discourse/.github/workflows/migration-tests.yml

name: Migration Tests

on:
  pull_request:
    paths:
      - ".github/workflows/migration-tests.yml"
      - "migrations/**"
  push:
    branches:
      - main
      - stable
    paths:
      - ".github/workflows/migration-tests.yml"
      - "migrations/**"

concurrency:
  group: migration-tests-${{ format('{0}-{1}', github.head_ref || github.run_number, github.job) }}
  cancel-in-progress: true

permissions:
  contents: read

jobs:
  gems:
    if: github.event_name == 'pull_request' || github.repository != 'discourse/discourse-private-mirror'
    name: Gems
    runs-on: ${{ (github.repository_owner == 'discourse' && 'cdck-linux-8-core') || 'ubuntu-latest' }}
    container: discourse/discourse_test:release
    timeout-minutes: 15

    steps:
      - name: Set working directory owner
        run: chown root:root .

      - uses: actions/checkout@v7
        with:
          fetch-depth: 1

      - name: RSpec (isolated, no Rails)
        # Each gem uses its own Gemfile (not the app's), so Rails is not on the
        # load path. This proves the gems work standalone.
        run: |
          for gem in core tooling converters importer; do
            echo "== migrations-$gem =="
            (cd "migrations/$gem" && bundle install --jobs $(($(nproc) - 1)) && bundle exec rspec --tag ~rails)
          done

      - name: Converter coverage (no Rails)
        run: |
          # Reuse the image's prebuilt bundle so a Gemfile.lock change installs
          # only the delta, not the whole root bundle.
          ln -s /var/www/discourse/vendor/bundle vendor/bundle
          bundle config set --local path vendor/bundle
          bundle config set --local deployment true
          bundle config set --local without development
          bundle config set --local with migrations
          bundle install --jobs $(($(nproc) - 1))
          # Fails if the reference (Discourse) converter leaves an IntermediateDB
          # column unwritten, or writes columns or models that don't exist in the
          # schema. Runs without Rails or a source database.
          migrations/bin/disco check coverage

  tests:
    if: github.event_name == 'pull_request' || github.repository != 'discourse/discourse-private-mirror'
    name: Tests
    runs-on: ${{ (github.repository_owner == 'discourse' && 'cdck-linux-8-core') || 'ubuntu-latest' }}
    container: discourse/discourse_test:release
    timeout-minutes: 20

    env:
      RAILS_ENV: test
      PGUSER: discourse
      PGPASSWORD: discourse
      LOAD_PLUGINS: 1

    steps:
      - name: Enable jemalloc
        run: echo /usr/lib/libjemalloc.so.1 > /etc/ld.so.preload

      - name: Verify jemalloc is loaded into Ruby
        run: |
          ruby -e 'abort "jemalloc not loaded" unless File.read("/proc/self/maps").include?("libjemalloc")'

      - name: Set working directory owner
        run: chown root:root .

      - uses: actions/checkout@v7
        with:
          fetch-depth: 1

      - name: Setup Git
        run: |
          git config --global user.email "ci@ci.invalid"
          git config --global user.name "Discourse CI"

      - name: Start redis
        run: |
          redis-server /etc/redis/redis.conf &

      - name: Start Postgres
        run: |
          chown -R postgres /var/run/postgresql
          sudo -E -u postgres script/start_test_db.rb
          sudo -u postgres psql -c "CREATE ROLE $PGUSER LOGIN SUPERUSER PASSWORD '$PGPASSWORD';"

      - name: Symlink vendor/bundle from image
        run: |
          ln -s /var/www/discourse/vendor/bundle vendor/bundle

      - name: Setup gems
        run: |
          bundle config --local path vendor/bundle
          bundle config --local deployment true
          bundle config --local without development
          bundle config --local with migrations
          bundle install --jobs $(($(nproc) - 1))

      - name: pnpm install
        run: pnpm install --frozen-lockfile

      - name: Create and migrate database
        run: |
          bin/rake db:create
          script/silence_successful_output bin/rake db:migrate

      - name: Run all schema and converter checks (disco check)
        run: |
          # Runs every check in dependency order: pending migrations, schema
          # config validity, config ↔ database drift, committed generated files
          # vs regeneration (in a temp directory), and converter coverage.
          # Prints the actionable differences and fix commands on failure.
          migrations/bin/disco check

      - name: RSpec (Rails integration)
        env:
          MIGRATIONS_RAILS: "1"
        run: |
          for gem in core tooling converters importer; do
            echo "== migrations-$gem (Rails integration) =="
            (cd "migrations/$gem" && BUNDLE_GEMFILE="$GITHUB_WORKSPACE/Gemfile" bundle exec rspec --tag rails)
          done