(3) Check News.md for Compliance - - 41/merge #42

	# All PRs into main MUST be deliberately labelled in the NEWS.md with a succint but informative entry
	# describing the changes made - this workflow checks to make sure that this has been done.

	name: Check NEWS.md Update
	run-name: (3) Check News.md for Compliance - ${{ github.event.head_commit.message }} - ${{ github.ref_name }}

	on:
	pull_request:
	branches:
	- main

	jobs:
	check-news-md-modification:
	runs-on: ubuntu-latest

	steps:
	- name: Checkout code
	uses: actions/checkout@v2
	with:
	fetch-depth: 0 # Fetch all history for all tags and branches

	- name: Check for NEWS.md changes
	run: \|
	echo "Current SHA: $GITHUB_SHA"
	echo "Base SHA: ${{ github.event.pull_request.base.sha }}"

	git fetch origin ${{ github.event.pull_request.base.ref }}

	CHANGED_FILES=$(git diff --name-only $GITHUB_SHA $(git merge-base $GITHUB_SHA origin/${{ github.event.pull_request.base.ref }}))
	echo "Changed files:"
	echo "$CHANGED_FILES"

	if echo "$CHANGED_FILES" \| grep -q "NEWS.md"; then
	echo "NEWS.md has been modified."
	else
	echo "::error file=NEWS.md,line=1,col=5::NEWS.md must be updated with each PR." >&2
	exit 1
	fi
	shell: /usr/bin/bash -e {0}

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