Dont unwrap json output by default

Fixes https://github.com/mikefarah/yq/issues/375

.github/ISSUE_TEMPLATE/bug_report.md

@@ -0,0 +1,45 @@
+---
+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.
+
+**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
 

README.md

@@ -1,6 +1,6 @@
 # yq
 
-[![Build Status](https://api.travis-ci.com/mikefarah/yq.svg?branch=master)](https://travis-ci.com/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)
+![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)
 
 
 a lightweight and portable command-line YAML processor
@@ -12,15 +12,13 @@ V3 is officially out - if you've been using v2 and want/need to upgrade, checkou
 
 ## Install
 
-### Download the latest binary
+### [Download the latest binary](https://github.com/mikefarah/yq/releases/latest)
 
-[Here](https://github.com/mikefarah/yq/releases/latest)
-
-### On MacOS:
+### MacOS:
 ```
 brew install yq
 ```
-### On Ubuntu and other Linux distros supporting `snap` packages:
+### Ubuntu and other Linux distros supporting `snap` packages:
 ```
 snap install yq
 ```
@@ -50,6 +48,8 @@ sudo add-apt-repository ppa:rmescandon/yq
 sudo apt update
 sudo apt install yq -y
 ```
+Supported by @rmescandon
+
 ### Go Get:
 ```
 GO111MODULE=on go get github.com/mikefarah/yq/v3
@@ -79,8 +79,10 @@ yq() {
 
 ## Features
 - Written in portable go, so you can download a lovely dependency free binary
+- [Colorize the output](https://mikefarah.gitbook.io/yq/usage/output-format#colorize-output)
 - [Deep read a yaml file with a given path expression](https://mikefarah.gitbook.io/yq/commands/read#basic)
 - [List matching paths of a given path expression](https://mikefarah.gitbook.io/yq/commands/read#path-only)
+- [Return the lengths of arrays/object/scalars](https://mikefarah.gitbook.io/yq/commands/read#printing-length-of-the-results)
 - Update a yaml file given a [path expression](https://mikefarah.gitbook.io/yq/commands/write-update#basic) or [script file](https://mikefarah.gitbook.io/yq/commands/write-update#basic)
 - Update creates any missing entries in the path on the fly
 - Deeply [compare](https://mikefarah.gitbook.io/yq/commands/compare) yaml files
@@ -114,6 +116,7 @@ Available Commands:
   write       yq w [--inplace/-i] [--script/-s script_file] [--doc/-d index] sample.yaml 'b.e(name==fr*).value' newValue
 
 Flags:
+  -C, --colors        print using colors
   -h, --help          help for yq
   -I, --indent int    sets indent level for output (default 2)
   -P, --prettyPrint   pretty print
@@ -123,12 +126,3 @@ Flags:
 
 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`
-7. profit

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

@@ -94,12 +94,51 @@ func TestReadCmd(t *testing.T) {
 	test.AssertResult(t, "2\n", result.Output)
 }
 
-func TestCompareCmd(t *testing.T) {
+func TestReadUnwrapCmd(t *testing.T) {
+
+	content := `b: 'frog' # my favourite`
+	filename := test.WriteTempYamlFile(content)
+	defer test.RemoveTempYamlFile(filename)
+
 	cmd := getRootCommand()
-	result := test.RunCmd(cmd, "compare ../examples/data1.yaml ../examples/data3.yaml")
+	result := test.RunCmd(cmd, fmt.Sprintf("read %s b --unwrapScalar=false", filename))
+
 	if result.Error != nil {
 		t.Error(result.Error)
 	}
+	test.AssertResult(t, "'frog' # my favourite\n", result.Output)
+}
+
+func TestReadUnwrapJsonByDefaultCmd(t *testing.T) {
+
+	content := `b: 'frog' # my favourite`
+	filename := test.WriteTempYamlFile(content)
+	defer test.RemoveTempYamlFile(filename)
+
+	cmd := getRootCommand()
+	result := test.RunCmd(cmd, fmt.Sprintf("read %s b -j", filename))
+
+	if result.Error != nil {
+		t.Error(result.Error)
+	}
+	test.AssertResult(t, "\"frog\"\n", result.Output)
+}
+
+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 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
@@ -111,6 +150,7 @@ func TestCompareCmd(t *testing.T) {
 }
 
 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 {
@@ -128,6 +168,7 @@ func TestComparePrettyCmd(t *testing.T) {
 }
 
 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 {
@@ -190,6 +231,336 @@ func TestReadArrayCmd(t *testing.T) {
 	test.AssertResult(t, "b.e.[1].name: sam\n", result.Output)
 }
 
