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Add infrastructure to lint YAML files
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A task and GitHub Actions workflow are provided here for linting the project's YAML files.

On every push and pull request that affects relevant files, the worflow will run yamllint to check the YAML files of
the repository for issues.

The .yamllint.yml file is used to configure yamllint:
https://yamllint.readthedocs.io/en/stable/configuration.html
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per1234 committed Mar 25, 2023
1 parent 262ae70 commit ed46182
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115 changes: 115 additions & 0 deletions .github/workflows/check-yaml-task.yml
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# Source: https://github.com/arduino/tooling-project-assets/blob/main/workflow-templates/check-yaml-task.md
name: Check YAML

# See: https://docs.github.com/actions/using-workflows/events-that-trigger-workflows
on:
create:
push:
paths:
- ".python-version"
- ".yamllint*"
- "poetry.lock"
- "pyproject.toml"
# Source: https://github.com/ikatyang/linguist-languages/blob/master/data/YAML.json (used by Prettier)
- "**/.clang-format"
- "**/.clang-tidy"
- "**/.gemrc"
- "**/glide.lock"
- "**.ya?ml*"
- "**.mir"
- "**.reek"
- "**.rviz"
- "**.sublime-syntax"
- "**.syntax"
pull_request:
paths:
- ".python-version"
- ".yamllint*"
- "poetry.lock"
- "pyproject.toml"
# Source: https://github.com/ikatyang/linguist-languages/blob/master/data/YAML.json (used by Prettier)
- "**/.clang-format"
- "**/.clang-tidy"
- "**/.gemrc"
- "**/glide.lock"
- "**.ya?ml*"
- "**.mir"
- "**.reek"
- "**.rviz"
- "**.sublime-syntax"
- "**.syntax"
schedule:
# Run periodically to catch breakage caused by external changes.
- cron: "0 9 * * WED"
workflow_dispatch:
repository_dispatch:

jobs:
run-determination:
runs-on: ubuntu-latest
outputs:
result: ${{ steps.determination.outputs.result }}
steps:
- name: Determine if the rest of the workflow should run
id: determination
run: |
RELEASE_BRANCH_REGEX="refs/heads/[0-9]+.[0-9]+.x"
# The `create` event trigger doesn't support `branches` filters, so it's necessary to use Bash instead.
if [[
"${{ github.event_name }}" != "create" ||
"${{ github.ref }}" =~ $RELEASE_BRANCH_REGEX
]]; then
# Run the other jobs.
RESULT="true"
else
# There is no need to run the other jobs.
RESULT="false"
fi
echo "result=$RESULT" >> $GITHUB_OUTPUT
check:
name: ${{ matrix.configuration.name }}
needs: run-determination
if: needs.run-determination.outputs.result == 'true'
runs-on: ubuntu-latest

strategy:
fail-fast: false

matrix:
configuration:
- name: Generate problem matcher output
# yamllint's "github" output type produces annotated diffs, but is not useful to humans reading the log.
format: github
# The other matrix job is used to set the result, so this job is configured to always pass.
continue-on-error: true
- name: Check formatting
# yamllint's "colored" output type is most suitable for humans reading the log.
format: colored
continue-on-error: false

steps:
- name: Checkout repository
uses: actions/checkout@v3

- name: Install Python
uses: actions/setup-python@v4
with:
python-version-file: .python-version

- name: Install Poetry
run: |
pipx install \
--python "$(which python)" \
poetry
- name: Install Task
uses: arduino/setup-task@v1
with:
repo-token: ${{ secrets.GITHUB_TOKEN }}
version: 3.x

- name: Check YAML
continue-on-error: ${{ matrix.configuration.continue-on-error }}
run: task yaml:lint YAMLLINT_FORMAT=${{ matrix.configuration.format }}
76 changes: 76 additions & 0 deletions .yamllint.yml
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# Source: https://github.com/arduino/tooling-project-assets/blob/main/workflow-templates/assets/check-yaml/.yamllint.yml
# See: https://yamllint.readthedocs.io/en/stable/configuration.html
# The code style defined in this file is the official standardized style to be used in all Arduino tooling projects and
# should not be modified.
# Note: Rules disabled solely because they are redundant to Prettier are marked with a "Prettier" comment.

