Bszabo/tnl 10766 gaps (#33001) #7

	# Rejects PR if requirements files are inconsistent.
	#
	# This will produce a failing check for any PR that does not produce a
	# clean run of `make compile-requirements` on Linux.

	name: Consistent Python dependencies

	on:
	pull_request:
	paths:
	- 'requirements/**'
	push:
	branches:
	- master
	paths:
	- 'requirements/**'

	defaults:
	run:
	shell: bash # strict bash

	jobs:
	check-requirements:
	name: Compile requirements
	runs-on: ubuntu-22.04

	steps:
	- uses: actions/checkout@v3

	- uses: actions/setup-python@v4
	with:
	python-version: '3.8'

	- run: \|
	make compile-requirements

	- name: Fail if compiling requirements caused changes
	run: \|
	SUMMARY_HELP=$(cat <<'EOMARKDOWN'
	# Inconsistent Python dependencies

	It appears that the Python dependencies in this PR are inconsistent: A re-run of
	`make compile-requirements` produced changes. This might mean that your PR would
	fail to deploy properly in production, or could have inconsistent behavior for
	developers.

	Please see the requirements README for information on how to resolve this:
	https://github.com/openedx/edx-platform/blob/master/requirements/README.rst#inconsistent-dependencies
	EOMARKDOWN
	)

	make_summary () {
	echo "$SUMMARY_HELP"
	echo
	echo "----"
	echo
	echo "Diff follows:"
	echo
	echo '```'
	git diff \|\| true
	echo '```'
	}

	git diff --quiet --exit-code \|\| {
	# Job Summaries are cool, but echo to the job log as well, because
	# that's where the PR checks will actually link to.
	make_summary \| tee -a $GITHUB_STEP_SUMMARY
	exit 1
	}

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