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Author SHA1 Message Date
Mike Farah
12edcafd8c Bumping version to beta2 2020-12-09 12:16:16 +11:00
146 changed files with 1970 additions and 4770 deletions

1
.github/FUNDING.yml vendored
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@@ -1 +0,0 @@
github: mikefarah

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@@ -1,8 +1,8 @@
---
name: Bug report - V3
name: Bug report
about: Create a report to help us improve
title: ''
labels: bug, v3
labels: bug
assignees: ''
---
@@ -10,14 +10,11 @@ assignees: ''
**Describe the bug**
A clear and concise description of what the bug is.
Note that any how to questions should be posted in the discussion board and not raised as an issue.
Version of yq: 3.X.X
Operating system: mac/linux/windows/....
Installed via: docker/binary release/homebrew/snap/...
version of yq:
operating system:
**Input Yaml**
Concise yaml document(s) (as simple as possible to show the bug, please keep it to 10 lines or less)
Concise yaml document(s) (as simple as possible to show the bug)
data1.yml:
```yaml
this: should really work

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@@ -1,51 +0,0 @@
---
name: Bug report - V4
about: Create a report to help us improve
title: ''
labels: bug, v4
assignees: ''
---
**Describe the bug**
A clear and concise description of what the bug is.
Note that any how to questions should be posted in the discussion board and not raised as an issue.
Version of yq: 4.X.X
Operating system: mac/linux/windows/....
Installed via: docker/binary release/homebrew/snap/...
**Input Yaml**
Concise yaml document(s) (as simple as possible to show the bug, please keep it to 10 lines or less)
data1.yml:
```yaml
this: should really work
```
data2.yml:
```yaml
but: it strangely didn't
```
**Command**
The command you ran:
```
yq eval-all 'select(fileIndex==0) | .a.b.c' 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.

