructions in using '-':
+
+```bash
+cat update_instructions.yaml | yq w -s - sample.yaml
+```
+

debian/changelog

@@ -1,3 +1,41 @@
+yq (3.3-0) focal; urgency=medium
+
+  * You can control string styles (quotes) using the new --style flag
+  * String values now always have quotes when outputting to json
+  * Negative array indices now traverse the array backwards
+  * Added a --stripComments flag to print yaml without any comments
+  * Bumped go to version 1.14
+
+ -- Roberto Mier Escandon <rmescandon@gmail.com>  Thu, 30 Apr 2020 20:45:44 +0200
+
+yq (3.1-2) eoan; urgency=medium
+
+  * Bug fix: yq 3 was removing empty inline-style objects and arrays (#355)
+  * Bug fix: Merge option returned different output when switching order of 
+    merging files(#347)
+  * Bug fix: Add new object to existing array object was failing in 3.1.1 (#361)
+  * Bug fix: yq 3 empty keys did not allow merging of values (#356)
+  * Bug fix: keys quoted during merge (#363)
+  * Bug fix: Correct length with wc -l (#362)
+  * Bug fix: Write to empty document removed path (#359)
+
+ -- Roberto Mier Escandon <rmescandon@gmail.com>  Mon, 24 Feb 2020 20:31:58 +0100
+
+yq (3.1-1) eoan; urgency=medium
+
+  * Keeps yaml comments and formatting, can specify yaml tags when updating.
+  * Handles anchors
+  * Can print out matching paths and values when splatting
+  * JSON output works for all commands
+  * Yaml files with multiple documents are printed out as one JSON 
+    document per line.
+  * Deep splat (**) to match arbitrary paths
+  * Update scripts file format has changed to be more powerful
+  * Reading and splatting, matching results are printed once per line
+  * Bugfixing
+
+ -- Roberto Mier Escandon <rmescandon@gmail.com>  Tue, 11 Feb 2020 22:18:24 +0100
+
 yq (2.2-1) bionic; urgency=medium
 
   * Added Windows support for the "--inplace" command flag

debian/compat

@@ -1 +1 @@
-9
+10

debian/control

@@ -1,22 +1,22 @@
 Source: yq
 Section: devel
-Priority: extra
+Priority: optional
 Maintainer: Roberto Mier Escandón <rmescandon@gmail.com>
-Build-Depends: debhelper (>= 9),
-               dh-golang,
-               golang-1.10-go,
+Build-Depends: debhelper (>=10),
+               dh-golang (>=1.34),
+               golang-1.13,
                rsync
-Standards-Version: 3.9.6
+Standards-Version: 4.1.4
 Homepage: https://github.com/mikefarah/yq.git
 Vcs-Browser: https://github.com/mikefarah/yq.git
 Vcs-Git: https://github.com/mikefarah/yq.git
+XS-Go-Import-Path: github.com/mikefarah/yq
+XSBC-Original-Maintainer: Roberto Mier Escandón <rmescandon@gmail.com>
 
 Package: yq
 Architecture: any
-Built-Using: ${misc:Built-Using}
-Depends: ${shlibs:Depends},
-         ${misc:Depends}
-Description:
- a lightweight and portable command-line YAML processor
+Depends: ${shlibs:Depends}, ${misc:Depends}
+Description: lightweight and portable command-line YAML processor
  .
- The aim of the project is to be the [jq](https://github.com/stedolan/jq) or sed of yaml files.
+ The aim of the project is to be the 
+ [jq](https://github.com/stedolan/jq) or sed of yaml files.

debian/copyright

@@ -3,5 +3,22 @@ Upstream-Name: yq
 Source: https://github.com/mikefarah/yq.git
 
 Files: *
-Copyright: 2017 Mike Farah Ltd. All rights reserved
-License: Proprietary
+Copyright: 2017 Mike Farah
+License: Expat
+    Permission is hereby granted, free of charge, to any person obtaining a copy
+    of this software and associated documentation files (the "Software"), to deal
+    in the Software without restriction, including without limitation the rights
+    to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+    copies of the Software, and to permit persons to whom the Software is
+    furnished to do so, subject to the following conditions:
+    .
+    The above copyright notice and this permission notice shall be included in all
+    copies or substantial portions of the Software.
+    .
+    THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+    IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+    FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+    AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+    LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+    OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+    SOFTWARE.

debian/rules

@@ -14,46 +14,44 @@
 # You should have received a copy of the GNU General Public License
 # along with this program.  If not, see <http://www.gnu.org/licenses/>.
 
-
 PROJECT := yq
 OWNER := mikefarah
 REPO := github.com
-GOVERSION := 1.10
+GOVERSION := 1.13
+
 export DH_OPTIONS
 export DH_GOPKG := ${REPO}/${OWNER}/${PROJECT}
 export GOROOT := /usr/lib/go-${GOVERSION}
 export GOPATH := ${CURDIR}/_build
 export GOBIN := ${GOPATH}/bin
 export PATH := ${GOROOT}/bin:${GOBIN}:${PATH}
-BLDPATH := $(shell dpkg-architecture -qDEB_BUILD_GNU_TYPE)
-SRCDIR := ${CURDIR}/_build/src/${DH_GOPKG}
+export GOCACHE := /tmp/gocache
+export GOFLAGS := -mod=vendor
+
+SRCDIR := ${GOPATH}/src/${DH_GOPKG}
 DESTDIR := ${CURDIR}/debian/${PROJECT}
 BINDIR := /usr/bin
 ASSETSDIR := /usr/share/${PROJECT}
 
 %:
-	dh $@ --buildsystem=golang --with=golang
+	dh $@ --builddirectory=${GOPATH} --buildsystem=golang
 
 override_dh_auto_build:
 	mkdir -p ${SRCDIR}
 	mkdir -p ${GOBIN}
 	# copy project to local srcdir to build from there
-	rsync -avz --progress --exclude=obj-${BLDPATH} --exclude=debian . $(SRCDIR)
+	rsync -avz --progress --exclude=_build --exclude=debian --exclude=tmp. --exclude=go.mod --exclude=docs . $(SRCDIR)
 	# build go code
-	(cd ${SRCDIR} && go install ./...)
-
+	(cd ${SRCDIR} && go install -buildmode=pie ./...)
+	
 override_dh_auto_test:
 	(cd ${SRCDIR} && go test -v ./...)
 
 override_dh_auto_install:
-	mkdir -p ${DESTDIR}/${BINDIR}
-	mkdir -p ${DESTDIR}/${ASSETSDIR}
-	cp ${CURDIR}/_build/bin/yq ${DESTDIR}/${BINDIR}
-	cp -rf ${SRCDIR}/LICENSE ${DESTDIR}/${ASSETSDIR}
-	cp -rf ${SRCDIR}/README.md ${DESTDIR}/${PLUGINSDIR}
+	cp ${GOBIN}/yq ${DESTDIR}/${BINDIR}
+	cp -f ${SRCDIR}/LICENSE ${DESTDIR}/${ASSETSDIR}
 	chmod a+x ${DESTDIR}/${BINDIR}/yq
 
 override_dh_auto_clean:
 	dh_clean
-	rm -rf ${CURDIR}/obj-${BLDPATH}
 	rm -rf ${CURDIR}/_build

debian/yq.dirs

@@ -0,0 +1,3 @@
+usr/bin
+usr/share/yq
+usr/share/man/man1

docs/404.html

@@ -32,7 +32,7 @@
         <meta name="lang:search.tokenizer" content="[\s\-]+">
       
       <link rel="shortcut icon" href="/assets/images/favicon.png">
-      <meta name="generator" content="mkdocs-1.0.4, mkdocs-material-4.2.0">
+      <meta name="generator" content="mkdocs-1.0.4, mkdocs-material-4.6.0">
     
     
       
@@ -40,17 +40,17 @@
       
     
     
-      <link rel="stylesheet" href="/assets/stylesheets/application.750b69bd.css">
+      <link rel="stylesheet" href="/assets/stylesheets/application.1b62728e.css">
       
       
     
     
-      <script src="/assets/javascripts/modernizr.74668098.js"></script>
+      <script src="/assets/javascripts/modernizr.268332fc.js"></script>
     
     
       
         <link href="https://fonts.gstatic.com" rel="preconnect" crossorigin>
-        <link rel="stylesheet" href="https://fonts.googleapis.com/css?family=Roboto:300,400,400i,700|Roboto+Mono">
+        <link rel="stylesheet" href="https://fonts.googleapis.com/css?family=Roboto:300,400,400i,700%7CRoboto+Mono&display=fallback">
         <style>body,input{font-family:"Roboto","Helvetica Neue",Helvetica,Arial,sans-serif}code,kbd,pre{font-family:"Roboto Mono","Courier New",Courier,monospace}</style>
       
     
@@ -69,24 +69,7 @@
       <defs>
         
         
-          <svg xmlns="http://www.w3.org/2000/svg" width="416" height="448"
-    viewBox="0 0 416 448" id="__github">
-  <path fill="currentColor" d="M160 304q0 10-3.125 20.5t-10.75 19-18.125
-        8.5-18.125-8.5-10.75-19-3.125-20.5 3.125-20.5 10.75-19 18.125-8.5
-        18.125 8.5 10.75 19 3.125 20.5zM320 304q0 10-3.125 20.5t-10.75
-        19-18.125 8.5-18.125-8.5-10.75-19-3.125-20.5 3.125-20.5 10.75-19
-        18.125-8.5 18.125 8.5 10.75 19 3.125 20.5zM360
-        304q0-30-17.25-51t-46.75-21q-10.25 0-48.75 5.25-17.75 2.75-39.25
-        2.75t-39.25-2.75q-38-5.25-48.75-5.25-29.5 0-46.75 21t-17.25 51q0 22 8
-        38.375t20.25 25.75 30.5 15 35 7.375 37.25 1.75h42q20.5 0
-        37.25-1.75t35-7.375 30.5-15 20.25-25.75 8-38.375zM416 260q0 51.75-15.25
-        82.75-9.5 19.25-26.375 33.25t-35.25 21.5-42.5 11.875-42.875 5.5-41.75
-        1.125q-19.5 0-35.5-0.75t-36.875-3.125-38.125-7.5-34.25-12.875-30.25-20.25-21.5-28.75q-15.5-30.75-15.5-82.75
-        0-59.25 34-99-6.75-20.5-6.75-42.5 0-29 12.75-54.5 27 0 47.5 9.875t47.25
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-        46.75-30.25t47.25-9.75q12.75 25.5 12.75 54.5 0 21.75-6.75 42 34 40 34
-        99.5z" />
-</svg>
+          <svg xmlns="http://www.w3.org/2000/svg" width="416" height="448" viewBox="0 0 416 448" id="__github"><path fill="currentColor" d="M160 304q0 10-3.125 20.5t-10.75 19T128 352t-18.125-8.5-10.75-19T96 304t3.125-20.5 10.75-19T128 256t18.125 8.5 10.75 19T160 304zm160 0q0 10-3.125 20.5t-10.75 19T288 352t-18.125-8.5-10.75-19T256 304t3.125-20.5 10.75-19T288 256t18.125 8.5 10.75 19T320 304zm40 0q0-30-17.25-51T296 232q-10.25 0-48.75 5.25Q229.5 240 208 240t-39.25-2.75Q130.75 232 120 232q-29.5 0-46.75 21T56 304q0 22 8 38.375t20.25 25.75 30.5 15 35 7.375 37.25 1.75h42q20.5 0 37.25-1.75t35-7.375 30.5-15 20.25-25.75T360 304zm56-44q0 51.75-15.25 82.75-9.5 19.25-26.375 33.25t-35.25 21.5-42.5 11.875-42.875 5.5T212 416q-19.5 0-35.5-.75t-36.875-3.125-38.125-7.5-34.25-12.875T37 371.5t-21.5-28.75Q0 312 0 260q0-59.25 34-99-6.75-20.5-6.75-42.5 0-29 12.75-54.5 27 0 47.5 9.875t47.25 30.875Q171.5 96 212 96q37 0 70 8 26.25-20.5 46.75-30.25T376 64q12.75 25.5 12.75 54.5 0 21.75-6.75 42 34 40 34 99.5z"/></svg>
         
       </defs>
     </svg>
@@ -116,6 +99,8 @@
             </span>
             <span class="md-header-nav__topic">
               
+                
+              
             </span>
           
         </div>
@@ -180,7 +165,7 @@
         
       
       
-      <main class="md-main">
+      <main class="md-main" role="main">
         <div class="md-main__inner md-grid" data-md-component="container">
           
             
@@ -225,104 +210,8 @@
 
 
   <li class="md-nav__item">
-    <a href="/." title="Install" class="md-nav__link">
-      Install
-    </a>
-  </li>
-
-    
-      
-      
-      
-
-
-  <li class="md-nav__item">
-    <a href="/read/" title="Read" class="md-nav__link">
-      Read
-    </a>
-  </li>
-
-    
-      
-      
-      
-
-
-  <li class="md-nav__item">
-    <a href="/path_expressions/" title="Path Expressions" class="md-nav__link">
-      Path Expressions
-    </a>
-  </li>
-
-    
-      
-      
-      
-
-
-  <li class="md-nav__item">
-    <a href="/write/" title="Write/Update" class="md-nav__link">
-      Write/Update
-    </a>
-  </li>
-
-    
-      
-      
-      
-
-
-  <li class="md-nav__item">
-    <a href="/prefix/" title="Prefix" class="md-nav__link">
-      Prefix
-    </a>
-  </li>
-
-    
-      
-      
-      
-
-
-  <li class="md-nav__item">
-    <a href="/delete/" title="Delete" class="md-nav__link">
-      Delete
-    </a>
-  </li>
-
-    
-      
-      
-      
-
-
-  <li class="md-nav__item">
-    <a href="/create/" title="Create" class="md-nav__link">
-      Create
-    </a>
-  </li>
-
-    
-      
-      
-      
-
-
-  <li class="md-nav__item">
-    <a href="/convert/" title="Convert" class="md-nav__link">
-      Convert
-    </a>
-  </li>
-
-    
-      
-      
-      
-
-
-  <li class="md-nav__item">
-    <a href="/merge/" title="Merge" class="md-nav__link">
-      Merge
+    <a href="/." title="Home" class="md-nav__link">
+      Home
     </a>
   </li>
 
@@ -364,22 +253,13 @@
           Material for MkDocs</a>
       </div>
       
-  <div class="md-footer-social">
-    <link rel="stylesheet" href="/assets/fonts/font-awesome.css">
-    
-      <a href="https://github.com/mikefarah" class="md-footer-social__link fa fa-github"></a>
-    
-      <a href="https://www.linkedin.com/in/mike-farah-b5a75b2/" class="md-footer-social__link fa fa-linkedin"></a>
-    
-  </div>
-
     </div>
   </div>
 </footer>
       
