update-submodules.yml

name: Update Library Submodules

on:
  workflow_dispatch:
    inputs:
      branch:
        description: 'Target branch for raising PR'
        required: true
        default: main
      allowed:
        description: 'Optional regex pattern passed to `grep` to update only the specified library submodules, e.g. "jobs" updates only libraries with "jobs" in the name.'
        required: false
        default: .*

jobs:
  update-submodules:
    name: Update submodules
    runs-on: ubuntu-latest
    steps:
      - name: Checkout code
        uses: actions/checkout@v2
        with:
          submodules: true
      - name: Configure Git identity
        run: |
          git config --global user.name "Submodule Updater"
      - name: Update the submodules
        env:
          ALLOWED: ${{ github.event.inputs.allowed }}
        run: |
          libs=$(find libraries/standard libraries/aws -maxdepth 1 -mindepth 1 | grep "$ALLOWED")
          git submodule update --remote $libs
      - name: Commit changes and Push to remote
        run: |
          now="$(date +'%d-%m-%Y')"
          branch="updater-job/submodules-$now"
          git checkout -b $branch
          git commit -am 'Updating library submodules to the latest.'
          git push --set-upstream origin $branch
      - name: Raise a Pull-Request
        env:
          GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
          BRANCH: ${{ github.event.inputs.branch }}
        run: |
          gh pr create --base "$BRANCH" --title 'Update library submodules to the latest' --body 'Update library submodules to the latest'