Update Mathlib Dependencies #1523

	name: Update Mathlib Dependencies

	on:
	schedule:
	- cron: '0 * * * *' # This will run every hour

	jobs:
	update-dependencies:
	runs-on: ubuntu-latest
	steps:
	- name: Install elan
	run: \|
	set -o pipefail
	curl -sSfL "https://github.com/leanprover/elan/releases/download/v3.1.1/elan-x86_64-unknown-linux-gnu.tar.gz" \| tar xz
	./elan-init -y --default-toolchain none
	echo "$HOME/.elan/bin" >> "${GITHUB_PATH}"

	- name: Checkout repository
	uses: actions/checkout@v4
	with:
	fetch-depth: 0
	token: "${{ secrets.NIGHTLY_TESTING }}"

	- name: Configure Git User
	run: \|
	git config user.name "leanprover-community-mathlib4-bot"
	git config user.email "[email protected]"

	- name: Update dependencies
	run: lake update

	- name: Generate PR title
	run: \|
	echo "timestamp=$(date -u +"%Y-%m-%d-%H-%M")" >> "$GITHUB_ENV"
	echo "pr_title=chore: update Mathlib dependencies $(date -u +"%Y-%m-%d")" >> "$GITHUB_ENV"

	- name: Create Pull Request
	uses: peter-evans/create-pull-request@v6
	with:
	token: "${{ secrets.NIGHTLY_TESTING }}"
	commit-message: "chore: update Mathlib dependencies ${{ env.timestamp }}"
	# this branch is referenced in update_dependencies_zulip.yml
	branch: "update-dependencies-bot-use-only"
	base: master
	title: "${{ env.pr_title }}"
	body: "This PR updates the Mathlib dependencies."
	labels: "auto-merge-after-CI"

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