+func TestReadArrayBackwardsCmd(t *testing.T) {
+	content := `- one
+- two
+- three`
+	filename := test.WriteTempYamlFile(content)
+	defer test.RemoveTempYamlFile(filename)
+
+	cmd := getRootCommand()
+	result := test.RunCmd(cmd, fmt.Sprintf("read -p pv %s [-1]", filename))
+	if result.Error != nil {
+		t.Error(result.Error)
+	}
+	test.AssertResult(t, "'[-1]': three\n", result.Output)
+}
+
+func TestReadArrayBackwardsNegative0Cmd(t *testing.T) {
+	content := `- one
+- two
+- three`
+	filename := test.WriteTempYamlFile(content)
+	defer test.RemoveTempYamlFile(filename)
+
+	cmd := getRootCommand()
+	result := test.RunCmd(cmd, fmt.Sprintf("read -p pv %s [-0]", filename))
+	if result.Error != nil {
+		t.Error(result.Error)
+	}
+	test.AssertResult(t, "'[0]': one\n", result.Output)
+}
+
+func TestReadArrayBackwardsPastLimitCmd(t *testing.T) {
+	content := `- one
+- two
+- three`
+	filename := test.WriteTempYamlFile(content)
+	defer test.RemoveTempYamlFile(filename)
+
+	cmd := getRootCommand()
+	result := test.RunCmd(cmd, fmt.Sprintf("read -p pv %s [-4]", filename))
+	expectedOutput := "Error reading path in document index 0: Index [-4] out of range, array size is 3"
+	test.AssertResult(t, expectedOutput, result.Error.Error())
+}
+
+func TestReadArrayLengthCmd(t *testing.T) {
+	content := `- things
+- whatever
+`
+	filename := test.WriteTempYamlFile(content)
+	defer test.RemoveTempYamlFile(filename)
+
+	cmd := getRootCommand()
+	result := test.RunCmd(cmd, fmt.Sprintf("read -l %s", filename))
+	if result.Error != nil {
+		t.Error(result.Error)
+	}
+	test.AssertResult(t, "2\n", result.Output)
+}
+
+func TestReadArrayLengthDeepCmd(t *testing.T) {
+	content := `holder: 
+- things
+- whatever
+`
+	filename := test.WriteTempYamlFile(content)
+	defer test.RemoveTempYamlFile(filename)
+
+	cmd := getRootCommand()
+	result := test.RunCmd(cmd, fmt.Sprintf("read -l %s holder", filename))
+	if result.Error != nil {
+		t.Error(result.Error)
+	}
+	test.AssertResult(t, "2\n", result.Output)
+}
+
+func TestReadArrayLengthDeepMultipleCmd(t *testing.T) {
+	content := `holderA: 
+- things
+- whatever
+skipMe:
+- yep
+holderB: 
+- other things
+- cool
+`
+	filename := test.WriteTempYamlFile(content)
+	defer test.RemoveTempYamlFile(filename)
+
+	cmd := getRootCommand()
+	result := test.RunCmd(cmd, fmt.Sprintf("read -l -c %s holder*", filename))
+	if result.Error != nil {
+		t.Error(result.Error)
+	}
+	test.AssertResult(t, "2\n", result.Output)
+}
+
+func TestReadCollectCmd(t *testing.T) {
+	content := `holderA: yep
+skipMe: not me
+holderB: me too
+`
+	filename := test.WriteTempYamlFile(content)
+	defer test.RemoveTempYamlFile(filename)
+
+	cmd := getRootCommand()
+	result := test.RunCmd(cmd, fmt.Sprintf("read -c %s holder*", filename))
+	if result.Error != nil {
+		t.Error(result.Error)
+	}
+	expectedOutput := `- yep
+- me too
+`
+	test.AssertResult(t, expectedOutput, result.Output)
+}
+
+func TestReadCollectArrayCmd(t *testing.T) {
+	content := `- name: fred
+  value: 32
+- name: sam
+  value: 67
+- name: fernie
+  value: 103
+`
+	filename := test.WriteTempYamlFile(content)
+	defer test.RemoveTempYamlFile(filename)
+
+	cmd := getRootCommand()
+	result := test.RunCmd(cmd, fmt.Sprintf("read -c %s (name==f*)", filename))
+	if result.Error != nil {
+		t.Error(result.Error)
+	}
+	expectedOutput := `- name: fred
+  value: 32
+- name: fernie
+  value: 103
+`
+	test.AssertResult(t, expectedOutput, result.Output)
+}
+
+func TestReadArrayLengthDeepMultipleWithPathCmd(t *testing.T) {
+	content := `holderA: 
+- things
+- whatever
+holderB: 
+- other things
+- cool
+`
+	filename := test.WriteTempYamlFile(content)
+	defer test.RemoveTempYamlFile(filename)
+
+	cmd := getRootCommand()
+	result := test.RunCmd(cmd, fmt.Sprintf("read -l %s -ppv holder*", filename))
+	if result.Error != nil {
+		t.Error(result.Error)
+	}
+	test.AssertResult(t, "holderA: 2\nholderB: 2\n", result.Output)
+}
+
+func TestReadObjectLengthCmd(t *testing.T) {
+	content := `cat: meow
+dog: bark
+`
+	filename := test.WriteTempYamlFile(content)
+	defer test.RemoveTempYamlFile(filename)
+
+	cmd := getRootCommand()
+	result := test.RunCmd(cmd, fmt.Sprintf("read -l %s", filename))
+	if result.Error != nil {
+		t.Error(result.Error)
+	}
+	test.AssertResult(t, "2\n", result.Output)
+}
+
+func TestReadObjectLengthDeepCmd(t *testing.T) {
+	content := `holder: 
+  cat: meow
+  dog: bark
+`
+	filename := test.WriteTempYamlFile(content)
+	defer test.RemoveTempYamlFile(filename)
+
+	cmd := getRootCommand()
+	result := test.RunCmd(cmd, fmt.Sprintf("read -l %s holder", filename))
+	if result.Error != nil {
+		t.Error(result.Error)
+	}
+	test.AssertResult(t, "2\n", result.Output)
+}
+
+func TestReadObjectLengthDeepMultipleCmd(t *testing.T) {
+	content := `holderA: 
+  cat: meow
+  dog: bark
+holderB: 
+  elephant: meow
+  zebra: bark
+`
+	filename := test.WriteTempYamlFile(content)
+	defer test.RemoveTempYamlFile(filename)
+
+	cmd := getRootCommand()
+	result := test.RunCmd(cmd, fmt.Sprintf("read -l -c %s holder*", filename))
+	if result.Error != nil {
+		t.Error(result.Error)
+	}
+	test.AssertResult(t, "2\n", result.Output)
+}
+
+func TestReadObjectLengthDeepMultipleWithPathsCmd(t *testing.T) {
+	content := `holderA: 
+  cat: meow
+  dog: bark
+holderB: 
+  elephant: meow
+  zebra: bark
+`
+	filename := test.WriteTempYamlFile(content)
+	defer test.RemoveTempYamlFile(filename)
+
+	cmd := getRootCommand()
+	result := test.RunCmd(cmd, fmt.Sprintf("read -l -ppv %s holder*", filename))
+	if result.Error != nil {
+		t.Error(result.Error)
+	}
+	test.AssertResult(t, "holderA: 2\nholderB: 2\n", result.Output)
+}
+
+func TestReadScalarLengthCmd(t *testing.T) {
+	content := `meow`
+	filename := test.WriteTempYamlFile(content)
+	defer test.RemoveTempYamlFile(filename)
+
+	cmd := getRootCommand()
+	result := test.RunCmd(cmd, fmt.Sprintf("read -l %s", filename))
+	if result.Error != nil {
+		t.Error(result.Error)
+	}
+	test.AssertResult(t, "4\n", result.Output)
+}
+
+func TestReadDoubleQuotedStringCmd(t *testing.T) {
+	content := `name: "meow face"`
+	filename := test.WriteTempYamlFile(content)
+	defer test.RemoveTempYamlFile(filename)
+
+	cmd := getRootCommand()
+	result := test.RunCmd(cmd, fmt.Sprintf("read %s name", filename))
+	if result.Error != nil {
+		t.Error(result.Error)
+	}
+	test.AssertResult(t, "meow face\n", result.Output)
+}
+
+func TestReadSingleQuotedStringCmd(t *testing.T) {
+	content := `name: 'meow face'`
+	filename := test.WriteTempYamlFile(content)
+	defer test.RemoveTempYamlFile(filename)
+
+	cmd := getRootCommand()
+	result := test.RunCmd(cmd, fmt.Sprintf("read %s name", filename))
+	if result.Error != nil {
+		t.Error(result.Error)
+	}
+	test.AssertResult(t, "meow face\n", result.Output)
+}
+
+func TestReadQuotedMultinlineStringCmd(t *testing.T) {
+	content := `test: |
+  abcdefg    
+  hijklmno
+`
+	filename := test.WriteTempYamlFile(content)
+	defer test.RemoveTempYamlFile(filename)
+
+	cmd := getRootCommand()
+	result := test.RunCmd(cmd, fmt.Sprintf("read %s test", filename))
+	if result.Error != nil {
+		t.Error(result.Error)
+	}
+	expectedOutput := `abcdefg    
+hijklmno
+
+`
+	test.AssertResult(t, expectedOutput, result.Output)
+}
+
+func TestReadQuotedMultinlineNoNewLineStringCmd(t *testing.T) {
+	content := `test: |-
+  abcdefg    
+  hijklmno
+`
+	filename := test.WriteTempYamlFile(content)
+	defer test.RemoveTempYamlFile(filename)
+
+	cmd := getRootCommand()
+	result := test.RunCmd(cmd, fmt.Sprintf("read %s test", filename))
+	if result.Error != nil {
+		t.Error(result.Error)
+	}
+	expectedOutput := `abcdefg    
+hijklmno
+`
+	test.AssertResult(t, expectedOutput, result.Output)
+}
+
+func TestReadBooleanCmd(t *testing.T) {
+	content := `name: true`
+	filename := test.WriteTempYamlFile(content)
+	defer test.RemoveTempYamlFile(filename)
+
+	cmd := getRootCommand()
+	result := test.RunCmd(cmd, fmt.Sprintf("read %s name", filename))
+	if result.Error != nil {
+		t.Error(result.Error)
+	}
+	test.AssertResult(t, "true\n", result.Output)
+}
+
+func TestReadNumberCmd(t *testing.T) {
+	content := `name: 32.13`
+	filename := test.WriteTempYamlFile(content)
+	defer test.RemoveTempYamlFile(filename)
+
+	cmd := getRootCommand()
+	result := test.RunCmd(cmd, fmt.Sprintf("read %s name", filename))
+	if result.Error != nil {
+		t.Error(result.Error)
+	}
+	test.AssertResult(t, "32.13\n", result.Output)
+}
+
 func TestReadDeepSplatCmd(t *testing.T) {
 	cmd := getRootCommand()
 	result := test.RunCmd(cmd, "read -p pv ../examples/sample.yaml b.**")
@@ -1809,6 +2180,75 @@ func TestDeleteYamlArrayCmd(t *testing.T) {
 	test.AssertResult(t, expectedOutput, result.Output)
 }
 