     </div>
     
-      <script src="/assets/javascripts/application.39abc4af.js"></script>
+      <script src="/assets/javascripts/application.808e90bb.js"></script>
       
       <script>app.initialize({version:"1.0.4",url:{base:"/"}})</script>
       

docs/assets/images/icons/bitbucket.1b09e088.svg

@@ -1,20 +1 @@
-<svg xmlns="http://www.w3.org/2000/svg" width="352" height="448"
-    viewBox="0 0 352 448" id="__bitbucket">
-  <path fill="currentColor" d="M203.75 214.75q2 15.75-12.625 25.25t-27.875
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-        6.875 16.875zM231.5 209.5q-3.5-26.75-28.25-41t-49.25-3.25q-15.75
-        7-25.125 22.125t-8.625 32.375q1 22.75 19.375 38.75t41.375 14q22.75-2
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-        1.75-16.5 3t-13.75 5.5-12.5 10.75q7.5 7 19 11.375t18.375 5.5 21.875
-        2.875q57 7.25 112 0.25 15.75-2 22.375-3t18.125-5.375 18.75-11.625zM305.5
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-        4.5-2.25q55.75 37 126.625 37t126.875-37q5.25 1.5 6 5.75t-1.25 11.25-2
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-</svg>
+<svg xmlns="http://www.w3.org/2000/svg" width="352" height="448" viewBox="0 0 352 448" id="__bitbucket"><path fill="currentColor" d="M203.75 214.75q2 15.75-12.625 25.25t-27.875 1.5q-9.75-4.25-13.375-14.5t-.125-20.5 13-14.5q9-4.5 18.125-3t16 8.875 6.875 16.875zm27.75-5.25q-3.5-26.75-28.25-41T154 165.25q-15.75 7-25.125 22.125t-8.625 32.375q1 22.75 19.375 38.75t41.375 14q22.75-2 38-21t12.5-42zM291.25 74q-5-6.75-14-11.125t-14.5-5.5T245 54.25q-72.75-11.75-141.5.5-10.75 1.75-16.5 3t-13.75 5.5T60.75 74q7.5 7 19 11.375t18.375 5.5T120 93.75Q177 101 232 94q15.75-2 22.375-3t18.125-5.375T291.25 74zm14.25 258.75q-2 6.5-3.875 19.125t-3.5 21-7.125 17.5-14.5 14.125q-21.5 12-47.375 17.875t-50.5 5.5-50.375-4.625q-11.5-2-20.375-4.5T88.75 412 70.5 401.125t-13-15.375q-6.25-24-14.25-73l1.5-4 4.5-2.25q55.75 37 126.625 37t126.875-37q5.25 1.5 6 5.75t-1.25 11.25-2 9.25zM350.75 92.5q-6.5 41.75-27.75 163.75-1.25 7.5-6.75 14t-10.875 10T291.75 288q-63 31.5-152.5 22-62-6.75-98.5-34.75-3.75-3-6.375-6.625t-4.25-8.75-2.25-8.5-1.5-9.875T25 232.75q-2.25-12.5-6.625-37.5t-7-40.375T5.5 118 0 78.5Q.75 72 4.375 66.375T12.25 57t11.25-7.5T35 43.875t12-4.625q31.25-11.5 78.25-16 94.75-9.25 169 12.5Q333 47.25 348 66.25q4 5 4.125 12.75t-1.375 13.5z"/></svg>

docs/assets/images/icons/github.f0b8504a.svg

@@ -1,18 +1 @@
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-    viewBox="0 0 416 448" id="__github">
-  <path fill="currentColor" d="M160 304q0 10-3.125 20.5t-10.75 19-18.125
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docs/assets/javascripts/lunr/lunr.da.js

@@ -1 +1,17 @@
+/*!
+ * Lunr languages, `Danish` language
+ * https://github.com/MihaiValentin/lunr-languages
+ *
+ * Copyright 2014, Mihai Valentin
+ * http://www.mozilla.org/MPL/
+ */
+/*!
+ * based on
+ * Snowball JavaScript Library v0.3
+ * http://code.google.com/p/urim/
+ * http://snowball.tartarus.org/
+ *
+ * Copyright 2010, Oleg Mazko
+ * http://www.mozilla.org/MPL/
+ */
 !function(e,r){"function"==typeof define&&define.amd?define(r):"object"==typeof exports?module.exports=r():r()(e.lunr)}(this,function(){return function(e){if(void 0===e)throw new Error("Lunr is not present. Please include / require Lunr before this script.");if(void 0===e.stemmerSupport)throw new Error("Lunr stemmer support is not present. Please include / require Lunr stemmer support before this script.");var r,m,i;e.da=function(){this.pipeline.reset(),this.pipeline.add(e.da.trimmer,e.da.stopWordFilter,e.da.stemmer),this.searchPipeline&&(this.searchPipeline.reset(),this.searchPipeline.add(e.da.stemmer))},e.da.wordCharacters="A-Za-zªºÀ-ÖØ-öø-ʸˠ-ˤᴀ-ᴥᴬ-ᵜᵢ-ᵥᵫ-ᵷᵹ-ᶾḀ-ỿⁱⁿₐ-ₜKÅℲⅎⅠ-ↈⱠ-ⱿꜢ-ꞇꞋ-ꞭꞰ-ꞷꟷ-ꟿꬰ-ꭚꭜ-ꭤff-stＡ-Ｚａ-ｚ",e.da.trimmer=e.trimmerSupport.generateTrimmer(e.da.wordCharacters),e.Pipeline.registerFunction(e.da.trimmer,"trimmer-da"),e.da.stemmer=(r=e.stemmerSupport.Among,m=e.stemmerSupport.SnowballProgram,i=new function(){var i,t,n,s=[new r("hed",-1,1),new r("ethed",0,1),new r("ered",-1,1),new r("e",-1,1),new r("erede",3,1),new r("ende",3,1),new r("erende",5,1),new r("ene",3,1),new r("erne",3,1),new r("ere",3,1),new r("en",-1,1),new r("heden",10,1),new r("eren",10,1),new r("er",-1,1),new r("heder",13,1),new r("erer",13,1),new r("s",-1,2),new r("heds",16,1),new r("es",16,1),new r("endes",18,1),new r("erendes",19,1),new r("enes",18,1),new r("ernes",18,1),new r("eres",18,1),new r("ens",16,1),new r("hedens",24,1),new r("erens",24,1),new r("ers",16,1),new r("ets",16,1),new r("erets",28,1),new r("et",-1,1),new r("eret",30,1)],o=[new r("gd",-1,-1),new r("dt",-1,-1),new r("gt",-1,-1),new r("kt",-1,-1)],a=[new r("ig",-1,1),new r("lig",0,1),new r("elig",1,1),new r("els",-1,1),new r("løst",-1,2)],d=[17,65,16,1,0,0,0,0,0,0,0,0,0,0,0,0,48,0,128],u=[239,254,42,3,0,0,0,0,0,0,0,0,0,0,0,0,16],c=new m;function l(){var e,r=c.limit-c.cursor;c.cursor>=t&&(e=c.limit_backward,c.limit_backward=t,c.ket=c.cursor,c.find_among_b(o,4)?(c.bra=c.cursor,c.limit_backward=e,c.cursor=c.limit-r,c.cursor>c.limit_backward&&(c.cursor--,c.bra=c.cursor,c.slice_del())):c.limit_backward=e)}this.setCurrent=function(e){c.setCurrent(e)},this.getCurrent=function(){return c.getCurrent()},this.stem=function(){var e,r=c.cursor;return function(){var e,r=c.cursor+3;if(t=c.limit,0<=r&&r<=c.limit){for(i=r;;){if(e=c.cursor,c.in_grouping(d,97,248)){c.cursor=e;break}if((c.cursor=e)>=c.limit)return;c.cursor++}for(;!c.out_grouping(d,97,248);){if(c.cursor>=c.limit)return;c.cursor++}(t=c.cursor)<i&&(t=i)}}(),c.limit_backward=r,c.cursor=c.limit,function(){var e,r;if(c.cursor>=t&&(r=c.limit_backward,c.limit_backward=t,c.ket=c.cursor,e=c.find_among_b(s,32),c.limit_backward=r,e))switch(c.bra=c.cursor,e){case 1:c.slice_del();break;case 2:c.in_grouping_b(u,97,229)&&c.slice_del()}}(),c.cursor=c.limit,l(),c.cursor=c.limit,function(){var e,r,i,n=c.limit-c.cursor;if(c.ket=c.cursor,c.eq_s_b(2,"st")&&(c.bra=c.cursor,c.eq_s_b(2,"ig")&&c.slice_del()),c.cursor=c.limit-n,c.cursor>=t&&(r=c.limit_backward,c.limit_backward=t,c.ket=c.cursor,e=c.find_among_b(a,5),c.limit_backward=r,e))switch(c.bra=c.cursor,e){case 1:c.slice_del(),i=c.limit-c.cursor,l(),c.cursor=c.limit-i;break;case 2:c.slice_from("løs")}}(),c.cursor=c.limit,c.cursor>=t&&(e=c.limit_backward,c.limit_backward=t,c.ket=c.cursor,c.out_grouping_b(d,97,248)?(c.bra=c.cursor,n=c.slice_to(n),c.limit_backward=e,c.eq_v_b(n)&&c.slice_del()):c.limit_backward=e),!0}},function(e){return"function"==typeof e.update?e.update(function(e){return i.setCurrent(e),i.stem(),i.getCurrent()}):(i.setCurrent(e),i.stem(),i.getCurrent())}),e.Pipeline.registerFunction(e.da.stemmer,"stemmer-da"),e.da.stopWordFilter=e.generateStopWordFilter("ad af alle alt anden at blev blive bliver da de dem den denne der deres det dette dig din disse dog du efter eller en end er et for fra ham han hans har havde have hende hendes her hos hun hvad hvis hvor i ikke ind jeg jer jo kunne man mange med meget men mig min mine mit mod ned noget nogle nu når og også om op os over på selv sig sin sine sit skal skulle som sådan thi til ud under var vi vil ville vor være været".split(" ")),e.Pipeline.registerFunction(e.da.stopWordFilter,"stopWordFilter-da")}});

docs/assets/javascripts/lunr/lunr.ja.js

@@ -1 +1,17 @@
+/*!
+ * Lunr languages, `Japanese` language
+ * https://github.com/MihaiValentin/lunr-languages
+ *
+ * Copyright 2014, Chad Liu
+ * http://www.mozilla.org/MPL/
+ */
+/*!
+ * based on
+ * Snowball JavaScript Library v0.3
+ * http://code.google.com/p/urim/
+ * http://snowball.tartarus.org/
+ *
+ * Copyright 2010, Oleg Mazko
+ * http://www.mozilla.org/MPL/
+ */
 !function(e,r){"function"==typeof define&&define.amd?define(r):"object"==typeof exports?module.exports=r():r()(e.lunr)}(this,function(){return function(m){if(void 0===m)throw new Error("Lunr is not present. Please include / require Lunr before this script.");if(void 0===m.stemmerSupport)throw new Error("Lunr stemmer support is not present. Please include / require Lunr stemmer support before this script.");var l="2"==m.version[0];m.ja=function(){this.pipeline.reset(),this.pipeline.add(m.ja.trimmer,m.ja.stopWordFilter,m.ja.stemmer),l?this.tokenizer=m.ja.tokenizer:(m.tokenizer&&(m.tokenizer=m.ja.tokenizer),this.tokenizerFn&&(this.tokenizerFn=m.ja.tokenizer))};var j=new m.TinySegmenter;m.ja.tokenizer=function(e){var r,t,i,n,o,s,p,a,u;if(!arguments.length||null==e||null==e)return[];if(Array.isArray(e))return e.map(function(e){return l?new m.Token(e.toLowerCase()):e.toLowerCase()});for(r=(t=e.toString().toLowerCase().replace(/^\s+/,"")).length-1;0<=r;r--)if(/\S/.test(t.charAt(r))){t=t.substring(0,r+1);break}for(o=[],i=t.length,p=a=0;a<=i;a++)if(s=a-p,t.charAt(a).match(/\s/)||a==i){if(0<s)for(n=j.segment(t.slice(p,a)).filter(function(e){return!!e}),u=p,r=0;r<n.length;r++)l?o.push(new m.Token(n[r],{position:[u,n[r].length],index:o.length})):o.push(n[r]),u+=n[r].length;p=a+1}return o},m.ja.stemmer=function(e){return e},m.Pipeline.registerFunction(m.ja.stemmer,"stemmer-ja"),m.ja.wordCharacters="一二三四五六七八九十百千万億兆一-龠々〆ヵヶぁ-んァ-ヴーｱ-ﾝﾞa-zA-Zａ-ｚＡ-Ｚ0-9０-９",m.ja.trimmer=m.trimmerSupport.generateTrimmer(m.ja.wordCharacters),m.Pipeline.registerFunction(m.ja.trimmer,"trimmer-ja"),m.ja.stopWordFilter=m.generateStopWordFilter("これ それ あれ この その あの ここ そこ あそこ こちら どこ だれ なに なん 何 私 貴方 貴方方 我々 私達 あの人 あのかた 彼女 彼 です あります おります います は が の に を で え から まで より も どの と し それで しかし".split(" ")),m.Pipeline.registerFunction(m.ja.stopWordFilter,"stopWordFilter-ja"),m.jp=m.ja,m.Pipeline.registerFunction(m.jp.stemmer,"stemmer-jp"),m.Pipeline.registerFunction(m.jp.trimmer,"trimmer-jp"),m.Pipeline.registerFunction(m.jp.stopWordFilter,"stopWordFilter-jp")}});

