How to set global variables in gradle.kts?

Question

My app uses several gradle.kts scripts. I want to set one variable which would be global for everyone.

object Versions{
   val kotlin_version = "1.3.60-eap-25"
}

but it is not resolved:

 classpath ("org.jetbrains.kotlin:kotlin-gradle-plugin:$Versions.kotlin_version")

Version class is not resolved or kotlin_version val? – Naruto Uzumaki Dec 10 '19 at 12:23 — Naruto Uzumaki, Dec 10 '19 at 12:23
Version class is not resolved – Nurseyit Tursunkulov Apr 30 '20 at 14:17 — Nurseyit Tursunkulov, Apr 30 '20 at 14:17
are you using curly brackets in your code? – elect Jun 03 '20 at 08:43 — elect, Jun 03 '20 at 08:43

score 8 · Answer 1 · answered Jun 03 '20 at 09:31

8

Declared them in gradle.properties file:

kotlin_version = 1.3.60-eap-25

And use it everywhere by findProperty("kotlin_version ")

answered Jun 03 '20 at 09:31

elect

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Thank you, but this does not work in plugins {} block :( – spyro Aug 05 '21 at 09:26
If you want there as well, use an `object` in `buildSrc` – elect Aug 05 '21 at 13:38

score 3 · Answer 2 · answered Apr 24 '22 at 21:49

in project level gradle the

ext.kotlin_version = '1.3.61'

Should just be:

val kotlinVersion by rootProject.extra { "1.3.61" }

And then you can access it by doing this:

implementation("org.jetbrains.kotlin:kotlin-stdlib-jdk7:${rootProject.extra.get("kotlinVersion")}")

in your app module

krevelen · Answer 3 · 2023-07-31T11:48:26.013

To have your property available in any build section (including the plugins) you can map it as a system property using the systemProp prefix in your gradle.properties file, like so:

systemProp.kotlinVersion = 1.9.0

and access it anywhere in your build.gradle.kts script(s), for example:

plugins {
    val kotlinVersion: String by System.getProperties()

    kotlin("android").version(kotlinVersion).apply(false)
}

For regular sections (e.g. dependencies) you may omit the systemProp. prefix and access the value specified in your gradle.properties (e.g. myVersion = 1.2.3) like so:

dependencies {
    val myVersion: String by project

    implementation("some.group:artifactId:$myVersion")
}

How to set global variables in gradle.kts?

3 Answers3