gradle • groovy

Gradle: set different name for wrapper and default build script

Overview

Thanks to mrhaki and his awesome presentation on GR8Conf in Copenhagen I learnt that in Gradle it is possible to change the name of the wrapper and default build script. On his talk mrhaki showed us how we can confuse people that we are using Gradle instead of Maven :)

Thank you!

In this post I would like to show similar stuff but present Ant replacement.

Simple project

Let’s create a build.gradle with the following content:

task createMyOwnWrapper(type: Wrapper) {
    gradleVersion = '2.0'
    scriptFile = 'ant'
}

and run it:

gradle cMOW

It should create the following stucture:

.
├── ant
├── ant.bat
├── build.gradle
└── gradle
    └── wrapper
        ├── gradle-wrapper.jar
        └── gradle-wrapper.properties

Now, let’s create settings.gradle file with the following content:

rootProject.buildFileName = 'build.xml'

And that’s it. We can do the switch. When we call:

./ant tasks --all

It will display all available tasks:

:tasks

------------------------------------------------------------
All tasks runnable from root project
------------------------------------------------------------

Build Setup tasks
-----------------
init - Initializes a new Gradle build. [incubating]
wrapper - Generates Gradle wrapper files. [incubating]

Help tasks
----------
dependencies - Displays all dependencies declared in root project 'gradle-ant'.
dependencyInsight - Displays the insight into a specific dependency in root project 'gradle-ant'.
help - Displays a help message
projects - Displays the sub-projects of root project 'gradle-ant'.
properties - Displays the properties of root project 'gradle-ant'.
tasks - Displays the tasks runnable from root project 'gradle-ant'.

Other tasks
-----------
createMyOwnWrapper

BUILD SUCCESSFUL

Total time: 27.701 secs

We can tell our managers that we are still using Ant :)