docs/assets/javascripts/lunr/lunr.multi.js

@@ -1 +1 @@
-!function(e,i){"function"==typeof define&&define.amd?define(i):"object"==typeof exports?module.exports=i():i()(e.lunr)}(this,function(){return function(o){o.multiLanguage=function(){for(var e=Array.prototype.slice.call(arguments),i=e.join("-"),t="",r=[],n=[],s=0;s<e.length;++s)"en"==e[s]?(t+="\\w",r.unshift(o.stopWordFilter),r.push(o.stemmer),n.push(o.stemmer)):(t+=o[e[s]].wordCharacters,r.unshift(o[e[s]].stopWordFilter),r.push(o[e[s]].stemmer),n.push(o[e[s]].stemmer));var p=o.trimmerSupport.generateTrimmer(t);return o.Pipeline.registerFunction(p,"lunr-multi-trimmer-"+i),r.unshift(p),function(){this.pipeline.reset(),this.pipeline.add.apply(this.pipeline,r),this.searchPipeline&&(this.searchPipeline.reset(),this.searchPipeline.add.apply(this.searchPipeline,n))}}}});
+!function(e,t){"function"==typeof define&&define.amd?define(t):"object"==typeof exports?module.exports=t():t()(e.lunr)}(this,function(){return function(o){o.multiLanguage=function(){for(var e=Array.prototype.slice.call(arguments),t=e.join("-"),i="",r=[],n=[],s=0;s<e.length;++s)"en"==e[s]?(i+="\\w",r.unshift(o.stopWordFilter),r.push(o.stemmer),n.push(o.stemmer)):(i+=o[e[s]].wordCharacters,o[e[s]].stopWordFilter&&r.unshift(o[e[s]].stopWordFilter),o[e[s]].stemmer&&(r.push(o[e[s]].stemmer),n.push(o[e[s]].stemmer)));var p=o.trimmerSupport.generateTrimmer(i);return o.Pipeline.registerFunction(p,"lunr-multi-trimmer-"+t),r.unshift(p),function(){this.pipeline.reset(),this.pipeline.add.apply(this.pipeline,r),this.searchPipeline&&(this.searchPipeline.reset(),this.searchPipeline.add.apply(this.searchPipeline,n))}}}});

docs/assets/javascripts/lunr/lunr.no.js

@@ -1 +1,17 @@
+/*!
+ * Lunr languages, `Norwegian` language
+ * https://github.com/MihaiValentin/lunr-languages
+ *
+ * Copyright 2014, Mihai Valentin
+ * http://www.mozilla.org/MPL/
+ */
+/*!
+ * based on
+ * Snowball JavaScript Library v0.3
+ * http://code.google.com/p/urim/
+ * http://snowball.tartarus.org/
+ *
+ * Copyright 2010, Oleg Mazko
+ * http://www.mozilla.org/MPL/
+ */
 !function(e,r){"function"==typeof define&&define.amd?define(r):"object"==typeof exports?module.exports=r():r()(e.lunr)}(this,function(){return function(e){if(void 0===e)throw new Error("Lunr is not present. Please include / require Lunr before this script.");if(void 0===e.stemmerSupport)throw new Error("Lunr stemmer support is not present. Please include / require Lunr stemmer support before this script.");var r,n,i;e.no=function(){this.pipeline.reset(),this.pipeline.add(e.no.trimmer,e.no.stopWordFilter,e.no.stemmer),this.searchPipeline&&(this.searchPipeline.reset(),this.searchPipeline.add(e.no.stemmer))},e.no.wordCharacters="A-Za-zªºÀ-ÖØ-öø-ʸˠ-ˤᴀ-ᴥᴬ-ᵜᵢ-ᵥᵫ-ᵷᵹ-ᶾḀ-ỿⁱⁿₐ-ₜKÅℲⅎⅠ-ↈⱠ-ⱿꜢ-ꞇꞋ-ꞭꞰ-ꞷꟷ-ꟿꬰ-ꭚꭜ-ꭤff-stＡ-Ｚａ-ｚ",e.no.trimmer=e.trimmerSupport.generateTrimmer(e.no.wordCharacters),e.Pipeline.registerFunction(e.no.trimmer,"trimmer-no"),e.no.stemmer=(r=e.stemmerSupport.Among,n=e.stemmerSupport.SnowballProgram,i=new function(){var o,s,a=[new r("a",-1,1),new r("e",-1,1),new r("ede",1,1),new r("ande",1,1),new r("ende",1,1),new r("ane",1,1),new r("ene",1,1),new r("hetene",6,1),new r("erte",1,3),new r("en",-1,1),new r("heten",9,1),new r("ar",-1,1),new r("er",-1,1),new r("heter",12,1),new r("s",-1,2),new r("as",14,1),new r("es",14,1),new r("edes",16,1),new r("endes",16,1),new r("enes",16,1),new r("hetenes",19,1),new r("ens",14,1),new r("hetens",21,1),new r("ers",14,1),new r("ets",14,1),new r("et",-1,1),new r("het",25,1),new r("ert",-1,3),new r("ast",-1,1)],m=[new r("dt",-1,-1),new r("vt",-1,-1)],l=[new r("leg",-1,1),new r("eleg",0,1),new r("ig",-1,1),new r("eig",2,1),new r("lig",2,1),new r("elig",4,1),new r("els",-1,1),new r("lov",-1,1),new r("elov",7,1),new r("slov",7,1),new r("hetslov",9,1)],u=[17,65,16,1,0,0,0,0,0,0,0,0,0,0,0,0,48,0,128],d=[119,125,149,1],c=new n;this.setCurrent=function(e){c.setCurrent(e)},this.getCurrent=function(){return c.getCurrent()},this.stem=function(){var e,r,n,i,t=c.cursor;return function(){var e,r=c.cursor+3;if(s=c.limit,0<=r||r<=c.limit){for(o=r;;){if(e=c.cursor,c.in_grouping(u,97,248)){c.cursor=e;break}if(e>=c.limit)return;c.cursor=e+1}for(;!c.out_grouping(u,97,248);){if(c.cursor>=c.limit)return;c.cursor++}(s=c.cursor)<o&&(s=o)}}(),c.limit_backward=t,c.cursor=c.limit,function(){var e,r,n;if(c.cursor>=s&&(r=c.limit_backward,c.limit_backward=s,c.ket=c.cursor,e=c.find_among_b(a,29),c.limit_backward=r,e))switch(c.bra=c.cursor,e){case 1:c.slice_del();break;case 2:n=c.limit-c.cursor,c.in_grouping_b(d,98,122)?c.slice_del():(c.cursor=c.limit-n,c.eq_s_b(1,"k")&&c.out_grouping_b(u,97,248)&&c.slice_del());break;case 3:c.slice_from("er")}}(),c.cursor=c.limit,r=c.limit-c.cursor,c.cursor>=s&&(e=c.limit_backward,c.limit_backward=s,c.ket=c.cursor,c.find_among_b(m,2)?(c.bra=c.cursor,c.limit_backward=e,c.cursor=c.limit-r,c.cursor>c.limit_backward&&(c.cursor--,c.bra=c.cursor,c.slice_del())):c.limit_backward=e),c.cursor=c.limit,c.cursor>=s&&(i=c.limit_backward,c.limit_backward=s,c.ket=c.cursor,(n=c.find_among_b(l,11))?(c.bra=c.cursor,c.limit_backward=i,1==n&&c.slice_del()):c.limit_backward=i),!0}},function(e){return"function"==typeof e.update?e.update(function(e){return i.setCurrent(e),i.stem(),i.getCurrent()}):(i.setCurrent(e),i.stem(),i.getCurrent())}),e.Pipeline.registerFunction(e.no.stemmer,"stemmer-no"),e.no.stopWordFilter=e.generateStopWordFilter("alle at av bare begge ble blei bli blir blitt både båe da de deg dei deim deira deires dem den denne der dere deres det dette di din disse ditt du dykk dykkar då eg ein eit eitt eller elles en enn er et ett etter for fordi fra før ha hadde han hans har hennar henne hennes her hjå ho hoe honom hoss hossen hun hva hvem hver hvilke hvilken hvis hvor hvordan hvorfor i ikke ikkje ikkje ingen ingi inkje inn inni ja jeg kan kom korleis korso kun kunne kva kvar kvarhelst kven kvi kvifor man mange me med medan meg meget mellom men mi min mine mitt mot mykje ned no noe noen noka noko nokon nokor nokre nå når og også om opp oss over på samme seg selv si si sia sidan siden sin sine sitt sjøl skal skulle slik so som som somme somt så sånn til um upp ut uten var vart varte ved vere verte vi vil ville vore vors vort vår være være vært å".split(" ")),e.Pipeline.registerFunction(e.no.stopWordFilter,"stopWordFilter-no")}});

docs/assets/javascripts/lunr/lunr.stemmer.support.js

@@ -1 +1,9 @@
+/*!
+ * Snowball JavaScript Library v0.3
+ * http://code.google.com/p/urim/
+ * http://snowball.tartarus.org/
+ *
+ * Copyright 2010, Oleg Mazko
+ * http://www.mozilla.org/MPL/
+ */
 !function(r,t){"function"==typeof define&&define.amd?define(t):"object"==typeof exports?module.exports=t():t()(r.lunr)}(this,function(){return function(r){r.stemmerSupport={Among:function(r,t,i,s){if(this.toCharArray=function(r){for(var t=r.length,i=new Array(t),s=0;s<t;s++)i[s]=r.charCodeAt(s);return i},!r&&""!=r||!t&&0!=t||!i)throw"Bad Among initialisation: s:"+r+", substring_i: "+t+", result: "+i;this.s_size=r.length,this.s=this.toCharArray(r),this.substring_i=t,this.result=i,this.method=s},SnowballProgram:function(){var b;return{bra:0,ket:0,limit:0,cursor:0,limit_backward:0,setCurrent:function(r){b=r,this.cursor=0,this.limit=r.length,this.limit_backward=0,this.bra=this.cursor,this.ket=this.limit},getCurrent:function(){var r=b;return b=null,r},in_grouping:function(r,t,i){if(this.cursor<this.limit){var s=b.charCodeAt(this.cursor);if(s<=i&&t<=s&&r[(s-=t)>>3]&1<<(7&s))return this.cursor++,!0}return!1},in_grouping_b:function(r,t,i){if(this.cursor>this.limit_backward){var s=b.charCodeAt(this.cursor-1);if(s<=i&&t<=s&&r[(s-=t)>>3]&1<<(7&s))return this.cursor--,!0}return!1},out_grouping:function(r,t,i){if(this.cursor<this.limit){var s=b.charCodeAt(this.cursor);if(i<s||s<t)return this.cursor++,!0;if(!(r[(s-=t)>>3]&1<<(7&s)))return this.cursor++,!0}return!1},out_grouping_b:function(r,t,i){if(this.cursor>this.limit_backward){var s=b.charCodeAt(this.cursor-1);if(i<s||s<t)return this.cursor--,!0;if(!(r[(s-=t)>>3]&1<<(7&s)))return this.cursor--,!0}return!1},eq_s:function(r,t){if(this.limit-this.cursor<r)return!1;for(var i=0;i<r;i++)if(b.charCodeAt(this.cursor+i)!=t.charCodeAt(i))return!1;return this.cursor+=r,!0},eq_s_b:function(r,t){if(this.cursor-this.limit_backward<r)return!1;for(var i=0;i<r;i++)if(b.charCodeAt(this.cursor-r+i)!=t.charCodeAt(i))return!1;return this.cursor-=r,!0},find_among:function(r,t){for(var i=0,s=t,e=this.cursor,n=this.limit,u=0,o=0,h=!1;;){for(var c=i+(s-i>>1),a=0,f=u<o?u:o,l=r[c],_=f;_<l.s_size;_++){if(e+f==n){a=-1;break}if(a=b.charCodeAt(e+f)-l.s[_])break;f++}if(a<0?(s=c,o=f):(i=c,u=f),s-i<=1){if(0<i||s==i||h)break;h=!0}}for(;;){if(u>=(l=r[i]).s_size){if(this.cursor=e+l.s_size,!l.method)return l.result;var m=l.method();if(this.cursor=e+l.s_size,m)return l.result}if((i=l.substring_i)<0)return 0}},find_among_b:function(r,t){for(var i=0,s=t,e=this.cursor,n=this.limit_backward,u=0,o=0,h=!1;;){for(var c=i+(s-i>>1),a=0,f=u<o?u:o,l=(_=r[c]).s_size-1-f;0<=l;l--){if(e-f==n){a=-1;break}if(a=b.charCodeAt(e-1-f)-_.s[l])break;f++}if(a<0?(s=c,o=f):(i=c,u=f),s-i<=1){if(0<i||s==i||h)break;h=!0}}for(;;){var _;if(u>=(_=r[i]).s_size){if(this.cursor=e-_.s_size,!_.method)return _.result;var m=_.method();if(this.cursor=e-_.s_size,m)return _.result}if((i=_.substring_i)<0)return 0}},replace_s:function(r,t,i){var s=i.length-(t-r);return b=b.substring(0,r)+i+b.substring(t),this.limit+=s,this.cursor>=t?this.cursor+=s:this.cursor>r&&(this.cursor=r),s},slice_check:function(){if(this.bra<0||this.bra>this.ket||this.ket>this.limit||this.limit>b.length)throw"faulty slice operation"},slice_from:function(r){this.slice_check(),this.replace_s(this.bra,this.ket,r)},slice_del:function(){this.slice_from("")},insert:function(r,t,i){var s=this.replace_s(r,t,i);r<=this.bra&&(this.bra+=s),r<=this.ket&&(this.ket+=s)},slice_to:function(){return this.slice_check(),b.substring(this.bra,this.ket)},eq_v_b:function(r){return this.eq_s_b(r.length,r)}}}},r.trimmerSupport={generateTrimmer:function(r){var t=new RegExp("^[^"+r+"]+"),i=new RegExp("[^"+r+"]+$");return function(r){return"function"==typeof r.update?r.update(function(r){return r.replace(t,"").replace(i,"")}):r.replace(t,"").replace(i,"")}}}}});

