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build.gradle
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build.gradle
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/**
* 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.
*/
/**
* Apache S4 Application Build File
*
* Use this script to buils and package S4 apps.
*
* Run 'gradle install' on the s4 project to publish to your local maven repo.
*
* TODO: This should probably be distributed as an s4 plugin for Gradle.
* TODO: There seem to be to be similarities with the war and jetty plugins. (war -> s4r, jetty -> s4Run).
* We should make it easy to test the app from this script by a running a test task that starts and stops
* an s4 server. See: http://www.gradle.org/releases/1.0-milestone-3/docs/userguide/userguide_single.html#war_plugin
*
* This is an interesting discussion:
* http://gradle.1045684.n5.nabble.com/Exclude-properties-file-from-war-td3365147.html
*
*/
/* Set the destination where we want to install the apps. */
//s4AppInstallDir = "/tmp/s4Apps" // TODO: decide how to standarize dirs, use env var?
project.ext["s4AppInstallDir"] = hasProperty('appsDir') ? "$appsDir" : "/tmp/appsDir"
project.ext["s4Version"] = '0.5.0-incubating'
description = 'Apache S4 App'
//defaultTasks 'installS4R'
project.ext["archivesBaseName"] = "$project.name"
project.ext["distRootFolder"] = "$archivesBaseName-${-> version}"
// Append the suffix 'SNAPSHOT' when the build is not for release.
//version = new Version(major: 0, minor: 0, bugfix: 0, isRelease: false)
group = 'org.apache.s4'
apply plugin: 'java'
apply plugin: 'eclipse'
apply plugin: 'idea'
apply plugin:'application'
mainClassName = "org.apache.s4.core.Main"
/* The app classname is set automatically from the source files. */
def appClassname = ''
/* Set Java version. */
sourceCompatibility = 1.6
targetCompatibility = 1.6
repositories {
mavenLocal()
mavenCentral()
mavenRepo name: "gson", url: "http://google-gson.googlecode.com/svn/mavenrepo"
/* Add lib dir as a repo. Some jar files that are not available
in a public repo are distributed in the lib dir. */
flatDir name: 'libDir', dirs: "$rootDir/lib"
}
/* All project libraries must be defined here. */
project.ext["libraries"] = [
twitter4j_core: 'org.twitter4j:twitter4j-core:3.0.3',
twitter4j_stream: 'org.twitter4j:twitter4j-stream:3.0.3',
s4_base: 'org.apache.s4:s4-base:0.5.0-incubating',
s4_comm: 'org.apache.s4:s4-comm:0.5.0-incubating',
s4_core: 'org.apache.s4:s4-core:0.5.0-incubating'
]
dependencies {
/* S4 Platform. We only need the API, not the transitive dependencies. */
// s4Libs.each { module ->
// compile( module ) //{ transitive = false }
// s4API( module )
// }
compile (libraries.s4_base)
compile (libraries.s4_comm)
compile (libraries.s4_core)
compile (libraries.twitter4j_core)
compile (libraries.twitter4j_stream)
}
/* Set the manifest attributes for the S4 archive here.
* TODO: separate custom properties from std ones and set custom properties at the top of the build script.
*/
manifest.mainAttributes(
provider: 'gradle',
'Implementation-Url': 'http://incubator.apache.org/projects/s4.html',
'Implementation-Version': version,
'Implementation-Vendor': 'Apache S4',
'Implementation-Vendor-Id': 's4app',
'S4-App-Class': appClassname, // gets set by the s4r task.
'S4-Version': s4Version
)
project.ext["appDependencies"] = ( configurations.compile )
// external dependencies will be available in the /lib directory of the s4r
task copyDependenciesToLib(type: Copy) {
into project.libsDir.path+"/lib"
from configurations.runtime
}
// app jar will be available from the /app directory of the s4r
task buildProjectJar() {
dependsOn jar {
destinationDir file(project.libsDir.path + "/app")
from sourceSets.main.output
}
}
/* This task will extract all the class files and create a fat jar. We set the manifest and the extension to make it an S4 archive file. */
// TODO: exclude schema files as needed (not critical) see: http://forums.gradle.org/gradle/topics/using_gradle_to_fat_jar_a_spring_project
// TODO: exclude s4 platform jars
task s4r(type: Jar) {
dependsOn cleanCopyDependenciesToLib, copyDependenciesToLib, cleanBuildProjectJar, buildProjectJar
from { project.libsDir }
manifest = project.manifest
extension = 's4r'
exclude '*.s4r'
/* Set class name in manifest. Parse source files until we find a class that extends App.
* Get fully qualified Java class name and set attribute in Manifest.
*/
sourceSets.main.allSource.files.each { File file ->
if (appClassname =="" || appClassname == "UNKNOWN") {
// only execute the closure for this file if we haven't already found the app class name
appClassname = getAppClassname(file)
if(appClassname != "") {
manifest.mainAttributes('S4-App-Class': appClassname)
}
}
}
if (appClassname == "UNKNOWN") {
println "Couldn't find App class in source files...aborting."
exit(1)
}
}
/* List the artifacts that will br added to the s4 archive (and explode if needed). */
s4r << {
appDependencies.each { File file -> println 'Adding to s4 archive: ' + file.name }
configurations.archives.allArtifacts.files.each { println 'Adding to s4 archive: ' + it.name }
/* This is for debugging. */
//configurations.s4All.each { File file -> println 's4All: ' + file.name }
//deployableDependencies.each { File file -> println 'Deploy: ' + file.name }
// more debugging statements.
//sourceSets.main.compileClasspath.each { File file -> println 'compileClasspath: ' + file.name }
}
/* Install the S4 archive to the install directory. */
task installS4R (type: Copy) {
dependsOn s4r
from s4r.archivePath
into s4AppInstallDir
}
/* Generates the gradlew scripts.
http://www.gradle.org/1.0-milestone-3/docs/userguide/gradle_wrapper.html */
task wrapper(type: Wrapper) { gradleVersion = '1.0' }
task cp << {
description='dumps the classpath for running a class from this project, into a \'classpath.txt\' file in the current directory'
new File("classpath.txt").write(sourceSets.main.runtimeClasspath.asPath)
}
/* Parse source file to get the app classname so we can use it in the manifest.
* TODO: Use a real Java parser. (This is not skippong comments for example.)
*/
def getAppClassname(file) {
def classname = "UNKNOWN"
def lines= file.readLines()
def packageName = ""
for(line in lines) {
def pn = line =~ /.*package\s+([\w\.]+)\s*;.*/
if(pn) {
packageName = pn[0][1] + "."
}
def an = line =~ /.*public\s+class\s+(\w+)\s+extends.+App.*\{/
if (an) {
classname = packageName + an[0][1]
println "Found app class name: " + classname
break
}
}
classname
}
class Version {
int major
int minor
int bugfix
boolean isRelease
String toString() {
"$major.$minor.$bugfix${isRelease ? '' : '-SNAPSHOT'}"
}
}