Gradle goodness:changing Name of the Default Build File

Gradle uses the name as the build.gradle default name for a build file. If We write our build code in a file then we do not have the build.gradle "to specify" the build filename when we run the tasks. We can create build files with a different name other than build.gradle . For example we can define our build logic in a file sample.gradle . To run the tasks from this build file we can use the command line option -b or --build-file followed by the file name. But we can also change the project settings and set a new default build file name to our project. With the changed project settings we don't have the command line options -b or --build-file .

Suppose we have the following build file with the name sample.gradle :

View Sourceprint? 0. // File: sample.gradle 1. task sample(description: ‘Sample task‘ ) << { 2. println ‘Sample task‘ 3. } 4.  5. defaultTasks ‘sample‘

To run the sample task from the command line we can use the command line options -b or --build-file :

$ gradle -b sample.gradle :sample Sample task  BUILD SUCCESSFUL  Total time: 3.168 secs $ gradle --build-file sample.gradle :sample Sample task  BUILD SUCCESSFUL  Total time: 2.148 secs $

To change the default build of file name for our project we create a file with our settings.gradle project. Inside The settings.gradle file we can change the property buildFileName for rootProject :

View Sourceprint? 0. // File: settings.gradle 1. // Change default build file name for this project. 2. rootProject.buildFileName = ‘sample.gradle‘

Now we execute the tasks from sample.gradle without the options -b or --build-file :

$ gradle :sample Sample task  BUILD SUCCESSFUL  Total time: 3.312 secs $

Code written with Gradle 2.1.

Gradle goodness:changing Name of the Default Build File