gradle/validation/versions-props-sorted.gradle

/*
 * Licensed to the Apache Software Foundation (ASF) under one or more
 * contributor license agreements.  See the NOTICE file distributed with
 * this work for additional information regarding copyright ownership.
 * The ASF licenses this file to You under the Apache License, Version 2.0
 * (the "License"); you may not use this file except in compliance with
 * the License.  You may obtain a copy of the License at
 *
 *     http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */

// 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.")
      }
    }
  }
}