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@@ -1,23 +1,17 @@
---
name: Feature request - V4
name: Feature request
about: Suggest an idea for this project
title: ''
labels: enhancement, v4
labels: enhancement
assignees: ''
---
**Please describe your feature request.**
A clear and concise description of what the request is and what it would solve.
Eg. I wish I could use yq to [...]
Note:
- how to questions should be posted in the discussion board and not raised as an issue.
- V3 will no longer have any enhancements.
**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:
(please keep to around 10 lines )
```yaml
country: Australia
@@ -26,7 +20,7 @@ country: Australia
And we run a command:
```bash
yq eval 'predictWeatherOf(.country)'
yq predictWeather data1.yml
```
it could output

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@@ -28,4 +28,7 @@ jobs:
run: |
export PATH=${PATH}:`go env GOPATH`/bin
scripts/devtools.sh
- name: Build
run: |
export PATH=${PATH}:`go env GOPATH`/bin
make local build

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@@ -1,70 +0,0 @@
name: Release YQ
on:
push:
tags:
- 'v*'
jobs:
publishGitRelease:
runs-on: ubuntu-latest
steps:
- uses: actions/checkout@v2
- uses: actions/setup-go@v2
with:
go-version: '^1.15'
- name: Cross compile
run: |
sudo apt-get install rhash -y
go get github.com/mitchellh/gox
./scripts/xcompile.sh
- name: Create Release
id: create_release
uses: actions/create-release@v1.0.0
env:
GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
with:
tag_name: ${{ github.ref }}
release_name: ${{ github.ref }}
draft: true
prerelease: false
- uses: shogo82148/actions-upload-release-asset@v1
with:
upload_url: ${{ steps.create_release.outputs.upload_url }}
asset_path: build/*
publishDocker:
environment: dockerhub
env:
IMAGE_NAME: mikefarah/yq
runs-on: ubuntu-latest
steps:
- uses: actions/checkout@v2
- name: Set up QEMU
uses: docker/setup-qemu-action@v1
with:
platforms: all
- name: Set up Docker Buildx
id: buildx
uses: docker/setup-buildx-action@v1
with:
version: latest
- name: Available platforms
run: echo ${{ steps.buildx.outputs.platforms }} && docker version
- name: Build and push image
run: |
IMAGE_V_VERSION="$(git describe --tags --abbrev=0)"
IMAGE_VERSION=${IMAGE_V_VERSION:1}
SHORT_SHA1=$(git rev-parse --short HEAD)
PLATFORMS="linux/amd64,linux/ppc64le,linux/arm64"
echo "Building and pushing version ${IMAGE_VERSION} of image ${IMAGE_NAME}"
echo ${{ secrets.DOCKER_PASSWORD }} | docker login -u ${{ secrets.DOCKER_USERNAME }} --password-stdin
docker buildx build --platform "${PLATFORMS}" -t "${IMAGE_NAME}:${IMAGE_VERSION}" -t "${IMAGE_NAME}:latest" -t "${IMAGE_NAME}:4" \
--push .

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@@ -12,7 +12,7 @@ RUN CGO_ENABLED=0 make local build
# Choose alpine as a base image to make this useful for CI, as many
# CI tools expect an interactive shell inside the container
FROM alpine:3.12.3 as production
FROM alpine:3.12 as production
COPY --from=builder /go/src/mikefarah/yq/yq /usr/bin/yq
RUN chmod +x /usr/bin/yq

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@@ -4,7 +4,6 @@ COPY scripts/devtools.sh /opt/devtools.sh
RUN set -e -x \
&& /opt/devtools.sh
ENV PATH=/go/bin:$PATH
# install mkdocs
RUN set -ex \

134
README.md
View File

@@ -3,64 +3,24 @@
![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. `yq` uses [jq](https://github.com/stedolan/jq) like syntax but works with yaml files as well as json. It doesn't yet support everything `jq` does - but it does support the most common operations and functions, and more is being added continuously.
a lightweight and portable command-line YAML processor
yq is written in go - so you can download a dependency free binary for your platform and you are good to go! If you prefer there are a variety of package managers that can be used as well as docker, all listed below.
## V4 released!
V4 is now officially released, it's quite different from V3 (sorry for the migration), however it is much more similar to ```jq```, using a similar expression syntax and therefore support much more complex functionality!
If you've been using v3 and want/need to upgrade, checkout the [upgrade guide](https://mikefarah.gitbook.io/yq/v/v4.x/upgrading-from-v3).
Support for v3 will cease August 2021, until then, critical bug and security fixes will still get applied if required.
The aim of the project is to be the [jq](https://github.com/stedolan/jq) or sed of yaml files.
## Install
### [Download the latest binary](https://github.com/mikefarah/yq/releases/latest)
### wget
Use wget to download the pre-compiled binaries:
#### Compressed via tar.gz
```bash
wget https://github.com/mikefarah/yq/releases/download/${VERSION}/${BINARY}.tar.gz -O - |\
tar xz && mv ${BINARY} /usr/bin/yq
```
#### Plain binary
```bash
wget https://github.com/mikefarah/yq/releases/download/${VERSION}/${BINARY} -O /usr/bin/yq &&\
chmod +x /usr/bin/yq
```
For instance, VERSION=v4.2.0 and BINARY=yq_linux_amd64
### MacOS / Linux via Homebrew:
Using [Homebrew](https://brew.sh/)
### MacOS:
```
brew install yq
```
or, for the (deprecated) v3 version:
```
brew install yq@3
```
Note that for v3, as it is a versioned brew it will not add the `yq` command to your path automatically. Please follow the instructions given by brew upon installation.
### Linux via snap:
### Ubuntu and other Linux distros supporting `snap` packages:
```
snap install yq
```
or, for the (deprecated) v3 version:
```
snap install yq --channel=v3/stable
```
#### Snap notes
`yq` installs with [_strict confinement_](https://docs.snapcraft.io/snap-confinement/6233) in snap, this means it doesn't have direct access to root files. To read root files you can:
@@ -79,6 +39,18 @@ sudo mv /etc/myfile.tmp /etc/myfile
rm /etc/myfile.tmp
```
### wget
Use wget to download the pre-compiled binaries:
```bash
wget https://github.com/mikefarah/yq/releases/download/{VERSION}/{BINARY} -O /usr/bin/yq &&\
chmod +x /usr/bin/yq
```
For instance, VERSION=4.0.0 and BINARY=yq_linux_amd64
### Run with Docker
#### Oneshot use:
@@ -90,7 +62,7 @@ docker run --rm -v "${PWD}":/workdir mikefarah/yq <command> [flags] [expression
#### Run commands interactively:
```bash
docker run --rm -it -v "${PWD}":/workdir --entrypoint sh mikefarah/yq
docker run --rm -it -v "${PWD}":/workdir mikefarah/yq sh
```
It can be useful to have a bash function to avoid typing the whole docker command:
@@ -109,14 +81,6 @@ GO111MODULE=on go get github.com/mikefarah/yq/v4
## Community Supported Installation methods
As these are supported by the community :heart: - however, they may be out of date with the officially supported releases.
# Webi
```
webi yq
```
See [webi](https://webinstall.dev/)
Supported by @adithyasunil26 (https://github.com/webinstall/webi-installers/tree/master/yq)
### Windows:
```
@@ -124,14 +88,6 @@ choco install yq
```
Supported by @chillum (https://chocolatey.org/packages/yq)
### Mac:
Using [MacPorts](https://www.macports.org/)
```
sudo port selfupdate
sudo port install yq
```
Supported by @herbygillot (https://ports.macports.org/maintainer/github/herbygillot)
### Alpine Linux
- Enable edge/community repo by adding ```$MIRROR/alpine/edge/community``` to ```/etc/apk/repositories```
- Update database index with ```apk update```
@@ -152,18 +108,21 @@ Supported by @rmescandon (https://launchpad.net/~rmescandon/+archive/ubuntu/yq)
## Features
- Written in portable go, so you can download a lovely dependency free binary
- Uses similar syntax as `jq` but works with YAML and JSON files
- Fully supports multi document yaml files
- Colorized yaml output
- [Deeply traverse yaml](https://mikefarah.gitbook.io/yq/v/v4.x/traverse)
- [Sort yaml by keys](https://mikefarah.gitbook.io/yq/v/v4.x/sort-keys)
- Manipulate yaml [comments](https://mikefarah.gitbook.io/yq/comment-operators), [styling](https://mikefarah.gitbook.io/yq/style), [tags](https://mikefarah.gitbook.io/yq/tag) and [anchors and aliases](https://mikefarah.gitbook.io/yq/anchor-and-alias-operators).
- [Update yaml inplace](https://mikefarah.gitbook.io/yq/v/v4.x/commands/evaluate#flags)
- [Complex expressions to select and update](https://mikefarah.gitbook.io/yq/v/v4.x/select#select-and-update-matching-values-in-map)
- Keeps yaml formatting and comments when updating (though there are issues with whitespace)
- [Convert to/from json to yaml](https://mikefarah.gitbook.io/yq/v/v4.x/usage/convert)
- [Pipe data in by using '-'](https://mikefarah.gitbook.io/yq/v/v4.x/commands/evaluate)
- [General shell completion scripts (bash/zsh/fish/powershell)](https://mikefarah.gitbook.io/yq/v/v4.x/commands/shell-completion)
- [Deep read a yaml file with a given path expression](https://mikefarah.gitbook.io/yq/v/v4.x/traverse)
- [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
- Keeps yaml formatting and comments when updating
- [Validate a yaml file](https://mikefarah.gitbook.io/yq/commands/validate)
- Create a yaml file given a [deep path and value](https://mikefarah.gitbook.io/yq/commands/create#creating-a-simple-yaml-file) or a [script file](https://mikefarah.gitbook.io/yq/commands/create#creating-using-a-create-script)
- [Prefix a path to a yaml file](https://mikefarah.gitbook.io/yq/commands/prefix)
- [Convert to/from json to yaml](https://mikefarah.gitbook.io/yq/usage/convert)
- [Pipe data in by using '-'](https://mikefarah.gitbook.io/yq/commands/read#from-stdin)
- [Merge](https://mikefarah.gitbook.io/yq/commands/merge) multiple yaml files with various options for [overriding](https://mikefarah.gitbook.io/yq/commands/merge#overwrite-values) and [appending](https://mikefarah.gitbook.io/yq/commands/merge#append-values-with-arrays)
- Supports multiple documents in a single yaml file for [reading](https://mikefarah.gitbook.io/yq/commands/read#multiple-documents), [writing](https://mikefarah.gitbook.io/yq/commands/write-update#multiple-documents) and [merging](https://mikefarah.gitbook.io/yq/commands/merge#multiple-documents)
- General shell completion scripts (bash/zsh/fish/powershell) (https://mikefarah.gitbook.io/yq/commands/shell-completion)
## [Usage](https://mikefarah.gitbook.io/yq/)
@@ -175,33 +134,32 @@ Usage:
yq [command]
Available Commands:
eval Apply expression to each document in each yaml file given in sequence
eval-all Loads _all_ yaml documents of _all_ yaml files and runs expression once
compare yq x [--prettyPrint/-P] dataA.yaml dataB.yaml 'b.e(name==fr*).value'
delete yq d [--inplace/-i] [--doc/-d index] sample.yaml 'b.e(name==fred)'
help Help about any command
shell-completion Generate completion script
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 [--printMode/-p pv] sample.yaml 'b.e(name==fr*).value'
shell-completion Generates shell completion scripts
validate yq v sample.yaml
write yq w [--inplace/-i] [--script/-s script_file] [--doc/-d index] sample.yaml 'b.e(name==fr*).value' newValue
Flags:
-C, --colors force print with colors
-e, --exit-status set exit status if there are no matches or null or false is returned
-C, --colors print with colors
-h, --help help for yq
-I, --indent int sets indent level for output (default 2)
-i, --inplace update the yaml file inplace of first yaml file given.
-M, --no-colors force print with no colors
-N, --no-doc Don't print document separators (---)
-n, --null-input Don't read input, simply evaluate the expression given. Useful for creating yaml docs from scratch.
-P, --prettyPrint pretty print, shorthand for '... style = ""'
-j, --tojson output as json. Set indent to 0 to print json in one line.
-P, --prettyPrint pretty print
-j, --tojson output as json. By default it prints a json document in one line, use the prettyPrint flag to print a formatted doc.
-v, --verbose verbose mode
-V, --version Print version information and quit
Use "yq [command] --help" for more information about a command.
```
Simple Example:
```bash
yq e '.a.b | length' f1.yml f2.yml
```
## Upgrade from V2
If you've been using v2 and want/need to upgrade, checkout the [upgrade guide](https://mikefarah.gitbook.io/yq/upgrading-from-v2).
## Known Issues / Missing Features
- `yq` attempts to preserve comment positions and whitespace as much as possible, but it does not handle all scenarios (see https://github.com/go-yaml/yaml/tree/v3 for details)
- You cannot (yet) select multiple paths/keys from the yaml to be printed out (https://github.com/mikefarah/yq/issues/287)

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@@ -14,6 +14,5 @@ var noDocSeparators = false
var nullInput = false
var verbose = false
var version = false
var prettyPrint = false
var completedSuccessfully = false

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@@ -59,29 +59,25 @@ func evaluateAll(cmd *cobra.Command, args []string) error {
defer func() { writeInPlaceHandler.FinishWriteInPlace(completedSuccessfully) }()
}
if nullInput && len(args) > 1 {
return errors.New("Cannot pass files in when using null-input flag")
}
printer := yqlib.NewPrinter(out, outputToJSON, unwrapScalar, colorsEnabled, indent, !noDocSeparators)
allAtOnceEvaluator := yqlib.NewAllAtOnceEvaluator()
switch len(args) {
case 0:
if pipingStdIn {
err = allAtOnceEvaluator.EvaluateFiles(processExpression(""), []string{"-"}, printer)
err = allAtOnceEvaluator.EvaluateFiles("", []string{"-"}, printer)
} else {
cmd.Println(cmd.UsageString())
return nil
}
case 1:
if nullInput {
err = yqlib.NewStreamEvaluator().EvaluateNew(processExpression(args[0]), printer)
err = yqlib.NewStreamEvaluator().EvaluateNew(args[0], printer)
} else {
err = allAtOnceEvaluator.EvaluateFiles(processExpression(""), []string{args[0]}, printer)
err = allAtOnceEvaluator.EvaluateFiles("", []string{args[0]}, printer)
}
default:
err = allAtOnceEvaluator.EvaluateFiles(processExpression(args[0]), args[1:], printer)
err = allAtOnceEvaluator.EvaluateFiles(args[0], args[1:], printer)
}
completedSuccessfully = err == nil

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@@ -33,16 +33,6 @@ yq e '.a.b = "cool"' -i file.yaml
}
return cmdEvalSequence
}
func processExpression(expression string) string {
if prettyPrint && expression == "" {
return `... style=""`
} else if prettyPrint {
return fmt.Sprintf("%v | ... style= \"\"", expression)
}
return expression
}
func evaluateSequence(cmd *cobra.Command, args []string) error {
cmd.SilenceUsage = true
// 0 args, read std in
@@ -83,23 +73,19 @@ func evaluateSequence(cmd *cobra.Command, args []string) error {
streamEvaluator := yqlib.NewStreamEvaluator()
if nullInput && len(args) > 1 {
return errors.New("Cannot pass files in when using null-input flag")
}
switch len(args) {
case 0:
if pipingStdIn {
err = streamEvaluator.EvaluateFiles(processExpression(""), []string{"-"}, printer)
err = streamEvaluator.EvaluateFiles("", []string{"-"}, printer)
} else {
cmd.Println(cmd.UsageString())
return nil
}
case 1:
if nullInput {
err = streamEvaluator.EvaluateNew(processExpression(args[0]), printer)
err = streamEvaluator.EvaluateNew(args[0], printer)
} else {
err = streamEvaluator.EvaluateFiles(processExpression(""), []string{args[0]}, printer)
err = streamEvaluator.EvaluateFiles("", []string{args[0]}, printer)
}
default:
err = streamEvaluator.EvaluateFiles(args[0], args[1:], printer)

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@@ -47,8 +47,6 @@ func New() *cobra.Command {
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(&writeInplace, "inplace", "i", false, "update the yaml file inplace of first yaml file given.")
rootCmd.PersistentFlags().BoolVarP(&unwrapScalar, "unwrapScalar", "", true, "unwrap scalar, print the value with no quotes, colors or comments")
rootCmd.PersistentFlags().BoolVarP(&prettyPrint, "prettyPrint", "P", false, "pretty print, shorthand for '... style = \"\"'")
rootCmd.PersistentFlags().BoolVarP(&exitStatus, "exit-status", "e", false, "set exit status if there are no matches or null or false is returned")
rootCmd.PersistentFlags().BoolVarP(&forceColor, "colors", "C", false, "force print with colors")

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@@ -11,7 +11,7 @@ var (
GitDescribe string
// Version is main version number that is being run at the moment.
Version = "4.4.1"
Version = "4.0.0-beta2"
// 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

View File

@@ -1,6 +1,4 @@
a:
key1: "value1"
key2: 2.6
ab:
key1: 6
key2: "h"
a: simple # just the best
b: [1, 2]
c:
test: 1

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@@ -1,4 +1,4 @@
FROM mikefarah/yq:4.4.1
FROM mikefarah/yq:3
COPY entrypoint.sh /entrypoint.sh

12
go.mod
View File

@@ -2,15 +2,17 @@ module github.com/mikefarah/yq/v4
require (
github.com/elliotchance/orderedmap v1.3.0
github.com/fatih/color v1.10.0
github.com/goccy/go-yaml v1.8.4
github.com/jinzhu/copier v0.1.0
github.com/fatih/color v1.9.0
github.com/goccy/go-yaml v1.8.1
github.com/jinzhu/copier v0.0.0-20190924061706-b57f9002281a
github.com/mattn/go-colorable v0.1.7 // indirect
github.com/spf13/cobra v1.1.1
github.com/timtadh/data-structures v0.5.3 // indirect
github.com/timtadh/lexmachine v0.2.2
golang.org/x/sys v0.0.0-20210105210732-16f7687f5001 // indirect
golang.org/x/sys v0.0.0-20200930185726-fdedc70b468f // indirect
golang.org/x/xerrors v0.0.0-20200804184101-5ec99f83aff1 // indirect
gopkg.in/op/go-logging.v1 v1.0.0-20160211212156-b2cb9fa56473
gopkg.in/yaml.v3 v3.0.0-20210107192922-496545a6307b
gopkg.in/yaml.v3 v3.0.0-20200615113413-eeeca48fe776
)
go 1.15

44
go.sum
View File

@@ -39,21 +39,19 @@ github.com/dgryski/go-sip13 v0.0.0-20181026042036-e10d5fee7954/go.mod h1:vAd38F8
github.com/elliotchance/orderedmap v1.3.0 h1:k6m77/d0zCXTjsk12nX40TkEBkSICq8T4s6R6bpCqU0=
github.com/elliotchance/orderedmap v1.3.0/go.mod h1:8hdSl6jmveQw8ScByd3AaNHNk51RhbTazdqtTty+NFw=
github.com/fatih/color v1.7.0/go.mod h1:Zm6kSWBoL9eyXnKyktHP6abPY2pDugNf5KwzbycvMj4=
github.com/fatih/color v1.10.0 h1:s36xzo75JdqLaaWoiEHk767eHiwo0598uUxyfiPkDsg=
github.com/fatih/color v1.10.0/go.mod h1:ELkj/draVOlAH/xkhN6mQ50Qd0MPOk5AAr3maGEBuJM=
github.com/fatih/color v1.9.0 h1:8xPHl4/q1VyqGIPif1F+1V3Y3lSmrq01EabUW3CoW5s=
github.com/fatih/color v1.9.0/go.mod h1:eQcE1qtQxscV5RaZvpXrrb8Drkc3/DdQ+uUYCNjL+zU=
github.com/fsnotify/fsnotify v1.4.7/go.mod h1:jwhsz4b93w/PPRr/qN1Yymfu8t87LnFCMoQvtojpjFo=
github.com/ghodss/yaml v1.0.0/go.mod h1:4dBDuWmgqj2HViK6kFavaiC9ZROes6MMH2rRYeMEF04=
github.com/go-gl/glfw v0.0.0-20190409004039-e6da0acd62b1/go.mod h1:vR7hzQXu2zJy9AVAgeJqvqgH9Q5CA+iKCZ2gyEVpxRU=
github.com/go-kit/kit v0.8.0/go.mod h1:xBxKIO96dXMWWy0MnWVtmwkA9/13aqxPnvrjFYMA2as=
github.com/go-logfmt/logfmt v0.3.0/go.mod h1:Qt1PoO58o5twSAckw1HlFXLmHsOX5/0LbT9GBnD5lWE=
github.com/go-logfmt/logfmt v0.4.0/go.mod h1:3RMwSq7FuexP4Kalkev3ejPJsZTpXXBr9+V4qmtdjCk=
github.com/go-playground/assert/v2 v2.0.1/go.mod h1:VDjEfimB/XKnb+ZQfWdccd7VUvScMdVu0Titje2rxJ4=
github.com/go-playground/locales v0.13.0/go.mod h1:taPMhCMXrRLJO55olJkUXHZBHCxTMfnGwq/HNwmWNS8=
github.com/go-playground/universal-translator v0.17.0/go.mod h1:UkSxE5sNxxRwHyU+Scu5vgOQjsIJAF8j9muTVoKLVtA=
github.com/go-playground/validator/v10 v10.4.1/go.mod h1:nlOn6nFhuKACm19sB/8EGNn9GlaMV7XkbRSipzJ0Ii4=
github.com/go-stack/stack v1.8.0/go.mod h1:v0f6uXyyMGvRgIKkXu+yp6POWl0qKG85gN/melR3HDY=
github.com/goccy/go-yaml v1.8.4 h1:AOEdR7aQgbgwHznGe3BLkDQVujxCPUpHOZZcQcp8Y3M=
github.com/goccy/go-yaml v1.8.4/go.mod h1:U/jl18uSupI5rdI2jmuCswEA2htH9eXfferR3KfscvA=
github.com/goccy/go-yaml v1.8.1 h1:JuZRFlqLM5cWF6A+waL8AKVuCcqvKOuhJtUQI+L3ez0=
github.com/goccy/go-yaml v1.8.1/go.mod h1:wS4gNoLalDSJxo/SpngzPQ2BN4uuZVLCmbM4S3vd4+Y=
github.com/gogo/protobuf v1.1.1/go.mod h1:r8qH/GZQm5c6nD/R0oafs1akxWv10x8SbQlK7atdtwQ=
github.com/gogo/protobuf v1.2.1/go.mod h1:hp+jE20tsWTFYpLwKvXlhS1hjn+gTNwPg2I6zVXpSg4=
github.com/golang/glog v0.0.0-20160126235308-23def4e6c14b/go.mod h1:SBH7ygxi8pfUlaOkMMuAQtPIUF8ecWP5IEl/CR7VP2Q=
@@ -101,8 +99,8 @@ github.com/hashicorp/memberlist v0.1.3/go.mod h1:ajVTdAv/9Im8oMAAj5G31PhhMCZJV2p
github.com/hashicorp/serf v0.8.2/go.mod h1:6hOLApaqBFA1NXqRQAsxw9QxuDEvNxSQRwA/JwenrHc=
github.com/inconshreveable/mousetrap v1.0.0 h1:Z8tu5sraLXCXIcARxBp/8cbvlwVa7Z1NHg9XEKhtSvM=
github.com/inconshreveable/mousetrap v1.0.0/go.mod h1:PxqpIevigyE2G7u3NXJIT2ANytuPF1OarO4DADm73n8=
github.com/jinzhu/copier v0.1.0 h1:Vh8xALtH3rrKGB/XIRe5d0yCTHPZFauWPLvdpDAbi88=
github.com/jinzhu/copier v0.1.0/go.mod h1:24xnZezI2Yqac9J61UC6/dG/k76ttpq0DdJI3QmUvro=
github.com/jinzhu/copier v0.0.0-20190924061706-b57f9002281a h1:zPPuIq2jAWWPTrGt70eK/BSch+gFAGrNzecsoENgu2o=
github.com/jinzhu/copier v0.0.0-20190924061706-b57f9002281a/go.mod h1:yL958EeXv8Ylng6IfnvG4oflryUi3vgA3xPs9hmII1s=
github.com/jonboulle/clockwork v0.1.0/go.mod h1:Ii8DK3G1RaLaWxj9trq07+26W01tbo22gdxWY5EU2bo=
github.com/json-iterator/go v1.1.6/go.mod h1:+SdeFBvtyEkXs7REEP0seUULqWtbJapLOCVDaaPEHmU=
github.com/jstemmer/go-junit-report v0.0.0-20190106144839-af01ea7f8024/go.mod h1:6v2b51hI/fHJwM22ozAgKL4VKDeJcHhJFhtBdhmNjmU=
@@ -120,9 +118,15 @@ github.com/kr/text v0.1.0/go.mod h1:4Jbv+DJW3UT/LiOwJeYQe1efqtUx/iVham/4vfdArNI=
github.com/leodido/go-urn v1.2.0/go.mod h1:+8+nEpDfqqsY+g338gtMEUOtuK+4dEMhiQEgxpxOKII=
github.com/magiconair/properties v1.8.1/go.mod h1:PppfXfuXeibc/6YijjN8zIbojt8czPbwD3XqdrwzmxQ=
github.com/mattn/go-colorable v0.0.9/go.mod h1:9vuHe8Xs5qXnSaW/c/ABM9alt+Vo+STaOChaDxuIBZU=
github.com/mattn/go-colorable v0.1.8 h1:c1ghPdyEDarC70ftn0y+A/Ee++9zz8ljHG1b13eJ0s8=
github.com/mattn/go-colorable v0.1.8/go.mod h1:u6P/XSegPjTcexA+o6vUJrdnUu04hMope9wVRipJSqc=
github.com/mattn/go-colorable v0.1.4 h1:snbPLB8fVfU9iwbbo30TPtbLRzwWu6aJS6Xh4eaaviA=
github.com/mattn/go-colorable v0.1.4/go.mod h1:U0ppj6V5qS13XJ6of8GYAs25YV2eR4EVcfRqFIhoBtE=
github.com/mattn/go-colorable v0.1.7 h1:bQGKb3vps/j0E9GfJQ03JyhRuxsvdAanXlT9BTw3mdw=
github.com/mattn/go-colorable v0.1.7/go.mod h1:u6P/XSegPjTcexA+o6vUJrdnUu04hMope9wVRipJSqc=
github.com/mattn/go-isatty v0.0.3/go.mod h1:M+lRXTBqGeGNdLjl/ufCoiOlB5xdOkqRJdNxMWT7Zi4=
github.com/mattn/go-isatty v0.0.8/go.mod h1:Iq45c/XA43vh69/j3iqttzPXn0bhXyGjM0Hdxcsrc5s=
github.com/mattn/go-isatty v0.0.10/go.mod h1:qgIWMr58cqv1PHHyhnkY9lrL7etaEgOFcMEpPG5Rm84=
github.com/mattn/go-isatty v0.0.11 h1:FxPOTFNqGkuDUGi3H/qkUbQO4ZiBa2brKq5r0l8TGeM=
github.com/mattn/go-isatty v0.0.11/go.mod h1:PhnuNfih5lzO57/f3n+odYbM4JtupLOxQOAqxQCu2WE=
github.com/mattn/go-isatty v0.0.12 h1:wuysRhFDzyxgEmMf5xjvJ2M9dZoWAXNNr5LSBS7uHXY=
github.com/mattn/go-isatty v0.0.12/go.mod h1:cbi8OIDigv2wuxKPP5vlRcQ1OAZbq2CE4Kysco4FUpU=
github.com/matttproud/golang_protobuf_extensions v1.0.1/go.mod h1:D8He9yQNgCq6Z5Ld7szi9bcBfOoFv/3dc6xSMkL2PC0=
@@ -200,7 +204,6 @@ golang.org/x/crypto v0.0.0-20181029021203-45a5f77698d3/go.mod h1:6SG95UA2DQfeDnf
golang.org/x/crypto v0.0.0-20190308221718-c2843e01d9a2/go.mod h1:djNgcEr1/C05ACkg1iLfiJU5Ep61QUkGW8qpdssI0+w=
golang.org/x/crypto v0.0.0-20190510104115-cbcb75029529/go.mod h1:yigFU9vqHzYiE8UmvKecakEJjdnWj3jj499lnFckfCI=
golang.org/x/crypto v0.0.0-20190605123033-f99c8df09eb5/go.mod h1:yigFU9vqHzYiE8UmvKecakEJjdnWj3jj499lnFckfCI=
golang.org/x/crypto v0.0.0-20200622213623-75b288015ac9/go.mod h1:LzIPMQfyMNhhGPhUkYOs5KpL4U8rLKemX1yGLhDgUto=
golang.org/x/exp v0.0.0-20190121172915-509febef88a4/go.mod h1:CJ0aWSM057203Lf6IL+f9T1iT9GByDxfZKAQTCR3kQA=
golang.org/x/exp v0.0.0-20190306152737-a1d7652674e8/go.mod h1:CJ0aWSM057203Lf6IL+f9T1iT9GByDxfZKAQTCR3kQA=
golang.org/x/exp v0.0.0-20190510132918-efd6b22b2522/go.mod h1:ZjyILWgesfNpC6sMxTJOJm9Kp84zZh5NQWvqDGG3Qr8=
@@ -248,17 +251,21 @@ golang.org/x/sys v0.0.0-20181026203630-95b1ffbd15a5/go.mod h1:STP8DvDyc/dI5b8T5h
golang.org/x/sys v0.0.0-20181107165924-66b7b1311ac8/go.mod h1:STP8DvDyc/dI5b8T5hshtkjS+E42TnysNCUPdjciGhY=
golang.org/x/sys v0.0.0-20181116152217-5ac8a444bdc5/go.mod h1:STP8DvDyc/dI5b8T5hshtkjS+E42TnysNCUPdjciGhY=
golang.org/x/sys v0.0.0-20190215142949-d0b11bdaac8a/go.mod h1:STP8DvDyc/dI5b8T5hshtkjS+E42TnysNCUPdjciGhY=
golang.org/x/sys v0.0.0-20190222072716-a9d3bda3a223/go.mod h1:STP8DvDyc/dI5b8T5hshtkjS+E42TnysNCUPdjciGhY=
golang.org/x/sys v0.0.0-20190312061237-fead79001313/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs=
golang.org/x/sys v0.0.0-20190412213103-97732733099d/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs=
golang.org/x/sys v0.0.0-20190502145724-3ef323f4f1fd/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs=
golang.org/x/sys v0.0.0-20190507160741-ecd444e8653b/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs=
golang.org/x/sys v0.0.0-20190606165138-5da285871e9c/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs=
golang.org/x/sys v0.0.0-20190624142023-c5567b49c5d0/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs=
golang.org/x/sys v0.0.0-20191008105621-543471e840be/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs=
golang.org/x/sys v0.0.0-20191010194322-b09406accb47/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs=
golang.org/x/sys v0.0.0-20191026070338-33540a1f6037 h1:YyJpGZS1sBuBCzLAR1VEpK193GlqGZbnPFnPV/5Rsb4=
golang.org/x/sys v0.0.0-20191026070338-33540a1f6037/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs=
golang.org/x/sys v0.0.0-20200116001909-b77594299b42/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs=
golang.org/x/sys v0.0.0-20200223170610-d5e6a3e2c0ae h1:/WDfKMnPU+m5M4xB+6x4kaepxRw6jWvR5iDRdvjHgy8=
golang.org/x/sys v0.0.0-20200223170610-d5e6a3e2c0ae/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs=
golang.org/x/sys v0.0.0-20210105210732-16f7687f5001 h1:/dSxr6gT0FNI1MO5WLJo8mTmItROeOKTkDn+7OwWBos=
golang.org/x/sys v0.0.0-20210105210732-16f7687f5001/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs=
golang.org/x/sys v0.0.0-20200930185726-fdedc70b468f h1:+Nyd8tzPX9R7BWHguqsrbFdRx3WQ/1ib8I44HXV5yTA=
golang.org/x/sys v0.0.0-20200930185726-fdedc70b468f/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs=
golang.org/x/text v0.3.0/go.mod h1:NqM8EUOU14njkJ3fqMW+pc6Ldnwhi/IjpwHt7yyuwOQ=
golang.org/x/text v0.3.1-0.20180807135948-17ff2d5776d2/go.mod h1:NqM8EUOU14njkJ3fqMW+pc6Ldnwhi/IjpwHt7yyuwOQ=
golang.org/x/text v0.3.2/go.mod h1:bEr9sfX3Q8Zfm5fL9x+3itogRgK3+ptLWKqgva+5dAk=
@@ -281,9 +288,10 @@ golang.org/x/tools v0.0.0-20190628153133-6cdbf07be9d0/go.mod h1:/rFqwRUd4F7ZHNgw
golang.org/x/tools v0.0.0-20190816200558-6889da9d5479/go.mod h1:b+2E5dAYhXwXZwtnZ6UAqBI28+e2cm9otk0dWdXHAEo=
golang.org/x/tools v0.0.0-20190911174233-4f2ddba30aff/go.mod h1:b+2E5dAYhXwXZwtnZ6UAqBI28+e2cm9otk0dWdXHAEo=
golang.org/x/tools v0.0.0-20191012152004-8de300cfc20a/go.mod h1:b+2E5dAYhXwXZwtnZ6UAqBI28+e2cm9otk0dWdXHAEo=
golang.org/x/tools v0.0.0-20191112195655-aa38f8e97acc h1:NCy3Ohtk6Iny5V/reW2Ktypo4zIpWBdRJ1uFMjBxdg8=
golang.org/x/tools v0.0.0-20191112195655-aa38f8e97acc/go.mod h1:b+2E5dAYhXwXZwtnZ6UAqBI28+e2cm9otk0dWdXHAEo=
golang.org/x/xerrors v0.0.0-20190717185122-a985d3407aa7/go.mod h1:I/5z698sn9Ka8TeJc9MKroUUfqBBauWjQqLJ2OPfmY0=
golang.org/x/xerrors v0.0.0-20191011141410-1b5146add898 h1:/atklqdjdhuosWIl6AIbOeHJjicWYPqR9bpxqxYG2pA=
golang.org/x/xerrors v0.0.0-20191011141410-1b5146add898/go.mod h1:I/5z698sn9Ka8TeJc9MKroUUfqBBauWjQqLJ2OPfmY0=
golang.org/x/xerrors v0.0.0-20200804184101-5ec99f83aff1 h1:go1bK/D/BFZV2I8cIQd1NKEZ+0owSTG1fDTci4IqFcE=
golang.org/x/xerrors v0.0.0-20200804184101-5ec99f83aff1/go.mod h1:I/5z698sn9Ka8TeJc9MKroUUfqBBauWjQqLJ2OPfmY0=
google.golang.org/api v0.4.0/go.mod h1:8k5glujaEP+g9n7WNsDg8QP6cUVNI86fCNMcbazEtwE=
@@ -313,6 +321,8 @@ gopkg.in/check.v1 v0.0.0-20161208181325-20d25e280405/go.mod h1:Co6ibVJAznAaIkqp8
gopkg.in/check.v1 v1.0.0-20180628173108-788fd7840127 h1:qIbj1fsPNlZgppZ+VLlY7N33q108Sa+fhmuc+sWQYwY=
gopkg.in/check.v1 v1.0.0-20180628173108-788fd7840127/go.mod h1:Co6ibVJAznAaIkqp8huTwlJQCZ016jof/cbN4VW5Yz0=
gopkg.in/errgo.v2 v2.1.0/go.mod h1:hNsd1EY+bozCKY1Ytp96fpM3vjJbqLJn88ws8XvfDNI=
gopkg.in/go-playground/assert.v1 v1.2.1/go.mod h1:9RXL0bg/zibRAgZUYszZSwO/z8Y/a8bDuhia5mkpMnE=
gopkg.in/go-playground/validator.v9 v9.30.0/go.mod h1:+c9/zcJMFNgbLvly1L1V+PpxWdVbfP1avr/N00E2vyQ=
gopkg.in/ini.v1 v1.51.0/go.mod h1:pNLf8WUiyNEtQjuu5G5vTm06TEv9tsIgeAvK8hOrP4k=
gopkg.in/op/go-logging.v1 v1.0.0-20160211212156-b2cb9fa56473 h1:6D+BvnJ/j6e222UW8s2qTSe3wGBtvo0MbVQG/c5k8RE=
gopkg.in/op/go-logging.v1 v1.0.0-20160211212156-b2cb9fa56473/go.mod h1:N1eN2tsCx0Ydtgjl4cqmbRCsY4/+z4cYDeqwZTk6zog=
@@ -324,8 +334,8 @@ gopkg.in/yaml.v2 v2.2.2/go.mod h1:hI93XBmqTisBFMUTm0b8Fm+jr3Dg1NNxqwp+5A1VGuI=
gopkg.in/yaml.v2 v2.2.4/go.mod h1:hI93XBmqTisBFMUTm0b8Fm+jr3Dg1NNxqwp+5A1VGuI=
gopkg.in/yaml.v2 v2.2.8 h1:obN1ZagJSUGI0Ek/LBmuj4SNLPfIny3KsKFopxRdj10=
gopkg.in/yaml.v2 v2.2.8/go.mod h1:hI93XBmqTisBFMUTm0b8Fm+jr3Dg1NNxqwp+5A1VGuI=
gopkg.in/yaml.v3 v3.0.0-20210107192922-496545a6307b h1:h8qDotaEPuJATrMmW04NCwg7v22aHH28wwpauUhK9Oo=
gopkg.in/yaml.v3 v3.0.0-20210107192922-496545a6307b/go.mod h1:K4uyk7z7BCEPqu6E+C64Yfv1cQ7kz7rIZviUmN+EgEM=
gopkg.in/yaml.v3 v3.0.0-20200615113413-eeeca48fe776 h1:tQIYjPdBoyREyB9XMu+nnTclpTYkz2zFM+lzLJFO4gQ=
gopkg.in/yaml.v3 v3.0.0-20200615113413-eeeca48fe776/go.mod h1:K4uyk7z7BCEPqu6E+C64Yfv1cQ7kz7rIZviUmN+EgEM=
honnef.co/go/tools v0.0.0-20190102054323-c2f93a96b099/go.mod h1:rf3lG4BRIbNafJWhAfAdb/ePZxsR/4RtNHQocxwk9r4=
honnef.co/go/tools v0.0.0-20190106161140-3f1c8253044a/go.mod h1:rf3lG4BRIbNafJWhAfAdb/ePZxsR/4RtNHQocxwk9r4=
honnef.co/go/tools v0.0.0-20190418001031-e561f6794a2a/go.mod h1:rf3lG4BRIbNafJWhAfAdb/ePZxsR/4RtNHQocxwk9r4=

View File

@@ -1,54 +1,29 @@
package yqlib
import (
"container/list"
import "container/list"
yaml "gopkg.in/yaml.v3"
)
// A yaml expression evaluator that runs the expression once against all files/nodes in memory.
/**
Loads all yaml documents of all files given into memory, then runs the given expression once.
**/
type Evaluator interface {
EvaluateFiles(expression string, filenames []string, printer Printer) error
// EvaluateNodes takes an expression and one or more yaml nodes, returning a list of matching candidate nodes
EvaluateNodes(expression string, nodes ...*yaml.Node) (*list.List, error)
// EvaluateCandidateNodes takes an expression and list of candidate nodes, returning a list of matching candidate nodes
EvaluateCandidateNodes(expression string, inputCandidateNodes *list.List) (*list.List, error)
}
type allAtOnceEvaluator struct {
treeNavigator DataTreeNavigator
treeCreator ExpressionParser
treeCreator PathTreeCreator
}
func NewAllAtOnceEvaluator() Evaluator {
return &allAtOnceEvaluator{treeNavigator: NewDataTreeNavigator(), treeCreator: NewExpressionParser()}
}
func (e *allAtOnceEvaluator) EvaluateNodes(expression string, nodes ...*yaml.Node) (*list.List, error) {
inputCandidates := list.New()
for _, node := range nodes {
inputCandidates.PushBack(&CandidateNode{Node: node})
}
return e.EvaluateCandidateNodes(expression, inputCandidates)
}
func (e *allAtOnceEvaluator) EvaluateCandidateNodes(expression string, inputCandidates *list.List) (*list.List, error) {
node, err := e.treeCreator.ParseExpression(expression)
if err != nil {
return nil, err
}
context, err := e.treeNavigator.GetMatchingNodes(Context{MatchingNodes: inputCandidates}, node)
if err != nil {
return nil, err
}
return context.MatchingNodes, nil
return &allAtOnceEvaluator{treeNavigator: NewDataTreeNavigator(), treeCreator: NewPathTreeCreator()}
}
func (e *allAtOnceEvaluator) EvaluateFiles(expression string, filenames []string, printer Printer) error {
fileIndex := 0
node, err := treeCreator.ParsePath(expression)
if err != nil {
return err
}
var allDocuments *list.List = list.New()
for _, filename := range filenames {
reader, err := readStream(filename)
@@ -62,7 +37,7 @@ func (e *allAtOnceEvaluator) EvaluateFiles(expression string, filenames []string
allDocuments.PushBackList(fileDocuments)
fileIndex = fileIndex + 1
}
matches, err := e.EvaluateCandidateNodes(expression, allDocuments)
matches, err := treeNavigator.GetMatchingNodes(allDocuments, node)
if err != nil {
return err
}

View File

@@ -1,40 +0,0 @@
package yqlib
import (
"testing"
"github.com/mikefarah/yq/v4/test"
)
var evaluateNodesScenario = []expressionScenario{
{
document: `a: hello`,
expression: `.a`,
expected: []string{
"D0, P[a], (!!str)::hello\n",
},
},
{
document: `a: hello`,
expression: `.`,
expected: []string{
"D0, P[], (doc)::a: hello\n",
},
},
{
document: `- a: "yes"`,
expression: `.[] | has("a")`,
expected: []string{
"D0, P[0], (!!bool)::true\n",
},
},
}
func TestAllAtOnceEvaluateNodes(t *testing.T) {
var evaluator = NewAllAtOnceEvaluator()
for _, tt := range evaluateNodesScenario {
node := test.ParseData(tt.document)
list, _ := evaluator.EvaluateNodes(tt.expression, &node)
test.AssertResultComplex(t, tt.expected, resultsToString(list))
}
}

View File

@@ -15,39 +15,12 @@ type CandidateNode struct {
Document uint // the document index of this node
Filename string
FileIndex int
// when performing op against all nodes given, this will treat all the nodes as one
// (e.g. top level cross document merge). This property does not propegate to child nodes.
EvaluateTogether bool
}
func (n *CandidateNode) GetKey() string {
return fmt.Sprintf("%v - %v", n.Document, n.Path)
}
func (n *CandidateNode) CreateChild(path interface{}, node *yaml.Node) *CandidateNode {
return &CandidateNode{
Node: node,
Path: n.createChildPath(path),
Document: n.Document,
Filename: n.Filename,
FileIndex: n.FileIndex,
}
}
func (n *CandidateNode) createChildPath(path interface{}) []interface{} {
if path == nil {
newPath := make([]interface{}, len(n.Path))
copy(newPath, n.Path)
return newPath
}
//don't use append as they may actually modify the path of the orignal node!
newPath := make([]interface{}, len(n.Path)+1)
copy(newPath, n.Path)
newPath[len(n.Path)] = path
return newPath
}
func (n *CandidateNode) Copy() (*CandidateNode, error) {
clone := &CandidateNode{}
err := copier.Copy(clone, n)
@@ -59,12 +32,10 @@ func (n *CandidateNode) Copy() (*CandidateNode, error) {
// updates this candidate from the given candidate node
func (n *CandidateNode) UpdateFrom(other *CandidateNode) {
n.UpdateAttributesFrom(other)
n.Node.Content = other.Node.Content
n.Node.Value = other.Node.Value
n.Node.Alias = other.Node.Alias
n.Node.Anchor = other.Node.Anchor
}
func (n *CandidateNode) UpdateAttributesFrom(other *CandidateNode) {

View File

@@ -17,8 +17,8 @@ func format(attr color.Attribute) string {
return fmt.Sprintf("%s[%dm", escape, attr)
}
func colorizeAndPrint(yamlBytes []byte, writer io.Writer) error {
tokens := lexer.Tokenize(string(yamlBytes))
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{

View File

@@ -1,30 +0,0 @@
package yqlib
import (
"container/list"
"github.com/jinzhu/copier"
)
type Context struct {
MatchingNodes *list.List
Variables map[string]*list.List
DontAutoCreate bool
}
func (n *Context) SingleChildContext(candidate *CandidateNode) Context {
list := list.New()
list.PushBack(candidate)
return n.ChildContext(list)
}
func (n *Context) ChildContext(results *list.List) Context {
clone := Context{}
err := copier.Copy(&clone, n)
if err != nil {
log.Error("Error cloning context :(")
panic(err)
}
clone.MatchingNodes = results
return clone
}

View File

@@ -3,14 +3,16 @@ package yqlib
import (
"fmt"
"container/list"
logging "gopkg.in/op/go-logging.v1"
)
type DataTreeNavigator interface {
// given the context and a expressionNode,
// this will process the against the given expressionNode and return
// a new context of matching candidates
GetMatchingNodes(context Context, expressionNode *ExpressionNode) (Context, error)
// given a list of CandidateEntities and a pathNode,
// this will process the list against the given pathNode and return
// a new list of matching candidates
GetMatchingNodes(matchingNodes *list.List, pathNode *PathTreeNode) (*list.List, error)
}
type dataTreeNavigator struct {
@@ -20,22 +22,22 @@ func NewDataTreeNavigator() DataTreeNavigator {
return &dataTreeNavigator{}
}
func (d *dataTreeNavigator) GetMatchingNodes(context Context, expressionNode *ExpressionNode) (Context, error) {
if expressionNode == nil {
func (d *dataTreeNavigator) GetMatchingNodes(matchingNodes *list.List, pathNode *PathTreeNode) (*list.List, error) {
if pathNode == nil {
log.Debugf("getMatchingNodes - nothing to do")
return context, nil
return matchingNodes, nil
}
log.Debugf("Processing Op: %v", expressionNode.Operation.toString())
log.Debugf("Processing Op: %v", pathNode.Operation.toString())
if log.IsEnabledFor(logging.DEBUG) {
for el := context.MatchingNodes.Front(); el != nil; el = el.Next() {
for el := matchingNodes.Front(); el != nil; el = el.Next() {
log.Debug(NodeToString(el.Value.(*CandidateNode)))
}
}
log.Debug(">>")
handler := expressionNode.Operation.OperationType.Handler
handler := pathNode.Operation.OperationType.Handler
if handler != nil {
return handler(d, context, expressionNode)
return handler(d, matchingNodes, pathNode)
}
return Context{}, fmt.Errorf("Unknown operator %v", expressionNode.Operation.OperationType)
return nil, fmt.Errorf("Unknown operator %v", pathNode.Operation.OperationType)
}

View File

@@ -1,9 +1,9 @@
Add behaves differently according to the type of the LHS:
- arrays: concatenate
- number scalars: arithmetic addition
- string scalars: concatenate
- number scalars: arithmetic addition (soon)
- string scalars: concatenate (soon)
Use `+=` as append assign for things like increment. Note that `.a += .x` is equivalent to running `.a = .a + .x`.
Use `+=` as append assign for things like increment. `.a += .x` is equivalent to running `.a |= . + .x`.
## Concatenate and assign arrays
Given a sample.yml file of:
@@ -67,19 +67,23 @@ will output
- 2
```
## Add new object to array
## Add object to array
Given a sample.yml file of:
```yaml
a:
- dog: woof
- 1
- 2
c:
cat: meow
```
then
```bash
yq eval '.a + {"cat": "meow"}' sample.yml
yq eval '.a + .c' sample.yml
```
will output
```yaml
- dog: woof
- 1
- 2
- cat: meow
```
@@ -127,97 +131,3 @@ b:
- 4
```
## String concatenation
Given a sample.yml file of:
```yaml
a: cat
b: meow
```
then
```bash
yq eval '.a = .a + .b' sample.yml
```
will output
```yaml
a: catmeow
b: meow
```
## Relative string concatenation
Given a sample.yml file of:
```yaml
a: cat
b: meow
```
then
```bash
yq eval '.a += .b' sample.yml
```
will output
```yaml
a: catmeow
b: meow
```
## Number addition - float
If the lhs or rhs are floats then the expression will be calculated with floats.
Given a sample.yml file of:
```yaml
a: 3
b: 4.9
```
then
```bash
yq eval '.a = .a + .b' sample.yml
```
will output
```yaml
a: 7.9
b: 4.9
```
## Number addition - int
If both the lhs and rhs are ints then the expression will be calculated with ints.
Given a sample.yml file of:
```yaml
a: 3
b: 4
```
then
```bash
yq eval '.a = .a + .b' sample.yml
```
will output
```yaml
a: 7
b: 4
```
## Increment number
Given a sample.yml file of:
```yaml
a: 3
```
then
```bash
yq eval '.a += 1' sample.yml
```
will output
```yaml
a: 4
```
## Add to null
Adding to null simply returns the rhs
Running
```bash
yq eval --null-input 'null + "cat"'
```
will output
```yaml
cat
```

View File

@@ -1,73 +0,0 @@
This operator is used to provide alternative (or default) values when a particular expression is either null or false.
## LHS is defined
Given a sample.yml file of:
```yaml
a: bridge
```
then
```bash
yq eval '.a // "hello"' sample.yml
```
will output
```yaml
bridge
```
## LHS is not defined
Given a sample.yml file of:
```yaml
{}
```
then
```bash
yq eval '.a // "hello"' sample.yml
```
will output
```yaml
hello
```
## LHS is null
Given a sample.yml file of:
```yaml
a: ~
```
then
```bash
yq eval '.a // "hello"' sample.yml
```
will output
```yaml
hello
```
## LHS is false
Given a sample.yml file of:
```yaml
a: false
```
then
```bash
yq eval '.a // "hello"' sample.yml
```
will output
```yaml
hello
```
## RHS is an expression
Given a sample.yml file of:
```yaml
a: false
b: cat
```
then
```bash
yq eval '.a // .b' sample.yml
```
will output
```yaml
cat
```

View File

@@ -1,194 +0,0 @@
Use the `alias` and `anchor` operators to read and write yaml aliases and anchors. The `explode` operator normalises a yaml file (dereference aliases and remove anchor names).
`yq` supports merge aliases (like `<<: *blah`) however this is no longer in the standard yaml spec (1.2) and so `yq` will automatically add the `!!merge` tag to these nodes as it is effectively a custom tag.
## Get anchor
Given a sample.yml file of:
```yaml
a: &billyBob cat
```
then
```bash
yq eval '.a | anchor' sample.yml
```
will output
```yaml
billyBob
```
## Set anchor
Given a sample.yml file of:
```yaml
a: cat
```
then
```bash
yq eval '.a anchor = "foobar"' sample.yml
```
will output
```yaml
a: &foobar cat
```
## Set anchor relatively using assign-update
Given a sample.yml file of:
```yaml
a:
b: cat
```
then
```bash
yq eval '.a anchor |= .b' sample.yml
```
will output
```yaml
a: &cat
b: cat
```
## Get alias
Given a sample.yml file of:
```yaml
b: &billyBob meow
a: *billyBob
```
then
```bash
yq eval '.a | alias' sample.yml
```
will output
```yaml
billyBob
```
## Set alias
Given a sample.yml file of:
```yaml
b: &meow purr
a: cat
```
then
```bash
yq eval '.a alias = "meow"' sample.yml
```
will output
```yaml
b: &meow purr
a: *meow
```
## Set alias relatively using assign-update
Given a sample.yml file of:
```yaml
b: &meow purr
a:
f: meow
```
then
```bash
yq eval '.a alias |= .f' sample.yml
```
will output
```yaml
b: &meow purr
a: *meow
```
## Explode alias and anchor
Given a sample.yml file of:
```yaml
f:
a: &a cat
b: *a
```
then
```bash
yq eval 'explode(.f)' sample.yml
```
will output
```yaml
f:
a: cat
b: cat
```
## Explode with no aliases or anchors
Given a sample.yml file of:
```yaml
a: mike
```
then
```bash
yq eval 'explode(.a)' sample.yml
```
will output
```yaml
a: mike
```
## Explode with alias keys
Given a sample.yml file of:
```yaml
f:
a: &a cat
*a: b
```
then
```bash
yq eval 'explode(.f)' sample.yml
```
will output
```yaml
f:
a: cat
cat: b
```
## Explode with merge anchors
Given a sample.yml file of:
```yaml
foo: &foo
a: foo_a
thing: foo_thing
c: foo_c
bar: &bar
b: bar_b
thing: bar_thing
c: bar_c
foobarList:
b: foobarList_b
!!merge <<:
- *foo
- *bar
c: foobarList_c
foobar:
c: foobar_c
!!merge <<: *foo
thing: foobar_thing
```
then
```bash
yq eval 'explode(.)' sample.yml
```
will output
```yaml
foo:
a: foo_a
thing: foo_thing
c: foo_c
bar:
b: bar_b
thing: bar_thing
c: bar_c
foobarList:
b: bar_b
a: foo_a
thing: bar_thing
c: foobarList_c
foobar:
c: foo_c
a: foo_a
thing: foobar_thing
```

View File

@@ -34,27 +34,6 @@ a:
g: foof
```
## Update node from another file
Note this will also work when the second file is a scalar (string/number)
Given a sample.yml file of:
```yaml
a: apples
```
And another sample another.yml file of:
```yaml
b: bob
```
then
```bash
yq eval-all 'select(fileIndex==0).a = select(fileIndex==1) | select(fileIndex==0)' sample.yml another.yml
```
will output
```yaml
a:
b: bob
```
## Update node to be the sibling value
Given a sample.yml file of:
```yaml
@@ -133,7 +112,7 @@ a:
```
then
```bash
yq eval '(.a[] | select(. == "apple")) = "frog"' sample.yml
yq eval '(.a.[] | select(. == "apple")) = "frog"' sample.yml
```
will output
```yaml

View File

@@ -13,22 +13,6 @@ will output
a: cat # single
```
## Use update assign to perform relative updates
Given a sample.yml file of:
```yaml
a: cat
b: dog
```
then
```bash
yq eval '.. lineComment |= .' sample.yml
```
will output
```yaml
a: cat # cat
b: dog # dog
```
## Set head comment
Given a sample.yml file of:
```yaml
@@ -78,22 +62,17 @@ b: dog # leave this
```
## Remove all comments
Note the use of `...` to ensure key nodes are included.
Given a sample.yml file of:
```yaml
a: cat # comment
# great
b: # key comment
```
then
```bash
yq eval '... comments=""' sample.yml
yq eval '.. comments=""' sample.yml
```
will output
```yaml
a: cat
b:
```
## Get line comment