docs/assets/javascripts/lunr/lunr.sv.js

@@ -1 +1,17 @@
+/*!
+ * Lunr languages, `Swedish` language
+ * https://github.com/MihaiValentin/lunr-languages
+ *
+ * Copyright 2014, Mihai Valentin
+ * http://www.mozilla.org/MPL/
+ */
+/*!
+ * based on
+ * Snowball JavaScript Library v0.3
+ * http://code.google.com/p/urim/
+ * http://snowball.tartarus.org/
+ *
+ * Copyright 2010, Oleg Mazko
+ * http://www.mozilla.org/MPL/
+ */
 !function(e,r){"function"==typeof define&&define.amd?define(r):"object"==typeof exports?module.exports=r():r()(e.lunr)}(this,function(){return function(e){if(void 0===e)throw new Error("Lunr is not present. Please include / require Lunr before this script.");if(void 0===e.stemmerSupport)throw new Error("Lunr stemmer support is not present. Please include / require Lunr stemmer support before this script.");var r,l,n;e.sv=function(){this.pipeline.reset(),this.pipeline.add(e.sv.trimmer,e.sv.stopWordFilter,e.sv.stemmer),this.searchPipeline&&(this.searchPipeline.reset(),this.searchPipeline.add(e.sv.stemmer))},e.sv.wordCharacters="A-Za-zªºÀ-ÖØ-öø-ʸˠ-ˤᴀ-ᴥᴬ-ᵜᵢ-ᵥᵫ-ᵷᵹ-ᶾḀ-ỿⁱⁿₐ-ₜKÅℲⅎⅠ-ↈⱠ-ⱿꜢ-ꞇꞋ-ꞭꞰ-ꞷꟷ-ꟿꬰ-ꭚꭜ-ꭤff-stＡ-Ｚａ-ｚ",e.sv.trimmer=e.trimmerSupport.generateTrimmer(e.sv.wordCharacters),e.Pipeline.registerFunction(e.sv.trimmer,"trimmer-sv"),e.sv.stemmer=(r=e.stemmerSupport.Among,l=e.stemmerSupport.SnowballProgram,n=new function(){var n,t,i=[new r("a",-1,1),new r("arna",0,1),new r("erna",0,1),new r("heterna",2,1),new r("orna",0,1),new r("ad",-1,1),new r("e",-1,1),new r("ade",6,1),new r("ande",6,1),new r("arne",6,1),new r("are",6,1),new r("aste",6,1),new r("en",-1,1),new r("anden",12,1),new r("aren",12,1),new r("heten",12,1),new r("ern",-1,1),new r("ar",-1,1),new r("er",-1,1),new r("heter",18,1),new r("or",-1,1),new r("s",-1,2),new r("as",21,1),new r("arnas",22,1),new r("ernas",22,1),new r("ornas",22,1),new r("es",21,1),new r("ades",26,1),new r("andes",26,1),new r("ens",21,1),new r("arens",29,1),new r("hetens",29,1),new r("erns",21,1),new r("at",-1,1),new r("andet",-1,1),new r("het",-1,1),new r("ast",-1,1)],s=[new r("dd",-1,-1),new r("gd",-1,-1),new r("nn",-1,-1),new r("dt",-1,-1),new r("gt",-1,-1),new r("kt",-1,-1),new r("tt",-1,-1)],a=[new r("ig",-1,1),new r("lig",0,1),new r("els",-1,1),new r("fullt",-1,3),new r("löst",-1,2)],o=[17,65,16,1,0,0,0,0,0,0,0,0,0,0,0,0,24,0,32],u=[119,127,149],m=new l;this.setCurrent=function(e){m.setCurrent(e)},this.getCurrent=function(){return m.getCurrent()},this.stem=function(){var e,r=m.cursor;return function(){var e,r=m.cursor+3;if(t=m.limit,0<=r||r<=m.limit){for(n=r;;){if(e=m.cursor,m.in_grouping(o,97,246)){m.cursor=e;break}if(m.cursor=e,m.cursor>=m.limit)return;m.cursor++}for(;!m.out_grouping(o,97,246);){if(m.cursor>=m.limit)return;m.cursor++}(t=m.cursor)<n&&(t=n)}}(),m.limit_backward=r,m.cursor=m.limit,function(){var e,r=m.limit_backward;if(m.cursor>=t&&(m.limit_backward=t,m.cursor=m.limit,m.ket=m.cursor,e=m.find_among_b(i,37),m.limit_backward=r,e))switch(m.bra=m.cursor,e){case 1:m.slice_del();break;case 2:m.in_grouping_b(u,98,121)&&m.slice_del()}}(),m.cursor=m.limit,e=m.limit_backward,m.cursor>=t&&(m.limit_backward=t,m.cursor=m.limit,m.find_among_b(s,7)&&(m.cursor=m.limit,m.ket=m.cursor,m.cursor>m.limit_backward&&(m.bra=--m.cursor,m.slice_del())),m.limit_backward=e),m.cursor=m.limit,function(){var e,r;if(m.cursor>=t){if(r=m.limit_backward,m.limit_backward=t,m.cursor=m.limit,m.ket=m.cursor,e=m.find_among_b(a,5))switch(m.bra=m.cursor,e){case 1:m.slice_del();break;case 2:m.slice_from("lös");break;case 3:m.slice_from("full")}m.limit_backward=r}}(),!0}},function(e){return"function"==typeof e.update?e.update(function(e){return n.setCurrent(e),n.stem(),n.getCurrent()}):(n.setCurrent(e),n.stem(),n.getCurrent())}),e.Pipeline.registerFunction(e.sv.stemmer,"stemmer-sv"),e.sv.stopWordFilter=e.generateStopWordFilter("alla allt att av blev bli blir blivit de dem den denna deras dess dessa det detta dig din dina ditt du där då efter ej eller en er era ert ett från för ha hade han hans har henne hennes hon honom hur här i icke ingen inom inte jag ju kan kunde man med mellan men mig min mina mitt mot mycket ni nu när någon något några och om oss på samma sedan sig sin sina sitta själv skulle som så sådan sådana sådant till under upp ut utan vad var vara varför varit varje vars vart vem vi vid vilka vilkas vilken vilket vår våra vårt än är åt över".split(" ")),e.Pipeline.registerFunction(e.sv.stopWordFilter,"stopWordFilter-sv")}});

docs/assets/javascripts/lunr/lunr.th.js

@@ -1 +1,17 @@
+/*!
+ * Lunr languages, `Thai` language
+ * https://github.com/MihaiValentin/lunr-languages
+ *
+ * Copyright 2017, Keerati Thiwanruk
+ * http://www.mozilla.org/MPL/
+ */
+/*!
+ * based on
+ * Snowball JavaScript Library v0.3
+ * http://code.google.com/p/urim/
+ * http://snowball.tartarus.org/
+ *
+ * Copyright 2010, Oleg Mazko
+ * http://www.mozilla.org/MPL/
+ */
 !function(e,r){"function"==typeof define&&define.amd?define(r):"object"==typeof exports?module.exports=r():r()(e.lunr)}(this,function(){return function(t){if(void 0===t)throw new Error("Lunr is not present. Please include / require Lunr before this script.");if(void 0===t.stemmerSupport)throw new Error("Lunr stemmer support is not present. Please include / require Lunr stemmer support before this script.");var i="2"==t.version[0];t.th=function(){this.pipeline.reset(),this.pipeline.add(t.th.trimmer),i?this.tokenizer=t.th.tokenizer:(t.tokenizer&&(t.tokenizer=t.th.tokenizer),this.tokenizerFn&&(this.tokenizerFn=t.th.tokenizer))},t.th.wordCharacters="[฀-๿]",t.th.trimmer=t.trimmerSupport.generateTrimmer(t.th.wordCharacters),t.Pipeline.registerFunction(t.th.trimmer,"trimmer-th");var n=t.wordcut;n.init(),t.th.tokenizer=function(e){if(!arguments.length||null==e||null==e)return[];if(Array.isArray(e))return e.map(function(e){return i?new t.Token(e):e});var r=e.toString().replace(/^\s+/,"");return n.cut(r).split("|")}}});

docs/assets/javascripts/lunr/lunr.vi.js

@@ -0,0 +1,17 @@
+/*!
+ * Lunr languages, `Vietnamese` language
+ * https://github.com/MihaiValentin/lunr-languages
+ *
+ * Copyright 2017, Keerati Thiwanruk
+ * http://www.mozilla.org/MPL/
+ */
+/*!
+ * based on
+ * Snowball JavaScript Library v0.3
+ * http://code.google.com/p/urim/
+ * http://snowball.tartarus.org/
+ *
+ * Copyright 2010, Oleg Mazko
+ * http://www.mozilla.org/MPL/
+ */
+!function(e,r){"function"==typeof define&&define.amd?define(r):"object"==typeof exports?module.exports=r():r()(e.lunr)}(this,function(){return function(e){if(void 0===e)throw new Error("Lunr is not present. Please include / require Lunr before this script.");if(void 0===e.stemmerSupport)throw new Error("Lunr stemmer support is not present. Please include / require Lunr stemmer support before this script.");e.vi=function(){this.pipeline.reset(),this.pipeline.add(e.vi.stopWordFilter,e.vi.trimmer)},e.vi.wordCharacters="[A-Za-ẓ̀͐́͑̉̃̓ÂâÊêÔôĂ-ăĐ-đƠ-ơƯ-ư]",e.vi.trimmer=e.trimmerSupport.generateTrimmer(e.vi.wordCharacters),e.Pipeline.registerFunction(e.vi.trimmer,"trimmer-vi"),e.vi.stopWordFilter=e.generateStopWordFilter("là cái nhưng mà".split(" "))}});

docs/convert/index.html

@@ -1,562 +0,0 @@
-
-
-
-
-<!doctype html>
-<html lang="en" class="no-js">
-  <head>
-    
-      <meta charset="utf-8">
-      <meta name="viewport" content="width=device-width,initial-scale=1">
-      <meta http-equiv="x-ua-compatible" content="ie=edge">
-      
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-      
-        <meta name="lang:clipboard.copy" content="Copy to clipboard">
-      
-        <meta name="lang:clipboard.copied" content="Copied to clipboard">
-      
-        <meta name="lang:search.language" content="en">
-      
-        <meta name="lang:search.pipeline.stopwords" content="True">
-      
-        <meta name="lang:search.pipeline.trimmer" content="True">
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-        <meta name="lang:search.result.none" content="No matching documents">
-      
-        <meta name="lang:search.result.one" content="1 matching document">
-      
-        <meta name="lang:search.result.other" content="# matching documents">
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-      
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-      <meta name="generator" content="mkdocs-1.0.4, mkdocs-material-4.2.0">
-    
-    
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-      
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-    
-    
-      <script src="../assets/javascripts/modernizr.74668098.js"></script>
-    
-    
-      
-        <link href="https://fonts.gstatic.com" rel="preconnect" crossorigin>
-        <link rel="stylesheet" href="https://fonts.googleapis.com/css?family=Roboto:300,400,400i,700|Roboto+Mono">
-        <style>body,input{font-family:"Roboto","Helvetica Neue",Helvetica,Arial,sans-serif}code,kbd,pre{font-family:"Roboto Mono","Courier New",Courier,monospace}</style>
-      
-    
-    <link rel="stylesheet" href="../assets/fonts/material-icons.css">
-    
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-    
-      
-    
-    
-  </head>
-  
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-  
-    <svg class="md-svg">
-      <defs>
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-          <svg xmlns="http://www.w3.org/2000/svg" width="416" height="448"
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-    <input class="md-toggle" data-md-toggle="drawer" type="checkbox" id="__drawer" autocomplete="off">
-    <input class="md-toggle" data-md-toggle="search" type="checkbox" id="__search" autocomplete="off">
-    <label class="md-overlay" data-md-component="overlay" for="__drawer"></label>
-    
-      <a href="#yaml-to-json" tabindex="1" class="md-skip">
-        Skip to content
-      </a>
-    
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-    <div class="md-flex">
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-            <span class="md-header-nav__topic">
-              Yq
-            </span>
-            <span class="md-header-nav__topic">
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-  <div class="md-search__inner" role="search">
-    <form class="md-search__form" name="search">
-      <input type="text" class="md-search__input" name="query" placeholder="Search" autocapitalize="off" autocorrect="off" autocomplete="off" spellcheck="false" data-md-component="query" data-md-state="active">
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-      <button type="reset" class="md-icon md-search__icon" data-md-component="reset" tabindex="-1">
-        &#xE5CD;
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-                <h3 id="yaml-to-json">Yaml to Json<a class="headerlink" href="#yaml-to-json" title="Permanent link">&para;</a></h3>
-<p>To convert output to json, use the --tojson (or -j) flag. This is supported by all commands.</p>
-<p>Each matching yaml node will be converted to json and printed out on a separate line.</p>
-<p>Given a sample.yaml file of:</p>
-<pre><code class="yaml">b:
-  c: 2
-</code></pre>
-
-<p>then</p>
-<pre><code class="bash">yq r -j sample.yaml
-</code></pre>
-
-<p>will output</p>
-<pre><code class="json">{&quot;b&quot;:{&quot;c&quot;:2}}
-</code></pre>
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-<p>Given a sample.yaml file of:</p>
-<pre><code class="yaml">bob:
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-  c: 5
-</code></pre>
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-<p>then</p>
-<pre><code class="bash">yq r -j sample.yaml b*
-</code></pre>
-
-<p>will output</p>
-<pre><code class="json">{&quot;c&quot;:2}
-{&quot;c&quot;:5}
-</code></pre>
-
-<h3 id="json-to-yaml">Json to Yaml<a class="headerlink" href="#json-to-yaml" title="Permanent link">&para;</a></h3>
-<p>To read in json, just pass in a json file instead of yaml, it will just work :)</p>
-<p>e.g given a json file</p>
-<pre><code class="json">{&quot;a&quot;:&quot;Easy! as one two three&quot;,&quot;b&quot;:{&quot;c&quot;:2,&quot;d&quot;:[3,4]}}
-</code></pre>
-
-<p>then</p>
-<pre><code class="bash">yq r sample.json
-</code></pre>
-
-<p>will output</p>
-<pre><code class="yaml">a: Easy! as one two three
-b:
-  c: 2
-  d:
-  - 3
-  - 4
-</code></pre>
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-                
-                <pre><code>yq n &lt;path_expression&gt; &lt;new value&gt;
-</code></pre>
-
-<p>Yaml files can be created using the 'new' command. This works in the same way as the write command, but you don't pass in an existing Yaml file. Currently this does not support creating multiple documents in a single yaml file.</p>
-<p>See docs for <a href="../path_expressions/">path expression</a></p>
-<h3 id="creating-a-simple-yaml-file">Creating a simple yaml file<a class="headerlink" href="#creating-a-simple-yaml-file" title="Permanent link">&para;</a></h3>
-<pre><code class="bash">yq n b.c cat
-</code></pre>
-
-<p>will output:</p>
-<pre><code class="yaml">b:
-  c: cat
-</code></pre>
-
-<h3 id="creating-using-a-create-script">Creating using a create script<a class="headerlink" href="#creating-using-a-create-script" title="Permanent link">&para;</a></h3>
-<p>Create scripts follow the same format as the update scripts.</p>
-<p>Given a script create_instructions.yaml of:</p>
-<pre><code class="yaml">- command: update 
-  path: b.c
-  value:
-    #great 
-    things: frog # wow!
-</code></pre>
-
-<p>then</p>
-<pre><code class="bash">yq n -s create_instructions.yaml
-</code></pre>
-
-<p>will output:</p>
-<pre><code class="yaml">b:
-  c:
-    #great
-    things: frog # wow!
-</code></pre>
-
-<p>You can also pipe the instructions in:</p>
-<pre><code class="bash">cat create_instructions.yaml | yq n -s -
-</code></pre>
-                
-                  
-                
-              
-              
-                
-
-
-              
-            </article>
-          </div>
-        </div>
-      </main>
-      
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-<footer class="md-footer">
-  
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-        
-          <a href="../delete/" title="Delete" class="md-flex md-footer-nav__link md-footer-nav__link--prev" rel="prev">
-            <div class="md-flex__cell md-flex__cell--shrink">
-              <i class="md-icon md-icon--arrow-back md-footer-nav__button"></i>
-            </div>
-            <div class="md-flex__cell md-flex__cell--stretch md-footer-nav__title">
-              <span class="md-flex__ellipsis">
-                <span class="md-footer-nav__direction">
-                  Previous
-                </span>
-                Delete
-              </span>
-            </div>
-          </a>
-        
-        
-          <a href="../convert/" title="Convert" class="md-flex md-footer-nav__link md-footer-nav__link--next" rel="next">
-            <div class="md-flex__cell md-flex__cell--stretch md-footer-nav__title">
-              <span class="md-flex__ellipsis">
-                <span class="md-footer-nav__direction">
-                  Next
-                </span>
-                Convert
-              </span>
-            </div>
-            <div class="md-flex__cell md-flex__cell--shrink">
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-            </div>
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-</html>

