name: build

on:
  push:
  pull_request:
  workflow_dispatch:

jobs:
  build:
    name: ${{ matrix.os }}
    runs-on: ${{ matrix.os }}
    strategy:
      fail-fast: false
      matrix:
        os: [ubuntu-latest, macos-latest]

    steps:
      - uses: actions/checkout@v4

      # Deps, collocatordb and dereko2vec, with rocksdb and collocatordb
      # linked statically. The distribution brings the static rocksdb on both,
      # so no rocksdb is built.
      - name: Install everything (Linux)
        if: runner.os == 'Linux'
        run: scripts/install.sh

      # The count based part of the test traps on MacOS, while it runs on
      # Linux. So the tests are a step of their own there, with a backtrace
      # below when they fail, instead of failing the installation.
      - name: Install everything (macOS)
        if: runner.os == 'macOS'
        run: scripts/install.sh --skip-tests

      - name: Test (macOS)
        if: runner.os == 'macOS'
        run: ctest --test-dir build --output-on-failure

      # The count based part of the test traps on MacOS, while it runs on
      # Linux with rocksdb 8.9, 10.2 and 11.0. Without a backtrace there is
      # nothing to go by, so produce one.
      - name: Backtrace of the crash (macOS)
        if: failure() && runner.os == 'macOS'
        run: |
          D=$(mktemp -d)
          ./build/dereko2vec -train tests/data/wpd19_10000.w2vinput -output "$D/m.vecs" \
              -type 3 -save-vocab "$D/m.vocab" -size 50 -window 5 -negative 5 \
              -threads 4 -iter 1 -min-count 2 -binary 1 > /dev/null 2>&1
          lldb --batch -o run -o 'bt all' -o quit -- ./build/dereko2vec \
              -train tests/data/wpd19_10000.w2vinput -output "$D/m.rocksdb" \
              -type 5 -read-vocab "$D/m.vocab" -threads 8 2>&1 | tail -80

      # The training writes the memory mappable form of the model, which
      # derekovecs maps. vecs2mmap does the same for models trained earlier.
      - name: Check the memory mappable model form
        run: |
          ./build/dereko2vec -train tests/data/wpd19_10000.w2vinput -output /tmp/m.vecs \
              -type 3 -size 50 -window 5 -negative 5 -threads 2 -iter 1 -min-count 5 -binary 1
          echo "written by the training:"
          ls -l /tmp/m.vecs.vecs /tmp/m.vecs.words
          rm /tmp/m.vecs.vecs /tmp/m.vecs.words
          ./build/vecs2mmap /tmp/m.vecs
          echo "written by vecs2mmap:"
          ls -l /tmp/m.vecs.vecs /tmp/m.vecs.words

      # install.sh has already installed; make sure the installed binaries run
      - name: Smoke test of the installed binaries
        run: |
          dereko2vec 2>&1 | head -1
          vecs2mmap -h | head -1