+func TestReadExpression(t *testing.T) {
+	content := `name: value`
+	filename := test.WriteTempYamlFile(content)
+	defer test.RemoveTempYamlFile(filename)
+	cmd := getRootCommand()
+	result := test.RunCmd(cmd, fmt.Sprintf("r %s (x==f)", filename))
+	if result.Error != nil {
+		t.Error(result.Error)
+	}
+
+	expectedOutput := ``
+	test.AssertResult(t, expectedOutput, result.Output)
+}
+
+func TestReadFindValueArrayCmd(t *testing.T) {
+	content := `- cat
+- dog
+- rat
+`
+	filename := test.WriteTempYamlFile(content)
+	defer test.RemoveTempYamlFile(filename)
+	cmd := getRootCommand()
+	result := test.RunCmd(cmd, fmt.Sprintf("r %s (.==dog)", filename))
+	if result.Error != nil {
+		t.Error(result.Error)
+	}
+
+	expectedOutput := `dog
+`
+	test.AssertResult(t, expectedOutput, result.Output)
+}
+
+func TestReadFindValueDeepArrayCmd(t *testing.T) {
+	content := `animals:
+  - cat
+  - dog
+  - rat
+`
+	filename := test.WriteTempYamlFile(content)
+	defer test.RemoveTempYamlFile(filename)
+	cmd := getRootCommand()
+	result := test.RunCmd(cmd, fmt.Sprintf("r %s animals(.==dog)", filename))
+	if result.Error != nil {
+		t.Error(result.Error)
+	}
+
+	expectedOutput := `dog
+`
+	test.AssertResult(t, expectedOutput, result.Output)
+}
+
+func TestReadFindValueDeepObjectCmd(t *testing.T) {
+	content := `animals:
+  great: yes
+  small: sometimes
+`
+	filename := test.WriteTempYamlFile(content)
+	defer test.RemoveTempYamlFile(filename)
+	cmd := getRootCommand()
+	result := test.RunCmd(cmd, fmt.Sprintf("r %s animals(.==yes) -ppv", filename))
+	if result.Error != nil {
+		t.Error(result.Error)
+	}
+
+	expectedOutput := `animals.great: yes
+`
+	test.AssertResult(t, expectedOutput, result.Output)
+}
+
 func TestDeleteYamlArrayExpressionCmd(t *testing.T) {
 	content := `- name: fred
 - name: cat