View File

@@ -14,23 +14,6 @@ will output
a: cat
```
## Delete nested entry in map
Given a sample.yml file of:
```yaml
a:
a1: fred
a2: frood
```
then
```bash
yq eval 'del(.a.a1)' sample.yml
```
will output
```yaml
a:
a2: frood
```
## Delete entry in array
Given a sample.yml file of:
```yaml
@@ -48,21 +31,6 @@ will output
- 3
```
## Delete nested entry in array
Given a sample.yml file of:
```yaml
- a: cat
b: dog
```
then
```bash
yq eval 'del(.[0].a)' sample.yml
```
will output
```yaml
- b: dog
```
## Delete no matches
Given a sample.yml file of:
```yaml
@@ -95,23 +63,3 @@ will output
b: dog
```
## Recursively delete matching keys
Given a sample.yml file of:
```yaml
a:
name: frog
b:
name: blog
age: 12
```
then
```bash
yq eval 'del(.. | select(has("name")).name)' sample.yml
```
will output
```yaml
a:
b:
age: 12
```

View File

@@ -1,4 +1,4 @@
Use the `documentIndex` operator (or the `di` shorthand) to select nodes of a particular document.
Use the `documentIndex` operator to select nodes of a particular document.
## Retrieve a document index
Given a sample.yml file of:
```yaml
@@ -17,24 +17,6 @@ will output
1
```
## Retrieve a document index, shorthand
Given a sample.yml file of:
```yaml
a: cat
---
a: frog
```
then
```bash
yq eval '.a | di' sample.yml
```
will output
```yaml
0
---
1
```
## Filter by document index
Given a sample.yml file of:
```yaml
@@ -44,23 +26,7 @@ a: frog
```
then
```bash
yq eval 'select(documentIndex == 1)' sample.yml
```
will output
```yaml
a: frog
```
## Filter by document index shorthand
Given a sample.yml file of:
```yaml
a: cat
---
a: frog
```
then
```bash
yq eval 'select(di == 1)' sample.yml
yq eval 'select(. | documentIndex == 1)' sample.yml
```
will output
```yaml
@@ -76,7 +42,7 @@ a: frog
```
then
```bash
yq eval '.a | ({"match": ., "doc": documentIndex})' sample.yml
yq eval '.a | ({"match": ., "doc": (. | documentIndex)})' sample.yml
```
will output
```yaml

View File

@@ -1,78 +0,0 @@
This operator is used to handle environment variables usage in path expressions. While environment variables can, of course, be passed in via your CLI with string interpolation, this often comes with complex quote escaping and can be tricky to write and read. Note that there are two forms, `env` which will parse the environment variable as a yaml (be it a map, array, string, number of boolean) and `strenv` which will always parse the argument as a string.
## Read string environment variable
Running
```bash
myenv="cat meow" yq eval --null-input '.a = env(myenv)'
```
will output
```yaml
a: cat meow
```
## Read boolean environment variable
Running
```bash
myenv="true" yq eval --null-input '.a = env(myenv)'
```
will output
```yaml
a: true
```
## Read numeric environment variable
Running
```bash
myenv="12" yq eval --null-input '.a = env(myenv)'
```
will output
```yaml
a: 12
```
## Read yaml environment variable
Running
```bash
myenv="{b: fish}" yq eval --null-input '.a = env(myenv)'
```
will output
```yaml
a: {b: fish}
```
## Read boolean environment variable as a string
Running
```bash
myenv="true" yq eval --null-input '.a = strenv(myenv)'
```
will output
```yaml
a: "true"
```
## Read numeric environment variable as a string
Running
```bash
myenv="12" yq eval --null-input '.a = strenv(myenv)'
```
will output
```yaml
a: "12"
```
## Dynamic key lookup with environment variable
Given a sample.yml file of:
```yaml
cat: meow
dog: woof
```
then
```bash
myenv="cat" yq eval '.[env(myenv)]' sample.yml
```
will output
```yaml
meow
```

98
pkg/yqlib/doc/Explode.md Normal file
View File

@@ -0,0 +1,98 @@
Explodes (or dereferences) aliases and anchors.
## Explode alias and anchor
Given a sample.yml file of:
```yaml
f:
a: &a cat
b: *a
```
then
```bash
yq eval 'explode(.f)' sample.yml
```
will output
```yaml
f:
a: cat
b: cat
```
## Explode with no aliases or anchors
Given a sample.yml file of:
```yaml
a: mike
```
then
```bash
yq eval 'explode(.a)' sample.yml
```
will output
```yaml
a: mike
```
## Explode with alias keys
Given a sample.yml file of:
```yaml
f:
a: &a cat
*a: b
```
then
```bash
yq eval 'explode(.f)' sample.yml
```
will output
```yaml
f:
a: cat
cat: b
```
## Explode with merge anchors
Given a sample.yml file of:
```yaml
foo: &foo
a: foo_a
thing: foo_thing
c: foo_c
bar: &bar
b: bar_b
thing: bar_thing
c: bar_c
foobarList:
b: foobarList_b
!!merge <<:
- *foo
- *bar
c: foobarList_c
foobar:
c: foobar_c
!!merge <<: *foo
thing: foobar_thing
```
then
```bash
yq eval 'explode(.)' sample.yml
```
will output
```yaml
foo:
a: foo_a
thing: foo_thing
c: foo_c
bar:
b: bar_b
thing: bar_thing
c: bar_c
foobarList:
b: bar_b
a: foo_a
thing: bar_thing
c: foobarList_c
foobar:
c: foo_c
a: foo_a
thing: foobar_thing
```

View File

@@ -1,11 +1,9 @@
File operators are most often used with merge when needing to merge specific files together. Note that when doing this, you will need to use `eval-all` to ensure all yaml documents are loaded into memory before performing the merge (as opposed to `eval` which runs the expression once per document).
Note that the `fileIndex` operator has a short alias of `fi`.
## Merging files
Note the use of eval-all to ensure all documents are loaded into memory.
```bash
yq eval-all 'select(fi == 0) * select(filename == "file2.yaml")' file1.yaml file2.yaml
yq eval-all 'select(fileIndex == 0) * select(filename == "file2.yaml")' file1.yaml file2.yaml
```
## Get filename
Given a sample.yml file of:
@@ -18,7 +16,7 @@ yq eval 'filename' sample.yml
```
will output
```yaml
sample.yml
sample.yaml
```
## Get file index
@@ -35,17 +33,3 @@ will output
0
```
## Get file index alias
Given a sample.yml file of:
```yaml
a: cat
```
then
```bash
yq eval 'fi' sample.yml
```
will output
```yaml
0
```

View File

@@ -1,35 +0,0 @@
# Keys
Use the `keys` operator to return map keys or array indices.
## Map keys
Given a sample.yml file of:
```yaml
dog: woof
cat: meow
```
then
```bash
yq eval 'keys' sample.yml
```
will output
```yaml
- dog
- cat
```
## Array keys
Given a sample.yml file of:
```yaml
- apple
- banana
```
then
```bash
yq eval 'keys' sample.yml
```
will output
```yaml
- 0
- 1
```

View File

@@ -16,20 +16,6 @@ will output
3
```
## null length
Given a sample.yml file of:
```yaml
a: null
```
then
```bash
yq eval '.a | length' sample.yml
```
will output
```yaml
0
```
## Map length
returns number of entries

View File

@@ -1,14 +1,13 @@
Like the multiple operator in jq, depending on the operands, this multiply operator will do different things. Currently only objects are supported, which have the effect of merging the RHS into the LHS.
Like the multiple operator in `jq`, depending on the operands, this multiply operator will do different things. Currently only objects are supported, which have the effect of merging the RHS into the LHS.
To concatenate arrays when merging objects, use the *+ form (see examples below). This will recursively merge objects, appending arrays when it encounters them.
Upcoming versions of `yq` will add support for other types of multiplication (numbers, strings).
To concatenate when merging objects, use the `*+` form (see examples below). This will recursively merge objects, appending arrays when it encounters them.
To merge only existing fields, use the *? form. Note that this can be used with the concatenate arrays too *+?.
Note that when merging objects, this operator returns the merged object (not the parent). This will be clearer in the examples below.
Multiplication of strings and numbers are not yet supported.
## Merging files
Note the use of `eval-all` to ensure all documents are loaded into memory.
Note the use of eval-all to ensure all documents are loaded into memory.
```bash
yq eval-all 'select(fileIndex == 0) * select(fileIndex == 1)' file1.yaml file2.yaml
@@ -112,26 +111,6 @@ b:
- 5
```
## Merge, only existing fields
Given a sample.yml file of:
```yaml
a:
thing: one
cat: frog
b:
missing: two
thing: two
```
then
```bash
yq eval '.a *? .b' sample.yml
```
will output
```yaml
thing: two
cat: frog
```
## Merge, appending arrays
Given a sample.yml file of:
```yaml
@@ -164,33 +143,6 @@ array:
value: banana
```
## Merge, only existing fields, appending arrays
Given a sample.yml file of:
```yaml
a:
thing:
- 1
- 2
b:
thing:
- 3
- 4
another:
- 1
```
then
```bash
yq eval '.a *?+ .b' sample.yml
```
will output
```yaml
thing:
- 1
- 2
- 3
- 4
```
## Merge to prefix an element
Given a sample.yml file of:
```yaml
@@ -228,7 +180,7 @@ g: thongs
f: *cat
```
## Merge copies anchor names
## Merge does not copy anchor names
Given a sample.yml file of:
```yaml
a:
@@ -245,7 +197,7 @@ yq eval '.c * .a' sample.yml
will output
```yaml
g: thongs
c: &cat frog
c: frog
```
## Merge with merge anchors

View File

@@ -1,154 +0,0 @@
This operator recursively matches (or globs) all children nodes given of a particular element, including that node itself. This is most often used to apply a filter recursively against all matches. It can be used in either the
## match values form `..`
This will, like the `jq` equivalent, recursively match all _value_ nodes. Use it to find/manipulate particular values.
For instance to set the `style` of all _value_ nodes in a yaml doc, excluding map keys:
```bash
yq eval '.. style= "flow"' file.yaml
```
## match values and map keys form `...`
The also includes map keys in the results set. This is particularly useful in YAML as unlike JSON, map keys can have their own styling, tags and use anchors and aliases.
For instance to set the `style` of all nodes in a yaml doc, including the map keys:
```bash
yq eval '... style= "flow"' file.yaml
```
## Recurse map (values only)
Given a sample.yml file of:
```yaml
a: frog
```
then
```bash
yq eval '..' sample.yml
```
will output
```yaml
a: frog
frog
```
## Recursively find nodes with keys
Note that this example has wrapped the expression in `[]` to show that there are two matches returned. You do not have to wrap in `[]` in your path expression.
Given a sample.yml file of:
```yaml
a:
name: frog
b:
name: blog
age: 12
```
then
```bash
yq eval '[.. | select(has("name"))]' sample.yml
```
will output
```yaml
- name: frog
b:
name: blog
age: 12
- name: blog
age: 12
```
## Recursively find nodes with values
Given a sample.yml file of:
```yaml
a:
nameA: frog
b:
nameB: frog
age: 12
```
then
```bash
yq eval '.. | select(. == "frog")' sample.yml
```
will output
```yaml
frog
frog
```
## Recurse map (values and keys)
Note that the map key appears in the results
Given a sample.yml file of:
```yaml
a: frog
```
then
```bash
yq eval '...' sample.yml
```
will output
```yaml
a: frog
a
frog
```
## Aliases are not traversed
Given a sample.yml file of:
```yaml
a: &cat
c: frog
b: *cat
```
then
```bash
yq eval '[..]' sample.yml
```
will output
```yaml
- a: &cat
c: frog
b: *cat
- &cat
c: frog
- frog
- *cat
```
## Merge docs are not traversed
Given a sample.yml file of:
```yaml
foo: &foo
a: foo_a
thing: foo_thing
c: foo_c
bar: &bar
b: bar_b
thing: bar_thing
c: bar_c
foobarList:
b: foobarList_b
!!merge <<:
- *foo
- *bar
c: foobarList_c
foobar:
c: foobar_c
!!merge <<: *foo
thing: foobar_thing
```
then
```bash
yq eval '.foobar | [..]' sample.yml
```
will output
```yaml
- c: foobar_c
!!merge <<: *foo
thing: foobar_thing
- foobar_c
- *foo
- foobar_thing
```

View File

@@ -0,0 +1,63 @@
This operator recursively matches all children nodes given of a particular element, including that node itself. This is most often used to apply a filter recursively against all matches, for instance to set the `style` of all nodes in a yaml doc:
```bash
yq eval '.. style= "flow"' file.yaml
```
## Aliases are not traversed
Given a sample.yml file of:
```yaml
a: &cat
c: frog
b: *cat
```
then
```bash
yq eval '[..]' sample.yml
```
will output
```yaml
- a: &cat
c: frog
b: *cat
- &cat
c: frog
- frog
- *cat
```
## Merge docs are not traversed
Given a sample.yml file of:
```yaml
foo: &foo
a: foo_a
thing: foo_thing
c: foo_c
bar: &bar
b: bar_b
thing: bar_thing
c: bar_c
foobarList:
b: foobarList_b
!!merge <<:
- *foo
- *bar
c: foobarList_c
foobar:
c: foobar_c
!!merge <<: *foo
thing: foobar_thing
```
then
```bash
yq eval '.foobar | [..]' sample.yml
```
will output
```yaml
- c: foobar_c
!!merge <<: *foo
thing: foobar_thing
- foobar_c
- *foo
- foobar_thing
```

View File

@@ -1,31 +0,0 @@
# Split into Documents
This operator splits all matches into separate documents
## Split empty
Running
```bash
yq eval --null-input 'splitDoc'
```
will output
```yaml
```
## Split array
Given a sample.yml file of:
```yaml
- a: cat
- b: dog
```
then
```bash
yq eval '.[] | splitDoc' sample.yml
```
will output
```yaml
a: cat
---
b: dog
```

