build.gradle

// doLastだけ or << だけでもよい
task hello << {
    println 'Hello short syntax!'
}
hello.doFirst {
    println 'Hello Venus'
}
hello.doLast {
    println 'Hello Mars'
}

// 複雑のタスク
task upper << {
    String someString = 'mY_nAmE'
    println "Original: " + someString 
    println "Upper case: " + someString.toUpperCase()
}

// 繰り返し
task count << {
    4.times { print "$it " }
}

// 依存関係
task intro(dependsOn: hello) << {
    println "I'm Gradle"
}

// ''つきの場合、未評価のタスクを遅延評価
task taskX(dependsOn: 'taskY') << {
    println 'taskX'
}
task taskY << {
    println 'taskY'
}

// 動的にタスク定義
4.times { counter ->
    task "task$counter" << {
        println "I'm task number $counter"
    }
}
task0.dependsOn task2, task3

// タスク内でのプロパティ定義と利用
task myTask {
    ext.myProperty = "myValue"
}
task printTaskProperties << {
    println myTask.myProperty
}

// ファイル読み込みとant利用
task loadfile << {
    def files = file('../antLoadfileResources').listFiles().sort()
    files.each { File file ->
        if (file.isFile()) {
            ant.loadfile(srcFile: file, property: file.name)
            println " *** $file.name ***"
            println "${ant.properties[file.name]}"
        }
    }
}

// 関数定義と利用
task checksum << {
    fileList('../antLoadfileResources').each {File file ->
        ant.checksum(file: file, property: "cs_$file.name")
        println "$file.name Checksum: ${ant.properties["cs_$file.name"]}"
    }
}
File[] fileList(String dir) {
    file(dir).listFiles({file -> file.isFile() } as FileFilter).sort()
}

// デフォルトタスク
defaultTasks 'clean', 'run'
task clean << {
    println 'Default Cleaning!'
}
task run << {
    println 'Default Running!'
}
task other << {
    println "I'm not a default task!"
}

task distribution << {
    println "We build the zip with version=$version"
}
task release(dependsOn: 'distribution') << {
    println 'We release now'
}
gradle.taskGraph.whenReady {taskGraph ->
    if (taskGraph.hasTask(release)) {
        version = '1.0'
    } else {
        version = '1.0-SNAPSHOT'
    }
}

task.sh

#!/bin/sh

# prepare
GRADLE_DIR="gradle-2.1"
if [ ! -d $GRADLE_DIR ]; then
    curl -L -O https://services.gradle.org/distributions/gradle-2.1-bin.zip
    unzip gradle-2.1-bin.zip
fi

if [ -f "build.gradle" ]; then
    cp build.gradle "$GRADLE_DIR/bin"
else
    exit 1
fi

cd $GRADLE_DIR
export GRADLE_HOME=$(pwd)
cd bin

# ant script file
if [ ! -d ../antLoadfileResources ]; then
    mkdir ../antLoadfileResources
    echo '
    <project default="create_run_jar" name="Create Runnable Jar for Project StringSimilarDetail">
        <!--this file was created by Eclipse Runnable JAR Export Wizard-->
        <!--ANT 1.7 is required                                        -->
        <property name="bin.dir" value="bin" />
        <property name="classes.dir" value="classes" />
        <property name="lucene-gosen.jar" value="lucene-gosen-2.1-dev-naist-chasen.jar" />
        <property name="output.jar" value="output.jar" />
        <dirname property="project.path" file="${ant.file}" />
        <target name="create_run_jar">
            <unzip src="${project.path}/${lucene-gosen.jar}" dest="${project.path}/${lucene-gosen.jar}-unzip"/>
            <copy todir="${project.path}/${classes.dir}/net/" overwrite="yes">
                <fileset dir="${project.path}/${lucene-gosen.jar}-unzip/net/" />
            </copy>
            <copy todir="${project.path}/${classes.dir}/org/" overwrite="yes">
                <fileset dir="${project.path}/${lucene-gosen.jar}-unzip/org/" />
            </copy>
            <jar destfile="${project.path}/${output.jar}" filesetmanifest="mergewithoutmain">
                <manifest>
                    <attribute name="Class-Path" value=". "/>
                </manifest>
                <fileset dir="${project.path}/${bin.dir}"/>
                <fileset dir="${project.path}/${classes.dir}"/>
            </jar>
        </target>
    </project>
    ' > ../antLoadfileResources/build.xml
fi

# execute tasks
tasks=(
  hello
  upper
  upper
  intro
  taskX
  task1
  task0
  printTaskProperties
  loadfile
  checksum
  "" # default
  distribution
  release
)

for task in ${tasks[@]}
do
    echo ""
    echo "---------------------"
    echo "task name is [$task]"
    echo ""
    gradle -q $task
done