Add option to preserve file attributes #500

	name: Calculate test coverage (on manual retry only)

	on:
	pull_request:
	branches: [ main ]

	jobs:

	coverage:
	runs-on: ubuntu-latest
	if: github.run_attempt > 1
	steps:

	- uses: actions/checkout@c85c95e3d7251135ab7dc9ce3241c5835cc595a9

	- name: Set up Go
	uses: actions/setup-go@93397bea11091df50f3d7e59dc26a7711a8bcfbe
	with:
	go-version: '1.21'

	- name: Generate coverage comment
	id: gen_report
	run: \|
	make test_coverage_html
	make test_coverage > report.txt
	content="$(cat report.txt)"
	content="${content//'%'/'%25'}"
	content="${content//$'\n'/'%0A'}"
	content="${content//$'\r'/'%0D'}"
	echo "::set-output name=content::$content"

	- name: Upload preview report to action run
	uses: actions/upload-artifact@a8a3f3ad30e3422c9c7b888a15615d19a852ae32 # v3.1.3
	with:
	name: test-coverage
	path: coverage.html

	- name: Write test coverage into PR comment
	uses: actions/github-script@d7906e4ad0b1822421a7e6a35d5ca353c962f410 # v6.4.1
	with:
	script: \|
	github.rest.issues.createComment({
	issue_number: context.issue.number,
	owner: context.repo.owner,
	repo: context.repo.repo,
	body: `[Test coverage report generated](https://github.com/hashicorp/go-extract/actions/runs/${{ github.run_id }}) ✍
	\`\`\`
	${process.env.CONTENT}
	\`\`\``
	})
	env:
	CONTENT: "${{ steps.gen_report.outputs.content }}"

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