Rebase reminder #57

	name: Rebase reminder
	on: [pull_request, pull_request_review]

	jobs:
	build:
	name: rebuild-reminder
	runs-on: ubuntu-latest

	steps:
	- uses: actions/checkout@v3
	with:
	fetch-depth: 0
	- name: Find behind count
	id: behind_count
	run: \|
	echo "behind_count=$(git rev-list --count ${{ github.event.pull_request.head.sha }}..${{ github.event.pull_request.base.sha }})" >> $GITHUB_OUTPUT
	- name: Find ahead count
	id: ahead_count
	run: \|
	echo "ahead_count=$(git rev-list --count ${{ github.event.pull_request.base.sha }}..${{ github.event.pull_request.head.sha }})" >> $GITHUB_OUTPUT
	- name: Find combined count
	id: combined_count
	run: \|
	echo "combined_count=$(expr ${{steps.behind_count.outputs.behind_count}} + ${{steps.ahead_count.outputs.ahead_count}})" >> $GITHUB_OUTPUT
	- name: Edit PR comment - rebasing
	if: steps.behind_count.outputs.behind_count > 0 && steps.combined_count.outputs.combined_count > 3
	uses: thollander/actions-comment-pull-request@v1
	with:
	message: \|
	Needs rebasing :bangbang:
	behind_count is ${{ steps.behind_count.outputs.behind_count }}
	ahead_count is ${{ steps.ahead_count.outputs.ahead_count }}
	comment_includes: 'rebasing'
	- name: Edit PR comment - no rebasing
	if: steps.behind_count.outputs.behind_count == 0 \|\| steps.combined_count.outputs.combined_count <= 3
	uses: thollander/actions-comment-pull-request@v1
	with:
	message: \|
	No need for rebasing :+1:
	behind_count is ${{ steps.behind_count.outputs.behind_count }}
	ahead_count is ${{ steps.ahead_count.outputs.ahead_count }}
	comment_includes: 'rebasing'

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