Update spack_cpu_build.yaml to not checkout in base image stage #463

	name: PNNL Mirror

	# triggers a github action everytime there is a push or mr
	on:
	pull_request:
	push:
	branches:
	- develop
	- main

	jobs:
	# To test on HPC resources we must first mirror the repo and then trigger a pipeline
	push:
	# Latest Ubuntu as of Feb 2023 is 20.04
	runs-on: ubuntu-22.04
	steps:
	# Action checks-out your repository under $GITHUB_WORKSPACE, so your workflow can access it.
	- uses: actions/checkout@v1

	# Necessary to get branch name independent of PR/push
	- name: Extract branch name
	shell: bash
	run: echo "branch=${GITHUB_HEAD_REF:-${GITHUB_REF#refs/heads/}}" >> $GITHUB_OUTPUT
	id: extract_branch

	# Action for mirroring your commits to a different remote repository
	- uses: yesolutions/mirror-action@master
	# Give actions access to some secrets
	with:
	GIT_PUSH_ARGS: '--tags --force --push-option=ci.skip'
	REMOTE: 'https://gitlab.pnnl.gov/earthshot-exago/exago-github-mirror'
	GIT_USERNAME: ${{ secrets.GIT_USER }}
	GIT_PASSWORD: ${{ secrets.GIT_PASSWORD }}

	# Trigger CI pipeline since it was skipped in the above push
	- name: Trigger Pipeline
	run: curl -X POST -F token=${{ secrets.PNNL_PIPELINE_TRIGGER }} -F ref=${{ steps.extract_branch.outputs.branch }} https://gitlab.pnnl.gov/api/v4/projects/1719/trigger/pipeline

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