name: "Config Matrix"

on:
   pull_request:
   push:

jobs:
  skip_duplicates:
    continue-on-error: true
    runs-on: ubuntu-latest
    outputs:
      should_skip: ${{ steps.skip_check.outputs.should_skip }}
    steps:
      - id: skip_check
        # pin to unreleased SHA so we can use 'same_content_newer'
        # see https://github.com/fkirc/skip-duplicate-actions/pull/112
        uses: fkirc/skip-duplicate-actions@98d1dc89f43a47f8e4fba8e1c1fb8d6c5fc515ee
        with:
          concurrent_skipping: 'same_content_newer'
          skip_after_successful_duplicate: 'true'
          paths_ignore: '["doc/**", "**/*.md", ".gitignore", "libxcrypt.spec.rpkg", ".packit.yaml", "rpkg.macros", "AUTHORS", "ChangeLog", "COPYING.LIB", "LICENSING", "NEWS", "README", "THANKS", "TODO"]'
          do_not_skip: '["workflow_dispatch", "schedule"]'

  build:
    needs: skip_duplicates
    if: ${{ needs.skip_duplicates.outputs.should_skip != 'true' }}

    runs-on: ubuntu-latest

    strategy:
      fail-fast: false
      matrix:
        compiler: [gcc, clang]
        config_opts:
        # General-purpose configurations with the obsolete APIs present.
        - "--enable-obsolete-api --enable-hashes=all"
        - "--enable-obsolete-api --enable-hashes=all --enable-obsolete-api-enosys"
        - "--enable-obsolete-api --enable-hashes=all --disable-failure-tokens"
        - "--enable-obsolete-api --enable-hashes=all --enable-obsolete-api-enosys --disable-failure-tokens"
        - "--enable-obsolete-api --enable-hashes=all --disable-symvers"
        - "--enable-obsolete-api --enable-hashes=glibc"
        - "--enable-obsolete-api=glibc --enable-hashes=strong,glibc"

        # General-purpose configurations with the obsolete APIs absent.
        # Note that the obsolete APIs are always absent from the static library,
        # so --disable-shared implies --disable-obsolete-api.
        - "--disable-obsolete-api --enable-hashes=all"
        - "--disable-obsolete-api --enable-hashes=all --disable-shared"
        - "--disable-obsolete-api --enable-hashes=all --disable-static"
        - "--disable-obsolete-api --enable-hashes=all --disable-failure-tokens"
        - "--disable-obsolete-api --enable-hashes=all --disable-symvers"
        - "--disable-obsolete-api --enable-hashes=strong"

        # Configurations with only one hash enabled.  These exist to
        # detect build failures due to incorrect ifdeffage.
        - "--disable-obsolete-api --enable-hashes=bcrypt"
        - "--disable-obsolete-api --enable-hashes=bcrypt_a"
        - "--disable-obsolete-api --enable-hashes=bcrypt_x"
        - "--disable-obsolete-api --enable-hashes=bcrypt_y"
        - "--disable-obsolete-api --enable-hashes=bigcrypt"
        - "--disable-obsolete-api --enable-hashes=bsdicrypt"
        - "--disable-obsolete-api --enable-hashes=descrypt"
        - "--disable-obsolete-api --enable-hashes=gost-yescrypt"
        - "--disable-obsolete-api --enable-hashes=md5crypt"
        - "--disable-obsolete-api --enable-hashes=nt"
        - "--disable-obsolete-api --enable-hashes=scrypt"
        - "--disable-obsolete-api --enable-hashes=sha1crypt"
        - "--disable-obsolete-api --enable-hashes=sha256crypt"
        - "--disable-obsolete-api --enable-hashes=sha512crypt"
        - "--disable-obsolete-api --enable-hashes=sunmd5"
        - "--disable-obsolete-api --enable-hashes=yescrypt"

    env:
      CC: ${{ matrix.compiler }}
      CONFIG_OPTS: ${{ matrix.config_opts }}

    steps:
    - name: Checkout
      uses: actions/checkout@v2

    - name: Install packages
      if: ${{ matrix.compiler == 'clang' }}
      run: sudo apt-get install clang

    - name: Versions of build tools
      id: build-tools
      run: ./build-aux/ci/ci-log-dependency-versions

    - name: Get nprocs
      run: echo "NPROCS=$((`nproc --all 2>/dev/null || sysctl -n hw.ncpu` * 2))" | tee $GITHUB_ENV

    - name: Cache bootstrap
      id: cache
      uses: actions/cache@v2
      with:
        path: |
          INSTALL
          Makefile.in
          aclocal.m4
          config.h.in
          configure
          autom4te.cache/**
          build-aux/m4/libtool.m4
          build-aux/m4/ltoptions.m4
          build-aux/m4/ltsugar.m4
          build-aux/m4/ltversion.m4
          build-aux/m4/lt~obsolete.m4
          build-aux/m4-autogen/**
        key: autoreconf-${{ steps.build-tools.outputs.autotools-ver }}-${{ hashFiles('autogen.sh', 'configure.ac', 'Makefile.am', 'build-aux/m4/*.m4', 'build-aux/m4-autogen/**') }}

    - name: Bootstrap
      if: steps.cache.outputs.cache-hit != 'true'
      run: ./autogen.sh

    - name: Configure
      run: ./build-aux/ci/configure-wrapper $CONFIG_OPTS

    - name: Build
      run: |
        make -j${{ env.NPROCS }} all
        make -j${{ env.NPROCS }} test-programs

    - name: Test
      run: make -j${{ env.NPROCS }} check

    - name: Detailed error logs
      if: failure()
      run: ./build-aux/ci/ci-log-logfiles
