add script and action for monthly PR summary #6

	on:
	pull_request

	name: Blog report

	jobs:

	Monthly_PRs:
	if: github.event.pull_request.draft == false
	name: Blog draft
	runs-on: ubuntu-latest

	env:
	GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
	MATHLIB: leanprover-community/mathlib4

	steps:
	- name: cleanup
	run: \|
	find . -name . -o -prune -exec rm -rf -- {} +

	- uses: actions/checkout@v4
	with:
	path: blog

	- uses: actions/checkout@v4
	with:
	repository: leanprover-community/mathlib4
	fetch-depth: 0
	ref: master
	path: mathlib

	- name: blog report
	run: \|
	yrMth=2024-07
	mth="$(date -d "${yrMth}-01" '+%B')"
	PR="${{ github.event.pull_request.number }}"
	title="### ${mth} in Mathlib summary"

	#git checkout origin/adomani/yd_find_label monthly_summary.sh
	message="$(printf '%s\n\n%s\n' "${title}" "$(cd mathlib; ./../blog/monthly_summary.sh "${MATHLIB}" "${yrMth}")")"
	echo "${message}"
	baseUrl="https://github.com/${MATHLIB}/pull"
	message="$(echo "${message}" \|
	sed '
	/ [0-9]* PRs$/{
	s=^=</details><details><summary>\n=
	s=$=\n</summary>\n=
	}
	s=^PR #$[0-9]$= PR [#\1]('"${baseUrl}"'\1)=' \|
	sed -z '
	s=</details><details><summary>=<details><summary>=
	s=\n---\nReports\n\n=\n</details>\n\n---\n\n<details><summary>Reports</summary>\n\n=
	s=\n---[\n]*$=\n\n</details>\n&=
	')"
	echo "pwd"
	pwd
	echo "ls"
	ls
	#cd ..
	#echo ".. ls"
	#pwd
	ls
	sed -i 's=${GITHUB_REPOSITORY}=leanprover-community/blog=' mathlib/scripts/update_PR_comment.sh
	cat mathlib/scripts/update_PR_comment.sh
	./mathlib/scripts/update_PR_comment.sh "${message}" "${title}" "${PR}"

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