// This ensures 'versions.props' file is sorted lexicographically.

configure(rootProject) {
  task versionsPropsAreSorted() {
    doFirst {
      def versionsProps = file('versions.props')
      def lines = versionsProps.readLines("UTF-8")
      def sorted = lines.toSorted()

      if (!Objects.equals(lines, sorted)) {
        def sortedFile = file("${buildDir}/versions.props")
        sortedFile.write(sorted.join("\n"), "UTF-8")
        throw new GradleException("${versionsProps} file is not sorted lexicographically. I wrote a sorted file to ${sortedFile} - please review and commit.")
      }
    }
  }

  precommit.dependsOn versionsPropsAreSorted
}