docs/delete/index.html

@@ -1,606 +0,0 @@
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-      
-        <meta name="lang:search.pipeline.stopwords" content="True">
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-        <meta name="lang:search.result.none" content="No matching documents">
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-      
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-      
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-      <defs>
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-    viewBox="0 0 416 448" id="__github">
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-    <input class="md-toggle" data-md-toggle="search" type="checkbox" id="__search" autocomplete="off">
-    <label class="md-overlay" data-md-component="overlay" for="__drawer"></label>
-    
-      <a href="#from-stdin" tabindex="1" class="md-skip">
-        Skip to content
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-    
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-          
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-          
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-              Yq
-            </span>
-            <span class="md-header-nav__topic">
-              Delete
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-      <div class="md-flex__cell md-flex__cell--shrink">
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-    <form class="md-search__form" name="search">
-      <input type="text" class="md-search__input" name="query" placeholder="Search" autocapitalize="off" autocorrect="off" autocomplete="off" spellcheck="false" data-md-component="query" data-md-state="active">
-      <label class="md-icon md-search__icon" for="__search"></label>
-      <button type="reset" class="md-icon md-search__icon" data-md-component="reset" tabindex="-1">
-        &#xE5CD;
-      </button>
-    </form>
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-      <div class="md-search__scrollwrap" data-md-scrollfix>
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-          <div class="md-search-result__meta">
-            Type to start searching
-          </div>
-          <ol class="md-search-result__list"></ol>
-        </div>
-      </div>
-    </div>
-  </div>
-</div>
-        
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-      
-        <div class="md-flex__cell md-flex__cell--shrink">
-          <div class="md-header-nav__source">
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-  
-    <div class="md-source__icon">
-      <svg viewBox="0 0 24 24" width="24" height="24">
-        <use xlink:href="#__github" width="24" height="24"></use>
-      </svg>
-    </div>
-  
-  <div class="md-source__repository">
-    mikefarah/yq
-  </div>
-</a>
-          </div>
-        </div>
-      
-    </div>
-  </nav>
-</header>
-    
-    <div class="md-container">
-      
-        
-      
-      
-      <main class="md-main">
-        <div class="md-main__inner md-grid" data-md-component="container">
-          
-            
-              <div class="md-sidebar md-sidebar--primary" data-md-component="navigation">
-                <div class="md-sidebar__scrollwrap">
-                  <div class="md-sidebar__inner">
-                    <nav class="md-nav md-nav--primary" data-md-level="0">
-  <label class="md-nav__title md-nav__title--site" for="__drawer">
-    <a href=".." title="Yq" class="md-nav__button md-logo">
-      
-        <i class="md-icon"></i>
-      
-    </a>
-    Yq
-  </label>
-  
-    <div class="md-nav__source">
-      
-
-
-  
-
-<a href="https://github.com/mikefarah/yq/" title="Go to repository" class="md-source" data-md-source="github">
-  
-    <div class="md-source__icon">
-      <svg viewBox="0 0 24 24" width="24" height="24">
-        <use xlink:href="#__github" width="24" height="24"></use>
-      </svg>
-    </div>
-  
-  <div class="md-source__repository">
-    mikefarah/yq
-  </div>
-</a>
-    </div>
-  
-  <ul class="md-nav__list" data-md-scrollfix>
-    
-      
-      
-      
-
-
-  <li class="md-nav__item">
-    <a href=".." title="Install" class="md-nav__link">
-      Install
-    </a>
-  </li>
-
-    
-      
-      
-      
-
-
-  <li class="md-nav__item">
-    <a href="../read/" title="Read" class="md-nav__link">
-      Read
-    </a>
-  </li>
-
-    
-      
-      
-      
-
-
-  <li class="md-nav__item">
-    <a href="../path_expressions/" title="Path Expressions" class="md-nav__link">
-      Path Expressions
-    </a>
-  </li>
-
-    
-      
-      
-      
-
-
-  <li class="md-nav__item">
-    <a href="../write/" title="Write/Update" class="md-nav__link">
-      Write/Update
-    </a>
-  </li>
-
-    
-      
-      
-      
-
-
-  <li class="md-nav__item">
-    <a href="../prefix/" title="Prefix" class="md-nav__link">
-      Prefix
-    </a>
-  </li>
-
-    
-      
-      
-      
-
-  
-
-
-  <li class="md-nav__item md-nav__item--active">
-    
-    <input class="md-toggle md-nav__toggle" data-md-toggle="toc" type="checkbox" id="__toc">
-    
-    
-      <label class="md-nav__link md-nav__link--active" for="__toc">
-        Delete
-      </label>
-    
-    <a href="./" title="Delete" class="md-nav__link md-nav__link--active">
-      Delete
-    </a>
-    
-      
-<nav class="md-nav md-nav--secondary">
-  
-  
-  
-    <label class="md-nav__title" for="__toc">Table of contents</label>
-    <ul class="md-nav__list" data-md-scrollfix>
-      
-        <li class="md-nav__item">
-  <a href="#from-stdin" title="From STDIN" class="md-nav__link">
-    From STDIN
-  </a>
-  
-</li>
-      
-        <li class="md-nav__item">
-  <a href="#deleting-nodes-in-place" title="Deleting nodes in-place" class="md-nav__link">
-    Deleting nodes in-place
-  </a>
-  
-</li>
-      
-        <li class="md-nav__item">
-  <a href="#multiple-documents-delete-from-single-document" title="Multiple Documents - delete from single document" class="md-nav__link">
-    Multiple Documents - delete from single document
-  </a>
-  
-</li>
-      
-        <li class="md-nav__item">
-  <a href="#multiple-documents-delete-from-all-documents" title="Multiple Documents - delete from all documents" class="md-nav__link">
-    Multiple Documents - delete from all documents
-  </a>
-  
-</li>
-      
-      
-      
-      
-      
-    </ul>
-  
-</nav>
-    
-  </li>
-
-    
-      
-      
-      
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-
-  <li class="md-nav__item">
-    <a href="../create/" title="Create" class="md-nav__link">
-      Create
-    </a>
-  </li>
-
-    
-      
-      
-      
-
-
-  <li class="md-nav__item">
-    <a href="../convert/" title="Convert" class="md-nav__link">
-      Convert
-    </a>
-  </li>
-
-    
-      
-      
-      
-
-
-  <li class="md-nav__item">
-    <a href="../merge/" title="Merge" class="md-nav__link">
-      Merge
-    </a>
-  </li>
-
-    
-  </ul>
-</nav>
-                  </div>
-                </div>
-              </div>
-            
-            
-              <div class="md-sidebar md-sidebar--secondary" data-md-component="toc">
-                <div class="md-sidebar__scrollwrap">
-                  <div class="md-sidebar__inner">
-                    
-<nav class="md-nav md-nav--secondary">
-  
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-    <label class="md-nav__title" for="__toc">Table of contents</label>
-    <ul class="md-nav__list" data-md-scrollfix>
-      
-        <li class="md-nav__item">
-  <a href="#from-stdin" title="From STDIN" class="md-nav__link">
-    From STDIN
-  </a>
-  
-</li>
-      
-        <li class="md-nav__item">
-  <a href="#deleting-nodes-in-place" title="Deleting nodes in-place" class="md-nav__link">
-    Deleting nodes in-place
-  </a>
-  
-</li>
-      
-        <li class="md-nav__item">
-  <a href="#multiple-documents-delete-from-single-document" title="Multiple Documents - delete from single document" class="md-nav__link">
-    Multiple Documents - delete from single document
-  </a>
-  
-</li>
-      
-        <li class="md-nav__item">
-  <a href="#multiple-documents-delete-from-all-documents" title="Multiple Documents - delete from all documents" class="md-nav__link">
-    Multiple Documents - delete from all documents
-  </a>
-  
-</li>
-      
-      
-      
-      
-      
-    </ul>
-  
-</nav>
-                  </div>
-                </div>
-              </div>
-            
-          
-          <div class="md-content">
-            <article class="md-content__inner md-typeset">
-              
-                
-                  <a href="https://github.com/mikefarah/yq/edit/master/docs/delete.md" title="Edit this page" class="md-icon md-content__icon">&#xE3C9;</a>
-                
-                
-                  <h1>Delete</h1>
-                
-                <pre><code>yq delete &lt;yaml_file|-&gt; &lt;path_expression&gt;
-</code></pre>
-
-<p>The delete command will delete all the matching nodes for the path expression in the given yaml input.</p>
-<p>See docs for <a href="../path_expressions/">path expression</a> for more details.</p>
-<h3 id="from-stdin">From STDIN<a class="headerlink" href="#from-stdin" title="Permanent link">&para;</a></h3>
-<p>Use "-" (without quotes) inplace of a file name if you wish to pipe in input from STDIN.</p>
-<pre><code class="bash">cat sample.yaml | yq d - b.c
-</code></pre>
-
-<h3 id="deleting-nodes-in-place">Deleting nodes in-place<a class="headerlink" href="#deleting-nodes-in-place" title="Permanent link">&para;</a></h3>
-<p>Given a sample.yaml file of:</p>
-<pre><code class="yaml">b:
-  c: 2
-  apples: green
-</code></pre>
-
-<p>then</p>
-<pre><code class="bash">yq d -i sample.yaml b.c
-</code></pre>
-
-<p>will update the sample.yaml file so that the 'c' node is deleted</p>
-<h3 id="multiple-documents-delete-from-single-document">Multiple Documents - delete from single document<a class="headerlink" href="#multiple-documents-delete-from-single-document" title="Permanent link">&para;</a></h3>
-<p>Given a sample.yaml file of:</p>
-<pre><code class="yaml">something: else
-field: leaveMe
----
-b:
-  c: 2
-field: deleteMe
-</code></pre>
-
-<p>then</p>
-<pre><code class="bash">yq w -d1 sample.yaml field
-</code></pre>
-
-<p>will output:</p>
-<pre><code class="yaml">something: else
-field: leaveMe
----
-b:
-  c: 2
-</code></pre>
-
-<h3 id="multiple-documents-delete-from-all-documents">Multiple Documents - delete from all documents<a class="headerlink" href="#multiple-documents-delete-from-all-documents" title="Permanent link">&para;</a></h3>
-<p>Given a sample.yaml file of:</p>
-<pre><code class="yaml">something: else
-field: deleteMe
----
-b:
-  c: 2
-field: deleteMeToo
-</code></pre>
-
-<p>then</p>
-<pre><code class="bash">yq w -d'*' sample.yaml field
-</code></pre>
-
-<p>will output:</p>
-<pre><code class="yaml">something: else
----
-b:
-  c: 2
-</code></pre>
-
-<p>Note that '*' is in quotes to avoid being interpreted by your shell.</p>
-                
-                  
-                
-              
-              
-                
-
-
-              
-            </article>
-          </div>
-        </div>
-      </main>
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-<footer class="md-footer">
-  
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-      <nav class="md-footer-nav__inner md-grid">
-        
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-                  Previous
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-        <a href="https://www.mkdocs.org">MkDocs</a>
-        and
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-          Material for MkDocs</a>
-      </div>
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-      
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-  </body>
-</html>

docs/index.html

@@ -32,7 +32,7 @@
         <meta name="lang:search.tokenizer" content="[\s\-]+">
       
       <link rel="shortcut icon" href="assets/images/favicon.png">
-      <meta name="generator" content="mkdocs-1.0.4, mkdocs-material-4.2.0">
+      <meta name="generator" content="mkdocs-1.0.4, mkdocs-material-4.6.0">
     
     
       
@@ -40,17 +40,17 @@
       
     
     
-      <link rel="stylesheet" href="assets/stylesheets/application.750b69bd.css">
+      <link rel="stylesheet" href="assets/stylesheets/application.1b62728e.css">
       
       
     
     
-      <script src="assets/javascripts/modernizr.74668098.js"></script>
+      <script src="assets/javascripts/modernizr.268332fc.js"></script>
     
     
       
         <link href="https://fonts.gstatic.com" rel="preconnect" crossorigin>
-        <link rel="stylesheet" href="https://fonts.googleapis.com/css?family=Roboto:300,400,400i,700|Roboto+Mono">
+        <link rel="stylesheet" href="https://fonts.googleapis.com/css?family=Roboto:300,400,400i,700%7CRoboto+Mono&display=fallback">
         <style>body,input{font-family:"Roboto","Helvetica Neue",Helvetica,Arial,sans-serif}code,kbd,pre{font-family:"Roboto Mono","Courier New",Courier,monospace}</style>
       
     
@@ -69,24 +69,7 @@
       <defs>
         
         
-          <svg xmlns="http://www.w3.org/2000/svg" width="416" height="448"
-    viewBox="0 0 416 448" id="__github">
-  <path fill="currentColor" d="M160 304q0 10-3.125 20.5t-10.75 19-18.125
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-        18.125 8.5 10.75 19 3.125 20.5zM320 304q0 10-3.125 20.5t-10.75
-        19-18.125 8.5-18.125-8.5-10.75-19-3.125-20.5 3.125-20.5 10.75-19
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-        99.5z" />
-</svg>
+          <svg xmlns="http://www.w3.org/2000/svg" width="416" height="448" viewBox="0 0 416 448" id="__github"><path fill="currentColor" d="M160 304q0 10-3.125 20.5t-10.75 19T128 352t-18.125-8.5-10.75-19T96 304t3.125-20.5 10.75-19T128 256t18.125 8.5 10.75 19T160 304zm160 0q0 10-3.125 20.5t-10.75 19T288 352t-18.125-8.5-10.75-19T256 304t3.125-20.5 10.75-19T288 256t18.125 8.5 10.75 19T320 304zm40 0q0-30-17.25-51T296 232q-10.25 0-48.75 5.25Q229.5 240 208 240t-39.25-2.75Q130.75 232 120 232q-29.5 0-46.75 21T56 304q0 22 8 38.375t20.25 25.75 30.5 15 35 7.375 37.25 1.75h42q20.5 0 37.25-1.75t35-7.375 30.5-15 20.25-25.75T360 304zm56-44q0 51.75-15.25 82.75-9.5 19.25-26.375 33.25t-35.25 21.5-42.5 11.875-42.875 5.5T212 416q-19.5 0-35.5-.75t-36.875-3.125-38.125-7.5-34.25-12.875T37 371.5t-21.5-28.75Q0 312 0 260q0-59.25 34-99-6.75-20.5-6.75-42.5 0-29 12.75-54.5 27 0 47.5 9.875t47.25 30.875Q171.5 96 212 96q37 0 70 8 26.25-20.5 46.75-30.25T376 64q12.75 25.5 12.75 54.5 0 21.75-6.75 42 34 40 34 99.5z"/></svg>
         
