name: Release

on:
  push:
    tags:
      # This syntax is globs, not regex, so it's matching any tag that
      # contains the prefix "mosh-" and the 3 version elements.
      - "mosh-*.*.*"

jobs:
  macports-cache:
    runs-on: macos-12

    steps:
    - uses: actions/checkout@v2

    - name: "Install gtar wrapper"
      run: |
        sudo mv /usr/local/bin/gtar /usr/local/bin/gtar.orig
        sudo cp macosx/gtar /usr/local/bin/gtar
        sudo chmod +x /usr/local/bin/gtar

    - name: Cache macports
      id: cache-macports
      uses: actions/cache@v3
      env:
        cache-name: cache-macports
      with:
        path: /opt/local
        key: ${{ runner.os }}-build-${{ env.cache-name }}-${{ hashFiles('macosx/port-deps.sh') }}
        restore-keys: |
          ${{ runner.os }}-build-${{ env.cache-name }}-
          ${{ runner.os }}-build-
          ${{ runner.os }}-

    - name: "setup MacPorts environment"
      run: |
        curl -L "https://github.com/macports/macports-base/releases/download/v2.7.2/MacPorts-2.7.2-12-Monterey.pkg" --output macports.pkg
        sudo installer -pkg macports.pkg -target /
        ./macosx/port-deps.sh deps

  release:
    needs: macports-cache
    runs-on: ${{ matrix.os }}

    strategy:
      matrix:
        os: [ubuntu-22.04, macos-12]

    steps:
    - uses: actions/checkout@v2

    - name: "ensure version bumped"
      run: |
        expected_tag=$(echo ${{ github.ref }} | cut -d'/' -f3)
        have_tag="mosh-$(sed -n 's/AC_INIT(\[[^]]*\], \[\([^]]*\)\].*/\1/p' <configure.ac)"
        echo "Expected tag <$expected_tag>, got <$have_tag>"
        if [[ "$expected_tag" != "$have_tag" ]]; then exit 1; fi

    - name: "setup linux build environment"
      if: ${{ startsWith(matrix.os, 'ubuntu') }}
      run: sudo apt install -y protobuf-compiler libprotobuf-dev libutempter-dev autoconf automake nettle-dev

    - name: "Install gtar wrapper"
      if: ${{ startsWith(matrix.os, 'macos') }}
      run: |
        sudo mv /usr/local/bin/gtar /usr/local/bin/gtar.orig
        sudo cp macosx/gtar /usr/local/bin/gtar
        sudo chmod +x /usr/local/bin/gtar

    - name: Restore macports cache
      id: cache-macports
      if: ${{ startsWith(matrix.os, 'macos') }}
      uses: actions/cache@v3
      env:
        cache-name: cache-macports
      with:
        path: /opt/local
        key: ${{ runner.os }}-build-${{ env.cache-name }}-${{ hashFiles('macosx/port-deps.sh') }}
        restore-keys: |
          ${{ runner.os }}-build-${{ env.cache-name }}-
          ${{ runner.os }}-build-
          ${{ runner.os }}-

    - name: "describe macos build environment"
      if: ${{ startsWith(matrix.os, 'macos') }}
      run: |
        BUILD_TAG=$(echo ${{ github.ref }} | cut -d'/' -f3)
        mkdir macosx/build-report &&
        pushd macosx/build-report &&
        ../port-deps.sh describe &&
        ../osx-xcode.sh describe &&
        tar -cjf "../${BUILD_TAG}-osx-build-report.tbz" . &&
        popd

    - name: "generate build scripts"
      run: PATH=/opt/local/bin:$PATH ./autogen.sh

    - name: "configure"
      if: ${{ startsWith(matrix.os, 'ubuntu') }}
      run: ./configure --enable-compile-warnings=error --enable-examples

    - name: "build"
      if: ${{ startsWith(matrix.os, 'ubuntu') }}
      run: make V=1

    - name: "test"
      if: ${{ startsWith(matrix.os, 'ubuntu') }}
      run: make V=1 distcheck -j

    - name: "unshallow git repository for git describe"
      if: ${{ startsWith(matrix.os, 'macos') }}
      run: git fetch --tags --unshallow -f

    - name: "macOS package build"
      if: ${{ startsWith(matrix.os, 'macos') }}
      run: |
        pushd macosx &&
        env ZERO_AR_DATE=1 MACOSX_DEPLOYMENT_TARGET=11.0 PATH=/opt/local/bin:$PATH ./build.sh &&
        popd

    - name: "Upload Release"
      # v1 aka v0.1.14 as of 2022-07-05; pinned to avoid potential code injection
      uses: softprops/action-gh-release@1e07f4398721186383de40550babbdf2b84acfc5
      with:
        # Action always creates releases in "draft" mode, and requires
        # a maintainer to publish them
        draft: True
        prerelease: ${{ contains(github.ref, 'rc') }}
        generate_release_notes: True
        files: |
          mosh-*.tar.gz
          macosx/*.pkg
          macosx/*-osx-build-report.tbz