Update all submodules #96

	# This is a basic workflow to help you get started with Actions

	name: Update all submodules

	on:
	schedule:
	- cron: '0 0 * * 0'
	workflow_dispatch:

	# A workflow run is made up of one or more jobs that can run sequentially or in parallel
	jobs:
	# This workflow contains a single job called "build"
	update:
	# The type of runner that the job will run on
	runs-on: ubuntu-latest

	# Steps represent a sequence of tasks that will be executed as part of the job
	steps:
	# Checks-out your repository under $GITHUB_WORKSPACE, so your job can access it
	- uses: actions/checkout@v3
	with:
	submodules: true

	# Runs a single command using the runners shell
	- name: Fetch all submodules
	run: git submodule foreach -q 'BRANCH=$(git config -f $toplevel/.gitmodules submodule.$name.branch); git checkout $BRANCH; git reset --hard; git pull origin $BRANCH'

	- name: Commit & push changes
	run: \|
	git config --global user.name ${{ secrets.USER_NAME }}
	git config --global user.email ${{ secrets.USER_EMAIL }}
	git diff --quiet && git diff --staged --quiet \|\| git commit -am "Updated submodules" && git push

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