cmd/compare.go

@@ -3,6 +3,7 @@ package cmd
 import (
 	"bufio"
 	"bytes"
+	"os"
 	"strings"
 
 	"github.com/kylelemons/godebug/diff"
@@ -11,6 +12,9 @@ import (
 	"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]",
@@ -70,7 +74,14 @@ func compareDocuments(cmd *cobra.Command, args []string) error {
 		return errorDoingThings
 	}
 
-	cmd.Print(diff.Diff(strings.TrimSuffix(dataBufferA.String(), "\n"), strings.TrimSuffix(dataBufferB.String(), "\n")))
-	cmd.Print("\n")
+	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/constant.go

@@ -7,12 +7,16 @@ import (
 
 var customTag = ""
 var printMode = "v"
+var printLength = false
+var unwrapScalar = true
+var collectIntoArray = false
 var writeInplace = false
 var writeScript = ""
 var sourceYamlFile = ""
 var outputToJSON = false
 var prettyPrint = false
 var explodeAnchors = false
+var colorsEnabled = false
 var defaultValue = ""
 var indent = 2
 var overwriteFlag = false

cmd/new.go

@@ -1,8 +1,8 @@
 package cmd
 
 import (
+	"github.com/mikefarah/yq/v3/pkg/yqlib"
 	"github.com/spf13/cobra"
-	yaml "gopkg.in/yaml.v3"
 )
 
 func createNewCmd() *cobra.Command {
@@ -46,9 +46,6 @@ func newProperty(cmd *cobra.Command, args []string) error {
 		}
 	}
 
-	var encoder = yaml.NewEncoder(cmd.OutOrStdout())
-	encoder.SetIndent(2)
-	errorEncoding := encoder.Encode(&newNode)
-	encoder.Close()
-	return errorEncoding
+	var encoder = yqlib.NewYamlEncoder(cmd.OutOrStdout(), indent, colorsEnabled)
+	return encoder.Encode(&newNode)
 }

cmd/read.go

@@ -26,6 +26,9 @@ yq r -- things.yaml '--key-starting-with-dashes.blah'
 	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(&explodeAnchors, "explodeAnchors", "X", false, "explode anchors")
 	return cmdRead
 }
@@ -49,6 +52,7 @@ func readProperty(cmd *cobra.Command, args []string) error {
 	if errorReadingStream != nil {
 		return errorReadingStream
 	}
+	out := cmd.OutOrStdout()
 
