Check changes and sync #202

	name: "Check changes and sync"
	on:
	workflow_dispatch:
	schedule:
	- cron: 0 5 * * *

	jobs:
	check-and-sync:
	runs-on: ubuntu-20.04
	outputs:
	all: ${{ steps.changes.outputs.all}}
	c: ${{ steps.changes.outputs.c }}
	steps:
	- name: checkout tree-sitter-scala
	uses: actions/checkout@v3
	with:
	fetch-depth: 10

	- name: Generate parser from scratch
	run: \|
	npm install
	npm run build

	- name: Format Javascipt
	run: \|
	npm install
	npm run format

	- name: Check for changes
	uses: tj-actions/verify-changed-files@v13
	id: verify-changed-files
	with:
	files: \|
	grammar.js
	src/grammar.json
	src/node-types.json
	src/parser.c
	src/tree_sitter/parser.h

	- name: Commit changes if necessary
	if: steps.verify-changed-files.outputs.files_changed == 'true'
	run: \|
	git config user.name "GitHub"
	git config user.email "[email protected]"
	git add .
	LAST_COMMIT=$(git log --format="%H" -n 1)
	git commit -m "chore: generate and sync from $LAST_COMMIT"
	git clean -xf

	- name: Create Pull Request
	if: steps.verify-changed-files.outputs.files_changed == 'true'
	uses: peter-evans/create-pull-request@v4
	with:
	title: "chore: generate and sync latest changes"
	branch: generation
	base: ${{ github.head_ref }}

	- name: No changes detected
	if: steps.verify-changed-files.outputs.files_changed == 'false'
	run: echo "No changes detected"

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