How to create Java gradle project

Question

How to create Java Gradle project from command line   It should create standard maven folder layout like on the picture below     UPDATE     1  From http   www gradle org docs current userguide tutorial java projects html I need to create file build gradle with 2 lines   apply plugin   java  apply plugin   eclipse      2  Add to build gradle task below  than execute gradle create-dirs   task  create-dirs   lt  lt       sourceSets  java srcDirs  each   it mkdirs        sourceSets  resources srcDirs  each   it mkdirs           3  Then run gradle eclipse  or corresponding string to other IDE plugin configured   So is there way to do it in one command

User · Answer

The gradle guys are doing their best to solve all  y our problems  -    They recently  since 1 9  added a new feature  incubating   the  build init  plugin   See  build init plugin documentation

User · Answer

Here is what it worked for me   I wanted to create a hello world java application with gradle with the following requirements   The application has external jar dependencies Create a runnable fat jar with all dependent classes copied to the jar Create a runnable jar with all dependent libraries copied to a directory  quot dependencies quot  and add the classpath in the manifest   Here is the solution    Install the latest gradle   check gradle --version   I used gradle 6 6 1  Create a folder and open a terminal Execute gradle init --type java-application Add the required data in the command line Import the project into an IDE  IntelliJ or Eclipse  Edit the build gradle file with the following tasks    Runnable fat Jar task fatJar type  Jar     clean  println  quot Creating fat jar quot    manifest       attributes  Main-Class    com abc gradle hello App      archiveName  quot   runnableJar  quot   from       configurations compile collect   it isDirectory     it   zipTree it        configurations runtimeClasspath collect   it isDirectory     it   zipTree it       with jar  println  quot Fat jar is created quot      Copy Dependencies task copyDepends type  Copy       from configurations default    into  quot   dependsDir  quot     Create jar with classpath dependecies in manifest task createJar type  Jar       println  quot Cleaning    quot      clean    manifest       attributes  Main-Class    com abc gradle hello App                Class-Path   configurations default collect    dependencies                   it getName     join                from         configurations compile collect   it isDirectory     it   zipTree it        with jar   println  quot   outputJar  created quot     Here is the complete build gradle plugins       id  java     id  application    repositories       mavenCentral     dependencies     implementation  org slf4j slf4j-api 1 7 30    implementation  ch qos logback logback-classic 1 2 3    implementation  ch qos logback logback-core 1 2 3    testImplementation  junit junit 4 13    def outputJar    quot   buildDir  libs   rootProject name  jar quot  def dependsDir    quot   buildDir  libs dependencies  quot  def runnableJar    quot   rootProject name  fat jar quot      Create runnable fat jar task fatJar type  Jar       clean    println  quot Creating fat jar quot      manifest       attributes  Main-Class    com abc gradle hello App        archiveName  quot   runnableJar  quot    from       configurations compile collect   it isDirectory     it   zipTree it        configurations runtimeClasspath collect   it isDirectory     it   zipTree it        with jar   println  quot Fat jar is created quot        Copy dependent libraries to directory  task copyDepends type  Copy     from configurations default  into  quot   dependsDir  quot       Create runnable jar with dependencies task createJar type  Jar     println  quot Cleaning    quot    clean  manifest       attributes  Main-Class    com abc gradle hello App                Class-Path   configurations default collect    dependencies                  it getName     join                from        configurations compile collect   it isDirectory     it   zipTree it       with jar   println  quot   outputJar  created quot     Gradle build commands  Create fat jar   gradle fatJar  Copy dependencies   gradle copyDepends  Create runnable jar with dependencies   gradle createJar More details can be read here   https   jafarmlp medium com a-simple-java-project-with-gradle-2c323ae0e43d

