ci.yml

name: CI

on:
  push:
    branches:
      - main
  pull_request:
  workflow_dispatch:
    inputs:
      flatpak_runtime_smoke:
        description: Run the experimental Flatpak PipeWire routing smoke test
        type: boolean
        default: false
      smoke_only:
        description: Skip ordinary CI work and run only the requested experimental smoke job
        type: boolean
        default: false
      flatpak_runtime_build:
        description: Build and reinstall the local Flatpak before the runtime smoke test
        type: boolean
        default: true
      flatpak_runtime_install_remote:
        description: Install the smoke target from Flathub instead of using a local build
        type: boolean
        default: false
      flatpak_runtime_app_ref:
        description: Optional Flatpak app ref to run; blank infers the build or install ref
        type: string
        default: ""
      flatpak_runtime_install_ref:
        description: Flathub ref to install when flatpak_runtime_install_remote is enabled
        type: string
        default: io.github.bhack.mini-eq
      flatpak_runtime_expected_version:
        description: Optional installed Flatpak version expected by the runtime smoke test
        type: string
        default: ""

permissions:
  contents: read
  pull-requests: read

concurrency:
  group: ${{ github.workflow }}-${{ github.event_name }}-${{ github.event.pull_request.number || github.ref }}
  cancel-in-progress: true

jobs:
  changes:
    runs-on: ubuntu-24.04

    outputs:
      flatpak: ${{ steps.filter.outputs.flatpak }}
      test: ${{ steps.filter.outputs.test }}
      tooling: ${{ steps.filter.outputs.tooling }}
      pwg: ${{ steps.filter.outputs.pwg }}

    steps:
      - name: Detect changed files
        id: filter
        env:
          BEFORE: ${{ github.event.before }}
          GH_TOKEN: ${{ github.token }}
          PR_NUMBER: ${{ github.event.pull_request.number }}
          SMOKE_ONLY: ${{ inputs.smoke_only }}
        run: |
          set -euo pipefail

          files="$(mktemp)"

          set_all() {
            {
              echo "test=true"
              echo "tooling=true"
              echo "pwg=true"
              echo "flatpak=true"
            } >> "$GITHUB_OUTPUT"
          }

          case "$GITHUB_EVENT_NAME" in
            workflow_dispatch)
              if [[ "${SMOKE_ONLY:-false}" == "true" ]]; then
                {
                  echo "test=false"
                  echo "tooling=false"
                  echo "pwg=false"
                  echo "flatpak=false"
                } >> "$GITHUB_OUTPUT"
                exit 0
              fi
              set_all
              exit 0
              ;;
            pull_request)
              gh api --paginate "repos/$GITHUB_REPOSITORY/pulls/$PR_NUMBER/files" --jq '.[].filename' > "$files"
              ;;
            push)
              if [[ -z "${BEFORE:-}" || "$BEFORE" =~ ^0+$ ]]; then
                set_all
                exit 0
              fi
              gh api "repos/$GITHUB_REPOSITORY/compare/$BEFORE...$GITHUB_SHA" --jq '.files[].filename' > "$files"
              ;;
            *)
              set_all
              exit 0
              ;;
          esac

          test=false
          tooling=false
          pwg=false
          flatpak=false

          while IFS= read -r path; do
            case "$path" in
              .github/workflows/ci.yml)
                test=true
                tooling=true
                pwg=true
                flatpak=true
                ;;
              README.md|pyproject.toml|MANIFEST.in|src/*|tests/*|data/*|extensions/*)
                test=true
                ;;
              tools/check_gnome_shell_extension.py|tools/pack_gnome_shell_extension.sh)
                test=true
                ;;
            esac

            case "$path" in
              tools/*)
                tooling=true
                ;;
            esac

            case "$path" in
              .github/workflows/ci.yml|tools/check_pipewire_gobject.py|src/mini_eq/pipewire_backend.py|src/mini_eq/analyzer.py)
                pwg=true
                ;;
            esac

            case "$path" in
              .github/workflows/ci.yml|io.github.bhack.mini-eq.yaml|python3-dependencies.yaml|flatpak/*|src/*|data/*|pyproject.toml|MANIFEST.in|tools/check_pipewire_gobject.py)
                flatpak=true
                ;;
            esac
          done < "$files"

          {
            echo "test=$test"
            echo "tooling=$tooling"
            echo "pwg=$pwg"
            echo "flatpak=$flatpak"
          } >> "$GITHUB_OUTPUT"

          {
            echo "### CI scope"
            echo
            echo "- test: \`$test\`"
            echo "- tooling: \`$tooling\`"
            echo "- pipewire-gobject: \`$pwg\`"
            echo "- flatpak: \`$flatpak\`"
          } >> "$GITHUB_STEP_SUMMARY"

  tooling:
    needs: changes
    if: ${{ always() && !(github.event_name == 'workflow_dispatch' && inputs.smoke_only) }}
    runs-on: ubuntu-24.04

    steps:
      - name: Require change detection
        if: ${{ needs.changes.result != 'success' }}
        run: exit 1

      - name: Skip unchanged scope
        if: ${{ needs.changes.outputs.tooling != 'true' }}
        run: echo "No maintainer-tooling changes detected; skipping tooling job work."

