TeamCity: Create empty branch off tip of main to aid nightly-testing #35

	name: "TeamCity: Create empty branch off tip of main to aid nightly-testing"


	# To ensure nightly tests/builds run on the same commit, we checkout and create a new branch from main for TeamCity to run builds on

	on:
	workflow_call:
	workflow_dispatch:
	inputs:
	dayThreshold:
	default: '3'
	schedule:
	- cron: '0 3 * * *' # 3AM UTC (-7)-> 8PM PST # teamcity builds are triggered @ 4AM UTC

	jobs:
	nightly-test-branch-creation:
	runs-on: ubuntu-latest
	steps:
	- uses: actions/github-script@e69ef5462fd455e02edcaf4dd7708eda96b9eda0 # v7.0.0
	with:
	retries: 3
	retry-exempt-status-codes: 400, 401, 403, 404, 422
	script: \|
	let dateToday = new Date().toJSON().slice(0, 10);

	const mainRef = await github.rest.git.getRef({
	owner: context.repo.owner,
	repo: context.repo.repo,
	ref: "heads/main"
	})
	const branchName = "UTC-" + dateToday;
	const commitHash = mainRef.data.object.sha;
	try{
	await github.rest.git.createRef({
	owner: context.repo.owner,
	repo: context.repo.repo,
	ref: "refs/heads/" + branchName,
	sha: commitHash
	})
	} catch (error){
	core.setFailed(error + "- Failed to create new branch to be used running tonight\'s tests; branch with name " + branchName + " already exists")
	}
	console.log("Created Branch: " + branchName + " using commit " + commitHash + " from main.")

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