Sync Stable Branch with Slang Release #39

	name: Sync Stable Branch with Slang Release

	on:
	schedule:
	# Run at 3:00 AM UTC every day
	- cron: '0 3 * * *'
	workflow_dispatch: # Allow manual trigger

	jobs:
	sync-stable-branch:
	runs-on: ubuntu-latest
	permissions:
	contents: write
	steps:
	- name: Checkout main branch
	uses: actions/checkout@v4
	with:
	ref: main # Explicitly checkout main
	# Fetch all history for all branches and tags
	fetch-depth: 0
	# Get submodules, but don't update them yet
	submodules: 'recursive'

	- name: Set up Git
	run: \|
	git config --global user.name 'Read the Docs Bot'
	git config --global user.email '[email protected]'

	- name: Get latest slang release tag
	id: slang_latest_tag
	env:
	GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }} # Provide token explicitly for gh
	run: \|
	LATEST_TAG=$(gh release view --repo shader-slang/slang --json tagName --jq .tagName)
	if [ -z "$LATEST_TAG" ]; then
	echo "Failed to fetch latest slang release tag using gh"
	exit 1
	fi
	echo "tag=$LATEST_TAG" >> $GITHUB_OUTPUT
	echo "Fetched latest slang tag: $LATEST_TAG"

	- name: Update slang submodule to latest release tag
	run: \|
	pushd docs/external/slang
	git fetch --tags origin
	git checkout ${{ steps.slang_latest_tag.outputs.tag }}
	popd
	echo "Checked out tag ${{ steps.slang_latest_tag.outputs.tag }} in docs/external/slang"

	- name: Commit and push changes to stable branch
	run: \|
	git add docs/external/slang
	git commit -m "Sync stable to release (slang@${{ steps.slang_latest_tag.outputs.tag }})"
	git push origin HEAD:stable --force
	echo "Committed and force-pushed updates to stable branch."

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