View File

@@ -1,52 +0,0 @@
# String Operators
## Join strings
Given a sample.yml file of:
```yaml
- cat
- meow
- 1
- null
- true
```
then
```bash
yq eval 'join("; ")' sample.yml
```
will output
```yaml
cat; meow; 1; ; true
```
## Split strings
Given a sample.yml file of:
```yaml
cat; meow; 1; ; true
```
then
```bash
yq eval 'split("; ")' sample.yml
```
will output
```yaml
- cat
- meow
- "1"
- ""
- "true"
```
## Split strings one match
Given a sample.yml file of:
```yaml
word
```
then
```bash
yq eval 'split("; ")' sample.yml
```
will output
```yaml
- word
```

View File

@@ -40,26 +40,6 @@ c: "3.2"
e: "true"
```
## Set double quote style on map keys too
Given a sample.yml file of:
```yaml
a: cat
b: 5
c: 3.2
e: true
```
then
```bash
yq eval '... style="double"' sample.yml
```
will output
```yaml
"a": "cat"
"b": "5"
"c": "3.2"
"e": "true"
```
## Set single quote style
Given a sample.yml file of:
```yaml
@@ -145,19 +125,19 @@ will output
{a: cat, b: 5, c: 3.2, e: true}
```
## Reset style - or pretty print
Set empty (default) quote style, note the usage of `...` to match keys too. Note that there is a `--prettyPrint/-P` short flag for this.
## Pretty print
Set empty (default) quote style
Given a sample.yml file of:
```yaml
a: cat
"b": 5
'c': 3.2
"e": true
b: 5
c: 3.2
e: true
```
then
```bash
yq eval '... style=""' sample.yml
yq eval '.. style=""' sample.yml
```
will output
```yaml
@@ -167,22 +147,6 @@ c: 3.2
e: true
```
## Set style relatively with assign-update
Given a sample.yml file of:
```yaml
a: single
b: double
```
then
```bash
yq eval '.[] style |= .' sample.yml
```
will output
```yaml
a: 'single'
b: "double"
```
## Read style
Given a sample.yml file of:
```yaml

View File

@@ -22,21 +22,7 @@ will output
!!seq
```
## Set custom tag
Given a sample.yml file of:
```yaml
a: str
```
then
```bash
yq eval '.a tag = "!!mikefarah"' sample.yml
```
will output
```yaml
a: !!mikefarah str
```
## Find numbers and convert them to strings
## Convert numbers to strings
Given a sample.yml file of:
```yaml
a: cat

View File

@@ -48,24 +48,6 @@ will output
frog
```
## Dynamic keys
Expressions within [] can be used to dynamically lookup / calculate keys
Given a sample.yml file of:
```yaml
b: apple
apple: crispy yum
banana: soft yum
```
then
```bash
yq eval '.[.b]' sample.yml
```
will output
```yaml
crispy yum
```
## Children don't exist
Nodes are added dynamically while traversing
@@ -124,7 +106,7 @@ b: *cat
```
then
```bash
yq eval '.b[]' sample.yml
yq eval '.b.[]' sample.yml
```
will output
```yaml
@@ -308,7 +290,7 @@ foobar:
```
then
```bash
yq eval '.foobar[]' sample.yml
yq eval '.foobar.[]' sample.yml
```
will output
```yaml
@@ -374,7 +356,7 @@ foobar:
```
then
```bash
yq eval '.foobarList[]' sample.yml
yq eval '.foobarList.[]' sample.yml
```
will output
```yaml
@@ -384,21 +366,3 @@ bar_thing
foobarList_c
```
## Select multiple indices
Given a sample.yml file of:
```yaml
a:
- a
- b
- c
```
then
```bash
yq eval '.a[0, 2]' sample.yml
```
will output
```yaml
a
c
```

View File

@@ -1,12 +0,0 @@
# Operators
In `yq` expressions are made up of operators. Operators have 0-2 arguments and run against the current 'matching' nodes in the expression tree.
Lets look at a couple of examples.
The `length` operator take no arguments, and will simply return the length of _each_ matching node. So if there were 2 nodes, one string and one array, length will update the 'matching' nodes context to be two new numeric scalar nodes representing the lengths of the orignal 'matching' nodes.
The `=` operator takes two arguments, a `lhs` expression and `rhs` expression. It runs the 'matching' nodes context against the `lhs` expression to find the nodes to update, lets call it `lhsNodes`, and then runs the matching nodes against the `rhs` to find the new values, lets call that `rhsNodes`. It updates the `lhsNodes` values with the `rhsNodes` values and _returns the original matching nodes_. This is important, where length changed the matching nodes to be new nodes with the length values, `=` returns the original matching nodes, albeit with some of the nodes values updated. So `.a = 3` will still return the parent matching node, but with the matching child updated.
Please see the individual operator docs for more information and examples.

View File

@@ -1,6 +1,6 @@
Add behaves differently according to the type of the LHS:
- arrays: concatenate
- number scalars: arithmetic addition
- string scalars: concatenate
- number scalars: arithmetic addition (soon)
- string scalars: concatenate (soon)
Use `+=` as append assign for things like increment. Note that `.a += .x` is equivalent to running `.a = .a + .x`.
Use `+=` as append assign for things like increment. `.a += .x` is equivalent to running `.a |= . + .x`.

View File

@@ -1 +0,0 @@
This operator is used to provide alternative (or default) values when a particular expression is either null or false.

View File

@@ -1,4 +0,0 @@
Use the `alias` and `anchor` operators to read and write yaml aliases and anchors. The `explode` operator normalises a yaml file (dereference aliases and remove anchor names).
`yq` supports merge aliases (like `<<: *blah`) however this is no longer in the standard yaml spec (1.2) and so `yq` will automatically add the `!!merge` tag to these nodes as it is effectively a custom tag.

View File

@@ -1 +1 @@
Use the `documentIndex` operator (or the `di` shorthand) to select nodes of a particular document.
Use the `documentIndex` operator to select nodes of a particular document.

View File

@@ -1,2 +0,0 @@
This operator is used to handle environment variables usage in path expressions. While environment variables can, of course, be passed in via your CLI with string interpolation, this often comes with complex quote escaping and can be tricky to write and read. Note that there are two forms, `env` which will parse the environment variable as a yaml (be it a map, array, string, number of boolean) and `strenv` which will always parse the argument as a string.

View File

@@ -0,0 +1 @@
Explodes (or dereferences) aliases and anchors.

View File

@@ -1,9 +1,7 @@
File operators are most often used with merge when needing to merge specific files together. Note that when doing this, you will need to use `eval-all` to ensure all yaml documents are loaded into memory before performing the merge (as opposed to `eval` which runs the expression once per document).
Note that the `fileIndex` operator has a short alias of `fi`.
## Merging files
Note the use of eval-all to ensure all documents are loaded into memory.
```bash
yq eval-all 'select(fi == 0) * select(filename == "file2.yaml")' file1.yaml file2.yaml
yq eval-all 'select(fileIndex == 0) * select(filename == "file2.yaml")' file1.yaml file2.yaml
```

View File

@@ -1,3 +0,0 @@
# Keys
Use the `keys` operator to return map keys or array indices.

