Nightly Release #89

	name: Nightly Release

	on:
	workflow_dispatch:
	schedule:
	- cron: "0 2 * * *" # release nightly at 2AM

	permissions:
	contents: read

	jobs:
	nightly-release:
	name: Nightly Release
	runs-on: ubuntu-latest

	steps:
	- uses: actions/create-github-app-token@67018539274d69449ef7c02e8e71183d1719ab42 # v2.1.4
	id: otelbot-token
	with:
	app-id: ${{ vars.OTELBOT_COLLECTOR_RELEASES_APP_ID }}
	private-key: ${{ secrets.OTELBOT_COLLECTOR_RELEASES_PRIVATE_KEY }}
	permission-contents: write

	- uses: actions/checkout@08c6903cd8c0fde910a37f88322edcfb5dd907a8 # v5.0.0
	with:
	fetch-depth: 0
	token: ${{ steps.otelbot-token.outputs.token }}

	- name: 'Push new tag'
	run: \|
	git config --global user.name "otelbot"
	git config --global user.email "197425009+otelbot@users.noreply.github.com"

	# A previous release was created using a lightweight tag
	# git describe by default includes only annotated tags
	# git describe --tags includes lightweight tags as well
	DESCRIBE=`git tag -l --sort=-v:refname \| grep -v cmd \| grep -v nightly \| head -n 1` # list tags except the ones containing cmd or nightly and then take the latest one
	MAJOR_VERSION=`echo $DESCRIBE \| awk '{split($0,a,"."); print a[1]}'` # take just the major version digits, e.g. "v0"
	MINOR_VERSION=`echo $DESCRIBE \| awk '{split($0,a,"."); print a[2]}'` # take just the minor version digits, e.g. "130"
	MINOR_VERSION="$((${MINOR_VERSION} + 1))" # bump minor version
	TAG="${MAJOR_VERSION}.${MINOR_VERSION}.0-nightly.$(date +'%Y%m%d%H%M')"
	git tag -a $TAG -m "$TAG: nightly build"
	git push origin $TAG

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