       </defs>
     </svg>
@@ -94,7 +77,7 @@
     <input class="md-toggle" data-md-toggle="search" type="checkbox" id="__search" autocomplete="off">
     <label class="md-overlay" data-md-component="overlay" for="__drawer"></label>
     
-      <a href="#yq" tabindex="1" class="md-skip">
+      <a href="#new-documentation-website" tabindex="1" class="md-skip">
         Skip to content
       </a>
     
@@ -118,9 +101,7 @@
             <span class="md-header-nav__topic">
               Yq
             </span>
-            <span class="md-header-nav__topic">
-              Install
-            </span>
+
           
         </div>
       </div>
@@ -128,28 +109,6 @@
         
           <label class="md-icon md-icon--search md-header-nav__button" for="__search"></label>
           
-<div class="md-search" data-md-component="search" role="dialog">
-  <label class="md-search__overlay" for="__search"></label>
-  <div class="md-search__inner" role="search">
-    <form class="md-search__form" name="search">
-      <input type="text" class="md-search__input" name="query" placeholder="Search" autocapitalize="off" autocorrect="off" autocomplete="off" spellcheck="false" data-md-component="query" data-md-state="active">
-      <label class="md-icon md-search__icon" for="__search"></label>
-      <button type="reset" class="md-icon md-search__icon" data-md-component="reset" tabindex="-1">
-        &#xE5CD;
-      </button>
-    </form>
-    <div class="md-search__output">
-      <div class="md-search__scrollwrap" data-md-scrollfix>
-        <div class="md-search-result" data-md-component="result">
-          <div class="md-search-result__meta">
-            Type to start searching
-          </div>
-          <ol class="md-search-result__list"></ol>
-        </div>
-      </div>
-    </div>
-  </div>
-</div>
         
       </div>
       
@@ -184,263 +143,25 @@
         
       
       
-      <main class="md-main">
+      <main class="md-main" role="main">
         <div class="md-main__inner md-grid" data-md-component="container">
           
             
-              <div class="md-sidebar md-sidebar--primary" data-md-component="navigation">
-                <div class="md-sidebar__scrollwrap">
-                  <div class="md-sidebar__inner">
-                    <nav class="md-nav md-nav--primary" data-md-level="0">
-  <label class="md-nav__title md-nav__title--site" for="__drawer">
-    <a href="." title="Yq" class="md-nav__button md-logo">
-      
-        <i class="md-icon"></i>
-      
-    </a>
-    Yq
-  </label>
-  
-    <div class="md-nav__source">
-      
-
-
-  
-
-<a href="https://github.com/mikefarah/yq/" title="Go to repository" class="md-source" data-md-source="github">
-  
-    <div class="md-source__icon">
-      <svg viewBox="0 0 24 24" width="24" height="24">
-        <use xlink:href="#__github" width="24" height="24"></use>
-      </svg>
-    </div>
-  
-  <div class="md-source__repository">
-    mikefarah/yq
-  </div>
-</a>
-    </div>
-  
-  <ul class="md-nav__list" data-md-scrollfix>
-    
-      
-      
-      
-
-  
-
-
-  <li class="md-nav__item md-nav__item--active">
-    
-    <input class="md-toggle md-nav__toggle" data-md-toggle="toc" type="checkbox" id="__toc">
-    
-      
-    
-    
-      <label class="md-nav__link md-nav__link--active" for="__toc">
-        Install
-      </label>
-    
-    <a href="." title="Install" class="md-nav__link md-nav__link--active">
-      Install
-    </a>
-    
-      
-<nav class="md-nav md-nav--secondary">
-  
-  
-    
-  
-  
-    <label class="md-nav__title" for="__toc">Table of contents</label>
-    <ul class="md-nav__list" data-md-scrollfix>
-      
-        <li class="md-nav__item">
-  <a href="#install" title="Install" class="md-nav__link">
-    Install
-  </a>
-  
-</li>
-      
-      
-      
-      
-      
-    </ul>
-  
-</nav>
-    
-  </li>
-
-    
-      
-      
-      
-
-
-  <li class="md-nav__item">
-    <a href="read/" title="Read" class="md-nav__link">
-      Read
-    </a>
-  </li>
-
-    
-      
-      
-      
-
-
-  <li class="md-nav__item">
-    <a href="path_expressions/" title="Path Expressions" class="md-nav__link">
-      Path Expressions
-    </a>
-  </li>
-
-    
-      
-      
-      
-
-
-  <li class="md-nav__item">
-    <a href="write/" title="Write/Update" class="md-nav__link">
-      Write/Update
-    </a>
-  </li>
-
-    
-      
-      
-      
-
-
-  <li class="md-nav__item">
-    <a href="prefix/" title="Prefix" class="md-nav__link">
-      Prefix
-    </a>
-  </li>
-
-    
-      
-      
-      
-
-
-  <li class="md-nav__item">
-    <a href="delete/" title="Delete" class="md-nav__link">
-      Delete
-    </a>
-  </li>
-
-    
-      
-      
-      
-
-
-  <li class="md-nav__item">
-    <a href="create/" title="Create" class="md-nav__link">
-      Create
-    </a>
-  </li>
-
-    
-      
-      
-      
-
-
-  <li class="md-nav__item">
-    <a href="convert/" title="Convert" class="md-nav__link">
-      Convert
-    </a>
-  </li>
-
-    
-      
-      
-      
-
-
-  <li class="md-nav__item">
-    <a href="merge/" title="Merge" class="md-nav__link">
-      Merge
-    </a>
-  </li>
-
-    
-  </ul>
-</nav>
-                  </div>
-                </div>
-              </div>
-            
-            
-              <div class="md-sidebar md-sidebar--secondary" data-md-component="toc">
-                <div class="md-sidebar__scrollwrap">
-                  <div class="md-sidebar__inner">
-                    
-<nav class="md-nav md-nav--secondary">
-  
-  
-    
-  
-  
-    <label class="md-nav__title" for="__toc">Table of contents</label>
-    <ul class="md-nav__list" data-md-scrollfix>
-      
-        <li class="md-nav__item">
-  <a href="#install" title="Install" class="md-nav__link">
-    Install
-  </a>
-  
-</li>
-      
-      
-      
-      
-      
-    </ul>
-  
-</nav>
-                  </div>
-                </div>
-              </div>
+       
             
           
           <div class="md-content">
             <article class="md-content__inner md-typeset">
               
                 
-                  <a href="https://github.com/mikefarah/yq/edit/master/docs/index.md" title="Edit this page" class="md-icon md-content__icon">&#xE3C9;</a>
                 
+                  <h1>New documentation website</h1>
                 
-                <h1 id="yq">yq<a class="headerlink" href="#yq" title="Permanent link">&para;</a></h1>
-<p>yq is a lightweight and portable command-line YAML processor</p>
-<p>The aim of the project is to be the <a href="https://github.com/stedolan/jq">jq</a> or sed of yaml files.</p>
-<h2 id="install">Install<a class="headerlink" href="#install" title="Permanent link">&para;</a></h2>
-<p>On MacOS:</p>
-<pre><code>brew install yq
-</code></pre>
-
-<p>On Ubuntu and other Linux distros supporting <code>snap</code> packages:</p>
-<pre><code>snap install yq
-</code></pre>
-
-<p>On Ubuntu 16.04 or higher from Debian package:</p>
-<pre><code>sudo add-apt-repository ppa:rmescandon/yq
-sudo apt update
-sudo apt install yq -y
-</code></pre>
-
-<p>or, <a href="https://github.com/mikefarah/yq/releases/latest">Download latest binary</a> or alternatively:</p>
-<pre><code>GO111MODULE=on go get github.com/mikefarah/yq/v3
-</code></pre>
-
-<p><a href="https://github.com/mikefarah/yq">View on GitHub</a></p>
+<p>User docs are better than ever, and have been <a href="https://mikefarah.gitbook.io/yq">moved here</a></p>
                 
                   
                 
+                
               
               
                 
@@ -455,27 +176,6 @@ sudo apt install yq -y
         
 <footer class="md-footer">
   
-    <div class="md-footer-nav">
-      <nav class="md-footer-nav__inner md-grid">
-        
-        
-          <a href="read/" title="Read" class="md-flex md-footer-nav__link md-footer-nav__link--next" rel="next">
-            <div class="md-flex__cell md-flex__cell--stretch md-footer-nav__title">
-              <span class="md-flex__ellipsis">
-                <span class="md-footer-nav__direction">
-                  Next
-                </span>
-                Read
-              </span>
-            </div>
-            <div class="md-flex__cell md-flex__cell--shrink">
-              <i class="md-icon md-icon--arrow-forward md-footer-nav__button"></i>
-            </div>
-          </a>
-        
-      </nav>
-    </div>
-  
   <div class="md-footer-meta md-typeset">
     <div class="md-footer-meta__inner md-grid">
       <div class="md-footer-copyright">
@@ -487,22 +187,13 @@ sudo apt install yq -y
           Material for MkDocs</a>
       </div>
       
-  <div class="md-footer-social">
-    <link rel="stylesheet" href="assets/fonts/font-awesome.css">
-    
-      <a href="https://github.com/mikefarah" class="md-footer-social__link fa fa-github"></a>
-    
-      <a href="https://www.linkedin.com/in/mike-farah-b5a75b2/" class="md-footer-social__link fa fa-linkedin"></a>
-    
-  </div>
-
     </div>
   </div>
 </footer>
       
     </div>
     
-      <script src="assets/javascripts/application.39abc4af.js"></script>
+      <script src="assets/javascripts/application.808e90bb.js"></script>
       