View File

@@ -1,14 +1,13 @@
Like the multiple operator in jq, depending on the operands, this multiply operator will do different things. Currently only objects are supported, which have the effect of merging the RHS into the LHS.
Like the multiple operator in `jq`, depending on the operands, this multiply operator will do different things. Currently only objects are supported, which have the effect of merging the RHS into the LHS.
To concatenate arrays when merging objects, use the *+ form (see examples below). This will recursively merge objects, appending arrays when it encounters them.
Upcoming versions of `yq` will add support for other types of multiplication (numbers, strings).
To concatenate when merging objects, use the `*+` form (see examples below). This will recursively merge objects, appending arrays when it encounters them.
To merge only existing fields, use the *? form. Note that this can be used with the concatenate arrays too *+?.
Note that when merging objects, this operator returns the merged object (not the parent). This will be clearer in the examples below.
Multiplication of strings and numbers are not yet supported.
## Merging files
Note the use of `eval-all` to ensure all documents are loaded into memory.
Note the use of eval-all to ensure all documents are loaded into memory.
```bash
yq eval-all 'select(fileIndex == 0) * select(fileIndex == 1)' file1.yaml file2.yaml

View File

@@ -1,19 +0,0 @@
This operator recursively matches (or globs) all children nodes given of a particular element, including that node itself. This is most often used to apply a filter recursively against all matches. It can be used in either the
## match values form `..`
This will, like the `jq` equivalent, recursively match all _value_ nodes. Use it to find/manipulate particular values.
For instance to set the `style` of all _value_ nodes in a yaml doc, excluding map keys:
```bash
yq eval '.. style= "flow"' file.yaml
```
## match values and map keys form `...`
The also includes map keys in the results set. This is particularly useful in YAML as unlike JSON, map keys can have their own styling, tags and use anchors and aliases.
For instance to set the `style` of all nodes in a yaml doc, including the map keys:
```bash
yq eval '... style= "flow"' file.yaml
```

View File

@@ -0,0 +1,5 @@
This operator recursively matches all children nodes given of a particular element, including that node itself. This is most often used to apply a filter recursively against all matches, for instance to set the `style` of all nodes in a yaml doc:
```bash
yq eval '.. style= "flow"' file.yaml
```

View File

@@ -1,3 +0,0 @@
# Split into Documents
This operator splits all matches into separate documents

View File

@@ -1 +0,0 @@
# String Operators

View File

@@ -50,7 +50,7 @@ func (ye *yamlEncoder) Encode(node *yaml.Node) error {
}
if ye.colorise {
return colorizeAndPrint(tempBuffer.Bytes(), ye.destination)
return ColorizeAndPrint(tempBuffer.Bytes(), ye.destination)
}
return nil
}
@@ -76,8 +76,6 @@ func mapKeysToStrings(node *yaml.Node) {
func NewJsonEncoder(destination io.Writer, indent int) Encoder {
var encoder = json.NewEncoder(destination)
encoder.SetEscapeHTML(false) // do not escape html chars e.g. &, <, >
var indentString = ""
for index := 0; index < indent; index++ {
@@ -155,15 +153,11 @@ func (o *orderedMap) UnmarshalJSON(data []byte) error {
}
func (o orderedMap) MarshalJSON() ([]byte, error) {
if o.kv == nil {
return json.Marshal(o.altVal)
}
buf := new(bytes.Buffer)
enc := json.NewEncoder(buf)
enc.SetEscapeHTML(false) // do not escape html chars e.g. &, <, >
if o.kv == nil {
if err := enc.Encode(o.altVal); err != nil {
return nil, err
}
return buf.Bytes(), nil
}
buf.WriteByte('{')
for idx, el := range o.kv {
if err := enc.Encode(el.K); err != nil {

View File

@@ -9,11 +9,29 @@ import (
"github.com/mikefarah/yq/v4/test"
)
func yamlToJson(sampleYaml string, indent int) string {
var sampleYaml = `zabbix: winner
apple: great
banana:
- {cobra: kai, angus: bob}
`
var expectedJson = `{
"zabbix": "winner",
"apple": "great",
"banana": [
{
"cobra": "kai",
"angus": "bob"
}
]
}
`
func TestJsonEncoderPreservesObjectOrder(t *testing.T) {
var output bytes.Buffer
writer := bufio.NewWriter(&output)
var jsonEncoder = NewJsonEncoder(writer, indent)
var jsonEncoder = NewJsonEncoder(writer, 2)
inputs, err := readDocuments(strings.NewReader(sampleYaml), "sample.yml", 0)
if err != nil {
panic(err)
@@ -24,33 +42,6 @@ func yamlToJson(sampleYaml string, indent int) string {
panic(err)
}
writer.Flush()
test.AssertResult(t, expectedJson, output.String())
return strings.TrimSuffix(output.String(), "\n")
}
func TestJsonEncoderPreservesObjectOrder(t *testing.T) {
var sampleYaml = `zabbix: winner
apple: great
banana:
- {cobra: kai, angus: bob}
`
var expectedJson = `{
"zabbix": "winner",
"apple": "great",
"banana": [
{
"cobra": "kai",
"angus": "bob"
}
]
}`
var actualJson = yamlToJson(sampleYaml, 2)
test.AssertResult(t, expectedJson, actualJson)
}
func TestJsonEncoderDoesNotEscapeHTMLChars(t *testing.T) {
var sampleYaml = `build: "( ./lint && ./format && ./compile ) < src.code"`
var expectedJson = `{"build":"( ./lint && ./format && ./compile ) < src.code"}`
var actualJson = yamlToJson(sampleYaml, 0)
test.AssertResult(t, expectedJson, actualJson)
}

View File

@@ -1,76 +0,0 @@
package yqlib
import (
"fmt"
"strings"
)
var myPathTokeniser = newExpressionTokeniser()
var myPathPostfixer = newExpressionPostFixer()
type ExpressionNode struct {
Operation *Operation
Lhs *ExpressionNode
Rhs *ExpressionNode
}
type ExpressionParser interface {
ParseExpression(expression string) (*ExpressionNode, error)
}
type expressionParserImpl struct {
}
func NewExpressionParser() ExpressionParser {
return &expressionParserImpl{}
}
func (p *expressionParserImpl) ParseExpression(expression string) (*ExpressionNode, error) {
tokens, err := myPathTokeniser.Tokenise(expression)
if err != nil {
return nil, err
}
var Operations []*Operation
Operations, err = myPathPostfixer.ConvertToPostfix(tokens)
if err != nil {
return nil, err
}
return p.createExpressionTree(Operations)
}
func (p *expressionParserImpl) createExpressionTree(postFixPath []*Operation) (*ExpressionNode, error) {
var stack = make([]*ExpressionNode, 0)
if len(postFixPath) == 0 {
return nil, nil
}
for _, Operation := range postFixPath {
var newNode = ExpressionNode{Operation: Operation}
log.Debugf("pathTree %v ", Operation.toString())
if Operation.OperationType.NumArgs > 0 {
numArgs := Operation.OperationType.NumArgs
if numArgs == 1 {
if len(stack) < 1 {
return nil, fmt.Errorf("'%v' expects 1 arg but received none", strings.TrimSpace(Operation.StringValue))
}
remaining, rhs := stack[:len(stack)-1], stack[len(stack)-1]
newNode.Rhs = rhs
stack = remaining
} else if numArgs == 2 {
if len(stack) < 2 {
return nil, fmt.Errorf("'%v' expects 2 args but there is %v", strings.TrimSpace(Operation.StringValue), len(stack))
}
remaining, lhs, rhs := stack[:len(stack)-2], stack[len(stack)-2], stack[len(stack)-1]
newNode.Lhs = lhs
newNode.Rhs = rhs
stack = remaining
}
}
stack = append(stack, &newNode)
}
if len(stack) != 1 {
return nil, fmt.Errorf("expected end of expression but found '%v', please check expression syntax", strings.TrimSpace(stack[1].Operation.StringValue))
}
return stack[0], nil
}

View File

@@ -1,42 +0,0 @@
package yqlib
import (
"testing"
"github.com/mikefarah/yq/v4/test"
)
func TestPathTreeNoArgsForTwoArgOp(t *testing.T) {
_, err := NewExpressionParser().ParseExpression("=")
test.AssertResultComplex(t, "'=' expects 2 args but there is 0", err.Error())
}
func TestPathTreeOneLhsArgsForTwoArgOp(t *testing.T) {
_, err := NewExpressionParser().ParseExpression(".a =")
test.AssertResultComplex(t, "'=' expects 2 args but there is 1", err.Error())
}
func TestPathTreeOneRhsArgsForTwoArgOp(t *testing.T) {
_, err := NewExpressionParser().ParseExpression("= .a")
test.AssertResultComplex(t, "'=' expects 2 args but there is 1", err.Error())
}
func TestPathTreeTwoArgsForTwoArgOp(t *testing.T) {
_, err := NewExpressionParser().ParseExpression(".a = .b")
test.AssertResultComplex(t, nil, err)
}
func TestPathTreeNoArgsForOneArgOp(t *testing.T) {
_, err := NewExpressionParser().ParseExpression("explode")
test.AssertResultComplex(t, "'explode' expects 1 arg but received none", err.Error())
}
func TestPathTreeOneArgForOneArgOp(t *testing.T) {
_, err := NewExpressionParser().ParseExpression("explode(.)")
test.AssertResultComplex(t, nil, err)
}
func TestPathTreeExtraArgs(t *testing.T) {
_, err := NewExpressionParser().ParseExpression("sortKeys(.) explode(.)")
test.AssertResultComplex(t, "expected end of expression but found 'explode', please check expression syntax", err.Error())
}

View File

@@ -1,412 +0,0 @@
package yqlib
import (
"fmt"
"strconv"
"strings"
lex "github.com/timtadh/lexmachine"
"github.com/timtadh/lexmachine/machines"
)
func skip(*lex.Scanner, *machines.Match) (interface{}, error) {
return nil, nil
}
type tokenType uint32
const (
operationToken = 1 << iota
openBracket
closeBracket
openCollect
closeCollect
openCollectObject
closeCollectObject
traverseArrayCollect
)
type token struct {
TokenType tokenType
Operation *Operation
AssignOperation *Operation // e.g. tag (GetTag) op becomes AssignTag if '=' follows it
CheckForPostTraverse bool // e.g. [1]cat should really be [1].cat
}
func (t *token) toString() string {
if t.TokenType == operationToken {
log.Debug("toString, its an op")
return t.Operation.toString()
} else if t.TokenType == openBracket {
return "("
} else if t.TokenType == closeBracket {
return ")"
} else if t.TokenType == openCollect {
return "["
} else if t.TokenType == closeCollect {
return "]"
} else if t.TokenType == openCollectObject {
return "{"
} else if t.TokenType == closeCollectObject {
return "}"
} else if t.TokenType == traverseArrayCollect {
return ".["
} else {
return "NFI"
}
}
func pathToken(wrapped bool) lex.Action {
return func(s *lex.Scanner, m *machines.Match) (interface{}, error) {
value := string(m.Bytes)
value = value[1:]
if wrapped {
value = unwrap(value)
}
log.Debug("PathToken %v", value)
op := &Operation{OperationType: traversePathOpType, Value: value, StringValue: value, Preferences: traversePreferences{}}
return &token{TokenType: operationToken, Operation: op, CheckForPostTraverse: true}, nil
}
}
func opToken(op *operationType) lex.Action {
return opTokenWithPrefs(op, nil, nil)
}
func opAssignableToken(opType *operationType, assignOpType *operationType) lex.Action {
return opTokenWithPrefs(opType, assignOpType, nil)
}
func assignOpToken(updateAssign bool) lex.Action {
return func(s *lex.Scanner, m *machines.Match) (interface{}, error) {
log.Debug("assignOpToken %v", string(m.Bytes))
value := string(m.Bytes)
op := &Operation{OperationType: assignOpType, Value: assignOpType.Type, StringValue: value, UpdateAssign: updateAssign}
return &token{TokenType: operationToken, Operation: op}, nil
}
}
func multiplyWithPrefs() lex.Action {
return func(s *lex.Scanner, m *machines.Match) (interface{}, error) {
prefs := multiplyPreferences{}
options := string(m.Bytes)
if strings.Contains(options, "+") {
prefs.AppendArrays = true
}
if strings.Contains(options, "?") {
prefs.TraversePrefs = traversePreferences{DontAutoCreate: true}
}
op := &Operation{OperationType: multiplyOpType, Value: multiplyOpType.Type, StringValue: options, Preferences: prefs}
return &token{TokenType: operationToken, Operation: op}, nil
}
}
func opTokenWithPrefs(op *operationType, assignOpType *operationType, preferences interface{}) lex.Action {
return func(s *lex.Scanner, m *machines.Match) (interface{}, error) {
log.Debug("opTokenWithPrefs %v", string(m.Bytes))
value := string(m.Bytes)
op := &Operation{OperationType: op, Value: op.Type, StringValue: value, Preferences: preferences}
var assign *Operation
if assignOpType != nil {
assign = &Operation{OperationType: assignOpType, Value: assignOpType.Type, StringValue: value, Preferences: preferences}
}
return &token{TokenType: operationToken, Operation: op, AssignOperation: assign}, nil
}
}
func assignAllCommentsOp(updateAssign bool) lex.Action {
return func(s *lex.Scanner, m *machines.Match) (interface{}, error) {
log.Debug("assignAllCommentsOp %v", string(m.Bytes))
value := string(m.Bytes)
op := &Operation{
OperationType: assignCommentOpType,
Value: assignCommentOpType.Type,
StringValue: value,
UpdateAssign: updateAssign,
Preferences: commentOpPreferences{LineComment: true, HeadComment: true, FootComment: true},
}
return &token{TokenType: operationToken, Operation: op}, nil
}
}
func literalToken(pType tokenType, checkForPost bool) lex.Action {
return func(s *lex.Scanner, m *machines.Match) (interface{}, error) {
return &token{TokenType: pType, CheckForPostTraverse: checkForPost}, nil
}
}
func unwrap(value string) string {
return value[1 : len(value)-1]
}
func numberValue() lex.Action {
return func(s *lex.Scanner, m *machines.Match) (interface{}, error) {
var numberString = string(m.Bytes)
var number, errParsingInt = strconv.ParseInt(numberString, 10, 64) // nolint
if errParsingInt != nil {
return nil, errParsingInt
}
return &token{TokenType: operationToken, Operation: createValueOperation(number, numberString)}, nil
}
}
func floatValue() lex.Action {
return func(s *lex.Scanner, m *machines.Match) (interface{}, error) {
var numberString = string(m.Bytes)
var number, errParsingInt = strconv.ParseFloat(numberString, 64) // nolint
if errParsingInt != nil {
return nil, errParsingInt
}
return &token{TokenType: operationToken, Operation: createValueOperation(number, numberString)}, nil
}
}
func booleanValue(val bool) lex.Action {
return func(s *lex.Scanner, m *machines.Match) (interface{}, error) {
return &token{TokenType: operationToken, Operation: createValueOperation(val, string(m.Bytes))}, nil
}
}
func stringValue(wrapped bool) lex.Action {
return func(s *lex.Scanner, m *machines.Match) (interface{}, error) {
value := string(m.Bytes)
if wrapped {
value = unwrap(value)
}
return &token{TokenType: operationToken, Operation: createValueOperation(value, value)}, nil
}
}
func envOp(strenv bool) lex.Action {
return func(s *lex.Scanner, m *machines.Match) (interface{}, error) {
value := string(m.Bytes)
preferences := envOpPreferences{}
if strenv {
// strenv( )
value = value[7 : len(value)-1]
preferences.StringValue = true
} else {
//env( )
value = value[4 : len(value)-1]
}
envOperation := createValueOperation(value, value)
envOperation.OperationType = envOpType
envOperation.Preferences = preferences
return &token{TokenType: operationToken, Operation: envOperation}, nil
}
}
func nullValue() lex.Action {
return func(s *lex.Scanner, m *machines.Match) (interface{}, error) {
return &token{TokenType: operationToken, Operation: createValueOperation(nil, string(m.Bytes))}, nil
}
}
func selfToken() lex.Action {
return func(s *lex.Scanner, m *machines.Match) (interface{}, error) {
op := &Operation{OperationType: selfReferenceOpType}
return &token{TokenType: operationToken, Operation: op}, nil
}
}
func initLexer() (*lex.Lexer, error) {
lexer := lex.NewLexer()
lexer.Add([]byte(`\(`), literalToken(openBracket, false))
lexer.Add([]byte(`\)`), literalToken(closeBracket, true))
lexer.Add([]byte(`\.\[`), literalToken(traverseArrayCollect, false))
lexer.Add([]byte(`\.\.`), opTokenWithPrefs(recursiveDescentOpType, nil, recursiveDescentPreferences{RecurseArray: true,
TraversePreferences: traversePreferences{DontFollowAlias: true, IncludeMapKeys: false}}))
lexer.Add([]byte(`\.\.\.`), opTokenWithPrefs(recursiveDescentOpType, nil, recursiveDescentPreferences{RecurseArray: true,
TraversePreferences: traversePreferences{DontFollowAlias: true, IncludeMapKeys: true}}))
lexer.Add([]byte(`,`), opToken(unionOpType))
lexer.Add([]byte(`:\s*`), opToken(createMapOpType))
lexer.Add([]byte(`length`), opToken(lengthOpType))
lexer.Add([]byte(`sortKeys`), opToken(sortKeysOpType))
lexer.Add([]byte(`select`), opToken(selectOpType))
lexer.Add([]byte(`has`), opToken(hasOpType))
lexer.Add([]byte(`explode`), opToken(explodeOpType))
lexer.Add([]byte(`or`), opToken(orOpType))
lexer.Add([]byte(`and`), opToken(andOpType))
lexer.Add([]byte(`not`), opToken(notOpType))
lexer.Add([]byte(`\/\/`), opToken(alternativeOpType))
lexer.Add([]byte(`documentIndex`), opToken(getDocumentIndexOpType))
lexer.Add([]byte(`di`), opToken(getDocumentIndexOpType))
lexer.Add([]byte(`splitDoc`), opToken(splitDocumentOpType))
lexer.Add([]byte(`join`), opToken(joinStringOpType))
lexer.Add([]byte(`split`), opToken(splitStringOpType))
lexer.Add([]byte(`keys`), opToken(keysOpType))
lexer.Add([]byte(`style`), opAssignableToken(getStyleOpType, assignStyleOpType))
lexer.Add([]byte(`tag`), opAssignableToken(getTagOpType, assignTagOpType))
lexer.Add([]byte(`anchor`), opAssignableToken(getAnchorOpType, assignAnchorOpType))
lexer.Add([]byte(`alias`), opAssignableToken(getAliasOptype, assignAliasOpType))
lexer.Add([]byte(`filename`), opToken(getFilenameOpType))
lexer.Add([]byte(`fileIndex`), opToken(getFileIndexOpType))
lexer.Add([]byte(`fi`), opToken(getFileIndexOpType))
lexer.Add([]byte(`path`), opToken(getPathOpType))
lexer.Add([]byte(`lineComment`), opTokenWithPrefs(getCommentOpType, assignCommentOpType, commentOpPreferences{LineComment: true}))
lexer.Add([]byte(`headComment`), opTokenWithPrefs(getCommentOpType, assignCommentOpType, commentOpPreferences{HeadComment: true}))
lexer.Add([]byte(`footComment`), opTokenWithPrefs(getCommentOpType, assignCommentOpType, commentOpPreferences{FootComment: true}))
lexer.Add([]byte(`comments\s*=`), assignAllCommentsOp(false))
lexer.Add([]byte(`comments\s*\|=`), assignAllCommentsOp(true))
lexer.Add([]byte(`collect`), opToken(collectOpType))
lexer.Add([]byte(`\s*==\s*`), opToken(equalsOpType))
lexer.Add([]byte(`\s*=\s*`), assignOpToken(false))
lexer.Add([]byte(`del`), opToken(deleteChildOpType))
lexer.Add([]byte(`\s*\|=\s*`), assignOpToken(true))
lexer.Add([]byte("( |\t|\n|\r)+"), skip)
lexer.Add([]byte(`\."[^ "]+"`), pathToken(true))
lexer.Add([]byte(`\.[^ \}\{\:\[\],\|\.\[\(\)=]+`), pathToken(false))
lexer.Add([]byte(`\.`), selfToken())
lexer.Add([]byte(`\|`), opToken(pipeOpType))
lexer.Add([]byte(`-?\d+(\.\d+)`), floatValue())
lexer.Add([]byte(`-?[1-9](\.\d+)?[Ee][-+]?\d+`), floatValue())
lexer.Add([]byte(`-?\d+`), numberValue())
lexer.Add([]byte(`[Tt][Rr][Uu][Ee]`), booleanValue(true))
lexer.Add([]byte(`[Ff][Aa][Ll][Ss][Ee]`), booleanValue(false))
lexer.Add([]byte(`[Nn][Uu][Ll][Ll]`), nullValue())
lexer.Add([]byte(`~`), nullValue())
lexer.Add([]byte(`"[^"]*"`), stringValue(true))
lexer.Add([]byte(`strenv\([^\)]+\)`), envOp(true))
lexer.Add([]byte(`env\([^\)]+\)`), envOp(false))
lexer.Add([]byte(`\[`), literalToken(openCollect, false))
lexer.Add([]byte(`\]`), literalToken(closeCollect, true))
lexer.Add([]byte(`\{`), literalToken(openCollectObject, false))
lexer.Add([]byte(`\}`), literalToken(closeCollectObject, true))
lexer.Add([]byte(`\*[\+|\?]*`), multiplyWithPrefs())
lexer.Add([]byte(`\+`), opToken(addOpType))
lexer.Add([]byte(`\+=`), opToken(addAssignOpType))
err := lexer.Compile()
if err != nil {
return nil, err
}
return lexer, nil
}
type expressionTokeniser interface {
Tokenise(expression string) ([]*token, error)
}
type expressionTokeniserImpl struct {
lexer *lex.Lexer
}
func newExpressionTokeniser() expressionTokeniser {
var lexer, err = initLexer()
if err != nil {
panic(err)
}
return &expressionTokeniserImpl{lexer}
}
func (p *expressionTokeniserImpl) Tokenise(expression string) ([]*token, error) {
scanner, err := p.lexer.Scanner([]byte(expression))
if err != nil {
return nil, fmt.Errorf("Parsing expression: %v", err)
}
var tokens []*token
for tok, err, eof := scanner.Next(); !eof; tok, err, eof = scanner.Next() {
if tok != nil {
currentToken := tok.(*token)
log.Debugf("Tokenising %v", currentToken.toString())
tokens = append(tokens, currentToken)
}
if err != nil {
return nil, fmt.Errorf("Parsing expression: %v", err)
}
}
var postProcessedTokens = make([]*token, 0)
skipNextToken := false
for index := range tokens {
if skipNextToken {
skipNextToken = false
} else {
postProcessedTokens, skipNextToken = p.handleToken(tokens, index, postProcessedTokens)
}
}
return postProcessedTokens, nil
}
func (p *expressionTokeniserImpl) handleToken(tokens []*token, index int, postProcessedTokens []*token) (tokensAccum []*token, skipNextToken bool) {
skipNextToken = false
currentToken := tokens[index]
if currentToken.TokenType == traverseArrayCollect {
//need to put a traverse array then a collect currentToken
// do this by adding traverse then converting currentToken to collect
op := &Operation{OperationType: traverseArrayOpType, StringValue: "TRAVERSE_ARRAY"}
postProcessedTokens = append(postProcessedTokens, &token{TokenType: operationToken, Operation: op})
currentToken = &token{TokenType: openCollect}
}
if index != len(tokens)-1 && currentToken.AssignOperation != nil &&
tokens[index+1].TokenType == operationToken &&
tokens[index+1].Operation.OperationType == assignOpType {
currentToken.Operation = currentToken.AssignOperation
currentToken.Operation.UpdateAssign = tokens[index+1].Operation.UpdateAssign
skipNextToken = true
}
postProcessedTokens = append(postProcessedTokens, currentToken)
if index != len(tokens)-1 && currentToken.CheckForPostTraverse &&
tokens[index+1].TokenType == operationToken &&
tokens[index+1].Operation.OperationType == traversePathOpType {
op := &Operation{OperationType: shortPipeOpType, Value: "PIPE"}
postProcessedTokens = append(postProcessedTokens, &token{TokenType: operationToken, Operation: op})
}
if index != len(tokens)-1 && currentToken.CheckForPostTraverse &&
tokens[index+1].TokenType == openCollect {
op := &Operation{OperationType: shortPipeOpType, Value: "PIPE"}
postProcessedTokens = append(postProcessedTokens, &token{TokenType: operationToken, Operation: op})
op = &Operation{OperationType: traverseArrayOpType}
postProcessedTokens = append(postProcessedTokens, &token{TokenType: operationToken, Operation: op})
}
if index != len(tokens)-1 && currentToken.CheckForPostTraverse &&
tokens[index+1].TokenType == traverseArrayCollect {
op := &Operation{OperationType: shortPipeOpType, Value: "PIPE"}
postProcessedTokens = append(postProcessedTokens, &token{TokenType: operationToken, Operation: op})
}
return postProcessedTokens, skipNextToken
}

View File

@@ -1,5 +1,3 @@
// Use the top level Evaluator or StreamEvaluator to evaluate expressions and return matches.
//
package yqlib
import (
@@ -13,89 +11,77 @@ import (
var log = logging.MustGetLogger("yq-lib")
type operationType struct {
type OperationType struct {
Type string
NumArgs uint // number of arguments to the op
Precedence uint
Handler operatorHandler
Handler OperatorHandler
}
// operators TODO:
// - cookbook doc for common things
// - mergeEmpty (sets only if the document is empty, do I do that now?)
var orOpType = &operationType{Type: "OR", NumArgs: 2, Precedence: 20, Handler: orOperator}
var andOpType = &operationType{Type: "AND", NumArgs: 2, Precedence: 20, Handler: andOperator}
var Or = &OperationType{Type: "OR", NumArgs: 2, Precedence: 20, Handler: OrOperator}
var And = &OperationType{Type: "AND", NumArgs: 2, Precedence: 20, Handler: AndOperator}
var unionOpType = &operationType{Type: "UNION", NumArgs: 2, Precedence: 10, Handler: unionOperator}
var Union = &OperationType{Type: "UNION", NumArgs: 2, Precedence: 10, Handler: UnionOperator}
var pipeOpType = &operationType{Type: "PIPE", NumArgs: 2, Precedence: 30, Handler: pipeOperator}
var Pipe = &OperationType{Type: "PIPE", NumArgs: 2, Precedence: 30, Handler: PipeOperator}
var assignOpType = &operationType{Type: "ASSIGN", NumArgs: 2, Precedence: 40, Handler: assignUpdateOperator}
