| /* |
| * 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 file contains tasks for the gradle wrapper generation. |
| |
| // Ensure the wrapper script is generated based on the version defined in the project |
| // and not the version installed on the machine running the task. |
| // Read more about the wrapper here: https://docs.gradle.org/current/userguide/gradle_wrapper.html |
| wrapper { |
| gradleVersion = project.gradleVersion |
| distributionType = Wrapper.DistributionType.ALL |
| } |
| |
| // Custom task to inject support for downloading the gradle wrapper jar if it doesn't exist. |
| // This allows us to avoid checking in the jar to our repository. |
| // Additionally adds a license header to the wrapper while editing the file contents. |
| tasks.register('bootstrapWrapper') { |
| // In the doLast block so this runs when the task is called and not during project configuration. |
| doLast { |
| def wrapperBasePath = "\$APP_HOME/gradle/wrapper" |
| def wrapperJarPath = wrapperBasePath + "/gradle-wrapper.jar" |
| |
| // Add a trailing zero to the version if needed. |
| def fullVersion = project.gradleVersion.count(".") == 1 ? "${project.gradleVersion}.0" : versions.gradle |
| // Leverages the wrapper jar checked into the gradle project on github because the jar isn't |
| // available elsewhere. Using raw.githubusercontent.com instead of github.com because |
| // github.com servers deprecated TLSv1/TLSv1.1 support some time ago, so older versions |
| // of curl (built against OpenSSL library that doesn't support TLSv1.2) would fail to |
| // fetch the jar. |
| def wrapperBaseUrl = "https://raw.githubusercontent.com/gradle/gradle/v$fullVersion/gradle/wrapper" |
| def wrapperJarUrl = wrapperBaseUrl + "/gradle-wrapper.jar" |
| |
| def bootstrapString = """ |
| # Loop in case we encounter an error. |
| for attempt in 1 2 3; do |
| if [ ! -e "$wrapperJarPath" ]; then |
| if ! curl -s -S --retry 3 -L -o "$wrapperJarPath" "$wrapperJarUrl"; then |
| rm -f "$wrapperJarPath" |
| # Pause for a bit before looping in case the server throttled us. |
| sleep 5 |
| continue |
| fi |
| fi |
| done |
| """.stripIndent() |
| |
| def wrapperScript = wrapper.scriptFile |
| def wrapperLines = wrapperScript.readLines() |
| wrapperScript.withPrintWriter { out -> |
| def bootstrapWritten = false |
| wrapperLines.each { line -> |
| // Print the wrapper bootstrap before the first usage of the wrapper jar. |
| if (!bootstrapWritten && line.contains("gradle-wrapper.jar")) { |
| out.println(bootstrapString) |
| bootstrapWritten = true |
| } |
| out.print(line) |
| out.println() |
| } |
| } |
| } |
| } |
| wrapper.finalizedBy bootstrapWrapper |
| |
| // Remove the generated batch file since we don't test building in the Windows environment. |
| tasks.register('removeWindowsScript', Delete) { |
| delete "$rootDir/gradlew.bat" |
| } |
| wrapper.finalizedBy removeWindowsScript |