       <script>app.initialize({version:"1.0.4",url:{base:"."}})</script>
       

docs/merge/index.html

@@ -1,741 +0,0 @@
-
-
-
-
-<!doctype html>
-<html lang="en" class="no-js">
-  <head>
-    
-      <meta charset="utf-8">
-      <meta name="viewport" content="width=device-width,initial-scale=1">
-      <meta http-equiv="x-ua-compatible" content="ie=edge">
-      
-      
-      
-      
-        <meta name="lang:clipboard.copy" content="Copy to clipboard">
-      
-        <meta name="lang:clipboard.copied" content="Copied to clipboard">
-      
-        <meta name="lang:search.language" content="en">
-      
-        <meta name="lang:search.pipeline.stopwords" content="True">
-      
-        <meta name="lang:search.pipeline.trimmer" content="True">
-      
-        <meta name="lang:search.result.none" content="No matching documents">
-      
-        <meta name="lang:search.result.one" content="1 matching document">
-      
-        <meta name="lang:search.result.other" content="# matching documents">
-      
-        <meta name="lang:search.tokenizer" content="[\s\-]+">
-      
-      <link rel="shortcut icon" href="../assets/images/favicon.png">
-      <meta name="generator" content="mkdocs-1.0.4, mkdocs-material-4.2.0">
-    
-    
-      
-        <title>Merge - Yq</title>
-      
-    
-    
-      <link rel="stylesheet" href="../assets/stylesheets/application.750b69bd.css">
-      
-      
-    
-    
-      <script src="../assets/javascripts/modernizr.74668098.js"></script>
-    
-    
-      
-        <link href="https://fonts.gstatic.com" rel="preconnect" crossorigin>
-        <link rel="stylesheet" href="https://fonts.googleapis.com/css?family=Roboto:300,400,400i,700|Roboto+Mono">
-        <style>body,input{font-family:"Roboto","Helvetica Neue",Helvetica,Arial,sans-serif}code,kbd,pre{font-family:"Roboto Mono","Courier New",Courier,monospace}</style>
-      
-    
-    <link rel="stylesheet" href="../assets/fonts/material-icons.css">
-    
-    
-    
-      
-    
-    
-  </head>
-  
-    <body dir="ltr">
-  
-    <svg class="md-svg">
-      <defs>
-        
-        
-          <svg xmlns="http://www.w3.org/2000/svg" width="416" height="448"
-    viewBox="0 0 416 448" id="__github">
-  <path fill="currentColor" d="M160 304q0 10-3.125 20.5t-10.75 19-18.125
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-        99.5z" />
-</svg>
-        
-      </defs>
-    </svg>
-    <input class="md-toggle" data-md-toggle="drawer" type="checkbox" id="__drawer" autocomplete="off">
-    <input class="md-toggle" data-md-toggle="search" type="checkbox" id="__search" autocomplete="off">
-    <label class="md-overlay" data-md-component="overlay" for="__drawer"></label>
-    
-      <a href="#to-stdout" tabindex="1" class="md-skip">
-        Skip to content
-      </a>
-    
-    
-      <header class="md-header" data-md-component="header">
-  <nav class="md-header-nav md-grid">
-    <div class="md-flex">
-      <div class="md-flex__cell md-flex__cell--shrink">
-        <a href=".." title="Yq" class="md-header-nav__button md-logo">
-          
-            <i class="md-icon"></i>
-          
-        </a>
-      </div>
-      <div class="md-flex__cell md-flex__cell--shrink">
-        <label class="md-icon md-icon--menu md-header-nav__button" for="__drawer"></label>
-      </div>
-      <div class="md-flex__cell md-flex__cell--stretch">
-        <div class="md-flex__ellipsis md-header-nav__title" data-md-component="title">
-          
-            <span class="md-header-nav__topic">
-              Yq
-            </span>
-            <span class="md-header-nav__topic">
-              Merge
-            </span>
-          
-        </div>
-      </div>
-      <div class="md-flex__cell md-flex__cell--shrink">
-        
-          <label class="md-icon md-icon--search md-header-nav__button" for="__search"></label>
-          
-<div class="md-search" data-md-component="search" role="dialog">
-  <label class="md-search__overlay" for="__search"></label>
-  <div class="md-search__inner" role="search">
-    <form class="md-search__form" name="search">
-      <input type="text" class="md-search__input" name="query" placeholder="Search" autocapitalize="off" autocorrect="off" autocomplete="off" spellcheck="false" data-md-component="query" data-md-state="active">
-      <label class="md-icon md-search__icon" for="__search"></label>
-      <button type="reset" class="md-icon md-search__icon" data-md-component="reset" tabindex="-1">
-        &#xE5CD;
-      </button>
-    </form>
-    <div class="md-search__output">
-      <div class="md-search__scrollwrap" data-md-scrollfix>
-        <div class="md-search-result" data-md-component="result">
-          <div class="md-search-result__meta">
-            Type to start searching
-          </div>
-          <ol class="md-search-result__list"></ol>
-        </div>
-      </div>
-    </div>
-  </div>
-</div>
-        
-      </div>
-      
-        <div class="md-flex__cell md-flex__cell--shrink">
-          <div class="md-header-nav__source">
-            
-
-
-  
-
-<a href="https://github.com/mikefarah/yq/" title="Go to repository" class="md-source" data-md-source="github">
-  
-    <div class="md-source__icon">
-      <svg viewBox="0 0 24 24" width="24" height="24">
-        <use xlink:href="#__github" width="24" height="24"></use>
-      </svg>
-    </div>
-  
-  <div class="md-source__repository">
-    mikefarah/yq
-  </div>
-</a>
-          </div>
-        </div>
-      
-    </div>
-  </nav>
-</header>
-    
-    <div class="md-container">
-      
-        
-      
-      
-      <main class="md-main">
-        <div class="md-main__inner md-grid" data-md-component="container">
-          
-            
-              <div class="md-sidebar md-sidebar--primary" data-md-component="navigation">
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-</code></pre>
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-<h3 id="to-stdout">To Stdout<a class="headerlink" href="#to-stdout" title="Permanent link">&para;</a></h3>
-<p>Given a data1.yaml file of:</p>
-<pre><code class="yaml">a: simple
-b: [1, 2]
-</code></pre>
-
-<p>and data2.yaml file of:</p>
-<pre><code class="yaml">a: other
-c:
-  test: 1
-</code></pre>
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-<p>then</p>
-<pre><code class="bash">yq m data1.yaml data2.yaml
-</code></pre>
-
-<p>will output:</p>
-<pre><code class="yaml">a: simple
-b: [1, 2]
-c:
-  test: 1
-</code></pre>
-
-<h3 id="updating-files-in-place">Updating files in-place<a class="headerlink" href="#updating-files-in-place" title="Permanent link">&para;</a></h3>
-<p>Given a data1.yaml file of:</p>
-<pre><code class="yaml">a: simple
-b: [1, 2]
-</code></pre>
-
-<p>and data2.yaml file of:</p>
-<pre><code class="yaml">a: other
-c:
-  test: 1
-</code></pre>
-
-<p>then</p>
-<pre><code class="bash">yq m -i data1.yaml data2.yaml
-</code></pre>
-
-<p>will update the data1.yaml file so that the value of 'c' is 'test: 1'.</p>
-<h3 id="overwrite-values">Overwrite values<a class="headerlink" href="#overwrite-values" title="Permanent link">&para;</a></h3>
-<p>Given a data1.yaml file of:</p>
-<pre><code class="yaml">a: simple
-b: [1, 2]
-</code></pre>
-
-<p>and data2.yaml file of:</p>
-<pre><code class="yaml">a: other
-c:
-  test: 1
-</code></pre>
-
-<p>then</p>
-<pre><code class="bash">yq m -x data1.yaml data2.yaml
-</code></pre>
-
-<p>will output:</p>
-<pre><code class="yaml">a: other
-b: [1, 2]
-c:
-  test: 1
-</code></pre>
-
-<h3 id="overwrite-values-with-arrays">Overwrite values with arrays<a class="headerlink" href="#overwrite-values-with-arrays" title="Permanent link">&para;</a></h3>
-<p>Given a data1.yaml file of:</p>
-<pre><code class="yaml">a: simple
-b: [1, 2]
-</code></pre>
-
-<p>and data3.yaml file of:</p>
-<pre><code class="yaml">b: [3, 4]
-c:
-  test: 2
-  other: true
-d: false
-</code></pre>
-
-<p>then</p>
-<pre><code class="bash">yq m -x data1.yaml data3.yaml
-</code></pre>
-
-<p>will output:</p>
-<pre><code class="yaml">a: simple
-b: [3, 4]
-c:
-  test: 2
-  other: true
-d: false
-</code></pre>
-
-<p>Notice that 'b' does not result in the merging of the values within an array. </p>
-<h3 id="append-values-with-arrays">Append values with arrays<a class="headerlink" href="#append-values-with-arrays" title="Permanent link">&para;</a></h3>
-<p>Given a data1.yaml file of:</p>
-<pre><code class="yaml">a: simple
-b: [1, 2]
-d: hi
-</code></pre>
-
-<p>and data3.yaml file of:</p>
-<pre><code class="yaml">a: something
-b: [3, 4]
-c:
-  test: 2
-  other: true
-</code></pre>
-
-<p>then</p>
-<pre><code class="bash">yq m -a data1.yaml data3.yaml
-</code></pre>
-
-<p>will output:</p>
-<pre><code class="yaml">a: simple
-b: [1, 2, 3, 4]
-c:
-  test: 2
-  other: true
-d: hi
-</code></pre>
-
-<p>Note that the 'b' array has concatenated the values from the second data file. Also note that other map keys are not overridden (field a).</p>
-<h3 id="multiple-documents-merge-into-single-document">Multiple Documents - merge into single document<a class="headerlink" href="#multiple-documents-merge-into-single-document" title="Permanent link">&para;</a></h3>
-<p>Currently yq only has multi-document support for the <em>first</em> document being merged into. The remaining yaml files will have their first document selected.</p>
-<p>Given a data1.yaml file of:</p>
-<pre><code class="yaml">something: else
----
-a: simple
-b: cat
-</code></pre>
-
-<p>and data3.yaml file of:</p>
-<pre><code class="yaml">b: dog
-</code></pre>
-
-<p>then</p>
-<pre><code class="bash">yq m -x -d1 data1.yaml data3.yaml
-</code></pre>
-
-<p>will output:</p>
-<pre><code class="yaml">something: else
----
-a: simple
-b: dog
-</code></pre>
-
-<h3 id="multiple-documents-merge-into-all-documents">Multiple Documents - merge into all documents<a class="headerlink" href="#multiple-documents-merge-into-all-documents" title="Permanent link">&para;</a></h3>
-<p>Currently yq only has multi-document support for the <em>first</em> document being merged into. The remaining yaml files will have their first document selected.</p>
-<p>Given a data1.yaml file of:</p>
-<pre><code class="yaml">something: else
----
-a: simple
-b: cat
-</code></pre>
-
-<p>and data3.yaml file of:</p>
-<pre><code class="yaml">b: dog
-</code></pre>
-
-<p>then</p>
-<pre><code class="bash">yq m -x -d'*' data1.yaml data3.yaml
-</code></pre>
-
-<p>will output:</p>
-<pre><code class="yaml">b: dog
-something: else
----
-a: simple
-b: dog
-</code></pre>
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-                
-                
-                  <h1>Path Expressions</h1>
-                
-                <p>Path expressions are used to deeply navigate and match particular yaml nodes.</p>
-<p><em>As a general rule, you should wrap paths in quotes in the CLI to prevent your interpreter from processing '*, []' and other special characters.</em></p>
-<h2 id="simple-expressions">Simple expressions<a class="headerlink" href="#simple-expressions" title="Permanent link">&para;</a></h2>
-<h3 id="maps">Maps<a class="headerlink" href="#maps" title="Permanent link">&para;</a></h3>
-<p>a.b.c</p>
-<pre><code class="yaml">a:
-  b:
-    c: thing # MATCHES
-</code></pre>
-
-<h3 id="arrays">Arrays<a class="headerlink" href="#arrays" title="Permanent link">&para;</a></h3>
-<p>a.b[1].c</p>
-<pre><code class="yaml">a:
-  b:
-  - c: thing0 
-  - c: thing1 # MATCHES
-  - c: thing2
-</code></pre>
-
-<h4 id="appending-to-arrays">Appending to arrays<a class="headerlink" href="#appending-to-arrays" title="Permanent link">&para;</a></h4>
-<p>(e.g. when using the write command)</p>
-<p>a.b[+].c</p>
-<pre><code class="yaml">a:
-  b:
-  - c: thing0 
-</code></pre>
-
-<p>Will add a new entry:</p>
-<pre><code class="yaml">a:
-  b:
-  - c: thing0 
-  - c: thing1 # NEW entry from [+] on B array.
-</code></pre>
-
-<h2 id="splat">Splat<a class="headerlink" href="#splat" title="Permanent link">&para;</a></h2>
-<h3 id="maps_1">Maps<a class="headerlink" href="#maps_1" title="Permanent link">&para;</a></h3>
-<p>a.*.c</p>
-<pre><code class="yaml">a:
-  b1:
-    c: thing # MATCHES
-  b2:
-    c: thing # MATCHES
-</code></pre>
-
-<h3 id="arrays_1">Arrays<a class="headerlink" href="#arrays_1" title="Permanent link">&para;</a></h3>
-<p>a.b[*].c</p>
-<pre><code class="yaml">a:
-  b:
-  - c: thing0 # MATCHES
-  - c: thing1 # MATCHES
-  - c: thing2 # MATCHES
-</code></pre>
-
-<h2 id="deep-splat">Deep Splat<a class="headerlink" href="#deep-splat" title="Permanent link">&para;</a></h2>
-<p>'**' will match arbitrary nodes for both maps and arrays:</p>
-<p>a.**.c</p>
-<pre><code class="yaml">a:
-  b1:
-    c: thing1 # MATCHES
-  b2:
-    c: thing2 # MATCHES
-  b3:
-    d:
-    - f:
-        c: thing3 # MATCHES
-    - f:
-        g:
-          c: thing4 # MATCHES
-</code></pre>
-
-<h2 id="finding-parents-with-particular-children-nodes">Finding parents with particular children nodes<a class="headerlink" href="#finding-parents-with-particular-children-nodes" title="Permanent link">&para;</a></h2>
-<p>a.(b.d==cat).b.c</p>
-<pre><code class="yaml">a:
-  - b:
-      c: thing0
-      d: leopard
-    ba: fast
-  - b:
-      c: thing1 # MATCHES
-      d: cat
-    ba: meowy
-  - b:
-      c: thing2
-      d: caterpillar
-    ba: icky
-  - b:
-      c: thing3 # MATCHES
-      d: cat
-    ba: also meowy
-</code></pre>
-
-<h3 id="with-prefixes">With prefixes<a class="headerlink" href="#with-prefixes" title="Permanent link">&para;</a></h3>
-<p>a.(b.d==cat*).c</p>
-<pre><code class="yaml">a:
-  - b:
-      c: thing0
-      d: leopard
-    ba: fast
-  - b:
-      c: thing1 # MATCHES
-      d: cat
-    ba: meowy
-  - b:
-      c: thing2 # MATCHES
-      d: caterpillar
-    ba: icky
-  - b:
-      c: thing3 # MATCHES
-      d: cat
-    ba: also meowy
-</code></pre>
-
-<h2 id="special-characters">Special Characters<a class="headerlink" href="#special-characters" title="Permanent link">&para;</a></h2>
-<h3 id="keys-with-dots">Keys with dots<a class="headerlink" href="#keys-with-dots" title="Permanent link">&para;</a></h3>
-<p>When specifying a key that has a dot use key lookup indicator.</p>
-<pre><code class="yaml">b:
-  foo.bar: 7
-</code></pre>
-
-<pre><code class="bash">yaml r sample.yaml 'b[foo.bar]'
-</code></pre>
-
-<pre><code class="bash">yaml w sample.yaml 'b[foo.bar]' 9
-</code></pre>
-
-<p>Any valid yaml key can be specified as part of a key lookup.</p>
-<p>Note that the path is in quotes to avoid the square brackets being interpreted by your shell.</p>
-<h3 id="keys-and-values-with-leading-dashes">Keys (and values) with leading dashes<a class="headerlink" href="#keys-and-values-with-leading-dashes" title="Permanent link">&para;</a></h3>
-<p>If a key or value has leading dashes, yq won't know that you are passing a value as opposed to a flag (and you will get a 'bad flag syntax' error).</p>
-<p>To fix that, you will need to tell it to stop processing flags by adding '--' after the last flag like so:</p>
-<pre><code class="bash">yq n -t -- --key --value
-</code></pre>
-
-<p>Will result in</p>
-<pre><code>--key: --value
