name: Update iTerm2 colorschemes
on:
  schedule:
    # Once a week
    - cron: "0 0 * * 0"
  workflow_dispatch:
jobs:
  update-iterm2-schemes:
    if: github.repository == 'ghostty-org/ghostty'
    runs-on: namespace-profile-ghostty-sm
    permissions:
      # Needed for create-pull-request action
      contents: write
      pull-requests: write
    env:
      ZIG_LOCAL_CACHE_DIR: /zig/local-cache
      ZIG_GLOBAL_CACHE_DIR: /zig/global-cache
    steps:
      - name: Checkout code
        uses: actions/checkout@11bd71901bbe5b1630ceea73d27597364c9af683 # v4.2.2
        with:
          fetch-depth: 0

      - name: Setup Cache
        uses: namespacelabs/nscloud-cache-action@449c929cd5138e6607e7e78458e88cc476e76f89 # v1.2.8
        with:
          path: |
            /nix
            /zig

      - name: Setup Nix
        uses: cachix/install-nix-action@f0fe604f8a612776892427721526b4c7cfb23aba # v31.4.1
        with:
          nix_path: nixpkgs=channel:nixos-unstable
      - uses: cachix/cachix-action@0fc020193b5a1fa3ac4575aa3a7d3aa6a35435ad # v16
        with:
          name: ghostty
          authToken: "${{ secrets.CACHIX_AUTH_TOKEN }}"

      - name: Run zig fetch
        id: zig_fetch
        run: |
          UPSTREAM_REV="$(curl "https://api.github.com/repos/mbadolato/iTerm2-Color-Schemes/commits/master" | jq -r '.sha')"
          nix develop -c zig fetch --save="iterm2_themes" "https://github.com/mbadolato/iTerm2-Color-Schemes/archive/$UPSTREAM_REV.tar.gz"
          echo "upstream_rev=$UPSTREAM_REV" >> "$GITHUB_OUTPUT"

      - name: Update zig cache hash
        run: |
          # Only proceed if build.zig.zon has changed
          if ! git diff --exit-code build.zig.zon; then
            nix develop -c ./nix/build-support/check-zig-cache.sh --update
            nix develop -c ./nix/build-support/check-zig-cache.sh
            nix develop -c ./flatpak/build-support/check-zig-cache.sh --update
            nix develop -c ./flatpak/build-support/check-zig-cache.sh
          fi

      # Verify the build still works. We choose an arbitrary build type
      # as a canary instead of testing all build types.
      - name: Test Build
        run: nix build .#ghostty

      - name: Create pull request
        uses: peter-evans/create-pull-request@271a8d0340265f705b14b6d32b9829c1cb33d45e # v7.0.8
        with:
          title: Update iTerm2 colorschemes
          base: main
          branch: iterm2_colors_action
          commit-message: "deps: Update iTerm2 color schemes"
          add-paths: |
            build.zig.zon
            build.zig.zon.nix
            build.zig.zon.txt
            build.zig.zon.json
            flatpak/zig-packages.json
          body: |
            Upstream revision: https://github.com/mbadolato/iTerm2-Color-Schemes/tree/${{ steps.zig_fetch.outputs.upstream_rev }}
          labels: dependencies