-	return printResults(matchingNodes, cmd.OutOrStdout())
+	return printResults(matchingNodes, out)
 }

cmd/root.go

@@ -43,6 +43,7 @@ func New() *cobra.Command {
 	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(),

cmd/utils.go

@@ -77,20 +77,39 @@ func appendDocument(originalMatchingNodes []*yqlib.NodeContext, dataBucket yaml.
 	return append(originalMatchingNodes, matchingNodes...), nil
 }
 
-func printValue(node *yaml.Node, writer io.Writer) error {
-	if node.Kind == yaml.ScalarNode {
-		_, errorWriting := writer.Write([]byte(node.Value + "\n"))
-		return errorWriting
+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
 	}
-	return printNode(node, writer)
+	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)
+		encoder = yqlib.NewYamlEncoder(writer, indent, colorsEnabled)
 	}
 	return encoder.Encode(node)
 }
@@ -160,6 +179,9 @@ func printResults(matchingNodes []*yqlib.NodeContext, writer io.Writer) error {
 		return nil
 	}
 	var errorWriting error
+
+	var arrayCollection = yaml.Node{Kind: yaml.SequenceNode}
+
 	for _, mappedDoc := range matchingNodes {
 		switch printMode {
 		case "p":
@@ -172,17 +194,27 @@ func printResults(matchingNodes []*yqlib.NodeContext, writer io.Writer) error {
 			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] = mappedDoc.Node
-			if err := printValue(&parentNode, bufferedWriter); err != nil {
+			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 err := printValue(mappedDoc.Node, bufferedWriter); err != nil {
+			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
 }
 
@@ -332,8 +364,9 @@ func readAndUpdate(stdOut io.Writer, inputFile string, updateData updateDataFn)
 	if outputToJSON {
 		encoder = yqlib.NewJsonEncoder(bufferedWriter, prettyPrint, indent)
 	} else {
-		encoder = yqlib.NewYamlEncoder(bufferedWriter, indent)
+		encoder = yqlib.NewYamlEncoder(bufferedWriter, indent, colorsEnabled)
 	}
+
 	return readStream(inputFile, mapYamlDecoder(updateData, encoder))
 }
 

cmd/version.go

@@ -11,7 +11,7 @@ var (
 	GitDescribe string
 
 	// Version is main version number that is being run at the moment.
-	Version = "3.1.2"
+	Version = "3.2.1"
 
 	// 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

debian/changelog

@@ -1,9 +1,24 @@
-yq (3.1.1) eoan; urgency=medium
+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!  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.
+  * 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

debian/compat

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

debian/control

@@ -5,9 +5,8 @@ Maintainer: Roberto Mier Escandón <rmescandon@gmail.com>
 Build-Depends: debhelper (>=10),
                dh-golang (>=1.34),
                golang-1.13,
-               dpkg-dev,
                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
@@ -17,7 +16,7 @@ XSBC-Original-Maintainer: Roberto Mier Escandón <rmescandon@gmail.com>
 Package: yq
 Architecture: any
 Depends: ${shlibs:Depends}, ${misc:Depends}
-Description: a lightweight and portable command-line YAML processor
+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.

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/files

@@ -0,0 +1 @@
+yq_3.1-2_source.buildinfo devel optional

debian/rules

@@ -40,7 +40,7 @@ override_dh_auto_build:
 	mkdir -p ${SRCDIR}
 	mkdir -p ${GOBIN}
 	# copy project to local srcdir to build from there
-	rsync -avz --progress --exclude=_build --exclude=debian --exclude=tmp. --exclude=go.mod . $(SRCDIR)
+	rsync -avz --progress --exclude=_build --exclude=debian --exclude=tmp. --exclude=go.mod --exclude=docs . $(SRCDIR)
 	# build go code
 	(cd ${SRCDIR} && go install -buildmode=pie ./...)
 	
@@ -48,8 +48,6 @@ override_dh_auto_test:
 	(cd ${SRCDIR} && go test -v ./...)
 
 override_dh_auto_install:
-	mkdir -p ${DESTDIR}/${BINDIR}
-	mkdir -p ${DESTDIR}/${ASSETSDIR}
 	cp ${GOBIN}/yq ${DESTDIR}/${BINDIR}
 	cp -f ${SRCDIR}/LICENSE ${DESTDIR}/${ASSETSDIR}
 	chmod a+x ${DESTDIR}/${BINDIR}/yq

debian/yq.dirs

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

github-action/Dockerfile

@@ -0,0 +1,5 @@
+FROM mikefarah/yq:3
+
+COPY entrypoint.sh /entrypoint.sh
+
+ENTRYPOINT ["/entrypoint.sh"]

