Get value from `build.gradle` to code

Question

We have a build.gradle where the version is defined in it. I need to implement a version endpoint ( like /version) to get the version of the project. This version property in build.gradle has been there for a long time, I can't move it to the project.properties file. How can I access this version's values from my Java code?

Append the value you have in gradle to your properties file before the assemble task or include the version in the manifest file and read it using getResources — Boaz, Aug 03 '18 at 09:37

score 6 · Accepted Answer · answered Aug 03 '18 at 09:50

There are many ways with which you can "plant" information into your code

First you can use the manifest file, and read from it

jar {
  manifest {
    attributes(
      "lib-version": version
  }
}

With conjunction to Reading my own Jar's Manifest

The other option is to add that info the your property files before the jar task

task('addVersion') {
    doLast {
       //append the version here, see example
       file("src/main/resources/props.properties").append("version=$version")
    }
}
jar.dependsOn(addVersion)

score 1 · Answer 2 · answered Aug 03 '18 at 10:16

One of our project needs not only the version information but also build time etc. We use a copy task with template substitution.

task updateVersions(type: Copy) {
    Properties props = new Properties()
    props.load(new FileInputStream(file('build.properties')))
    props.put("buildtime", new Date().format("dd MMM yyyy hh:mm aa"))
    props.put("version", "${version}")
    from project(':main').file('Version.tmpl')
    into file('src/main/java').path
    expand(props)
    rename('Version.tmpl', 'Version.java')
}

Get value from `build.gradle` to code

2 Answers2