Version increment using gradle task

Question

I want to increase the version number of my project from 1.0.0. to 1.0.1 automatically whenever a new build is made through bash command. I only need to increase path number and others i will be increasing manually during manual build.

i want to change

this :

version=1.0.0

to This:

version=1.0.1

using gradle task. any help that how can i do this . Is there any way to update this using regex or using substring function.

Answer 1

Here is an example task:

version='1.0.0'  //version we need to change

task increment<<{
    def v=buildFile.getText().find(version) //get this build file's text and extract the version value
    String minor=v.substring(v.lastIndexOf('.')+1) //get last digit
    int m=minor.toInteger()+1                      //increment
    String major=v.substring(0,v.length()-1)       //get the beginning
    //println m
    String s=buildFile.getText().replaceFirst("version='$version'","version='"+major+m+"'")
    //println s
    buildFile.setText(s) //replace the build file's text
}

Run this task several times and you should see the version change.

A variant:

version='1.0.0'

task incrementVersion<<{
    String minor=version.substring(version.lastIndexOf('.')+1)
    int m=minor.toInteger()+1
    String major=version.substring(0,version.length()-1)
    String s=buildFile.getText().replaceFirst("version='$version'","version='"+major+m+"'")
    buildFile.setText(s)
}