github-action/entrypoint.sh

@@ -0,0 +1,4 @@
+#!/bin/sh -l
+
+echo "$1"
+eval $1

go.mod

@@ -1,26 +1,17 @@
 module github.com/mikefarah/yq/v3
 
 require (
-	github.com/cosiner/argv v0.0.1 // indirect
-	github.com/go-delve/delve v1.4.0 // indirect
-	github.com/konsorten/go-windows-terminal-sequences v1.0.2 // indirect
+	github.com/fatih/color v1.9.0
+	github.com/goccy/go-yaml v1.4.3
 	github.com/kylelemons/godebug v1.1.0
-	github.com/mattn/go-colorable v0.1.4 // indirect
-	github.com/mattn/go-isatty v0.0.12 // indirect
-	github.com/mattn/go-runewidth v0.0.8 // indirect
-	github.com/peterh/liner v1.2.0 // indirect
-	github.com/pkg/errors v0.8.1
-	github.com/sirupsen/logrus v1.4.2 // indirect
-	github.com/spf13/cobra v0.0.5
+	github.com/mattn/go-colorable v0.1.6 // indirect
+	github.com/pkg/errors v0.9.1
+	github.com/spf13/cobra v1.0.0
 	github.com/spf13/pflag v1.0.5 // indirect
-	go.starlark.net v0.0.0-20200203144150-6677ee5c7211 // indirect
-	golang.org/x/arch v0.0.0-20191126211547-368ea8f32fff // indirect
-	golang.org/x/crypto v0.0.0-20200210222208-86ce3cb69678 // indirect
-	golang.org/x/sys v0.0.0-20200202164722-d101bd2416d5 // indirect
-	golang.org/x/tools v0.0.0-20191213221258-04c2e8eff935 // indirect
-	gopkg.in/imdario/mergo.v0 v0.3.7 // indirect
+	golang.org/x/sys v0.0.0-20200413165638-669c56c373c4 // indirect
+	golang.org/x/xerrors v0.0.0-20191204190536-9bdfabe68543 // indirect
 	gopkg.in/op/go-logging.v1 v1.0.0-20160211212156-b2cb9fa56473
-	gopkg.in/yaml.v3 v3.0.0-20200121175148-a6ecf24a6d71
+	gopkg.in/yaml.v3 v3.0.0-20200313102051-9f266ea9e77c
 )
 
-go 1.13
+go 1.14

go.sum

@@ -1,150 +1,181 @@
+cloud.google.com/go v0.26.0/go.mod h1:aQUYkXzVsufM+DwF1aE+0xfcU+56JwCaLick0ClmMTw=
 github.com/BurntSushi/toml v0.3.1/go.mod h1:xHWCNGjB5oqiDr8zfno3MHue2Ht5sIBksp03qcyfWMU=
+github.com/OneOfOne/xxhash v1.2.2/go.mod h1:HSdplMjZKSmBqAxg5vPj2TmRDmfkzw+cTzAElWljhcU=
+github.com/alecthomas/template v0.0.0-20160405071501-a0175ee3bccc/go.mod h1:LOuyumcjzFXgccqObfd/Ljyb9UuFJ6TxHnclSeseNhc=
+github.com/alecthomas/units v0.0.0-20151022065526-2efee857e7cf/go.mod h1:ybxpYRFXyAe+OPACYpWeL0wqObRcbAqCMya13uyzqw0=
 github.com/armon/consul-api v0.0.0-20180202201655-eb2c6b5be1b6/go.mod h1:grANhF5doyWs3UAsr3K4I6qtAmlQcZDesFNEHPZAzj8=
-github.com/chzyer/logex v1.1.10/go.mod h1:+Ywpsq7O8HXn0nuIou7OrIPyXbp3wmkHB+jjWRnGsAI=
-github.com/chzyer/readline v0.0.0-20180603132655-2972be24d48e/go.mod h1:nSuG5e5PlCu98SY8svDHJxuZscDgtXS6KTTbou5AhLI=
-github.com/chzyer/test v0.0.0-20180213035817-a1ea475d72b1/go.mod h1:Q3SI9o4m/ZMnBNeIyt5eFwwo7qiLfzFZmjNmxjkiQlU=
+github.com/beorn7/perks v0.0.0-20180321164747-3a771d992973/go.mod h1:Dwedo/Wpr24TaqPxmxbtue+5NUziq4I4S80YR8gNf3Q=
+github.com/beorn7/perks v1.0.0/go.mod h1:KWe93zE9D1o94FZ5RNwFwVgaQK1VOXiVxmqh+CedLV8=
+github.com/cespare/xxhash v1.1.0/go.mod h1:XrSqR1VqqWfGrhpAt58auRo0WTKS1nRRg3ghfAqPWnc=
+github.com/client9/misspell v0.3.4/go.mod h1:qj6jICC3Q7zFZvVWo7KLAzC3yx5G7kyvSDkc90ppPyw=
+github.com/coreos/bbolt v1.3.2/go.mod h1:iRUV2dpdMOn7Bo10OQBFzIJO9kkE559Wcmn+qkEiiKk=
 github.com/coreos/etcd v3.3.10+incompatible/go.mod h1:uF7uidLiAD3TWHmW31ZFd/JWoc32PjwdhPthX9715RE=
-github.com/coreos/go-etcd v2.0.0+incompatible/go.mod h1:Jez6KQU2B/sWsbdaef3ED8NzMklzPG4d5KIOhIy30Tk=
 github.com/coreos/go-semver v0.2.0/go.mod h1:nnelYz7RCh+5ahJtPPxZlU+153eP4D4r3EedlOD2RNk=
-github.com/cosiner/argv v0.0.0-20170225145430-13bacc38a0a5 h1:rIXlvz2IWiupMFlC45cZCXZFvKX/ExBcSLrDy2G0Lp8=
-github.com/cosiner/argv v0.0.0-20170225145430-13bacc38a0a5/go.mod h1:p/NrK5tF6ICIly4qwEDsf6VDirFiWWz0FenfYBwJaKQ=
-github.com/cosiner/argv v0.0.1 h1:2iAFN+sWPktbZ4tvxm33Ei8VY66FPCxdOxpncUGpAXE=
-github.com/cosiner/argv v0.0.1/go.mod h1:p/NrK5tF6ICIly4qwEDsf6VDirFiWWz0FenfYBwJaKQ=
-github.com/cpuguy83/go-md2man v1.0.8/go.mod h1:N6JayAiVKtlHSnuTCeuLSQVs75hb8q+dYQLjr7cDsKY=
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-gopkg.in/yaml.v3 v3.0.0-20200121175148-a6ecf24a6d71 h1:Xe2gvTZUJpsvOWUnvmL/tmhVBZUmHSvLbMjRj6NUUKo=
-gopkg.in/yaml.v3 v3.0.0-20200121175148-a6ecf24a6d71/go.mod h1:K4uyk7z7BCEPqu6E+C64Yfv1cQ7kz7rIZviUmN+EgEM=
-rsc.io/pdf v0.1.1/go.mod h1:n8OzWcQ6Sp37PL01nO98y4iUCRdTGarVfzxY20ICaU4=
+gopkg.in/yaml.v3 v3.0.0-20200313102051-9f266ea9e77c h1:dUUwHk2QECo/6vqA44rthZ8ie2QXMNeKRTHCNY2nXvo=
+gopkg.in/yaml.v3 v3.0.0-20200313102051-9f266ea9e77c/go.mod h1:K4uyk7z7BCEPqu6E+C64Yfv1cQ7kz7rIZviUmN+EgEM=
+honnef.co/go/tools v0.0.0-20190102054323-c2f93a96b099/go.mod h1:rf3lG4BRIbNafJWhAfAdb/ePZxsR/4RtNHQocxwk9r4=

