Override property in build.gradle from the command line

Question

In build.gradle we can define variables like:

def libVersion=\'someVersion\'

We can override properties in command line with

Answer 1

Here's an example:

ext.greeting = project.hasProperty('greeting') ? project.getProperty('greeting') : 'hello'

task greet << {
    println greeting
}

If you run gradle greet, it will print hello.

If you run gradle -Pgreeting=welcome greet, it will print welcome.