👷 chore(ci): Add linting workflow #43

	name: 🦄 PR

	on:
	pull_request:
	types: [ opened, edited, synchronize, reopened ]

	jobs:
	commitlint:
	name: Validate title
	runs-on: ubuntu-latest
	steps:
	- uses: actions/checkout@v3

	- uses: pnpm/action-setup@v2
	with:
	version: 8.7.6

	# Fetches the config package version from the `pnpm-lock.yaml` file.
	- name: Fetch config package version
	id: config-package-version
	env:
	GITMOJI_CONFIG_PACKAGE: "commitlint-config-gitmoji"
	run: \|
	echo "CONFIG_PACKAGE=$(grep -A 2 "$GITMOJI_CONFIG_PACKAGE" pnpm-lock.yaml \| awk '/version:/ {print "'"$GITMOJI_CONFIG_PACKAGE"'@" $2}')" >> "$GITHUB_OUTPUT"

	# Installs only the config package required for commitlint.
	- name: Install config package
	env:
	CONFIG_PACKAGE: "${{ steps.config-package-version.outputs.CONFIG_PACKAGE }}"
	run: \|
	pnpm add -w "$CONFIG_PACKAGE"

	# The validation is done based on the `commitlint.config.js` file.
	- name: Validate PR title
	env:
	# Sanitizes PR title as documented here:
	# https://docs.github.com/en/actions/security-guides/security-hardening-for-github-actions#using-an-intermediate-environment-variable
	PR_TITLE: "${{ github.event.pull_request.title }}"
	run: \|
	echo "$PR_TITLE" \| pnpm -s dlx commitlint

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