metal-bake.yml

name: Metal SRAM Bake
run-name: ${{ github.workflow }} #${{ github.sha }} on ${{ github.ref_name }}

# Trigger on pushes to master when relevant files change
on:
  push:
    branches: ["master"]
    paths:
      - "**.guard"
      - "src/**"
      - ".github/workflows/metal-bake.yml"
      - "flux_sram_bake.py"
      - "binarize_logic.py"

# Required permission to push changes back to the repository
permissions:
  contents: write

jobs:
  sram-bake:
    runs-on: ubuntu-latest
    steps:
      - name: Checkout full repository history
        uses: actions/checkout@v4
        with:
          fetch-depth: 0 # Needed for git commit/push operations

      - name: Set up Python 3.10 with pip caching
        uses: actions/setup-python@v5
        with:
          python-version: "3.10"
          cache: "pip"

      - name: Install base dependencies
        run: |
          python -m pip install --upgrade pip
          # Add additional PyPI packages here if needed for your use case
        shell: bash

      - name: Generate SRAM output files
        run: python flux_sram_bake.py
        env:
          PYTHONUNBUFFERED: 1 # Stream logs immediately to GitHub Actions
          LOG_LEVEL: INFO

      - name: Check for generated file changes
        id: check-changes
        run: |
          # Exit 0 if no changes, non-zero if changes exist
          git diff --exit-code flux-hardware/hdc/flux_kb.sram flux-hardware/hdc/flux_kb.h flux-hardware/hdc/flux_kb.json
          echo "files_changed=$?" >> "$GITHUB_OUTPUT"
        shell: bash

      - name: Commit and push updated SRAM files
        if: steps.check-changes.outputs.files_changed != 0
        run: |
          # Configure git identity for automated commits
          git config --global user.name "GitHub Actions Bot"
          git config --global user.email "actions@github.com"

          # Stage only our generated output files
          git add flux-hardware/hdc/flux_kb.sram flux-hardware/hdc/flux_kb.h flux-hardware/hdc/flux_kb.json

          # Commit with [skip ci] to avoid infinite workflow loops
          git commit -m "chore: regenerate SRAM images [skip ci]"

          # Push changes back to master branch
          git push origin master
        shell: bash