.github/workflows/generate_buildpack_bump_pr.yml #45

	on:
	workflow_dispatch:
	schedule:
	- cron: "0 9 1 * *"

	permissions:
	contents: write

	env:
	GO_VERSION: "1.20"
	GIT_AUTHOR_NAME: github-actions
	GIT_AUTHOR_EMAIL: [email protected]

	jobs:
	generate-buildpack-bump-pr:
	runs-on: ubuntu-latest
	steps:
	## Setup
	- name: Checkout repo
	uses: actions/checkout@v2
	with:
	submodules: true

	- name: Install gettext
	run: \|
	sudo apt install gettext
	# for envsubst

	- name: "Install Go ${{env.GO_VERSION}}"
	uses: actions/setup-go@v2
	with:
	go-version: "${{env.GO_VERSION}}"

	- name: "Install yq"
	run: \|
	go install github.com/mikefarah/yq/v4@5ef537f3fd1a9437aa3ee44c32c6459a126efdc4 # v4.34.1

	- name: generate-buildpacks-yml
	run: \|
	./scripts/update_buildpacks.sh

	- name: Commit and push
	run: \|
	export NEW_BRANCH_NAME="auto-bump-buildpacks-$(date -u '+%Y%m%dT%H%M')"
	export GIT_COMMITTER_EMAIL=$GIT_AUTHOR_EMAIL
	export GIT_COMMITTER_NAME=$GIT_AUTHOR_NAME
	git checkout -b "$NEW_BRANCH_NAME"
	git add config/buildpacks.yml
	git add config/buildpacks.rolling.yml
	git commit -m 'bump buildpacks'
	git push origin "$NEW_BRANCH_NAME"
	echo "NEW_BRANCH_NAME=$NEW_BRANCH_NAME" >> $GITHUB_ENV

	- name: Create PR
	env:
	GITHUB_TOKEN: ${{ secrets.GOVUK_PAAS_UNPRIVILEGED_BOT_PAT }}
	run: \|
	FINAL_BODY=$(mktemp)
	envsubst < ./.github/workflows/automatic_buildpack_bump_pr_body.md > $FINAL_BODY

	gh pr create \
	--base main \
	--head "$NEW_BRANCH_NAME" \
	--title "Buildpack upgrades, $(date -u '+%B %Y')" \
	--body-file "$FINAL_BODY"

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