User · Answer

I just tried with with Eclipse Neon 1 and Gradle   ------------------------------------------------------------ Gradle 3 2 1 ------------------------------------------------------------  Build time    2016-11-22 15 19 54 UTC Revision      83b485b914fd4f335ad0e66af9d14aad458d2cc5  Groovy        2 4 7 Ant           Apache Ant TM  version 1 9 6 compiled on June 29 2015 JVM           1 8 0 112  Oracle Corporation 25 112-b15  OS            Windows 10 10 0 amd64     On windows 10 with Java Version   C  FDriveKambiz repo gradle-gen-project gt java -version java version  1 8 0 112  Java TM  SE Runtime Environment  build 1 8 0 112-b15  Java HotSpot TM  64-Bit Server VM  build 25 112-b15  mixed mode    And it failed miserably as you can see in Eclipse  But sailed like a soaring eagle in Intellij   I dont know Intellij  and a huge fan of eclipse  but common dudes  this means NO ONE teste Neon 1 for the simplest of use cases   to import a gradle project  That is not good enough  I am switching to Intellij for gradle projects

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Finally after comparing all solution  I think starting from build gradle file can be convenient    Gradle distribution has samples folder with a lot of examples  and there is gradle init --type basic comand see Chapter 47  Build Init Plugin  But they all needs some editing   You can use template below as well  then run gradle initSourceFolders eclipse       Nodeclipse Enide build gradle template for basic Java project     https   github com Nodeclipse nodeclipse-1 blob master org nodeclipse enide editors gradle docs java basic build gradle   Initially asked on     http   stackoverflow com questions 14017364 how-to-create-java-gradle-project   Usage     1  create folder  or general Eclipse project  and put this file inside     2  run  gradle initSourceFolders eclipse  or  gradle initSourceFolders idea     author Paul Verest     based on  gradle init --type basic   that does not create source folders      apply plugin   java  apply plugin   eclipse  apply plugin   idea   task initSourceFolders      add  lt  lt  before   to prevent executing during configuration phase    sourceSets  java srcDirs  each   it mkdirs        sourceSets  resources srcDirs  each   it mkdirs        task wrapper type  Wrapper        gradleVersion    1 11        In this section you declare where to find the dependencies of your project repositories          Use Maven Central for resolving your dependencies         You can declare any Maven Ivy file repository here      mavenCentral         In this section you declare the dependencies for your production and test code dependencies         compile fileTree dir   libs   include     jar          The production code uses the SLF4J logging API at compile time       compile  org slf4j slf4j-api 1 7 5          Declare the dependency for your favourite test framework you want to use in your tests         TestNG is also supported by the Gradle Test task  Just change the        testCompile dependency to testCompile  org testng testng 6 8 1  and add         test useTestNG    to your build script      testCompile  junit junit 4 11      The result is like below      That can be used without any Gradle plugin for Eclipse  or with  Enide  Gradle for Eclipse  Jetty  Android alternative to Gradle Integration for Eclipse

User · Answer

I could handle it using a groovy method in build gradle to create all source folders for java  resources and test  Then I set it to run before gradle eclipse task   eclipseClasspath doFirst       initSourceFolders      def initSourceFolders         sourceSets  java srcDirs  each   it mkdirs         sourceSets  resources srcDirs  each   it mkdirs         Now we can setup a new gradle Java EE project to eclipse with only one command  I put this example at GitHub

User · Answer

Unfortunately you cannot do it in one command  There is an open issue for the very feature   Currently you ll have to do it by hand  If you need to do it often  you can create a custom gradle plugin  or just prepare your own project skeleton and copy it when needed   EDIT  The JIRA issue mentioned above has been resolved  as of May 1  2013  and fixed in 1 7-rc-1  The documentation on the Build Init Plugin is available  although it indicates that this feature is still in the  incubating  lifecycle

User · Answer

If you are using Eclipse  for an existing project  which has a build gradle file  you can simply type gradle eclipse which will create all the Eclipse files and folders for this project   It takes care of all the dependencies for you and adds them to the project resource path in Eclipse as well

User · Answer

To create a Java project  create a new project directory  jump into it and execute  gradle init --type java-library   Source folders and a Gradle build file  including a wrapper  will be build

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