      - name: Check out repository
        if: ${{ needs.changes.outputs.tooling == 'true' }}
        uses: actions/checkout@v6

      - name: Install Python tooling
        if: ${{ needs.changes.outputs.tooling == 'true' }}
        run: |
          python3 -m venv .venv
          .venv/bin/python -m pip install --upgrade pip
          .venv/bin/python -m pip install ruff

      - name: Lint
        if: ${{ needs.changes.outputs.tooling == 'true' }}
        run: .venv/bin/python -m ruff check .

      - name: Check formatting
        if: ${{ needs.changes.outputs.tooling == 'true' }}
        run: .venv/bin/python -m ruff format --check .

  test:
    needs: changes
    if: ${{ always() && !(github.event_name == 'workflow_dispatch' && inputs.smoke_only) }}
    runs-on: ubuntu-24.04

    steps:
      - name: Require change detection
        if: ${{ needs.changes.result != 'success' }}
        run: exit 1

      - name: Skip unchanged scope
        if: ${{ needs.changes.outputs.test != 'true' }}
        run: echo "No Python/package changes detected; skipping test job work."

      - name: Check out repository
        if: ${{ needs.changes.outputs.test == 'true' }}
        uses: actions/checkout@v6

      - name: Install system dependencies
        if: ${{ needs.changes.outputs.test == 'true' }}
        run: |
          sudo apt-get update
          sudo apt-get install -y \
            gir1.2-adw-1 \
            gir1.2-gtk-4.0 \
            gobject-introspection \
            libgirepository1.0-dev \
            libglib2.0-dev \
            libpipewire-0.3-dev \
            meson \
            ninja-build \
            pipewire \
            python3-cairo \
            python3-dev \
            python3-gi \
            python3-pip \
            python3-setuptools \
            python3-venv \
            wireplumber

      - name: Install Python dependencies
        if: ${{ needs.changes.outputs.test == 'true' }}
        run: |
          python3 -m venv /tmp/mini-eq-pwg-build
          /tmp/mini-eq-pwg-build/bin/python -m pip install --upgrade pip
          /tmp/mini-eq-pwg-build/bin/python -m pip wheel 'pipewire-gobject>=0.3.4,<0.4' -w /tmp/mini-eq-wheelhouse

          python3 -m venv --system-site-packages .venv
          .venv/bin/python -m pip install --upgrade pip
          .venv/bin/python -m pip install --no-index --find-links /tmp/mini-eq-wheelhouse 'pipewire-gobject>=0.3.4,<0.4'
          .venv/bin/python -m pip install -e '.[dev]'

      - name: Lint
        if: ${{ needs.changes.outputs.test == 'true' }}
        run: .venv/bin/python -m ruff check .

      - name: Check formatting
        if: ${{ needs.changes.outputs.test == 'true' }}
        run: .venv/bin/python -m ruff format --check .

      - name: Test
        if: ${{ needs.changes.outputs.test == 'true' }}
        run: .venv/bin/python -m pytest -q

      - name: Build package
        if: ${{ needs.changes.outputs.test == 'true' }}
        run: .venv/bin/python -m build

      - name: Check package metadata
        if: ${{ needs.changes.outputs.test == 'true' }}
        run: .venv/bin/python -m twine check dist/*

      - name: Smoke-test wheel CLI
        if: ${{ needs.changes.outputs.test == 'true' }}
        run: |
          python3 -m venv --system-site-packages /tmp/mini-eq-wheel-test
          /tmp/mini-eq-wheel-test/bin/python -m pip install --upgrade pip
          /tmp/mini-eq-wheel-test/bin/python -m pip install --no-index --find-links /tmp/mini-eq-wheelhouse 'pipewire-gobject>=0.3.4,<0.4'
          /tmp/mini-eq-wheel-test/bin/python -m pip install dist/mini_eq-*.whl
          /tmp/mini-eq-wheel-test/bin/mini-eq --help

      - name: Upload package artifacts
        if: ${{ needs.changes.outputs.test == 'true' }}
        uses: actions/upload-artifact@v7
        with:
          name: mini-eq-dist
          path: dist/*
          if-no-files-found: error

  flatpak-build:
    needs: changes
    if: ${{ always() && !(github.event_name == 'workflow_dispatch' && inputs.smoke_only) && needs.changes.result == 'success' && needs.changes.outputs.flatpak == 'true' }}
    runs-on: ubuntu-24.04
    timeout-minutes: 60
    container:
      image: ghcr.io/flathub-infra/flatpak-github-actions:gnome-50@sha256:9d3a99bef793cf99f55b0106130e68a781fd0815c8d2954f26e1ac9253b19e57
      options: --privileged

    steps:
      - name: Check out repository
        uses: actions/checkout@v6

      - name: Configure Flathub remote
        run: |
          flatpak remote-add --if-not-exists flathub https://flathub.org/repo/flathub.flatpakrepo
          flatpak --user remote-add --if-not-exists flathub https://flathub.org/repo/flathub.flatpakrepo

