Update dependencies #21

	name: Update dependencies
	permissions:
	contents: read

	on:
	schedule:
	- cron: '0 2 * * *'
	workflow_dispatch:

	jobs:
	update-dependencies:
	permissions:
	contents: write
	pull-requests: write
	name: Update dependencies
	runs-on: ubuntu-latest

	steps:
	- uses: actions/checkout@d632683dd7b4114ad314bca15554477dd762a938 # v4.2.0

	# Checkout the depot tools they are needed by roll_deps.sh
	- name: Checkout depot tools
	run: git clone https://chromium.googlesource.com/chromium/tools/depot_tools.git

	- name: Update PATH
	run: echo "$(pwd)/depot_tools" >> $GITHUB_PATH

	- name: Download dependencies
	run: python3 utils/git-sync-deps

	- name: Setup git user information
	run: \|
	git config user.name "GitHub Actions[bot]"
	git config user.email "<>"
	git checkout -b roll_deps

	- name: Update dependencies
	run: \|
	utils/roll_deps.sh
	if [[ `git diff HEAD..origin/main --name-only \| wc -l` == 0 ]]; then
	echo "changed=false" >> $GITHUB_OUTPUT
	else
	echo "changed=true" >> $GITHUB_OUTPUT
	fi
	id: update_dependencies
	- name: Push changes and create PR
	if: steps.update_dependencies.outputs.changed == 'true'
	run: \|
	git push --force --set-upstream origin roll_deps
	# Create a PR. If it aready exists, the command fails, so ignore the return code.
	gh pr create --base main -f \|\| true
	# Add the 'kokoro:run' label so that the kokoro tests will be run.
	gh pr edit --add-label 'kokoro:run'
	gh pr merge --auto --squash
	env:
	GITHUB_TOKEN: ${{ github.token }}

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