var addAssignOpType = &operationType{Type: "ADD_ASSIGN", NumArgs: 2, Precedence: 40, Handler: addAssignOperator}
var Assign = &OperationType{Type: "ASSIGN", NumArgs: 2, Precedence: 40, Handler: AssignUpdateOperator}
var AddAssign = &OperationType{Type: "ADD_ASSIGN", NumArgs: 2, Precedence: 40, Handler: AddAssignOperator}
var assignAttributesOpType = &operationType{Type: "ASSIGN_ATTRIBUTES", NumArgs: 2, Precedence: 40, Handler: assignAttributesOperator}
var assignStyleOpType = &operationType{Type: "ASSIGN_STYLE", NumArgs: 2, Precedence: 40, Handler: assignStyleOperator}
var assignTagOpType = &operationType{Type: "ASSIGN_TAG", NumArgs: 2, Precedence: 40, Handler: assignTagOperator}
var assignCommentOpType = &operationType{Type: "ASSIGN_COMMENT", NumArgs: 2, Precedence: 40, Handler: assignCommentsOperator}
var assignAnchorOpType = &operationType{Type: "ASSIGN_ANCHOR", NumArgs: 2, Precedence: 40, Handler: assignAnchorOperator}
var assignAliasOpType = &operationType{Type: "ASSIGN_ALIAS", NumArgs: 2, Precedence: 40, Handler: assignAliasOperator}
var AssignAttributes = &OperationType{Type: "ASSIGN_ATTRIBUTES", NumArgs: 2, Precedence: 40, Handler: AssignAttributesOperator}
var AssignStyle = &OperationType{Type: "ASSIGN_STYLE", NumArgs: 2, Precedence: 40, Handler: AssignStyleOperator}
var AssignTag = &OperationType{Type: "ASSIGN_TAG", NumArgs: 2, Precedence: 40, Handler: AssignTagOperator}
var AssignComment = &OperationType{Type: "ASSIGN_COMMENT", NumArgs: 2, Precedence: 40, Handler: AssignCommentsOperator}
var multiplyOpType = &operationType{Type: "MULTIPLY", NumArgs: 2, Precedence: 42, Handler: multiplyOperator}
var addOpType = &operationType{Type: "ADD", NumArgs: 2, Precedence: 42, Handler: addOperator}
var alternativeOpType = &operationType{Type: "ALTERNATIVE", NumArgs: 2, Precedence: 42, Handler: alternativeOperator}
var Multiply = &OperationType{Type: "MULTIPLY", NumArgs: 2, Precedence: 45, Handler: MultiplyOperator}
var Add = &OperationType{Type: "ADD", NumArgs: 2, Precedence: 45, Handler: AddOperator}
var equalsOpType = &operationType{Type: "EQUALS", NumArgs: 2, Precedence: 40, Handler: equalsOperator}
var createMapOpType = &operationType{Type: "CREATE_MAP", NumArgs: 2, Precedence: 40, Handler: createMapOperator}
var Equals = &OperationType{Type: "EQUALS", NumArgs: 2, Precedence: 40, Handler: EqualsOperator}
var CreateMap = &OperationType{Type: "CREATE_MAP", NumArgs: 2, Precedence: 40, Handler: CreateMapOperator}
var shortPipeOpType = &operationType{Type: "SHORT_PIPE", NumArgs: 2, Precedence: 45, Handler: pipeOperator}
var ShortPipe = &OperationType{Type: "SHORT_PIPE", NumArgs: 2, Precedence: 45, Handler: PipeOperator}
var lengthOpType = &operationType{Type: "LENGTH", NumArgs: 0, Precedence: 50, Handler: lengthOperator}
var collectOpType = &operationType{Type: "COLLECT", NumArgs: 0, Precedence: 50, Handler: collectOperator}
var splitDocumentOpType = &operationType{Type: "SPLIT_DOC", NumArgs: 0, Precedence: 50, Handler: splitDocumentOperator}
var getStyleOpType = &operationType{Type: "GET_STYLE", NumArgs: 0, Precedence: 50, Handler: getStyleOperator}
var getTagOpType = &operationType{Type: "GET_TAG", NumArgs: 0, Precedence: 50, Handler: getTagOperator}
var getCommentOpType = &operationType{Type: "GET_COMMENT", NumArgs: 0, Precedence: 50, Handler: getCommentsOperator}
var getAnchorOpType = &operationType{Type: "GET_ANCHOR", NumArgs: 0, Precedence: 50, Handler: getAnchorOperator}
var getAliasOptype = &operationType{Type: "GET_ALIAS", NumArgs: 0, Precedence: 50, Handler: getAliasOperator}
var getDocumentIndexOpType = &operationType{Type: "GET_DOCUMENT_INDEX", NumArgs: 0, Precedence: 50, Handler: getDocumentIndexOperator}
var getFilenameOpType = &operationType{Type: "GET_FILENAME", NumArgs: 0, Precedence: 50, Handler: getFilenameOperator}
var getFileIndexOpType = &operationType{Type: "GET_FILE_INDEX", NumArgs: 0, Precedence: 50, Handler: getFileIndexOperator}
var getPathOpType = &operationType{Type: "GET_PATH", NumArgs: 0, Precedence: 50, Handler: getPathOperator}
var Length = &OperationType{Type: "LENGTH", NumArgs: 0, Precedence: 50, Handler: LengthOperator}
var Collect = &OperationType{Type: "COLLECT", NumArgs: 0, Precedence: 50, Handler: CollectOperator}
var GetStyle = &OperationType{Type: "GET_STYLE", NumArgs: 0, Precedence: 50, Handler: GetStyleOperator}
var GetTag = &OperationType{Type: "GET_TAG", NumArgs: 0, Precedence: 50, Handler: GetTagOperator}
var GetComment = &OperationType{Type: "GET_COMMENT", NumArgs: 0, Precedence: 50, Handler: GetCommentsOperator}
var GetDocumentIndex = &OperationType{Type: "GET_DOCUMENT_INDEX", NumArgs: 0, Precedence: 50, Handler: GetDocumentIndexOperator}
var GetFilename = &OperationType{Type: "GET_FILENAME", NumArgs: 0, Precedence: 50, Handler: GetFilenameOperator}
var GetFileIndex = &OperationType{Type: "GET_FILE_INDEX", NumArgs: 0, Precedence: 50, Handler: GetFileIndexOperator}
var GetPath = &OperationType{Type: "GET_PATH", NumArgs: 0, Precedence: 50, Handler: GetPathOperator}
var explodeOpType = &operationType{Type: "EXPLODE", NumArgs: 1, Precedence: 50, Handler: explodeOperator}
var sortKeysOpType = &operationType{Type: "SORT_KEYS", NumArgs: 1, Precedence: 50, Handler: sortKeysOperator}
var joinStringOpType = &operationType{Type: "JOIN", NumArgs: 1, Precedence: 50, Handler: joinStringOperator}
var splitStringOpType = &operationType{Type: "SPLIT", NumArgs: 1, Precedence: 50, Handler: splitStringOperator}
var Explode = &OperationType{Type: "EXPLODE", NumArgs: 1, Precedence: 50, Handler: ExplodeOperator}
var SortKeys = &OperationType{Type: "SORT_KEYS", NumArgs: 1, Precedence: 50, Handler: SortKeysOperator}
var keysOpType = &operationType{Type: "KEYS", NumArgs: 0, Precedence: 50, Handler: keysOperator}
var CollectObject = &OperationType{Type: "COLLECT_OBJECT", NumArgs: 0, Precedence: 50, Handler: CollectObjectOperator}
var TraversePath = &OperationType{Type: "TRAVERSE_PATH", NumArgs: 0, Precedence: 50, Handler: TraversePathOperator}
var collectObjectOpType = &operationType{Type: "COLLECT_OBJECT", NumArgs: 0, Precedence: 50, Handler: collectObjectOperator}
var traversePathOpType = &operationType{Type: "TRAVERSE_PATH", NumArgs: 0, Precedence: 50, Handler: traversePathOperator}
var traverseArrayOpType = &operationType{Type: "TRAVERSE_ARRAY", NumArgs: 1, Precedence: 50, Handler: traverseArrayOperator}
var DocumentFilter = &OperationType{Type: "DOCUMENT_FILTER", NumArgs: 0, Precedence: 50, Handler: TraversePathOperator}
var SelfReference = &OperationType{Type: "SELF", NumArgs: 0, Precedence: 50, Handler: SelfOperator}
var ValueOp = &OperationType{Type: "VALUE", NumArgs: 0, Precedence: 50, Handler: ValueOperator}
var Not = &OperationType{Type: "NOT", NumArgs: 0, Precedence: 50, Handler: NotOperator}
var Empty = &OperationType{Type: "EMPTY", NumArgs: 50, Handler: EmptyOperator}
var selfReferenceOpType = &operationType{Type: "SELF", NumArgs: 0, Precedence: 50, Handler: selfOperator}
var valueOpType = &operationType{Type: "VALUE", NumArgs: 0, Precedence: 50, Handler: valueOperator}
var envOpType = &operationType{Type: "ENV", NumArgs: 0, Precedence: 50, Handler: envOperator}
var notOpType = &operationType{Type: "NOT", NumArgs: 0, Precedence: 50, Handler: notOperator}
var emptyOpType = &operationType{Type: "EMPTY", NumArgs: 50, Handler: emptyOperator}
var RecursiveDescent = &OperationType{Type: "RECURSIVE_DESCENT", NumArgs: 0, Precedence: 50, Handler: RecursiveDescentOperator}
var recursiveDescentOpType = &operationType{Type: "RECURSIVE_DESCENT", NumArgs: 0, Precedence: 50, Handler: recursiveDescentOperator}
var selectOpType = &operationType{Type: "SELECT", NumArgs: 1, Precedence: 50, Handler: selectOperator}
var hasOpType = &operationType{Type: "HAS", NumArgs: 1, Precedence: 50, Handler: hasOperator}
var deleteChildOpType = &operationType{Type: "DELETE", NumArgs: 1, Precedence: 40, Handler: deleteChildOperator}
var deleteImmediateChildOpType = &operationType{Type: "DELETE_IMMEDIATE_CHILD", NumArgs: 1, Precedence: 40, Handler: deleteImmediateChildOperator}
var Select = &OperationType{Type: "SELECT", NumArgs: 1, Precedence: 50, Handler: SelectOperator}
var Has = &OperationType{Type: "HAS", NumArgs: 1, Precedence: 50, Handler: HasOperator}
var DeleteChild = &OperationType{Type: "DELETE", NumArgs: 1, Precedence: 40, Handler: DeleteChildOperator}
type Operation struct {
OperationType *operationType
OperationType *OperationType
Value interface{}
StringValue string
CandidateNode *CandidateNode // used for Value Path elements
Preferences interface{}
UpdateAssign bool // used for assign ops, when true it means we evaluate the rhs given the lhs
}
func createValueOperation(value interface{}, stringValue string) *Operation {
func CreateValueOperation(value interface{}, stringValue string) *Operation {
var node yaml.Node = yaml.Node{Kind: yaml.ScalarNode}
node.Value = stringValue
@@ -113,7 +99,7 @@ func createValueOperation(value interface{}, stringValue string) *Operation {
}
return &Operation{
OperationType: valueOpType,
OperationType: ValueOp,
Value: value,
StringValue: stringValue,
CandidateNode: &CandidateNode{Node: &node},
@@ -122,11 +108,13 @@ func createValueOperation(value interface{}, stringValue string) *Operation {
// debugging purposes only
func (p *Operation) toString() string {
if p.OperationType == traversePathOpType {
if p.OperationType == TraversePath {
return fmt.Sprintf("%v", p.Value)
} else if p.OperationType == selfReferenceOpType {
} else if p.OperationType == DocumentFilter {
return fmt.Sprintf("d%v", p.Value)
} else if p.OperationType == SelfReference {
return "SELF"
} else if p.OperationType == valueOpType {
} else if p.OperationType == ValueOp {
return fmt.Sprintf("%v (%T)", p.Value, p.Value)
} else {
return fmt.Sprintf("%v", p.OperationType.Type)

View File

@@ -1,6 +1,6 @@
package yqlib
func matchKey(name string, pattern string) (matched bool) {
func Match(name string, pattern string) (matched bool) {
if pattern == "" {
return name == pattern
}

View File

@@ -3,26 +3,32 @@ package yqlib
import (
"fmt"
"strconv"
"container/list"
yaml "gopkg.in/yaml.v3"
)
func createAddOp(lhs *ExpressionNode, rhs *ExpressionNode) *ExpressionNode {
return &ExpressionNode{Operation: &Operation{OperationType: addOpType},
Lhs: lhs,
func createSelfAddOp(rhs *PathTreeNode) *PathTreeNode {
return &PathTreeNode{Operation: &Operation{OperationType: Add},
Lhs: &PathTreeNode{Operation: &Operation{OperationType: SelfReference}},
Rhs: rhs}
}
func addAssignOperator(d *dataTreeNavigator, context Context, expressionNode *ExpressionNode) (Context, error) {
assignmentOp := &Operation{OperationType: assignOpType}
assignmentOp.UpdateAssign = false
func AddAssignOperator(d *dataTreeNavigator, matchingNodes *list.List, pathNode *PathTreeNode) (*list.List, error) {
assignmentOp := &Operation{OperationType: Assign}
assignmentOp.Preferences = &AssignOpPreferences{true}
assignmentOpNode := &ExpressionNode{Operation: assignmentOp, Lhs: expressionNode.Lhs, Rhs: createAddOp(expressionNode.Lhs, expressionNode.Rhs)}
return d.GetMatchingNodes(context, assignmentOpNode)
assignmentOpNode := &PathTreeNode{Operation: assignmentOp, Lhs: pathNode.Lhs, Rhs: createSelfAddOp(pathNode.Rhs)}
return d.GetMatchingNodes(matchingNodes, assignmentOpNode)
}
func toNodes(candidate *CandidateNode) []*yaml.Node {
func toNodes(candidates *list.List) []*yaml.Node {
if candidates.Len() == 0 {
return []*yaml.Node{}
}
candidate := candidates.Front().Value.(*CandidateNode)
if candidate.Node.Tag == "!!null" {
return []*yaml.Node{}
}
@@ -36,76 +42,42 @@ func toNodes(candidate *CandidateNode) []*yaml.Node {
}
func addOperator(d *dataTreeNavigator, context Context, expressionNode *ExpressionNode) (Context, error) {
func AddOperator(d *dataTreeNavigator, matchingNodes *list.List, pathNode *PathTreeNode) (*list.List, error) {
log.Debugf("Add operator")
var results = list.New()
lhs, err := d.GetMatchingNodes(matchingNodes, pathNode.Lhs)
if err != nil {
return nil, err
}
rhs, err := d.GetMatchingNodes(matchingNodes, pathNode.Rhs)
return crossFunction(d, context, expressionNode, add)
}
func add(d *dataTreeNavigator, context Context, lhs *CandidateNode, rhs *CandidateNode) (*CandidateNode, error) {
lhs.Node = unwrapDoc(lhs.Node)
rhs.Node = unwrapDoc(rhs.Node)
lhsNode := lhs.Node
if lhsNode.Tag == "!!null" {
return lhs.CreateChild(nil, rhs.Node), nil
if err != nil {
return nil, err
}
target := lhs.CreateChild(nil, &yaml.Node{})
for el := lhs.Front(); el != nil; el = el.Next() {
lhsCandidate := el.Value.(*CandidateNode)
lhsNode := UnwrapDoc(lhsCandidate.Node)
switch lhsNode.Kind {
case yaml.MappingNode:
return nil, fmt.Errorf("Maps not yet supported for addition")
case yaml.SequenceNode:
target.Node.Kind = yaml.SequenceNode
target.Node.Style = lhsNode.Style
target.Node.Tag = "!!seq"
target.Node.Content = append(lhsNode.Content, toNodes(rhs)...)
case yaml.ScalarNode:
if rhs.Node.Kind != yaml.ScalarNode {
return nil, fmt.Errorf("%v (%v) cannot be added to a %v", rhs.Node.Tag, rhs.Path, lhsNode.Tag)
target := &CandidateNode{
Path: lhsCandidate.Path,
Document: lhsCandidate.Document,
Filename: lhsCandidate.Filename,
Node: &yaml.Node{},
}
switch lhsNode.Kind {
case yaml.MappingNode:
return nil, fmt.Errorf("Maps not yet supported for addition")
case yaml.SequenceNode:
target.Node.Kind = yaml.SequenceNode
target.Node.Style = lhsNode.Style
target.Node.Tag = "!!seq"
target.Node.Content = append(lhsNode.Content, toNodes(rhs)...)
results.PushBack(target)
case yaml.ScalarNode:
return nil, fmt.Errorf("Scalars not yet supported for addition")
}
target.Node.Kind = yaml.ScalarNode
target.Node.Style = lhsNode.Style
return addScalars(target, lhsNode, rhs.Node)
}
return target, nil
}
func addScalars(target *CandidateNode, lhs *yaml.Node, rhs *yaml.Node) (*CandidateNode, error) {
if lhs.Tag == "!!str" {
target.Node.Tag = "!!str"
target.Node.Value = lhs.Value + rhs.Value
} else if lhs.Tag == "!!int" && rhs.Tag == "!!int" {
lhsNum, err := strconv.Atoi(lhs.Value)
if err != nil {
return nil, err
}
rhsNum, err := strconv.Atoi(rhs.Value)
if err != nil {
return nil, err
}
sum := lhsNum + rhsNum
target.Node.Tag = "!!int"
target.Node.Value = fmt.Sprintf("%v", sum)
} else if (lhs.Tag == "!!int" || lhs.Tag == "!!float") && (rhs.Tag == "!!int" || rhs.Tag == "!!float") {
lhsNum, err := strconv.ParseFloat(lhs.Value, 64)
if err != nil {
return nil, err
}
rhsNum, err := strconv.ParseFloat(rhs.Value, 64)
if err != nil {
return nil, err
}
sum := lhsNum + rhsNum
target.Node.Tag = "!!float"
target.Node.Value = fmt.Sprintf("%v", sum)
} else {
return nil, fmt.Errorf("%v cannot be added to %v", lhs.Tag, rhs.Tag)
}
return target, nil
return results, nil
}

View File

@@ -5,15 +5,6 @@ import (
)
var addOperatorScenarios = []expressionScenario{
{
skipDoc: true,
document: `[{a: foo, b: bar}, {a: 1, b: 2}]`,
expression: ".[] | .a + .b",
expected: []string{
"D0, P[0 a], (!!str)::foobar\n",
"D0, P[1 a], (!!int)::3\n",
},
},
{
description: "Concatenate and assign arrays",
document: `{a: {val: thing, b: [cat,dog]}}`,
@@ -30,14 +21,6 @@ var addOperatorScenarios = []expressionScenario{
"D0, P[a], (!!seq)::[1, 2, 3, 4]\n",
},
},
{
skipDoc: true,
expression: `[1] + ([2], [3])`,
expected: []string{
"D0, P[], (!!seq)::- 1\n- 2\n",
"D0, P[], (!!seq)::- 1\n- 3\n",
},
},
{
description: "Concatenate null to array",
document: `{a: [1,2]}`,
@@ -47,11 +30,11 @@ var addOperatorScenarios = []expressionScenario{
},
},
{
description: "Add new object to array",
document: `a: [{dog: woof}]`,
expression: `.a + {"cat": "meow"}`,
description: "Add object to array",
document: `{a: [1,2], c: {cat: meow}}`,
expression: `.a + .c`,
expected: []string{
"D0, P[a], (!!seq)::[{dog: woof}, {cat: meow}]\n",
"D0, P[a], (!!seq)::[1, 2, {cat: meow}]\n",
},
},
{
@@ -70,56 +53,6 @@ var addOperatorScenarios = []expressionScenario{
"D0, P[], (doc)::{a: [1, 2, 3, 4], b: [3, 4]}\n",
},
},
{
description: "String concatenation",
document: `{a: cat, b: meow}`,
expression: `.a = .a + .b`,
expected: []string{
"D0, P[], (doc)::{a: catmeow, b: meow}\n",
},
},
{
description: "Relative string concatenation",
document: `{a: cat, b: meow}`,
expression: `.a += .b`,
expected: []string{
"D0, P[], (doc)::{a: catmeow, b: meow}\n",
},
},
{
description: "Number addition - float",
subdescription: "If the lhs or rhs are floats then the expression will be calculated with floats.",
document: `{a: 3, b: 4.9}`,
expression: `.a = .a + .b`,
expected: []string{
"D0, P[], (doc)::{a: 7.9, b: 4.9}\n",
},
},
{
description: "Number addition - int",
subdescription: "If both the lhs and rhs are ints then the expression will be calculated with ints.",
document: `{a: 3, b: 4}`,
expression: `.a = .a + .b`,
expected: []string{
"D0, P[], (doc)::{a: 7, b: 4}\n",
},
},
{
description: "Increment number",
document: `{a: 3}`,
expression: `.a += 1`,
expected: []string{
"D0, P[], (doc)::{a: 4}\n",
},
},
{
description: "Add to null",
subdescription: "Adding to null simply returns the rhs",
expression: `null + "cat"`,
expected: []string{
"D0, P[], (!!str)::cat\n",
},
},
}
func TestAddOperatorScenarios(t *testing.T) {

View File

@@ -1,24 +0,0 @@
package yqlib
// corssFunction no matches
// can boolean use crossfunction
func alternativeOperator(d *dataTreeNavigator, context Context, expressionNode *ExpressionNode) (Context, error) {
log.Debugf("-- alternative")
return crossFunction(d, context, expressionNode, alternativeFunc)
}
func alternativeFunc(d *dataTreeNavigator, context Context, lhs *CandidateNode, rhs *CandidateNode) (*CandidateNode, error) {
lhs.Node = unwrapDoc(lhs.Node)
rhs.Node = unwrapDoc(rhs.Node)
log.Debugf("Alternative LHS: %v", lhs.Node.Tag)
log.Debugf("- RHS: %v", rhs.Node.Tag)
isTrue, err := isTruthy(lhs)
if err != nil {
return nil, err
} else if isTrue {
return lhs, nil
}
return rhs, nil
}

View File

@@ -1,62 +0,0 @@
package yqlib
import (
"testing"
)
var alternativeOperatorScenarios = []expressionScenario{
{
description: "LHS is defined",
expression: `.a // "hello"`,
document: `{a: bridge}`,
expected: []string{
"D0, P[a], (!!str)::bridge\n",
},
},
{
description: "LHS is not defined",
expression: `.a // "hello"`,
document: `{}`,
expected: []string{
"D0, P[], (!!str)::hello\n",
},
},
{
description: "LHS is null",
expression: `.a // "hello"`,
document: `{a: ~}`,
expected: []string{
"D0, P[], (!!str)::hello\n",
},
},
{
description: "LHS is false",
expression: `.a // "hello"`,
document: `{a: false}`,
expected: []string{
"D0, P[], (!!str)::hello\n",
},
},
{
description: "RHS is an expression",
expression: `.a // .b`,
document: `{a: false, b: cat}`,
expected: []string{
"D0, P[b], (!!str)::cat\n",
},
},
{
skipDoc: true,
expression: `false // true`,
expected: []string{
"D0, P[], (!!bool)::true\n",
},
},
}
func TestAlternativeOperatorScenarios(t *testing.T) {
for _, tt := range alternativeOperatorScenarios {
testScenario(t, &tt)
}
documentScenarios(t, "Alternative (Default value)", alternativeOperatorScenarios)
}

View File

@@ -1,261 +0,0 @@
package yqlib
import (
"container/list"
yaml "gopkg.in/yaml.v3"
)
func assignAliasOperator(d *dataTreeNavigator, context Context, expressionNode *ExpressionNode) (Context, error) {
log.Debugf("AssignAlias operator!")
aliasName := ""
if !expressionNode.Operation.UpdateAssign {
rhs, err := d.GetMatchingNodes(context, expressionNode.Rhs)
if err != nil {
return Context{}, err
}
if rhs.MatchingNodes.Front() != nil {
aliasName = rhs.MatchingNodes.Front().Value.(*CandidateNode).Node.Value
}
}
lhs, err := d.GetMatchingNodes(context, expressionNode.Lhs)
if err != nil {
return Context{}, err
}
for el := lhs.MatchingNodes.Front(); el != nil; el = el.Next() {
candidate := el.Value.(*CandidateNode)
log.Debugf("Setting aliasName : %v", candidate.GetKey())
if expressionNode.Operation.UpdateAssign {
rhs, err := d.GetMatchingNodes(context.SingleChildContext(candidate), expressionNode.Rhs)
if err != nil {
return Context{}, err
}
if rhs.MatchingNodes.Front() != nil {
aliasName = rhs.MatchingNodes.Front().Value.(*CandidateNode).Node.Value
}
}
candidate.Node.Kind = yaml.AliasNode
candidate.Node.Value = aliasName
}
return context, nil
}
func getAliasOperator(d *dataTreeNavigator, context Context, expressionNode *ExpressionNode) (Context, error) {
log.Debugf("GetAlias operator!")
var results = list.New()
for el := context.MatchingNodes.Front(); el != nil; el = el.Next() {
candidate := el.Value.(*CandidateNode)
node := &yaml.Node{Kind: yaml.ScalarNode, Value: candidate.Node.Value, Tag: "!!str"}
result := candidate.CreateChild(nil, node)
results.PushBack(result)
}
return context.ChildContext(results), nil
}
func assignAnchorOperator(d *dataTreeNavigator, context Context, expressionNode *ExpressionNode) (Context, error) {
log.Debugf("AssignAnchor operator!")
anchorName := ""
if !expressionNode.Operation.UpdateAssign {
rhs, err := d.GetMatchingNodes(context, expressionNode.Rhs)
if err != nil {
return Context{}, err
}
if rhs.MatchingNodes.Front() != nil {
anchorName = rhs.MatchingNodes.Front().Value.(*CandidateNode).Node.Value
}
}
lhs, err := d.GetMatchingNodes(context, expressionNode.Lhs)
if err != nil {
return Context{}, err
}
for el := lhs.MatchingNodes.Front(); el != nil; el = el.Next() {
candidate := el.Value.(*CandidateNode)
log.Debugf("Setting anchorName of : %v", candidate.GetKey())
if expressionNode.Operation.UpdateAssign {
rhs, err := d.GetMatchingNodes(context.SingleChildContext(candidate), expressionNode.Rhs)
if err != nil {
return Context{}, err
}
if rhs.MatchingNodes.Front() != nil {
anchorName = rhs.MatchingNodes.Front().Value.(*CandidateNode).Node.Value
}
}
candidate.Node.Anchor = anchorName
}
return context, nil
}
func getAnchorOperator(d *dataTreeNavigator, context Context, expressionNode *ExpressionNode) (Context, error) {
log.Debugf("GetAnchor operator!")
var results = list.New()
for el := context.MatchingNodes.Front(); el != nil; el = el.Next() {
candidate := el.Value.(*CandidateNode)
anchor := candidate.Node.Anchor
node := &yaml.Node{Kind: yaml.ScalarNode, Value: anchor, Tag: "!!str"}
result := candidate.CreateChild(nil, node)
results.PushBack(result)
}
return context.ChildContext(results), nil
}
func explodeOperator(d *dataTreeNavigator, context Context, expressionNode *ExpressionNode) (Context, error) {
log.Debugf("-- ExplodeOperation")
for el := context.MatchingNodes.Front(); el != nil; el = el.Next() {
candidate := el.Value.(*CandidateNode)
rhs, err := d.GetMatchingNodes(context.SingleChildContext(candidate), expressionNode.Rhs)
if err != nil {
return Context{}, err
}
for childEl := rhs.MatchingNodes.Front(); childEl != nil; childEl = childEl.Next() {
err = explodeNode(childEl.Value.(*CandidateNode).Node, context)
if err != nil {
return Context{}, err
}
}
}
return context, nil
}
func explodeNode(node *yaml.Node, context Context) 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, context)
if errorInContent != nil {
return errorInContent
}
}
return nil
case yaml.AliasNode:
log.Debugf("its an alias!")
if node.Alias != nil {
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:
var newContent = list.New()
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 != "<<" {
err := overrideEntry(node, keyNode, valueNode, index, context.ChildContext(newContent))
if err != nil {
return err
}
} else {
if valueNode.Kind == yaml.SequenceNode {
log.Debugf("an alias merge list!")
for index := 0; index < len(valueNode.Content); index = index + 1 {
aliasNode := valueNode.Content[index]
err := applyAlias(node, aliasNode.Alias, index, context.ChildContext(newContent))
if err != nil {
return err
}
}
} else {
log.Debugf("an alias merge!")
err := applyAlias(node, valueNode.Alias, index, context.ChildContext(newContent))
if err != nil {
