Updated export workflow to allow zero change pushes #2

	name: Submodule Export Branch

	on:
	push:
	branches:
	- main

	permissions:
	contents: write

	jobs:
	export:
	runs-on: ubuntu-latest

	steps:
	- name: Checkout main
	uses: actions/checkout@v6
	with:
	fetch-depth: 0

	- name: Configure git
	run: \|
	git config user.name "submodule-action"
	git config user.email "git@liamsherwin.com"

	- name: Set global variables
	run: \|
	REPO_NAME="${GITHUB_REPOSITORY##*/}"
	echo "REPO_NAME=$REPO_NAME" >> $GITHUB_ENV

	EXPORT_BRANCH="${REPO_NAME}-submodule"
	echo "EXPORT_BRANCH=$EXPORT_BRANCH" >> $GITHUB_ENV

	BLACKLIST=".github/submodule-blacklist.txt"
	echo "BLACKLIST=$BLACKLIST" >> $GITHUB_ENV

	- name: Create export branch
	run: \|
	git checkout -B "$EXPORT_BRANCH" origin/main

	- name: Apply blacklist
	run: \|
	if [ ! -f "$BLACKLIST" ]; then
	echo "Missing blacklist file: $BLACKLIST"
	exit 1
	fi

	echo "Removing blacklisted paths:"
	while IFS= read -r line \|\| [ -n "$line" ]; do
	[[ "$line" =~ ^#.*$ \|\| -z "$line" ]] && continue
	echo "Removing: $line"
	rm -rf $line
	done < "$BLACKLIST"

	- name: Commit Changes (if any)
	run: \|
	git add -A
	if git diff --cached --quiet; then
	echo "No changes to commit"
	else
	git commit -m "Submodule Export"
	fi

	- name: Push export branch
	run: \|
	git push --set-upstream origin "$EXPORT_BRANCH" --force

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