      - name: Build Flatpak
        uses: flatpak/flatpak-github-actions/flatpak-builder@401fe28a8384095fc1531b9d320b292f0ee45adb
        with:
          bundle: mini-eq.flatpak
          manifest-path: io.github.bhack.mini-eq.yaml
          upload-artifact: false

      - name: Install built Flatpak
        run: flatpak --user install -y ./mini-eq.flatpak

      - name: Smoke-test Flatpak CLI
        run: flatpak run io.github.bhack.mini-eq --help

      - name: Check pipewire-gobject GI compatibility
        run: |
          flatpak run --filesystem="$PWD":ro --command=python3 io.github.bhack.mini-eq \
            "$PWD/tools/check_pipewire_gobject.py" --expect-version 0.3.4

      - name: Smoke-test Flatpak runtime modules
        run: |
          flatpak run --command=python3 io.github.bhack.mini-eq - <<'PY'
          from pathlib import Path

          required_files = [
              "/app/lib/pipewire-0.3/libpipewire-module-filter-chain.so",
              "/app/lib/spa-0.2/filter-graph/libspa-filter-graph.so",
              "/app/lib/spa-0.2/filter-graph/libspa-filter-graph-plugin-builtin.so",
          ]

          missing = [path for path in required_files if not Path(path).exists()]
          if missing:
              raise SystemExit(f"missing Flatpak runtime file(s): {', '.join(missing)}")
          PY

          flatpak run --command=python3 io.github.bhack.mini-eq - <<'PY'
          from pathlib import Path

          required_license_files = [
              "/app/share/licenses/io.github.bhack.mini-eq/mini-eq/LICENSE",
              "/app/share/licenses/io.github.bhack.mini-eq/pipewire-filter-chain-module/COPYING",
              "/app/share/licenses/io.github.bhack.mini-eq/pipewire-filter-chain-module/LICENSE",
              "/app/share/licenses/io.github.bhack.mini-eq/pipewire-gobject/LICENSE",
          ]

          missing = [path for path in required_license_files if not Path(path).exists()]
          if missing:
              raise SystemExit(f"missing Flatpak license file(s): {', '.join(missing)}")
          PY

          flatpak run --command=python3 io.github.bhack.mini-eq - <<'PY'
          import importlib

          required_modules = ["numpy", "pipewire_gobject"]

          missing = []
          for name in required_modules:
              try:
                  importlib.import_module(name)
              except Exception as exc:
                  missing.append(f"{name}: {exc}")
          if missing:
              raise SystemExit(f"missing Python analyzer module(s): {', '.join(missing)}")
          PY

  flatpak:
    needs:
      - changes
      - flatpak-build
    if: ${{ always() && !(github.event_name == 'workflow_dispatch' && inputs.smoke_only) }}
    runs-on: ubuntu-24.04

    steps:
      - name: Require change detection
        if: ${{ needs.changes.result != 'success' }}
        run: exit 1

      - name: Skip unchanged scope
        if: ${{ needs.changes.outputs.flatpak != 'true' }}
        run: echo "No Flatpak-relevant changes detected; skipping Flatpak build."

      - name: Require Flatpak build
        if: ${{ needs.changes.outputs.flatpak == 'true' && needs['flatpak-build'].result != 'success' }}
        run: exit 1

      - name: Confirm Flatpak build
        if: ${{ needs.changes.outputs.flatpak == 'true' && needs['flatpak-build'].result == 'success' }}
        run: echo "Flatpak build passed."

  flatpak-runtime-smoke:
    needs: changes
    if: ${{ github.event_name == 'workflow_dispatch' && inputs.flatpak_runtime_smoke }}
    runs-on: ubuntu-24.04
    timeout-minutes: 90
    continue-on-error: true

    steps:
      - name: Require change detection
        if: ${{ needs.changes.result != 'success' }}
        run: exit 1

      - name: Check out repository
        uses: actions/checkout@v6

      - name: Install Flatpak and PipeWire test dependencies
        run: |
          sudo apt-get update
          sudo apt-get install -y \
            dbus-user-session \
            flatpak \
            jq \
            pipewire \
            pipewire-bin \
            wireplumber

      - name: Build and run experimental Flatpak runtime smoke
        env:
          MINI_EQ_FLATPAK_BUILD: ${{ inputs.flatpak_runtime_build && '1' || '0' }}
          MINI_EQ_FLATPAK_INSTALL_REMOTE: ${{ inputs.flatpak_runtime_install_remote && '1' || '0' }}
          MINI_EQ_FLATPAK_APP_REF: ${{ inputs.flatpak_runtime_app_ref }}
          MINI_EQ_FLATPAK_INSTALL_REF: ${{ inputs.flatpak_runtime_install_ref }}
          MINI_EQ_FLATPAK_EXPECT_VERSION: ${{ inputs.flatpak_runtime_expected_version }}
        run: tools/run_flatpak_runtime_smoke_ci.sh