return err
}
}
}
}
node.Content = make([]*yaml.Node, newContent.Len())
index := 0
for newEl := newContent.Front(); newEl != nil; newEl = newEl.Next() {
node.Content[index] = newEl.Value.(*yaml.Node)
index++
}
return nil
default:
return nil
}
}
func applyAlias(node *yaml.Node, alias *yaml.Node, aliasIndex int, newContent Context) error {
if alias == nil {
return nil
}
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]
err := overrideEntry(node, keyNode, valueNode, aliasIndex, newContent)
if err != nil {
return err
}
}
return nil
}
func overrideEntry(node *yaml.Node, key *yaml.Node, value *yaml.Node, startIndex int, newContent Context) error {
err := explodeNode(value, newContent)
if err != nil {
return err
}
for newEl := newContent.MatchingNodes.Front(); newEl != nil; newEl = newEl.Next() {
valueEl := newEl.Next() // move forward twice
keyNode := newEl.Value.(*yaml.Node)
log.Debugf("checking new content %v:%v", keyNode.Value, valueEl.Value.(*yaml.Node).Value)
if keyNode.Value == key.Value && keyNode.Alias == nil && key.Alias == nil {
log.Debugf("overridign new content")
valueEl.Value = value
return nil
}
newEl = valueEl // move forward twice
}
for index := startIndex + 2; index < len(node.Content); index = index + 2 {
keyNode := node.Content[index]
if keyNode.Value == key.Value && keyNode.Alias == nil {
log.Debugf("content will be overridden at index %v", index)
return nil
}
}
err = explodeNode(key, newContent)
if err != nil {
return err
}
log.Debugf("adding %v:%v", key.Value, value.Value)
newContent.MatchingNodes.PushBack(key)
newContent.MatchingNodes.PushBack(value)
return nil
}

View File

@@ -1,60 +1,70 @@
package yqlib
func assignUpdateOperator(d *dataTreeNavigator, context Context, expressionNode *ExpressionNode) (Context, error) {
lhs, err := d.GetMatchingNodes(context, expressionNode.Lhs)
import "container/list"
type AssignOpPreferences struct {
UpdateAssign bool
}
func AssignUpdateOperator(d *dataTreeNavigator, matchingNodes *list.List, pathNode *PathTreeNode) (*list.List, error) {
lhs, err := d.GetMatchingNodes(matchingNodes, pathNode.Lhs)
if err != nil {
return Context{}, err
return nil, err
}
var rhs Context
if !expressionNode.Operation.UpdateAssign {
rhs, err = d.GetMatchingNodes(context, expressionNode.Rhs)
preferences := pathNode.Operation.Preferences.(*AssignOpPreferences)
var rhs *list.List
if !preferences.UpdateAssign {
rhs, err = d.GetMatchingNodes(matchingNodes, pathNode.Rhs)
}
for el := lhs.MatchingNodes.Front(); el != nil; el = el.Next() {
for el := lhs.Front(); el != nil; el = el.Next() {
candidate := el.Value.(*CandidateNode)
if expressionNode.Operation.UpdateAssign {
rhs, err = d.GetMatchingNodes(context.SingleChildContext(candidate), expressionNode.Rhs)
if preferences.UpdateAssign {
rhs, err = d.GetMatchingNodes(nodeToMap(candidate), pathNode.Rhs)
}
if err != nil {
return Context{}, err
return nil, err
}
// grab the first value
first := rhs.MatchingNodes.Front()
first := rhs.Front()
if first != nil {
rhsCandidate := first.Value.(*CandidateNode)
rhsCandidate.Node = unwrapDoc(rhsCandidate.Node)
candidate.UpdateFrom(rhsCandidate)
candidate.UpdateFrom(first.Value.(*CandidateNode))
}
}
return context, nil
// // if there was nothing given, perhaps we are creating a new yaml doc
// if matchingNodes.Len() == 0 {
// log.Debug("started with nothing, returning LHS, %v", lhs.Len())
// return lhs, nil
// }
return matchingNodes, nil
}
// does not update content or values
func assignAttributesOperator(d *dataTreeNavigator, context Context, expressionNode *ExpressionNode) (Context, error) {
lhs, err := d.GetMatchingNodes(context, expressionNode.Lhs)
func AssignAttributesOperator(d *dataTreeNavigator, matchingNodes *list.List, pathNode *PathTreeNode) (*list.List, error) {
lhs, err := d.GetMatchingNodes(matchingNodes, pathNode.Lhs)
if err != nil {
return Context{}, err
return nil, err
}
for el := lhs.MatchingNodes.Front(); el != nil; el = el.Next() {
for el := lhs.Front(); el != nil; el = el.Next() {
candidate := el.Value.(*CandidateNode)
rhs, err := d.GetMatchingNodes(context.SingleChildContext(candidate), expressionNode.Rhs)
rhs, err := d.GetMatchingNodes(nodeToMap(candidate), pathNode.Rhs)
if err != nil {
return Context{}, err
return nil, err
}
// grab the first value
first := rhs.MatchingNodes.Front()
first := rhs.Front()
if first != nil {
candidate.UpdateAttributesFrom(first.Value.(*CandidateNode))
}
}
return context, nil
return matchingNodes, nil
}

View File

@@ -20,16 +20,6 @@ var assignOperatorScenarios = []expressionScenario{
"D0, P[], (doc)::{a: {g: foof}}\n",
},
},
{
description: "Update node from another file",
subdescription: "Note this will also work when the second file is a scalar (string/number)",
document: `{a: apples}`,
document2: "{b: bob}",
expression: `select(fileIndex==0).a = select(fileIndex==1) | select(fileIndex==0)`,
expected: []string{
"D0, P[], (doc)::{a: {b: bob}}\n",
},
},
{
description: "Update node to be the sibling value",
document: `{a: {b: child}, b: sibling}`,
@@ -90,15 +80,7 @@ var assignOperatorScenarios = []expressionScenario{
{
description: "Update selected results",
document: `{a: {b: apple, c: cactus}}`,
expression: `(.a[] | select(. == "apple")) = "frog"`,
expected: []string{
"D0, P[], (doc)::{a: {b: frog, c: cactus}}\n",
},
},
{
skipDoc: true,
document: `{a: {b: apple, c: cactus}}`,
expression: `(.a.[] | select(. == "apple")) = "frog"`,
expression: `(.a.[] | select(. == "apple")) = "frog"`,
expected: []string{
"D0, P[], (doc)::{a: {b: frog, c: cactus}}\n",
},

View File

@@ -7,7 +7,7 @@ import (
)
func isTruthy(c *CandidateNode) (bool, error) {
node := unwrapDoc(c.Node)
node := UnwrapDoc(c.Node)
value := true
if node.Tag == "!!null" {
@@ -25,54 +25,89 @@ func isTruthy(c *CandidateNode) (bool, error) {
type boolOp func(bool, bool) bool
func performBoolOp(op boolOp) func(d *dataTreeNavigator, context Context, lhs *CandidateNode, rhs *CandidateNode) (*CandidateNode, error) {
return func(d *dataTreeNavigator, context Context, lhs *CandidateNode, rhs *CandidateNode) (*CandidateNode, error) {
lhs.Node = unwrapDoc(lhs.Node)
rhs.Node = unwrapDoc(rhs.Node)
lhsTrue, errDecoding := isTruthy(lhs)
func performBoolOp(results *list.List, lhs *list.List, rhs *list.List, op boolOp) error {
for lhsChild := lhs.Front(); lhsChild != nil; lhsChild = lhsChild.Next() {
lhsCandidate := lhsChild.Value.(*CandidateNode)
lhsTrue, errDecoding := isTruthy(lhsCandidate)
if errDecoding != nil {
return nil, errDecoding
return errDecoding
}
rhsTrue, errDecoding := isTruthy(rhs)
if errDecoding != nil {
return nil, errDecoding
for rhsChild := rhs.Front(); rhsChild != nil; rhsChild = rhsChild.Next() {
rhsCandidate := rhsChild.Value.(*CandidateNode)
rhsTrue, errDecoding := isTruthy(rhsCandidate)
if errDecoding != nil {
return errDecoding
}
boolResult := createBooleanCandidate(lhsCandidate, op(lhsTrue, rhsTrue))
results.PushBack(boolResult)
}
return createBooleanCandidate(lhs, op(lhsTrue, rhsTrue)), nil
}
return nil
}
func orOperator(d *dataTreeNavigator, context Context, expressionNode *ExpressionNode) (Context, error) {
func booleanOp(d *dataTreeNavigator, matchingNodes *list.List, pathNode *PathTreeNode, op boolOp) (*list.List, error) {
var results = list.New()
if matchingNodes.Len() == 0 {
lhs, err := d.GetMatchingNodes(list.New(), pathNode.Lhs)
if err != nil {
return nil, err
}
rhs, err := d.GetMatchingNodes(list.New(), pathNode.Rhs)
if err != nil {
return nil, err
}
return results, performBoolOp(results, lhs, rhs, op)
}
for el := matchingNodes.Front(); el != nil; el = el.Next() {
candidate := el.Value.(*CandidateNode)
lhs, err := d.GetMatchingNodes(nodeToMap(candidate), pathNode.Lhs)
if err != nil {
return nil, err
}
rhs, err := d.GetMatchingNodes(nodeToMap(candidate), pathNode.Rhs)
if err != nil {
return nil, err
}
err = performBoolOp(results, lhs, rhs, op)
if err != nil {
return nil, err
}
}
return results, nil
}
func OrOperator(d *dataTreeNavigator, matchingNodes *list.List, pathNode *PathTreeNode) (*list.List, error) {
log.Debugf("-- orOp")
return crossFunction(d, context, expressionNode, performBoolOp(
func(b1 bool, b2 bool) bool {
return b1 || b2
}))
return booleanOp(d, matchingNodes, pathNode, func(b1 bool, b2 bool) bool {
return b1 || b2
})
}
func andOperator(d *dataTreeNavigator, context Context, expressionNode *ExpressionNode) (Context, error) {
func AndOperator(d *dataTreeNavigator, matchingNodes *list.List, pathNode *PathTreeNode) (*list.List, error) {
log.Debugf("-- AndOp")
return crossFunction(d, context, expressionNode, performBoolOp(
func(b1 bool, b2 bool) bool {
return b1 && b2
}))
return booleanOp(d, matchingNodes, pathNode, func(b1 bool, b2 bool) bool {
return b1 && b2
})
}
func notOperator(d *dataTreeNavigator, context Context, expressionNode *ExpressionNode) (Context, error) {
func NotOperator(d *dataTreeNavigator, matchMap *list.List, pathNode *PathTreeNode) (*list.List, error) {
log.Debugf("-- notOperation")
var results = list.New()
for el := context.MatchingNodes.Front(); el != nil; el = el.Next() {
for el := matchMap.Front(); el != nil; el = el.Next() {
candidate := el.Value.(*CandidateNode)
log.Debug("notOperation checking %v", candidate)
truthy, errDecoding := isTruthy(candidate)
if errDecoding != nil {
return Context{}, errDecoding
return nil, errDecoding
}
result := createBooleanCandidate(candidate, !truthy)
results.PushBack(result)
}
return context.ChildContext(results), nil
return results, nil
}

View File

@@ -6,35 +6,34 @@ import (
yaml "gopkg.in/yaml.v3"
)
func collectOperator(d *dataTreeNavigator, context Context, expressionNode *ExpressionNode) (Context, error) {
func CollectOperator(d *dataTreeNavigator, matchMap *list.List, pathNode *PathTreeNode) (*list.List, error) {
log.Debugf("-- collectOperation")
if context.MatchingNodes.Len() == 0 {
if matchMap.Len() == 0 {
node := &yaml.Node{Kind: yaml.SequenceNode, Tag: "!!seq", Value: "[]"}
candidate := &CandidateNode{Node: node}
return context.SingleChildContext(candidate), nil
return nodeToMap(candidate), nil
}
var results = list.New()
node := &yaml.Node{Kind: yaml.SequenceNode, Tag: "!!seq"}
var collectC *CandidateNode
if context.MatchingNodes.Front() != nil {
collectC = context.MatchingNodes.Front().Value.(*CandidateNode).CreateChild(nil, node)
if len(collectC.Path) > 0 {
collectC.Path = collectC.Path[:len(collectC.Path)-1]
}
} else {
collectC = &CandidateNode{Node: node}
}
for el := context.MatchingNodes.Front(); el != nil; el = el.Next() {
var document uint = 0
var path []interface{}
for el := matchMap.Front(); el != nil; el = el.Next() {
candidate := el.Value.(*CandidateNode)
log.Debugf("Collecting %v", NodeToString(candidate))
node.Content = append(node.Content, unwrapDoc(candidate.Node))
if path == nil && candidate.Path != nil && len(candidate.Path) > 1 {
path = candidate.Path[:len(candidate.Path)-1]
document = candidate.Document
}
node.Content = append(node.Content, candidate.Node)
}
collectC := &CandidateNode{Node: node, Document: document, Path: path}
results.PushBack(collectC)
return context.ChildContext(results), nil
return results, nil
}

View File

@@ -17,83 +17,90 @@ import (
...
*/
func collectObjectOperator(d *dataTreeNavigator, context Context, expressionNode *ExpressionNode) (Context, error) {
func CollectObjectOperator(d *dataTreeNavigator, matchMap *list.List, pathNode *PathTreeNode) (*list.List, error) {
log.Debugf("-- collectObjectOperation")
if context.MatchingNodes.Len() == 0 {
if matchMap.Len() == 0 {
node := &yaml.Node{Kind: yaml.MappingNode, Tag: "!!map", Value: "{}"}
candidate := &CandidateNode{Node: node}
return context.SingleChildContext(candidate), nil
return nodeToMap(candidate), nil
}
first := context.MatchingNodes.Front().Value.(*CandidateNode)
first := matchMap.Front().Value.(*CandidateNode)
var rotated []*list.List = make([]*list.List, len(first.Node.Content))
for i := 0; i < len(first.Node.Content); i++ {
rotated[i] = list.New()
}
for el := context.MatchingNodes.Front(); el != nil; el = el.Next() {
for el := matchMap.Front(); el != nil; el = el.Next() {
candidateNode := el.Value.(*CandidateNode)
for i := 0; i < len(first.Node.Content); i++ {
rotated[i].PushBack(candidateNode.CreateChild(i, candidateNode.Node.Content[i]))
rotated[i].PushBack(createChildCandidate(candidateNode, i))
}
}
newObject := list.New()
for i := 0; i < len(first.Node.Content); i++ {
additions, err := collect(d, context.ChildContext(list.New()), rotated[i])
additions, err := collect(d, list.New(), rotated[i])
if err != nil {
return Context{}, err
return nil, err
}
newObject.PushBackList(additions.MatchingNodes)
newObject.PushBackList(additions)
}
return context.ChildContext(newObject), nil
return newObject, nil
}
func collect(d *dataTreeNavigator, context Context, remainingMatches *list.List) (Context, error) {
func createChildCandidate(candidate *CandidateNode, index int) *CandidateNode {
return &CandidateNode{
Document: candidate.Document,
Path: append(candidate.Path, index),
Filename: candidate.Filename,
Node: candidate.Node.Content[index],
}
}
func collect(d *dataTreeNavigator, aggregate *list.List, remainingMatches *list.List) (*list.List, error) {
if remainingMatches.Len() == 0 {
return context, nil
return aggregate, nil
}
candidate := remainingMatches.Remove(remainingMatches.Front()).(*CandidateNode)
splatted, err := Splat(d, nodeToMap(candidate))
splatted, err := splat(d, context.SingleChildContext(candidate),
traversePreferences{DontFollowAlias: true, IncludeMapKeys: false})
for splatEl := splatted.MatchingNodes.Front(); splatEl != nil; splatEl = splatEl.Next() {
for splatEl := splatted.Front(); splatEl != nil; splatEl = splatEl.Next() {
splatEl.Value.(*CandidateNode).Path = nil
}
if err != nil {
return Context{}, err
return nil, err
}
if context.MatchingNodes.Len() == 0 {
if aggregate.Len() == 0 {
return collect(d, splatted, remainingMatches)
}
newAgg := list.New()
for el := context.MatchingNodes.Front(); el != nil; el = el.Next() {
for el := aggregate.Front(); el != nil; el = el.Next() {
aggCandidate := el.Value.(*CandidateNode)
for splatEl := splatted.MatchingNodes.Front(); splatEl != nil; splatEl = splatEl.Next() {
for splatEl := splatted.Front(); splatEl != nil; splatEl = splatEl.Next() {
splatCandidate := splatEl.Value.(*CandidateNode)
newCandidate, err := aggCandidate.Copy()
if err != nil {
return Context{}, err
return nil, err
}
newCandidate.Path = nil
newCandidate, err = multiply(multiplyPreferences{AppendArrays: false})(d, context, newCandidate, splatCandidate)
newCandidate, err = multiply(&MultiplyPreferences{AppendArrays: false})(d, newCandidate, splatCandidate)
if err != nil {
return Context{}, err
return nil, err
}
newAgg.PushBack(newCandidate)
}
}
return collect(d, context.ChildContext(newAgg), remainingMatches)
return collect(d, newAgg, remainingMatches)
}

View File

@@ -110,5 +110,5 @@ func TestCollectObjectOperatorScenarios(t *testing.T) {
for _, tt := range collectObjectOperatorScenarios {
testScenario(t, &tt)
}
documentScenarios(t, "Create, Collect into Object", collectObjectOperatorScenarios)
documentScenarios(t, "Collect into Object", collectObjectOperatorScenarios)
}

View File

@@ -13,15 +13,6 @@ var collectOperatorScenarios = []expressionScenario{
"D0, P[], (!!seq)::[]\n",
},
},
{
skipDoc: true,
document: "{a: apple}\n---\n{b: frog}",
expression: `[.]`,
expected: []string{
"D0, P[], (!!seq)::- {a: apple}\n- {b: frog}\n",
},
},
{
skipDoc: true,
document: ``,

View File

@@ -4,53 +4,38 @@ import (
"container/list"
"strings"
yaml "gopkg.in/yaml.v3"
"gopkg.in/yaml.v3"
)
type commentOpPreferences struct {
type CommentOpPreferences struct {
LineComment bool
HeadComment bool
FootComment bool
}
func assignCommentsOperator(d *dataTreeNavigator, context Context, expressionNode *ExpressionNode) (Context, error) {
func AssignCommentsOperator(d *dataTreeNavigator, matchingNodes *list.List, pathNode *PathTreeNode) (*list.List, error) {
log.Debugf("AssignComments operator!")
lhs, err := d.GetMatchingNodes(context, expressionNode.Lhs)
rhs, err := d.GetMatchingNodes(matchingNodes, pathNode.Rhs)
if err != nil {
return nil, err
}
comment := ""
if rhs.Front() != nil {
comment = rhs.Front().Value.(*CandidateNode).Node.Value
}
lhs, err := d.GetMatchingNodes(matchingNodes, pathNode.Lhs)
if err != nil {
return Context{}, err
return nil, err
}
preferences := expressionNode.Operation.Preferences.(commentOpPreferences)
preferences := pathNode.Operation.Preferences.(*CommentOpPreferences)
comment := ""
if !expressionNode.Operation.UpdateAssign {
rhs, err := d.GetMatchingNodes(context, expressionNode.Rhs)
if err != nil {
return Context{}, err
}
if rhs.MatchingNodes.Front() != nil {
comment = rhs.MatchingNodes.Front().Value.(*CandidateNode).Node.Value
}
}
for el := lhs.MatchingNodes.Front(); el != nil; el = el.Next() {
for el := lhs.Front(); el != nil; el = el.Next() {
candidate := el.Value.(*CandidateNode)
if expressionNode.Operation.UpdateAssign {
rhs, err := d.GetMatchingNodes(context.SingleChildContext(candidate), expressionNode.Rhs)
if err != nil {
return Context{}, err
}
if rhs.MatchingNodes.Front() != nil {
comment = rhs.MatchingNodes.Front().Value.(*CandidateNode).Node.Value
}
}
log.Debugf("Setting comment of : %v", candidate.GetKey())
if preferences.LineComment {
candidate.Node.LineComment = comment
@@ -63,15 +48,15 @@ func assignCommentsOperator(d *dataTreeNavigator, context Context, expressionNod
}
}
return context, nil
return matchingNodes, nil
}
func getCommentsOperator(d *dataTreeNavigator, context Context, expressionNode *ExpressionNode) (Context, error) {
preferences := expressionNode.Operation.Preferences.(commentOpPreferences)
func GetCommentsOperator(d *dataTreeNavigator, matchingNodes *list.List, pathNode *PathTreeNode) (*list.List, error) {
preferences := pathNode.Operation.Preferences.(*CommentOpPreferences)
log.Debugf("GetComments operator!")
var results = list.New()
for el := context.MatchingNodes.Front(); el != nil; el = el.Next() {
for el := matchingNodes.Front(); el != nil; el = el.Next() {
candidate := el.Value.(*CandidateNode)
comment := ""
if preferences.LineComment {
@@ -84,8 +69,8 @@ func getCommentsOperator(d *dataTreeNavigator, context Context, expressionNode *
comment = strings.Replace(comment, "# ", "", 1)
node := &yaml.Node{Kind: yaml.ScalarNode, Value: comment, Tag: "!!str"}
result := candidate.CreateChild(nil, node)
results.PushBack(result)
lengthCand := &CandidateNode{Node: node, Document: candidate.Document, Path: candidate.Path}
results.PushBack(lengthCand)
}
return context.ChildContext(results), nil
return results, nil
}

View File

@@ -13,39 +13,6 @@ var commentOperatorScenarios = []expressionScenario{
"D0, P[], (doc)::a: cat # single\n",
},
},
{
skipDoc: true,
document: "a: cat\nb: dog",
expression: `.a lineComment=.b`,
expected: []string{
"D0, P[], (doc)::a: cat # dog\nb: dog\n",
},
},
{
skipDoc: true,
document: "a: cat\n---\na: dog",
expression: `.a lineComment |= documentIndex`,
expected: []string{
"D0, P[], (doc)::a: cat # 0\n",
"D1, P[], (doc)::a: dog # 1\n",
},
},
{
description: "Use update assign to perform relative updates",
document: "a: cat\nb: dog",
expression: `.. lineComment |= .`,
expected: []string{
"D0, P[], (!!map)::a: cat # cat\nb: dog # dog\n",
},
},
{
skipDoc: true,
document: "a: cat\nb: dog",
expression: `.. comments |= .`,
expected: []string{
"D0, P[], (!!map)::a: cat # cat\n# cat\n\n# cat\nb: dog # dog\n# dog\n\n# dog\n",
},
},
{
description: "Set head comment",
document: `a: cat`,
@@ -71,12 +38,11 @@ var commentOperatorScenarios = []expressionScenario{
},
},
{
description: "Remove all comments",
subdescription: "Note the use of `...` to ensure key nodes are included.",
document: "# hi\n\na: cat # comment\n\n# great\n\nb: # key comment",
expression: `... comments=""`,
description: "Remove all comments",
document: "# hi\n\na: cat # comment\n\n# great\n",
expression: `.. comments=""`,
expected: []string{
"D0, P[], (!!map)::a: cat\nb:\n",
"D0, P[], (!!map)::a: cat\n",
},
},
{

View File

@@ -6,7 +6,7 @@ import (
"gopkg.in/yaml.v3"
)
func createMapOperator(d *dataTreeNavigator, context Context, expressionNode *ExpressionNode) (Context, error) {
func CreateMapOperator(d *dataTreeNavigator, matchingNodes *list.List, pathNode *PathTreeNode) (*list.List, error) {
log.Debugf("-- createMapOperation")
//each matchingNodes entry should turn into a sequence of keys to create.
@@ -18,29 +18,29 @@ func createMapOperator(d *dataTreeNavigator, context Context, expressionNode *Ex
sequences := list.New()
if context.MatchingNodes.Len() > 0 {
if matchingNodes.Len() > 0 {
for matchingNodeEl := context.MatchingNodes.Front(); matchingNodeEl != nil; matchingNodeEl = matchingNodeEl.Next() {
for matchingNodeEl := matchingNodes.Front(); matchingNodeEl != nil; matchingNodeEl = matchingNodeEl.Next() {
matchingNode := matchingNodeEl.Value.(*CandidateNode)
sequenceNode, err := sequenceFor(d, context, matchingNode, expressionNode)
sequenceNode, err := sequenceFor(d, matchingNode, pathNode)
if err != nil {
return Context{}, err
return nil, err
}
sequences.PushBack(sequenceNode)
}
} else {
sequenceNode, err := sequenceFor(d, context, nil, expressionNode)
sequenceNode, err := sequenceFor(d, nil, pathNode)
if err != nil {
return Context{}, err
return nil, err
}
sequences.PushBack(sequenceNode)
}
return context.SingleChildContext(&CandidateNode{Node: listToNodeSeq(sequences), Document: document, Path: path}), nil
return nodeToMap(&CandidateNode{Node: listToNodeSeq(sequences), Document: document, Path: path}), nil
}
func sequenceFor(d *dataTreeNavigator, context Context, matchingNode *CandidateNode, expressionNode *ExpressionNode) (*CandidateNode, error) {
func sequenceFor(d *dataTreeNavigator, matchingNode *CandidateNode, pathNode *PathTreeNode) (*CandidateNode, error) {
var path []interface{}
var document uint = 0
var matches = list.New()
@@ -48,17 +48,17 @@ func sequenceFor(d *dataTreeNavigator, context Context, matchingNode *CandidateN
if matchingNode != nil {
path = matchingNode.Path
document = matchingNode.Document
matches.PushBack(matchingNode)
matches = nodeToMap(matchingNode)
}
mapPairs, err := crossFunction(d, context.ChildContext(matches), expressionNode,
func(d *dataTreeNavigator, context Context, lhs *CandidateNode, rhs *CandidateNode) (*CandidateNode, error) {
mapPairs, err := crossFunction(d, matches, pathNode,
func(d *dataTreeNavigator, lhs *CandidateNode, rhs *CandidateNode) (*CandidateNode, error) {
node := yaml.Node{Kind: yaml.MappingNode, Tag: "!!map"}
log.Debugf("LHS:", NodeToString(lhs))
log.Debugf("RHS:", NodeToString(rhs))
node.Content = []*yaml.Node{
unwrapDoc(lhs.Node),
unwrapDoc(rhs.Node),
UnwrapDoc(lhs.Node),
UnwrapDoc(rhs.Node),
}
return &CandidateNode{Node: &node, Document: document, Path: path}, nil
@@ -67,7 +67,7 @@ func sequenceFor(d *dataTreeNavigator, context Context, matchingNode *CandidateN
if err != nil {
return nil, err
}
innerList := listToNodeSeq(mapPairs.MatchingNodes)
innerList := listToNodeSeq(mapPairs)
innerList.Style = yaml.FlowStyle
return &CandidateNode{Node: innerList, Document: document, Path: path}, nil
}

View File

@@ -1,69 +1,42 @@
package yqlib
import (
"fmt"
"container/list"
yaml "gopkg.in/yaml.v3"
)
func deleteChildOperator(d *dataTreeNavigator, context Context, expressionNode *ExpressionNode) (Context, error) {
func DeleteChildOperator(d *dataTreeNavigator, matchingNodes *list.List, pathNode *PathTreeNode) (*list.List, error) {
// for each lhs, splat the node,
// the intersect it against the rhs expression
// recreate the contents using only the intersection result.
nodesToDelete, err := d.GetMatchingNodes(context, expressionNode.Rhs)
if err != nil {
return Context{}, err