-</code></pre>
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-                  <h1>Prefix</h1>
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-<p>Prefixes a yaml document with the given path expression. The complete yaml content will be nested inside the new prefix path.</p>
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-<h3 id="to-stdout">To Stdout<a class="headerlink" href="#to-stdout" title="Permanent link">&para;</a></h3>
-<p>Given a data1.yaml file of:</p>
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-<h3 id="arbitrary-depth">Arbitrary depth<a class="headerlink" href="#arbitrary-depth" title="Permanent link">&para;</a></h3>
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-
-<p>then</p>
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-</code></pre>
-
-<p>will output:</p>
-<pre><code class="yaml">c:
-  d:
-    a:
-      b: [1, 2]
-</code></pre>
-
-<h3 id="updating-files-in-place">Updating files in-place<a class="headerlink" href="#updating-files-in-place" title="Permanent link">&para;</a></h3>
-<p>Given a data1.yaml file of:</p>
-<pre><code class="yaml">a: simple
-b: [1, 2]
-</code></pre>
-
-<p>then</p>
-<pre><code class="bash">yq p -i data1.yaml c
-</code></pre>
-
-<p>will update the data1.yaml file so that the path 'c' is prefixed to all other paths.</p>
-<h3 id="multiple-documents-prefix-a-single-document">Multiple Documents - prefix a single document<a class="headerlink" href="#multiple-documents-prefix-a-single-document" title="Permanent link">&para;</a></h3>
-<p>Given a data1.yaml file of:</p>
-<pre><code class="yaml">something: else
----
-a: simple
-b: cat
-</code></pre>
-
-<p>then</p>
-<pre><code class="bash">yq p -d1 data1.yaml c
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-
-<p>will output:</p>
-<pre><code class="yaml">something: else
----
-c:
-  a: simple
-  b: cat
-</code></pre>
-
-<h3 id="multiple-documents-prefix-all-documents">Multiple Documents - prefix all documents<a class="headerlink" href="#multiple-documents-prefix-all-documents" title="Permanent link">&para;</a></h3>
-<p>Given a data1.yaml file of:</p>
-<pre><code class="yaml">something: else
----
-a: simple
-b: cat
-</code></pre>
-
-<p>then</p>
-<pre><code class="bash">yq p -d'*' data1.yaml c
-</code></pre>
-
-<p>will output:</p>
-<pre><code class="yaml">c:
-  something: else
----
-c:
-  a: simple
-  b: cat
-</code></pre>
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-                
-                <pre><code>yq r &lt;yaml_file|json_file&gt; &lt;path_expression&gt;
-</code></pre>
-
-<p>Returns the matching nodes of the path expression for the given yaml file (or STDIN).</p>
-<p>See docs for <a href="../path_expressions/">path expression</a> for more details.</p>
-<h3 id="basic">Basic<a class="headerlink" href="#basic" title="Permanent link">&para;</a></h3>
-<p>Given a sample.yaml file of:</p>
-<pre><code class="yaml">b:
-  c: 2
-</code></pre>
-
-<p>then</p>
-<pre><code class="bash">yq r sample.yaml b.c
-</code></pre>
-
-<p>will output the value of '2'.</p>
-<h3 id="from-stdin">From Stdin<a class="headerlink" href="#from-stdin" title="Permanent link">&para;</a></h3>
-<p>Given a sample.yaml file of:</p>
-<pre><code class="bash">cat sample.yaml | yq r - b.c
-</code></pre>
-
-<p>will output the value of '2'.</p>
-<h3 id="splat">Splat<a class="headerlink" href="#splat" title="Permanent link">&para;</a></h3>
-<p>Given a sample.yaml file of:</p>
-<pre><code class="yaml">---
-bob:
-  item1:
-    cats: bananas
-  item2:
-    cats: apples
-  thing:
-    cats: oranges
-</code></pre>
-
-<p>then</p>
-<pre><code class="bash">yq r sample.yaml bob.*.cats
-</code></pre>
-
-<p>will output</p>
-<pre><code class="yaml">- bananas
-- apples
-- oranges
-</code></pre>
-
-<h3 id="prefix-splat">Prefix Splat<a class="headerlink" href="#prefix-splat" title="Permanent link">&para;</a></h3>
-<p>Given a sample.yaml file of:</p>
-<pre><code class="yaml">---
-bob:
-  item1:
-    cats: bananas
-  item2:
-    cats: apples
-  thing:
-    cats: oranges
-</code></pre>
-
-<p>then</p>
-<pre><code class="bash">yq r sample.yaml bob.item*.cats
-</code></pre>
-
-<p>will output</p>
-<pre><code class="yaml">- bananas
-- apples
-</code></pre>
-
-<h3 id="multiple-documents-specify-a-single-document">Multiple Documents - specify a single document<a class="headerlink" href="#multiple-documents-specify-a-single-document" title="Permanent link">&para;</a></h3>
-<p>Given a sample.yaml file of:</p>
-<pre><code class="yaml">something: else
----
-b:
-  c: 2
-</code></pre>
-
-<p>then</p>
-<pre><code class="bash">yq r -d1 sample.yaml b.c
-</code></pre>
-
-<p>will output the value of '2'.</p>
-<h3 id="multiple-documents-read-all-documents">Multiple Documents - read all documents<a class="headerlink" href="#multiple-documents-read-all-documents" title="Permanent link">&para;</a></h3>
-<p>Reading all documents will return the result as an array. This can be converted to json using the '-j' flag if desired.</p>
-<p>Given a sample.yaml file of:</p>
-<pre><code class="yaml">name: Fred
-age: 22
----
-name: Stella
-age: 23
----
-name: Android
-age: 232
-</code></pre>
-
-<p>then</p>
-<pre><code class="bash">yq r -d'*' sample.yaml name
-</code></pre>
-
-<p>will output:</p>
-<pre><code>- Fred
-- Stella
-- Android
-</code></pre>
-
-<h3 id="arrays">Arrays<a class="headerlink" href="#arrays" title="Permanent link">&para;</a></h3>
-<p>You can give an index to access a specific element:
-e.g.: given a sample file of</p>
-<pre><code class="yaml">b:
-  e:
-    - name: fred
-      value: 3
-    - name: sam
-      value: 4
-</code></pre>
-
-<p>then</p>
-<pre><code>yq r sample.yaml 'b.e[1].name'
-</code></pre>
-
-<p>will output 'sam'</p>
-<p>Note that the path is in quotes to avoid the square brackets being interpreted by your shell.</p>
-<h3 id="array-splat">Array Splat<a class="headerlink" href="#array-splat" title="Permanent link">&para;</a></h3>
-<p>e.g.: given a sample file of</p>
-<pre><code class="yaml">b:
-  e:
-    - name: fred
-      value: 3
-    - name: sam
-      value: 4
-</code></pre>
-
-<p>then</p>
-<pre><code>yq r sample.yaml 'b.e[*].name'
-</code></pre>
-
-<p>will output:</p>
-<pre><code>- fred
-- sam
-</code></pre>
-
-<p>Note that the path is in quotes to avoid the square brackets being interpreted by your shell.</p>
-                
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-                
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-                  <h1>Write/Update</h1>
-                
-                <pre><code>yq w &lt;yaml_file&gt; &lt;path_expression&gt; &lt;new value&gt;
-</code></pre>
-
-<p>Updates all the matching nodes of path expression to the supplied value.</p>
-<p>See docs for <a href="../path_expressions/">path expression</a> for more details.</p>
-<h3 id="to-stdout">To Stdout<a class="headerlink" href="#to-stdout" title="Permanent link">&para;</a></h3>
-<p>Given a sample.yaml file of:</p>
-<pre><code class="yaml">b:
-  c: 2
-</code></pre>
-
-<p>then</p>
-<pre><code class="bash">yq w sample.yaml b.c cat
-</code></pre>
-
-<p>will output:</p>
-<pre><code class="yaml">b:
-  c: cat
-</code></pre>
-
-<h3 id="from-stdin">From STDIN<a class="headerlink" href="#from-stdin" title="Permanent link">&para;</a></h3>
-<pre><code class="bash">cat sample.yaml | yq w - b.c blah
-</code></pre>
-
-<h3 id="adding-new-fields">Adding new fields<a class="headerlink" href="#adding-new-fields" title="Permanent link">&para;</a></h3>
-<p>Any missing fields in the path will be created on the fly.</p>
-<p>Given a sample.yaml file of:</p>
-<pre><code class="yaml">b:
-  c: 2
-</code></pre>
-
-<p>then</p>
-<pre><code class="bash">yq w sample.yaml b.d[+] &quot;new thing&quot;
-</code></pre>
-
-<p>will output:</p>
-<pre><code class="yaml">b:
-  c: cat
-  d:
-    - new thing
-</code></pre>
-
-<h3 id="splat">Splat<a class="headerlink" href="#splat" title="Permanent link">&para;</a></h3>
-<p>Given a sample.yaml file of:</p>
-<pre><code class="yaml">---
-bob:
-  item1:
-    cats: bananas
-  item2:
-    cats: apples
-  thing:
-    cats: oranges
-</code></pre>
-
-<p>then</p>
-<pre><code class="bash">yq w sample.yaml bob.*.cats meow
-</code></pre>
-
-<p>will output:</p>
-<pre><code class="yaml">---
-bob:
-  item1:
-    cats: meow
-  item2:
-    cats: meow
-  thing:
-    cats: meow
-</code></pre>
-
-<h3 id="prefix-splat">Prefix Splat<a class="headerlink" href="#prefix-splat" title="Permanent link">&para;</a></h3>
-<p>Given a sample.yaml file of:</p>
-<pre><code class="yaml">---
-bob:
-  item1:
-    cats: bananas
-  item2:
-    cats: apples
-  thing:
-    cats: oranges
-</code></pre>
-
-<p>then</p>
-<pre><code class="bash">yq w sample.yaml bob.item*.cats meow
-</code></pre>
-
-<p>will output:</p>
-<pre><code class="yaml">---
-bob:
-  item1:
-    cats: meow
-  item2:
-    cats: meow
-  thing:
-    cats: oranges
-</code></pre>
-
-<h3 id="array-splat">Array Splat<a class="headerlink" href="#array-splat" title="Permanent link">&para;</a></h3>
-<p>Given a sample.yaml file of:</p>
-<pre><code class="yaml">---
-bob:
-- cats: bananas
-- cats: apples
-- cats: oranges
-</code></pre>
-
-<p>then</p>
-<pre><code class="bash">yq w sample.yaml bob[*].cats meow
-</code></pre>
-
-<p>will output:</p>
-<pre><code class="yaml">---
-bob:
-- cats: meow
-- cats: meow
-- cats: meow
-</code></pre>
-
-<h3 id="appending-value-to-an-array-field">Appending value to an array field<a class="headerlink" href="#appending-value-to-an-array-field" title="Permanent link">&para;</a></h3>
-<p>Given a sample.yaml file of:</p>
-<pre><code class="yaml">b:
-  c: 2
-  d:
-    - new thing
-    - foo thing
-</code></pre>
-
-<p>then</p>
-<pre><code class="bash">yq w sample.yaml &quot;b.d[+]&quot; &quot;bar thing&quot;
-</code></pre>
-
-<p>will output:</p>
-<pre><code class="yaml">b:
-  c: cat
-  d:
-    - new thing
-    - foo thing
-    - bar thing
-</code></pre>
-
-<p>Note that the path is in quotes to avoid the square brackets being interpreted by your shell.</p>
-<h3 id="multiple-documents-update-a-single-document">Multiple Documents - update a single document<a class="headerlink" href="#multiple-documents-update-a-single-document" title="Permanent link">&para;</a></h3>
-<p>Given a sample.yaml file of:</p>
-<pre><code class="yaml">something: else
----
-b:
-  c: 2
-</code></pre>
-
-<p>then</p>
-<pre><code class="bash">yq w -d1 sample.yaml b.c 5
-</code></pre>
-
-<p>will output:</p>
-<pre><code class="yaml">something: else
----
-b:
-  c: 5
-</code></pre>
-
-<h3 id="multiple-documents-update-all-documents">Multiple Documents - update all documents<a class="headerlink" href="#multiple-documents-update-all-documents" title="Permanent link">&para;</a></h3>
-<p>Given a sample.yaml file of:</p>
-<pre><code class="yaml">something: else
----
-b:
-  c: 2
-</code></pre>
-
-<p>then</p>
-<pre><code class="bash">yq w -d'*' sample.yaml b.c 5
-</code></pre>
-
-<p>will output:</p>
-<pre><code class="yaml">something: else
-b:
-  c: 5
----
-b:
-  c: 5
-</code></pre>
-
-<p>Note that '*' is in quotes to avoid being interpreted by your shell.</p>
-<h3 id="updating-files-in-place">Updating files in-place<a class="headerlink" href="#updating-files-in-place" title="Permanent link">&para;</a></h3>
-<p>Given a sample.yaml file of:</p>
-<pre><code class="yaml">b:
-  c: 2
-</code></pre>
-
-<p>then</p>
-<pre><code class="bash">yq w -i sample.yaml b.c cat
-</code></pre>
-
-<p>will update the sample.yaml file so that the value of 'c' is cat.</p>
-<h3 id="updating-multiple-values-with-a-script">Updating multiple values with a script<a class="headerlink" href="#updating-multiple-values-with-a-script" title="Permanent link">&para;</a></h3>
-<p>Given a sample.yaml file of:</p>
-<pre><code class="yaml">b:
-  c: 2
-  e:
-    - name: Billy Bob
-</code></pre>
-
-<p>and a script update_instructions.yaml of:</p>
-<pre><code class="yaml">b.c: 3
-b.e[+].name: Howdy Partner
-</code></pre>
-
-<p>then</p>
-<pre><code class="bash">yq w -s update_instructions.yaml sample.yaml
-</code></pre>
-
-<p>will output:</p>
-<pre><code class="yaml">b:
-  c: 3
-  e:
-    - name: Howdy Partner
-</code></pre>
-
-<p>And, of course, you can pipe the instructions in using '-':</p>
-<pre><code class="bash">cat update_instructions.yaml | yq w -s - sample.yaml
-</code></pre>
-
-<h3 id="values-starting-with-a-hyphen-or-dash">Values starting with a hyphen (or dash)<a class="headerlink" href="#values-starting-with-a-hyphen-or-dash" title="Permanent link">&para;</a></h3>
-<p>The flag terminator needs to be used to stop the app from attempting to parse the subsequent arguments as flags:</p>
-<pre><code>yq w -- my.path -3
-</code></pre>
-
-<p>will output</p>
-<pre><code class="yaml">my:
-  path: -3
-</code></pre>
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-                Path Expressions
-              </span>
-            </div>
-          </a>
-        
-        
-          <a href="../prefix/" title="Prefix" class="md-flex md-footer-nav__link md-footer-nav__link--next" rel="next">
-            <div class="md-flex__cell md-flex__cell--stretch md-footer-nav__title">
-              <span class="md-flex__ellipsis">
-                <span class="md-footer-nav__direction">
-                  Next
-                </span>
-                Prefix
-              </span>
-            </div>
-            <div class="md-flex__cell md-flex__cell--shrink">
-              <i class="md-icon md-icon--arrow-forward md-footer-nav__button"></i>
-            </div>
-          </a>
-        
-      </nav>
-    </div>
-  
-  <div class="md-footer-meta md-typeset">
-    <div class="md-footer-meta__inner md-grid">
-      <div class="md-footer-copyright">
-        
-        powered by
-        <a href="https://www.mkdocs.org">MkDocs</a>
-        and
-        <a href="https://squidfunk.github.io/mkdocs-material/">
-          Material for MkDocs</a>
-      </div>
-      
-  <div class="md-footer-social">
-    <link rel="stylesheet" href="../assets/fonts/font-awesome.css">
-    
-      <a href="https://github.com/mikefarah" class="md-footer-social__link fa fa-github"></a>
-    
-      <a href="https://www.linkedin.com/in/mike-farah-b5a75b2/" class="md-footer-social__link fa fa-linkedin"></a>
-    
-  </div>
-
-    </div>
-  </div>
-</footer>
-      
-    </div>
-    
-      <script src="../assets/javascripts/application.39abc4af.js"></script>
-      
-      <script>app.initialize({version:"1.0.4",url:{base:".."}})</script>
-      
-    
-  </body>
-</html>

examples/bad.yaml

@@ -0,0 +1,8 @@
+b:
+  d: be gone
+  c: 2
+  e:
+    - name: Billy Bob # comment over here
+
+---
+[123123

examples/data1-no-comments.yaml

@@ -0,0 +1,4 @@
+a: simple
+b: [1, 2]
+c:
+  test: 1

examples/data2.yaml

@@ -4,4 +4,4 @@ c:
   toast: leave
   test: 1
   tell: 1
-  taco: cool
+  tasty.taco: cool

examples/data3.yaml

@@ -1,14 +1,4 @@
-deep1:
-   hostA:
-      value: 1234
-   notRelevant:
-      value: bananas
-   hostB:
-      value: 5678
-deep2:
-   hostC:
-      value: 1234
-   notRelevant:
-      value: bananas
-   hostD:
-      value: 5678
+a: "simple" # just the best
+b: [1, 3]
+c:
+  test: 1