/*
* 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 = versions.gradle
}
// 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.
task 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"
// 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.
// IMPORTANT: This checksum **must** be updated whenever the Gradle version changes.
String wrapperChecksum = "423cb469ccc0ecc31f0e4e1c309976198ccb734cdcbb7029d4bda0f18f57e8d9"
def wrapperJarUrl = "https://raw.githubusercontent.com/gradle/gradle/v$versions.gradle/gradle/wrapper/gradle-wrapper.jar"
def bootstrapString = """
# Loop in case we encounter an error.
REQUIRED_WRAPPER_JAR_CHECKSUM="$wrapperChecksum"
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
else
# Verify checksum of existing wrapper JAR.
# This prevents developers from running into incompatibility issues when using an outdated wrapper JAR after a Gradle upgrade.
# Use sha256sum or shasum, whichever is available.
if command -v sha256sum >/dev/null 2>&1; then
LOCAL_WRAPPER_JAR_CHECKSUM=\$(sha256sum "$wrapperJarPath" | awk '{print \$1}')
elif command -v shasum >/dev/null 2>&1; then
LOCAL_WRAPPER_JAR_CHECKSUM=\$(shasum -a 256 "$wrapperJarPath" | awk '{print \$1}')
else
# If no checksum tool is found, this verification is skipped .
warn "Cannot find sha256sum or shasum to verify wrapper JAR."
break
fi
# If the local checksum does not match the required checksum, delete the JAR to force re-download.
if [ "\$LOCAL_WRAPPER_JAR_CHECKSUM" != "\$REQUIRED_WRAPPER_JAR_CHECKSUM" ] ; then
rm -f "$wrapperJarPath"
else
break
fi
fi
done
""".stripIndent()
String putBootstrapStringAbove = "# Add default JVM options here. You can also use JAVA_OPTS and GRADLE_OPTS to pass JVM options to this script."
def wrapperScript = wrapper.scriptFile
def wrapperLines = wrapperScript.readLines()
wrapperScript.withPrintWriter { out ->
def bootstrapWritten = false
wrapperLines.each { line ->
// Print the wrapper bootstrap before the first usage of the wrapper jar.
if (!bootstrapWritten && line.contains(putBootstrapStringAbove)) {
out.println(bootstrapString)
bootstrapWritten = true
}
out.print(line)
out.println()
}
}
}
}
wrapper.finalizedBy bootstrapWrapper
// Remove the generated batch file since we don't test building in the Windows environment.
task removeWindowsScript(type: Delete) {
delete "$rootDir/gradlew.bat"
}
wrapper.finalizedBy removeWindowsScript