Synchronize Wiki #88

	name: Synchronize Wiki

	on:
	push:
	branches: [master]
	pull_request:
	schedule:
	# daily, 01:00 UTC
	- cron: "0 1 * * *"
	workflow_dispatch:
	# https://github.blog/changelog/2020-07-06-github-actions-manual-triggers-with-workflow_dispatch/

	jobs:
	synchronize:
	runs-on: ubuntu-latest
	permissions:
	contents: write
	steps:
	- uses: actions/checkout@v4
	with:
	fetch-depth: 0
	- name: Set git credentials
	run: \|
	git config user.name "github-actions[bot]"
	git config user.email "41898282+github-actions[bot]@users.noreply.github.com"
	- name: Fetch
	run: \|
	git remote add upstream ${{ github.server_url }}/${{ github.repository_owner }}/heaps.wiki
	git fetch upstream master
	- name: Merge
	run: \|
	git merge upstream/master --no-edit
	- name: Validate changes
	run: \|
	# exit with error if any dot files have been changed
	# this is to avoid security issues with public modifications to github workflow files
	git diff ${{ github.sha }} --exit-code -- ".*"
	- name: Push
	if: github.ref == 'refs/heads/master'
	run: \|
	git push

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