Bundle.yml

name: Bundle Web Assets

on:
    push:
        branches:
            - main
    workflow_dispatch:
    pull_request:
        paths-ignore:
            - "**.md"
            - "**.jl"
        branches-ignore:
            - release

concurrency:
    group: bundle-${{ github.ref }}
    cancel-in-progress: false

jobs:
    trigger:
        runs-on: ubuntu-latest
        timeout-minutes: 20
        steps:
            - uses: actions/checkout@v4
              # We use that PAT token instead of GITHUB_TOKEN because we are triggering another github action on the 'release' event.
              # Triggering a workflow from a workflow is only allowed if the relaying event is signed with a PAT.
              # See https://docs.github.com/en/actions/reference/events-that-trigger-workflows#triggering-new-workflows-using-a-personal-access-token
              with:
                token: ${{ secrets.PAT_TOKEN }}
              if: github.event_name != 'pull_request'
              
            - uses: fregante/setup-git-user@v1
              if: github.event_name != 'pull_request'
              
            # Ignore the build changes from previous run.
            # This "just" hard resets to the latest commit on main.
            # The previous bundle commit will still exist, but will be "dangling", unless we made a tag for it.
            # Github will eventually clean dangling commits, which is fine because again, the ones with a tag will stay around.
            - name: Make Sure Release Is Reset To Main
              if: github.event_name != 'pull_request'
              run: |
                  git checkout -b release
                  git reset --hard $GITHUB_SHA

            # if this is a PR. then just checkout without fanciness
            - uses: actions/checkout@v4
              if: github.event_name == 'pull_request'

            # Do the actual bundling
            - uses: actions/setup-node@v4
              with:
                  node-version: 22.x
                  cache: "npm"
                  cache-dependency-path: frontend-bundler/package-lock.json

            - run: npm install
              working-directory: frontend-bundler
            
            - name: The Actual Build (try 3 times)
              working-directory: frontend-bundler
              run: |
                (npm run build) || (npm run build) || (npm run build)
                                
            - name: List generated files
              working-directory: frontend-dist
              run: |
                ls -lha

            - name: Check for corrupt files
              working-directory: frontend-dist
              run: |
                if [[ $(find . -empty) ]]; then
                    exit 1
                fi

            # Push the rebuild frontend-dist to the release branch.
            # Needs to be `add --force` because frontend-dist is normally gitignored.
            # Also needs `push --force` because we reset to main (which doesn't contain the previous frontend-dist)
            - name: Force push frontend-dist changes
              if: github.event_name != 'pull_request'
              run: |
                  git add frontend-dist --force
                  git commit -m "$GITHUB_WORKFLOW" -m "Built from hash $GITHUB_SHA"
                  git push origin release --force