rules:
braces:
level: error
forbid: non-empty
min-spaces-inside: -1 # Prettier
max-spaces-inside: -1 # Prettier
min-spaces-inside-empty: -1 # Prettier
max-spaces-inside-empty: -1 # Prettier
brackets:
level: error
forbid: non-empty
min-spaces-inside: -1 # Prettier
max-spaces-inside: -1 # Prettier
min-spaces-inside-empty: -1 # Prettier
max-spaces-inside-empty: -1 # Prettier
colons: disable # Prettier
commas: disable # Prettier
comments: disable # Prettier
comments-indentation: disable # Prettier
document-end: disable # Prettier
document-start: disable
empty-lines: disable # Prettier
empty-values: disable
hyphens: disable # Prettier
indentation: disable # Prettier
key-duplicates: disable # Prettier
key-ordering: disable
line-length:
level: warning
max: 120
allow-non-breakable-words: true
allow-non-breakable-inline-mappings: true
new-line-at-end-of-file: disable # Prettier
new-lines: disable # Prettier
octal-values:
level: warning
forbid-implicit-octal: true
forbid-explicit-octal: false
quoted-strings: disable
trailing-spaces: disable # Prettier
truthy:
level: error
allowed-values:
- "true"
- "false"
- "on" # Used by GitHub Actions as a workflow key.
check-keys: true

yaml-files:
# Source: https://github.com/ikatyang/linguist-languages/blob/master/data/YAML.json (used by Prettier)
- ".clang-format"
- ".clang-tidy"
- ".gemrc"
- ".yamllint"
- "glide.lock"
- "*.yml"
- "*.mir"
- "*.reek"
- "*.rviz"
- "*.sublime-syntax"
- "*.syntax"
- "*.yaml"
- "*.yaml-tmlanguage"
- "*.yaml.sed"
- "*.yml.mysql"

ignore: |
/.git/
__pycache__/
node_modules/
1 change: 1 addition & 0 deletions README.md
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Expand Up @@ -11,6 +11,7 @@
[![Check Taskfiles status](https://github.com/arduino/compile-sketches/actions/workflows/check-taskfiles.yml/badge.svg)](https://github.com/arduino/compile-sketches/actions/workflows/check-taskfiles.yml)
[![Check ToC status](https://github.com/arduino/compile-sketches/actions/workflows/check-toc-task.yml/badge.svg)](https://github.com/arduino/compile-sketches/actions/workflows/check-toc-task.yml)
[![Check Workflows status](https://github.com/arduino/compile-sketches/actions/workflows/check-workflows-task.yml/badge.svg)](https://github.com/arduino/compile-sketches/actions/workflows/check-workflows-task.yml)
[![Check YAML status](https://github.com/arduino/compile-sketches/actions/workflows/check-yaml-task.yml/badge.svg)](https://github.com/arduino/compile-sketches/actions/workflows/check-yaml-task.yml)
[![Spell Check status](https://github.com/arduino/compile-sketches/actions/workflows/spell-check-task.yml/badge.svg)](https://github.com/arduino/compile-sketches/actions/workflows/spell-check-task.yml)
[![Sync Labels status](https://github.com/arduino/compile-sketches/actions/workflows/sync-labels-npm.yml/badge.svg)](https://github.com/arduino/compile-sketches/actions/workflows/sync-labels-npm.yml)
[![Test Python status](https://github.com/arduino/compile-sketches/actions/workflows/test-python-poetry-task.yml/badge.svg)](https://github.com/arduino/compile-sketches/actions/workflows/test-python-poetry-task.yml)
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11 changes: 11 additions & 0 deletions Taskfile.yml
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Expand Up @@ -19,6 +19,7 @@ tasks:
- task: npm:validate
- task: python:lint
- task: python:test
- task: yaml:lint

fix:
desc: Make automated corrections to the project's files
Expand Down Expand Up @@ -474,3 +475,13 @@ tasks:
else
echo "{{.RAW_PATH}}"
fi
# Source: https://github.com/arduino/tooling-project-assets/blob/main/workflow-templates/assets/check-yaml-task/Taskfile.yml
yaml:lint:
desc: Check for problems with YAML files
deps:
- task: poetry:install-deps
vars:
POETRY_GROUPS: dev
cmds:
- poetry run yamllint --format {{default "colored" .YAMLLINT_FORMAT}} .
35 changes: 34 additions & 1 deletion poetry.lock

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1 change: 1 addition & 0 deletions pyproject.toml
Original file line number Diff line number Diff line change
Expand Up @@ -22,6 +22,7 @@ pytest = "7.2.2"
pytest-mock = "3.10.0"
flake8 = "6.0.0"
pep8-naming = "0.13.3"
yamllint = "1.30.0"

[tool.poetry.group.external]
# Provided only for use by boards platforms
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