name: Check Swift database upgrade/downgrade scripts
runs:
  using: composite
  steps:
    - name: Check upgrade scripts
      shell: bash
      working-directory: swift
      run: |
        echo > empty.trap
        codeql dataset import -S ql/lib/upgrades/initial/swift.dbscheme testdb empty.trap
        codeql dataset upgrade testdb --additional-packs ql/lib
        diff -q testdb/swift.dbscheme ql/lib/swift.dbscheme
    - name: Check downgrade scripts
      shell: bash
      working-directory: swift
      run: |
        echo > empty.trap
        rm -rf testdb
        codeql dataset import -S ql/lib/swift.dbscheme testdb empty.trap
        codeql resolve upgrades --format=lines --allow-downgrades --additional-packs downgrades \
         --dbscheme=ql/lib/swift.dbscheme --target-dbscheme=downgrades/initial/swift.dbscheme |
         xargs -r codeql execute upgrades testdb
        diff -q testdb/swift.dbscheme downgrades/initial/swift.dbscheme