gradle在不相关的项目之间共享属性

Question

I am having a file common.gradle which has common properties

def custom = [
status: 'SNAPSHOT',
group: 'com.custom.proj',
version: [
    core: '1.2.0.0',
    modle: '1.2.0.0',
    base: '1.2.0.0' 
    ]
]

and using it in build.gradle

apply from: 'file:///E:/gradle/common.gradle'

task props << {
    println "group" + custom.group
}

and when i run gradle props getting below error

What went wrong: Execution failed for task ':props'. Could not find property 'custom' on task ':props'.

Try: Run with --stacktrace option to get the stack trace. Run with --info or --debug option to get more log output.

Answer 1

def custom = declares a local variable, which won't be visible outside commons.gradle . Instead, you can declare an extra property on the Project object:

ext.custom = ... // shorthand for `project.ext.custom = ...`

The usage will remain the same (eg custom.group , not ext.custom.group ).

If you want to share custom among all build scripts in the same (multi-project) build, it's good enough to apply commons.gradle to the root project, as project properties are inherited from parent to child projects.