name: Clobber Stable

# This action implements the
# [Clobbering](https://github.com/pezkuwichain/pezkuwi-sdk/blob/master/docs/RELEASE.md#clobbering)
# process from the release process. It pushes a new commit to the `stable` branch with all the
# current content of the `audited` tag. It does not use a merge commit, but rather 'clobbers' the
# branch with a single commit that contains all the changes. It has a naming scheme of `Clobber with
# audited ($COMMIT)`.  
# Currently, the script is only triggered manually, but can be easily changed to a schedule.

on:
  workflow_dispatch:

permissions:
    contents: write

jobs:
  clobber-stable:
    runs-on: ubuntu-latest
    timeout-minutes: 5
    env:
        STABLE: stable
        UNSTABLE: master
        AUDITED: audited
    steps:
    - name: Checkout
      uses: actions/checkout@08c6903cd8c0fde910a37f88322edcfb5dd907a8 # v4.1.7
    
    - name: Prechecks
      run: |
        # Properly fetch
        git fetch --prune --unshallow origin tag $AUDITED
        git fetch origin $STABLE

        # Sanity checks
        git checkout -q tags/$AUDITED || (echo "Could not find the '$AUDITED' tag." && exit 1)
        COMMIT=$(git rev-parse tags/$AUDITED)
        #$(git branch --contains $COMMIT | grep -q $UNSTABLE) || (echo "The '$AUDITED' tag is not on the '$UNSTABLE' branch." && exit 1)

        git config --global user.email "admin@pezkuwichain.io"
        git config --global user.name "Kurdistan-Tech Release Team"

    - name: Prepare commit
      run: |
        git checkout --quiet origin/$STABLE

        # Delete all tracked files in the working directory
        git ls-files -z | xargs -0 rm -f

        # Find and delete any empty directories
        find . -type d -empty -delete

        git add . 1>/dev/null 2>/dev/null
        git commit -qm "Delete all files"

        # Grab the files from the commit
        git checkout --quiet tags/$AUDITED -- .

        # Stage, commit, and push the working directory which now matches 'audited' 1:1
        git status
        COMMIT=$(git rev-parse --short=10 tags/$AUDITED)
        git add . 1>/dev/null 2>/dev/null
        git commit --allow-empty --amend -qm "Clobber with $AUDITED ($COMMIT)"
        
    - name: Push stable branch
      env:
        GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
      run: |
        git log -3
        git push --verbose origin HEAD:$STABLE