name: Per-language bundles
description: Validates extraction and analysis using each per-language CodeQL bundle.
# TODO: Use a released bundle once releases include per-language bundles.
matrix:
  include:
    - language: actions
      os: ubuntu-latest
      version: nightly-latest
      # Actions also needs the JavaScript extractor.
      expected-extractors: actions javascript
    - language: cpp
      os: ubuntu-latest
      version: nightly-latest
      build-mode: manual
      build-command: gcc -o main main.c
    - language: csharp
      os: ubuntu-latest
      version: nightly-latest
      build-mode: none
    - language: go
      os: ubuntu-latest
      version: nightly-latest
      build-mode: autobuild
    - language: java
      os: ubuntu-latest
      version: nightly-latest
      build-mode: none
    - language: javascript
      os: ubuntu-latest
      version: nightly-latest
    - language: python
      os: ubuntu-latest
      version: nightly-latest
    - language: ruby
      os: ubuntu-latest
      version: nightly-latest
    - language: rust
      os: ubuntu-latest
      version: nightly-latest
    - language: swift
      os: macos-latest-xlarge
      version: nightly-latest
      build-mode: autobuild
env:
  CODEQL_ACTION_PER_LANGUAGE_BUNDLES: true
steps:
  - uses: ./../action/init
    id: init
    with:
      languages: ${{ matrix.language }}
      build-mode: ${{ matrix['build-mode'] }}
      tools: ${{ steps.prepare-test.outputs.tools-url }}
  - name: Check that the bundle contains only the expected extractors
    env:
      CODEQL_PATH: ${{ steps.init.outputs.codeql-path }}
      LANGUAGE: ${{ matrix.language }}
      EXPECTED_EXTRACTORS: ${{ matrix['expected-extractors'] || matrix.language }}
    run: |
      extractors="$("$CODEQL_PATH" resolve languages --format=json | jq -r 'keys[]')"
      echo "Extractors in the bundle:"
      echo "$extractors"
      echo "Expected: $EXPECTED_EXTRACTORS"

      for expected in $EXPECTED_EXTRACTORS; do
        if ! echo "$extractors" | grep -qx "$expected"; then
          echo "::error::The ${LANGUAGE} bundle does not contain the ${expected} extractor."
          exit 1
        fi
      done

      # If the bundle contained extractors beyond those the language needs, then it would not
      # have been trimmed, and this job would be silently validating the combined bundle.
      for other in actions cpp csharp go java javascript python ruby rust swift; do
        if echo "$EXPECTED_EXTRACTORS" | grep -qw "$other"; then
          continue
        fi
        if echo "$extractors" | grep -qx "$other"; then
          echo "::error::The ${LANGUAGE} bundle also contains the ${other} extractor, so it is not trimmed."
          exit 1
        fi
      done
  - name: Check that the bundle was not added to the toolcache
    env:
      CODEQL_PATH: ${{ steps.init.outputs.codeql-path }}
    run: |
      # A bundle that is missing most of its extractors must never be left in the toolcache,
      # where a later job analyzing a different language could pick it up. The runner image
      # ships with its own CodeQL in the toolcache, so check where this bundle was extracted to
      # rather than whether the toolcache contains CodeQL at all.
      echo "CodeQL is at $CODEQL_PATH"
      if [[ "$CODEQL_PATH" == "$RUNNER_TOOL_CACHE"/* ]]; then
        echo "::error::The per-language bundle was added to the toolcache at $CODEQL_PATH."
        exit 1
      fi
      if [[ "$CODEQL_PATH" != "$RUNNER_TEMP"/* ]]; then
        echo "::error::Expected the per-language bundle to be extracted under $RUNNER_TEMP, but found it at $CODEQL_PATH."
        exit 1
      fi
  - name: Build code
    if: matrix['build-command']
    run: ${{ matrix['build-command'] }}
  - uses: ./../action/analyze
    id: analysis
    with:
      upload-database: false
  - name: Check that a database was created for the language
    env:
      DB_LOCATIONS: ${{ steps.analysis.outputs.db-locations }}
      LANGUAGE: ${{ matrix.language }}
    run: |
      database="$(echo "$DB_LOCATIONS" | jq -r --arg lang "$LANGUAGE" '.[$lang] // empty')"
      if [ -z "$database" ] || [ ! -d "$database" ]; then
        echo "::error::No CodeQL database was created for ${LANGUAGE}."
        echo "Databases: $DB_LOCATIONS"
        exit 1
      fi
      echo "Created a ${LANGUAGE} database at ${database}."