}
for el := nodesToDelete.MatchingNodes.Front(); el != nil; el = el.Next() {
for el := matchingNodes.Front(); el != nil; el = el.Next() {
candidate := el.Value.(*CandidateNode)
deleteImmediateChildOp := &Operation{
OperationType: deleteImmediateChildOpType,
Value: candidate.Path[len(candidate.Path)-1],
}
deleteImmediateChildOpNode := &ExpressionNode{
Operation: deleteImmediateChildOp,
Rhs: createTraversalTree(candidate.Path[0:len(candidate.Path)-1], traversePreferences{}),
}
_, err := d.GetMatchingNodes(context, deleteImmediateChildOpNode)
elMap := list.New()
elMap.PushBack(candidate)
nodesToDelete, err := d.GetMatchingNodes(elMap, pathNode.Rhs)
log.Debug("nodesToDelete:\n%v", NodesToString(nodesToDelete))
if err != nil {
return Context{}, err
return nil, err
}
}
return context, nil
}
func deleteImmediateChildOperator(d *dataTreeNavigator, context Context, expressionNode *ExpressionNode) (Context, error) {
parents, err := d.GetMatchingNodes(context, expressionNode.Rhs)
realNode := UnwrapDoc(candidate.Node)
if err != nil {
return Context{}, err
}
childPath := expressionNode.Operation.Value
log.Debug("childPath to remove %v", childPath)
for el := parents.MatchingNodes.Front(); el != nil; el = el.Next() {
parent := el.Value.(*CandidateNode)
parentNode := unwrapDoc(parent.Node)
if parentNode.Kind == yaml.MappingNode {
deleteFromMap(parent, childPath)
} else if parentNode.Kind == yaml.SequenceNode {
deleteFromArray(parent, childPath)
if realNode.Kind == yaml.SequenceNode {
deleteFromArray(candidate, nodesToDelete)
} else if realNode.Kind == yaml.MappingNode {
deleteFromMap(candidate, nodesToDelete)
} else {
return Context{}, fmt.Errorf("Cannot delete nodes from parent of tag %v", parentNode.Tag)
log.Debug("Cannot delete from node that's not a map or array %v", NodeToString(candidate))
}
}
return context, nil
return matchingNodes, nil
}
func deleteFromMap(candidate *CandidateNode, childPath interface{}) {
func deleteFromMap(candidate *CandidateNode, nodesToDelete *list.List) {
log.Debug("deleteFromMap")
node := unwrapDoc(candidate.Node)
node := UnwrapDoc(candidate.Node)
contents := node.Content
newContents := make([]*yaml.Node, 0)
@@ -71,9 +44,18 @@ func deleteFromMap(candidate *CandidateNode, childPath interface{}) {
key := contents[index]
value := contents[index+1]
childCandidate := candidate.CreateChild(key.Value, value)
childCandidate := &CandidateNode{
Node: value,
Document: candidate.Document,
Path: append(candidate.Path, key.Value),
}
shouldDelete := key.Value == childPath
shouldDelete := false
for el := nodesToDelete.Front(); el != nil && !shouldDelete; el = el.Next() {
if el.Value.(*CandidateNode).GetKey() == childCandidate.GetKey() {
shouldDelete = true
}
}
log.Debugf("shouldDelete %v ? %v", childCandidate.GetKey(), shouldDelete)
@@ -84,16 +66,27 @@ func deleteFromMap(candidate *CandidateNode, childPath interface{}) {
node.Content = newContents
}
func deleteFromArray(candidate *CandidateNode, childPath interface{}) {
func deleteFromArray(candidate *CandidateNode, nodesToDelete *list.List) {
log.Debug("deleteFromArray")
node := unwrapDoc(candidate.Node)
node := UnwrapDoc(candidate.Node)
contents := node.Content
newContents := make([]*yaml.Node, 0)
for index := 0; index < len(contents); index = index + 1 {
value := contents[index]
shouldDelete := fmt.Sprintf("%v", index) == fmt.Sprintf("%v", childPath)
childCandidate := &CandidateNode{
Node: value,
Document: candidate.Document,
Path: append(candidate.Path, index),
}
shouldDelete := false
for el := nodesToDelete.Front(); el != nil && !shouldDelete; el = el.Next() {
if el.Value.(*CandidateNode).GetKey() == childCandidate.GetKey() {
shouldDelete = true
}
}
if !shouldDelete {
newContents = append(newContents, value)

View File

@@ -13,22 +13,6 @@ var deleteOperatorScenarios = []expressionScenario{
"D0, P[], (doc)::{a: cat}\n",
},
},
{
description: "Delete nested entry in map",
document: `{a: {a1: fred, a2: frood}}`,
expression: `del(.a.a1)`,
expected: []string{
"D0, P[], (doc)::{a: {a2: frood}}\n",
},
},
{
skipDoc: true,
document: `{a: {a1: fred, a2: frood}}`,
expression: `del(.. | select(.=="frood"))`,
expected: []string{
"D0, P[], (!!map)::{a: {a1: fred}}\n",
},
},
{
description: "Delete entry in array",
document: `[1,2,3]`,
@@ -37,14 +21,6 @@ var deleteOperatorScenarios = []expressionScenario{
"D0, P[], (doc)::[1, 3]\n",
},
},
{
description: "Delete nested entry in array",
document: `[{a: cat, b: dog}]`,
expression: `del(.[0].a)`,
expected: []string{
"D0, P[], (doc)::[{b: dog}]\n",
},
},
{
description: "Delete no matches",
document: `{a: cat, b: dog}`,
@@ -61,14 +37,6 @@ var deleteOperatorScenarios = []expressionScenario{
"D0, P[], (doc)::{b: dog}\n",
},
},
{
description: "Recursively delete matching keys",
document: `{a: {name: frog, b: {name: blog, age: 12}}}`,
expression: `del(.. | select(has("name")).name)`,
expected: []string{
"D0, P[], (!!map)::{a: {b: {age: 12}}}\n",
},
},
}
func TestDeleteOperatorScenarios(t *testing.T) {

View File

@@ -7,14 +7,14 @@ import (
"gopkg.in/yaml.v3"
)
func getDocumentIndexOperator(d *dataTreeNavigator, context Context, expressionNode *ExpressionNode) (Context, error) {
func GetDocumentIndexOperator(d *dataTreeNavigator, matchingNodes *list.List, pathNode *PathTreeNode) (*list.List, error) {
var results = list.New()
for el := context.MatchingNodes.Front(); el != nil; el = el.Next() {
for el := matchingNodes.Front(); el != nil; el = el.Next() {
candidate := el.Value.(*CandidateNode)
node := &yaml.Node{Kind: yaml.ScalarNode, Value: fmt.Sprintf("%v", candidate.Document), Tag: "!!int"}
scalar := candidate.CreateChild(nil, node)
scalar := &CandidateNode{Node: node, Document: candidate.Document, Path: candidate.Path}
results.PushBack(scalar)
}
return context.ChildContext(results), nil
return results, nil
}

View File

@@ -14,27 +14,10 @@ var documentIndexScenarios = []expressionScenario{
"D1, P[a], (!!int)::1\n",
},
},
{
description: "Retrieve a document index, shorthand",
document: "a: cat\n---\na: frog\n",
expression: `.a | di`,
expected: []string{
"D0, P[a], (!!int)::0\n",
"D1, P[a], (!!int)::1\n",
},
},
{
description: "Filter by document index",
document: "a: cat\n---\na: frog\n",
expression: `select(documentIndex == 1)`,
expected: []string{
"D1, P[], (doc)::a: frog\n",
},
},
{
description: "Filter by document index shorthand",
document: "a: cat\n---\na: frog\n",
expression: `select(di == 1)`,
expression: `select(. | documentIndex == 1)`,
expected: []string{
"D1, P[], (doc)::a: frog\n",
},
@@ -42,7 +25,7 @@ var documentIndexScenarios = []expressionScenario{
{
description: "Print Document Index with matches",
document: "a: cat\n---\na: frog\n",
expression: `.a | ({"match": ., "doc": documentIndex})`,
expression: `.a | ({"match": ., "doc": (. | documentIndex)})`,
expected: []string{
"D0, P[], (!!map)::match: cat\ndoc: 0\n",
"D0, P[], (!!map)::match: frog\ndoc: 1\n",

View File

@@ -1,49 +0,0 @@
package yqlib
import (
"fmt"
"os"
"strings"
yaml "gopkg.in/yaml.v3"
)
type envOpPreferences struct {
StringValue bool
}
func envOperator(d *dataTreeNavigator, context Context, expressionNode *ExpressionNode) (Context, error) {
envName := expressionNode.Operation.CandidateNode.Node.Value
log.Debug("EnvOperator, env name:", envName)
rawValue := os.Getenv(envName)
preferences := expressionNode.Operation.Preferences.(envOpPreferences)
var node *yaml.Node
if preferences.StringValue {
node = &yaml.Node{
Kind: yaml.ScalarNode,
Tag: "!!str",
Value: rawValue,
}
} else if rawValue == "" {
return Context{}, fmt.Errorf("Value for env variable '%v' not provided in env()", envName)
} else {
var dataBucket yaml.Node
decoder := yaml.NewDecoder(strings.NewReader(rawValue))
errorReading := decoder.Decode(&dataBucket)
if errorReading != nil {
return Context{}, errorReading
}
//first node is a doc
node = unwrapDoc(&dataBucket)
}
log.Debug("ENV tag", node.Tag)
log.Debug("ENV value", node.Value)
log.Debug("ENV Kind", node.Kind)
target := &CandidateNode{Node: node}
return context.SingleChildContext(target), nil
}

View File

@@ -1,72 +0,0 @@
package yqlib
import (
"testing"
)
var envOperatorScenarios = []expressionScenario{
{
description: "Read string environment variable",
environmentVariable: "cat meow",
expression: `.a = env(myenv)`,
expected: []string{
"D0, P[], ()::a: cat meow\n",
},
},
{
description: "Read boolean environment variable",
environmentVariable: "true",
expression: `.a = env(myenv)`,
expected: []string{
"D0, P[], ()::a: true\n",
},
},
{
description: "Read numeric environment variable",
environmentVariable: "12",
expression: `.a = env(myenv)`,
expected: []string{
"D0, P[], ()::a: 12\n",
},
},
{
description: "Read yaml environment variable",
environmentVariable: "{b: fish}",
expression: `.a = env(myenv)`,
expected: []string{
"D0, P[], ()::a: {b: fish}\n",
},
},
{
description: "Read boolean environment variable as a string",
environmentVariable: "true",
expression: `.a = strenv(myenv)`,
expected: []string{
"D0, P[], ()::a: \"true\"\n",
},
},
{
description: "Read numeric environment variable as a string",
environmentVariable: "12",
expression: `.a = strenv(myenv)`,
expected: []string{
"D0, P[], ()::a: \"12\"\n",
},
},
{
description: "Dynamic key lookup with environment variable",
environmentVariable: "cat",
document: `{cat: meow, dog: woof}`,
expression: `.[env(myenv)]`,
expected: []string{
"D0, P[cat], (!!str)::meow\n",
},
},
}
func TestEnvOperatorScenarios(t *testing.T) {
for _, tt := range envOperatorScenarios {
testScenario(t, &tt)
}
documentScenarios(t, "Env Variable Operators", envOperatorScenarios)
}

View File

@@ -1,20 +1,21 @@
package yqlib
func equalsOperator(d *dataTreeNavigator, context Context, expressionNode *ExpressionNode) (Context, error) {
import (
"container/list"
)
func EqualsOperator(d *dataTreeNavigator, matchingNodes *list.List, pathNode *PathTreeNode) (*list.List, error) {
log.Debugf("-- equalsOperation")
return crossFunction(d, context, expressionNode, isEquals)
return crossFunction(d, matchingNodes, pathNode, isEquals)
}
func isEquals(d *dataTreeNavigator, context Context, lhs *CandidateNode, rhs *CandidateNode) (*CandidateNode, error) {
func isEquals(d *dataTreeNavigator, lhs *CandidateNode, rhs *CandidateNode) (*CandidateNode, error) {
value := false
lhsNode := unwrapDoc(lhs.Node)
rhsNode := unwrapDoc(rhs.Node)
if lhsNode.Tag == "!!null" {
value = (rhsNode.Tag == "!!null")
if lhs.Node.Tag == "!!null" {
value = (rhs.Node.Tag == "!!null")
} else {
value = matchKey(lhsNode.Value, rhsNode.Value)
value = Match(lhs.Node.Value, rhs.Node.Value)
}
log.Debugf("%v == %v ? %v", NodeToString(lhs), NodeToString(rhs), value)
return createBooleanCandidate(lhs, value), nil

View File

@@ -5,15 +5,6 @@ import (
)
var equalsOperatorScenarios = []expressionScenario{
{
skipDoc: true,
document: "cat",
document2: "dog",
expression: "select(fi==0) == select(fi==1)",
expected: []string{
"D0, P[], (!!bool)::false\n",
},
},
{
description: "Match string",
document: `[cat,goat,dog]`,

View File

@@ -0,0 +1,151 @@
package yqlib
import (
"container/list"
"gopkg.in/yaml.v3"
)
func ExplodeOperator(d *dataTreeNavigator, matchMap *list.List, pathNode *PathTreeNode) (*list.List, error) {
log.Debugf("-- ExplodeOperation")
for el := matchMap.Front(); el != nil; el = el.Next() {
candidate := el.Value.(*CandidateNode)
rhs, err := d.GetMatchingNodes(nodeToMap(candidate), pathNode.Rhs)
if err != nil {
return nil, err
}
for childEl := rhs.Front(); childEl != nil; childEl = childEl.Next() {
err = explodeNode(childEl.Value.(*CandidateNode).Node)
if err != nil {
return nil, err
}
}
}
return matchMap, nil
}
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!")
if node.Alias != nil {
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:
var newContent = list.New()
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 != "<<" {
err := overrideEntry(node, keyNode, valueNode, index, newContent)
if err != nil {
return err
}
} else {
if valueNode.Kind == yaml.SequenceNode {
log.Debugf("an alias merge list!")
for index := 0; index < len(valueNode.Content); index = index + 1 {
aliasNode := valueNode.Content[index]
err := applyAlias(node, aliasNode.Alias, index, newContent)
if err != nil {
return err
}
}
} else {
log.Debugf("an alias merge!")
err := applyAlias(node, valueNode.Alias, index, newContent)
if err != nil {
return err
}
}
}
}
node.Content = make([]*yaml.Node, newContent.Len())
index := 0
for newEl := newContent.Front(); newEl != nil; newEl = newEl.Next() {
node.Content[index] = newEl.Value.(*yaml.Node)
index++
}
return nil
default:
return nil
}
}
func applyAlias(node *yaml.Node, alias *yaml.Node, aliasIndex int, newContent *list.List) error {
if alias == nil {
return nil
}
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]
err := overrideEntry(node, keyNode, valueNode, aliasIndex, newContent)
if err != nil {
return err
}
}
return nil
}
func overrideEntry(node *yaml.Node, key *yaml.Node, value *yaml.Node, startIndex int, newContent *list.List) error {
err := explodeNode(value)
if err != nil {
return err
}
for newEl := newContent.Front(); newEl != nil; newEl = newEl.Next() {
valueEl := newEl.Next() // move forward twice
keyNode := newEl.Value.(*yaml.Node)
log.Debugf("checking new content %v:%v", keyNode.Value, valueEl.Value.(*yaml.Node).Value)
if keyNode.Value == key.Value && keyNode.Alias == nil && key.Alias == nil {
log.Debugf("overridign new content")
valueEl.Value = value
return nil
}
newEl = valueEl // move forward twice
}
for index := startIndex + 2; index < len(node.Content); index = index + 2 {
keyNode := node.Content[index]
if keyNode.Value == key.Value && keyNode.Alias == nil {
log.Debugf("content will be overridden at index %v", index)
return nil
}
}
err = explodeNode(key)
if err != nil {
return err
}
log.Debugf("adding %v:%v", key.Value, value.Value)
newContent.PushBack(key)
newContent.PushBack(value)
return nil
}

View File

@@ -4,55 +4,7 @@ import (
"testing"
)
var anchorOperatorScenarios = []expressionScenario{
{
description: "Get anchor",
document: `a: &billyBob cat`,
expression: `.a | anchor`,
expected: []string{
"D0, P[a], (!!str)::billyBob\n",
},
},
{
description: "Set anchor",
document: `a: cat`,
expression: `.a anchor = "foobar"`,
expected: []string{
"D0, P[], (doc)::a: &foobar cat\n",
},
},
{
description: "Set anchor relatively using assign-update",
document: `a: {b: cat}`,
expression: `.a anchor |= .b`,
expected: []string{
"D0, P[], (doc)::a: &cat {b: cat}\n",
},
},
{
description: "Get alias",
document: `{b: &billyBob meow, a: *billyBob}`,
expression: `.a | alias`,
expected: []string{
"D0, P[a], (!!str)::billyBob\n",
},
},
{
description: "Set alias",
document: `{b: &meow purr, a: cat}`,
expression: `.a alias = "meow"`,
expected: []string{
"D0, P[], (doc)::{b: &meow purr, a: *meow}\n",
},
},
{
description: "Set alias relatively using assign-update",
document: `{b: &meow purr, a: {f: meow}}`,
expression: `.a alias |= .f`,
expected: []string{
"D0, P[], (doc)::{b: &meow purr, a: *meow}\n",
},
},
var explodeTest = []expressionScenario{
{
description: "Explode alias and anchor",
document: `{f : {a: &a cat, b: *a}}`,
@@ -130,9 +82,9 @@ foobar:
},
}
func TestAnchorAliaseOperatorScenarios(t *testing.T) {
for _, tt := range anchorOperatorScenarios {
func TestExplodeOperatorScenarios(t *testing.T) {
for _, tt := range explodeTest {
testScenario(t, &tt)
}
documentScenarios(t, "Anchor and Alias Operators", anchorOperatorScenarios)
documentScenarios(t, "Explode", explodeTest)
}

View File

@@ -7,32 +7,32 @@ import (
yaml "gopkg.in/yaml.v3"
)
func getFilenameOperator(d *dataTreeNavigator, context Context, expressionNode *ExpressionNode) (Context, error) {
func GetFilenameOperator(d *dataTreeNavigator, matchingNodes *list.List, pathNode *PathTreeNode) (*list.List, error) {
log.Debugf("GetFilename")
var results = list.New()
for el := context.MatchingNodes.Front(); el != nil; el = el.Next() {
for el := matchingNodes.Front(); el != nil; el = el.Next() {
candidate := el.Value.(*CandidateNode)
node := &yaml.Node{Kind: yaml.ScalarNode, Value: candidate.Filename, Tag: "!!str"}
result := candidate.CreateChild(nil, node)
results.PushBack(result)
lengthCand := &CandidateNode{Node: node, Document: candidate.Document, Path: candidate.Path}
results.PushBack(lengthCand)
}
return context.ChildContext(results), nil
return results, nil
}
func getFileIndexOperator(d *dataTreeNavigator, context Context, expressionNode *ExpressionNode) (Context, error) {
func GetFileIndexOperator(d *dataTreeNavigator, matchingNodes *list.List, pathNode *PathTreeNode) (*list.List, error) {
log.Debugf("GetFileIndex")
var results = list.New()
for el := context.MatchingNodes.Front(); el != nil; el = el.Next() {
for el := matchingNodes.Front(); el != nil; el = el.Next() {
candidate := el.Value.(*CandidateNode)
node := &yaml.Node{Kind: yaml.ScalarNode, Value: fmt.Sprintf("%v", candidate.FileIndex), Tag: "!!int"}
result := candidate.CreateChild(nil, node)
results.PushBack(result)
lengthCand := &CandidateNode{Node: node, Document: candidate.Document, Path: candidate.Path}
results.PushBack(lengthCand)
}
return context.ChildContext(results), nil
return results, nil
}

View File

@@ -21,22 +21,6 @@ var fileOperatorScenarios = []expressionScenario{
"D0, P[], (!!int)::0\n",
},
},
{
description: "Get file index alias",
document: `{a: cat}`,
expression: `fi`,
expected: []string{
"D0, P[], (!!int)::0\n",
},
},
{
skipDoc: true,
document: "a: cat\nb: dog",
expression: `.. lineComment |= filename`,
expected: []string{
"D0, P[], (!!map)::a: cat # sample.yml\nb: dog # sample.yml\n",
},
},
}
func TestFileOperatorsScenarios(t *testing.T) {

View File

@@ -7,26 +7,25 @@ import (
yaml "gopkg.in/yaml.v3"
)
func hasOperator(d *dataTreeNavigator, context Context, expressionNode *ExpressionNode) (Context, error) {
func HasOperator(d *dataTreeNavigator, matchingNodes *list.List, pathNode *PathTreeNode) (*list.List, error) {
log.Debugf("-- hasOperation")
var results = list.New()
rhs, err := d.GetMatchingNodes(context, expressionNode.Rhs)
wanted := rhs.MatchingNodes.Front().Value.(*CandidateNode).Node
rhs, err := d.GetMatchingNodes(matchingNodes, pathNode.Rhs)
wanted := rhs.Front().Value.(*CandidateNode).Node
wantedKey := wanted.Value
if err != nil {
return Context{}, err
return nil, err
}
for el := context.MatchingNodes.Front(); el != nil; el = el.Next() {
for el := matchingNodes.Front(); el != nil; el = el.Next() {
candidate := el.Value.(*CandidateNode)
// grab the first value
candidateNode := unwrapDoc(candidate.Node)
var contents = candidateNode.Content
switch candidateNode.Kind {
var contents = candidate.Node.Content
switch candidate.Node.Kind {
case yaml.MappingNode:
candidateHasKey := false
for index := 0; index < len(contents) && !candidateHasKey; index = index + 2 {
@@ -41,7 +40,7 @@ func hasOperator(d *dataTreeNavigator, context Context, expressionNode *Expressi
if wanted.Tag == "!!int" {
var number, errParsingInt = strconv.ParseInt(wantedKey, 10, 64) // nolint
if errParsingInt != nil {
return Context{}, errParsingInt
return nil, errParsingInt
}
candidateHasKey = int64(len(contents)) > number
}
@@ -50,5 +49,5 @@ func hasOperator(d *dataTreeNavigator, context Context, expressionNode *Expressi
results.PushBack(createBooleanCandidate(candidate, false))
}
}
return context.ChildContext(results), nil
return results, nil
}

View File

@@ -5,14 +5,6 @@ import (
)
var hasOperatorScenarios = []expressionScenario{
{
skipDoc: true,
document: `a: hello`,
expression: `has("a")`,
expected: []string{
"D0, P[], (!!bool)::true\n",
},
},
{
description: "Has map key",
document: `- a: "yes"

View File

@@ -1,54 +0,0 @@
package yqlib
import (
"container/list"
"fmt"
"gopkg.in/yaml.v3"
)
func keysOperator(d *dataTreeNavigator, context Context, expressionNode *ExpressionNode) (Context, error) {
log.Debugf("-- keysOperator")
var results = list.New()
for el := context.MatchingNodes.Front(); el != nil; el = el.Next() {
candidate := el.Value.(*CandidateNode)
node := unwrapDoc(candidate.Node)
var targetNode *yaml.Node
if node.Kind == yaml.MappingNode {
targetNode = getMapKeys(node)
} else if node.Kind == yaml.SequenceNode {
targetNode = getIndicies(node)
} else {
return Context{}, fmt.Errorf("Cannot get keys of %v, keys only works for maps and arrays", node.Tag)
}
result := candidate.CreateChild(nil, targetNode)
results.PushBack(result)
}
return context.ChildContext(results), nil
}
func getMapKeys(node *yaml.Node) *yaml.Node {
contents := make([]*yaml.Node, 0)
for index := 0; index < len(node.Content); index = index + 2 {
contents = append(contents, node.Content[index])
}
return &yaml.Node{Kind: yaml.SequenceNode, Tag: "!!seq", Content: contents}
}
func getIndicies(node *yaml.Node) *yaml.Node {
var contents = make([]*yaml.Node, len(node.Content))
for index := range node.Content {
contents[index] = &yaml.Node{
Kind: yaml.ScalarNode,
Tag: "!!int",
Value: fmt.Sprintf("%v", index),
}
}
return &yaml.Node{Kind: yaml.SequenceNode, Tag: "!!seq", Content: contents}
}

View File

@@ -1,47 +0,0 @@
package yqlib
import (
"testing"
)
var keysOperatorScenarios = []expressionScenario{
{
description: "Map keys",
document: `{dog: woof, cat: meow}`,
expression: `keys`,
expected: []string{
"D0, P[], (!!seq)::- dog\n- cat\n",
},
},
{
skipDoc: true,
document: `{}`,
expression: `keys`,
expected: []string{
"D0, P[], (!!seq)::[]\n",
},
},
{
description: "Array keys",
document: `[apple, banana]`,
expression: `keys`,
expected: []string{
"D0, P[], (!!seq)::- 0\n- 1\n",
},
},
{
skipDoc: true,
document: `[]`,
expression: `keys`,
expected: []string{
"D0, P[], (!!seq)::[]\n",
},
},
}
func TestKeysOperatorScenarios(t *testing.T) {
for _, tt := range keysOperatorScenarios {
testScenario(t, &tt)
}
documentScenarios(t, "Keys", keysOperatorScenarios)
}

View File

@@ -7,21 +7,17 @@ import (
yaml "gopkg.in/yaml.v3"
)
func lengthOperator(d *dataTreeNavigator, context Context, expressionNode *ExpressionNode) (Context, error) {
func LengthOperator(d *dataTreeNavigator, matchMap *list.List, pathNode *PathTreeNode) (*list.List, error) {
log.Debugf("-- lengthOperation")
var results = list.New()
for el := context.MatchingNodes.Front(); el != nil; el = el.Next() {
for el := matchMap.Front(); el != nil; el = el.Next() {
candidate := el.Value.(*CandidateNode)
targetNode := unwrapDoc(candidate.Node)
targetNode := UnwrapDoc(candidate.Node)
var length int
switch targetNode.Kind {
case yaml.ScalarNode:
if targetNode.Tag == "!!null" {
length = 0
} else {
length = len(targetNode.Value)
}
length = len(targetNode.Value)
case yaml.MappingNode:
length = len(targetNode.Content) / 2
case yaml.SequenceNode:
@@ -31,9 +27,9 @@ func lengthOperator(d *dataTreeNavigator, context Context, expressionNode *Expre
}
node := &yaml.Node{Kind: yaml.ScalarNode, Value: fmt.Sprintf("%v", length), Tag: "!!int"}
result := candidate.CreateChild(nil, node)
results.PushBack(result)
lengthCand := &CandidateNode{Node: node, Document: candidate.Document, Path: candidate.Path}
results.PushBack(lengthCand)
}
return context.ChildContext(results), nil
return results, nil
}

View File

@@ -14,30 +14,6 @@ var lengthOperatorScenarios = []expressionScenario{
"D0, P[a], (!!int)::3\n",
},
},
{
description: "null length",
document: `{a: null}`,
expression: `.a | length`,
expected: []string{
"D0, P[a], (!!int)::0\n",
},
},
{
skipDoc: true,
document: `{a: ~}`,
expression: `.a | length`,
expected: []string{
"D0, P[a], (!!int)::0\n",
},
},
{
skipDoc: true,
document: `{a: key no exist}`,
expression: `.b | length`,
expected: []string{
"D0, P[b], (!!int)::0\n",
},
},
{
description: "Map length",
subdescription: "returns number of entries",

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