pkg/yqlib/color_print.go

@@ -0,0 +1,61 @@
+package yqlib
+
+import (
+	"fmt"
+	"io"
+
+	"github.com/fatih/color"
+	"github.com/goccy/go-yaml/lexer"
+	"github.com/goccy/go-yaml/printer"
+)
+
+// Thanks @risentveber!
+
+const escape = "\x1b"
+
+func format(attr color.Attribute) string {
+	return fmt.Sprintf("%s[%dm", escape, attr)
+}
+
+func ColorizeAndPrint(bytes []byte, writer io.Writer) error {
+	tokens := lexer.Tokenize(string(bytes))
+	var p printer.Printer
+	p.Bool = func() *printer.Property {
+		return &printer.Property{
+			Prefix: format(color.FgHiMagenta),
+			Suffix: format(color.Reset),
+		}
+	}
+	p.Number = func() *printer.Property {
+		return &printer.Property{
+			Prefix: format(color.FgHiMagenta),
+			Suffix: format(color.Reset),
+		}
+	}
+	p.MapKey = func() *printer.Property {
+		return &printer.Property{
+			Prefix: format(color.FgCyan),
+			Suffix: format(color.Reset),
+		}
+	}
+	p.Anchor = func() *printer.Property {
+		return &printer.Property{
+			Prefix: format(color.FgHiYellow),
+			Suffix: format(color.Reset),
+		}
+	}
+	p.Alias = func() *printer.Property {
+		return &printer.Property{
+			Prefix: format(color.FgHiYellow),
+			Suffix: format(color.Reset),
+		}
+	}
+	p.String = func() *printer.Property {
+		return &printer.Property{
+			Prefix: format(color.FgGreen),
+			Suffix: format(color.Reset),
+		}
+	}
+	_, err := writer.Write([]byte(p.PrintTokens(tokens) + "\n"))
+	return err
+}

pkg/yqlib/data_navigator.go

@@ -260,11 +260,22 @@ func (n *navigator) appendArray(value *yaml.Node, head interface{}, tail []inter
 }
 
 func (n *navigator) recurseArray(value *yaml.Node, index int64, head interface{}, tail []interface{}, pathStack []interface{}) error {
-	for int64(len(value.Content)) <= index {
+	var contentLength = int64(len(value.Content))
+	for contentLength <= index {
 		value.Content = append(value.Content, &yaml.Node{Kind: guessKind(head, tail, 0)})
+		contentLength = int64(len(value.Content))
+	}
+	var indexToUse = index
+
+	if indexToUse < 0 {
+		indexToUse = contentLength + indexToUse
 	}
 
-	value.Content[index] = n.getOrReplace(value.Content[index], guessKind(head, tail, value.Content[index].Kind))
+	if indexToUse < 0 {
+		return fmt.Errorf("Index [%v] out of range, array size is %v", index, contentLength)
+	}
 
-	return n.doTraverse(value.Content[index], head, tail, append(pathStack, index))
+	value.Content[indexToUse] = n.getOrReplace(value.Content[indexToUse], guessKind(head, tail, value.Content[indexToUse].Kind))
+
+	return n.doTraverse(value.Content[indexToUse], head, tail, append(pathStack, index))
 }

pkg/yqlib/encoder.go

@@ -1,6 +1,7 @@
 package yqlib
 
 import (
+	"bytes"
 	"encoding/json"
 	"io"
 
