Generate tiles #279

	name: Generate tiles

	on:
	workflow_dispatch:
	schedule:
	- cron: "0 0 * * *" # every day at midnight

	jobs:
	build:
	runs-on: ubuntu-latest
	steps:
	- uses: actions/checkout@v3

	- name: set up Homebrew
	id: set-up-homebrew
	uses: Homebrew/actions/setup-homebrew@master

	- name: install tippecanoe
	run: brew install tippecanoe

	- name: run python download script
	run: python3 download.py

	- name: run the generate shell file
	run: ./generate_tiles.sh

	- name: check for changes
	run: git status

	- name: commit changed files
	run: \|
	git config --local user.email "[email protected]"
	git config --local user.name "GitHub Action"
	git add .
	git diff-index --quiet HEAD \|\| git commit -m "Update source data"

	- name: Deploy tiles into a gh pages branch
	run: \|
	git remote set-url origin https://git:${GITHUB_TOKEN}@github.com/${GITHUB_REPOSITORY}.git
	npx gh-pages -d tiles -u "github-actions-bot <[email protected]>" --cname tiles.mobilelibraries.org --no-history
	env:
	GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
	CACHE_DIR: cache

	- name: fetch from main
	run: git fetch --no-tags --prune --depth=1 origin +refs/heads/:refs/remotes/origin/

	- name: push code to main
	run: git push origin HEAD:main

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