@@ -12,20 +13,45 @@ type Encoder interface {
 }
 
 type yamlEncoder struct {
-	encoder *yaml.Encoder
+	destination io.Writer
+	indent      int
+	colorise    bool
+	firstDoc    bool
 }
 
-func NewYamlEncoder(destination io.Writer, indent int) Encoder {
-	var encoder = yaml.NewEncoder(destination)
+func NewYamlEncoder(destination io.Writer, indent int, colorise bool) Encoder {
 	if indent < 0 {
 		indent = 0
 	}
-	encoder.SetIndent(indent)
-	return &yamlEncoder{encoder}
+	return &yamlEncoder{destination, indent, colorise, true}
 }
 
 func (ye *yamlEncoder) Encode(node *yaml.Node) error {
-	return ye.encoder.Encode(node)
+
+	destination := ye.destination
+	tempBuffer := bytes.NewBuffer(nil)
+	if ye.colorise {
+		destination = tempBuffer
+	}
+
+	var encoder = yaml.NewEncoder(destination)
+
+	encoder.SetIndent(ye.indent)
+	// TODO: work out if the first doc had a separator or not.
+	if ye.firstDoc {
+		ye.firstDoc = false
+	} else if _, err := destination.Write([]byte("---\n")); err != nil {
+		return err
+	}
+
+	if err := encoder.Encode(node); err != nil {
+		return err
+	}
+
+	if ye.colorise {
+		return ColorizeAndPrint(tempBuffer.Bytes(), ye.destination)
+	}
+	return nil
 }
 
 type jsonEncoder struct {

pkg/yqlib/path_parser.go

@@ -4,6 +4,8 @@ import (
 	"fmt"
 	"strconv"
 	"strings"
+
+	yaml "gopkg.in/yaml.v3"
 )
 
 type PathParser interface {
@@ -45,7 +47,7 @@ func (p *pathParser) MatchesNextPathElement(nodeContext NodeContext, nodeKey str
 	}
 	var headString = fmt.Sprintf("%v", head)
 
-	if strings.Contains(headString, "==") {
+	if strings.Contains(headString, "==") && nodeContext.Node.Kind != yaml.ScalarNode {
 		log.Debug("ooh deep recursion time")
 		result := strings.SplitN(headString, "==", 2)
 		path := strings.TrimSpace(result[0])
@@ -63,6 +65,14 @@ func (p *pathParser) MatchesNextPathElement(nodeContext NodeContext, nodeKey str
 		}
 		log.Debug("done deep recursing, found %v matches", len(navigationStrategy.GetVisitedNodes()))
 		return len(navigationStrategy.GetVisitedNodes()) > 0
+	} else if strings.Contains(headString, "==") && nodeContext.Node.Kind == yaml.ScalarNode {
+		result := strings.SplitN(headString, "==", 2)
+		path := strings.TrimSpace(result[0])
+		value := strings.TrimSpace(result[1])
+		if path == "." {
+			log.Debug("need to match scalar")
+			return matchesString(value, nodeContext.Node.Value)
+		}
 	}
 
 	if head == "+" {

release_instructions.txt

@@ -33,6 +33,8 @@
   - docker build .  -t mikefarah/yq:latest -t mikefarah/yq:VERSION 
 
 - debian package
+  - ensure you get all vendor dependencies before packaging
+	```go mod vendor```
   - execute 
     ```dch -i```
   - fill debian/changelog with changes from last version

scripts/devtools.sh

@@ -1,4 +1,4 @@
 #!/bin/sh
-set -e
-wget -O- -nv https://raw.githubusercontent.com/golangci/golangci-lint/master/install.sh | sh -s v1.23.1
+set -ex
 go get golang.org/x/tools/cmd/goimports
+wget -O- -nv https://raw.githubusercontent.com/golangci/golangci-lint/master/install.sh | sh -s v1.24.0

scripts/format.sh

@@ -1,3 +1,4 @@
 #!/bin/bash
 
 find . \( -path ./vendor \) -prune -o -name "*.go" -exec goimports -w {} \;
+go mod tidy

scripts/xcompile.sh

@@ -7,3 +7,6 @@ gox -ldflags "${LDFLAGS}" -output="build/yq_{{.OS}}_{{.Arch}}"
 # include non-default linux builds too
 gox -ldflags "${LDFLAGS}" -os=linux  -output="build/yq_{{.OS}}_{{.Arch}}"
 
+cd build
+rhash -r -a . -P -o checksums
+

snap/snapcraft.yaml

@@ -1,9 +1,10 @@
 name: yq
-version: '3.1.2'
+version: '3.2.1'
 summary: A lightweight and portable command-line YAML processor
 description: |
   The aim of the project is to be the jq or sed of yaml files.
 
+base: core18
 grade: stable # devel|stable. must be 'stable' to release into candidate/stable channels
 confinement: strict
 
@@ -15,8 +16,7 @@ apps:
 parts:
   yq:
     plugin: go
+    go-channel: 1.14/stable
     source: .
+    source-type: git
     go-importpath: github.com/mikefarah/yq
-    after: [go]
-  go:
-    source-tag: go1.11

test.yml

@@ -1,3 +0,0 @@
-b:
-  c: thing
-  d: another thing