Increment versionCode task

versionCode.gradle

task('incrementVersionCode') << {
    def versionCode = Integer.parseInt(VERSION_CODE) + 1
    ant.propertyfile(file: "../gradle.properties") {
        entry(key: "VERSION_CODE", value: versionCode)
    }
}

tasks.whenTaskAdded { task ->
    if (task.name == 'assembleRelease') {
        task.dependsOn 'incrementVersionCode'
    }
}

1. Add this file into: ~/rnProject/android/app/versionCode.gradle
2. Open android/app/build.gradle and apply the following changes:

Apply the versionCode task at the top of the file.

apply from: './versionCode.gradle'

Replace the versionCode line with:

versionCode Integer.parseInt(VERSION_CODE)

Adding the above throws me the following error while using react-native run-android

The Task.leftShift(Closure) method has been deprecated and is scheduled to be removed in Gradle 5.0. Please use Task.doLast(Action) instead.
        at versionCode_28teg2njsm044c6acdk9jjd0h.run(XXXXXX/android/app/versionCode.gradle:1)

FAILURE: Build failed with an exception.

well, simply replace as it states:

task('incrementVersionCode').doLast {
 // …
}

I tried that and the warning is gone, but I haven't checked the release version bump still works yet.

Update to this Gist since now I used it in a different way.

The versionCode.gradle remains the same, but now I do not use a whenTaskAdded hook, instead I fire this gradle task through Fastlane

 gradle(task: 'incrementVersionCode', project_dir: 'android/')

task('incrementVersionCode') << {
    def versionCode = Integer.parseInt(VERSION_CODE) + 1
    ant.propertyfile(file: "../gradle.properties") {
        entry(key: "VERSION_CODE", value: versionCode)
    }
}

Where should I put the VERSION_CODE variable?

Where should I put the VERSION_CODE variable?

You'll want to put that in gradle.properties. (At least that's what I did and got it working - can't claim to be a gradle guru at this point, so perhaps Carlos had some other idea in mind, but my understanding is that any variables in gradle.properties are available for you to use in build.gradle.

I was wanting to both increment my build number AND update my version number. In my case I'm going to pass the new version number in as a parameter, so I've done this:

sample fastlane call: fastlane update_android_versions newVersion:5.2.8 (newVersion passed as parameter)

fastfile:

desc "Update Android version numbers"
lane :update_android_versions do |options|
    # Android update version numbers
    gradle(
        task: "updateVersion",
        project_dir: "./android",
        properties: { "version_number" => options[:newVersion] }
    )
end

This ends up creating a call like this: bla bla path.../android/gradlew updateVersion -p ./android -Pversion_number=5.2.8

gradle.properties:

VERSION_CODE=23  # (gets changed to 24)
VERSION_NAME=3.0.6  # (gets changed to 5.2.8)

updateVersion.gradle:

task('updateVersion') << {
    def versionCode = Integer.parseInt(VERSION_CODE) + 1
    def versionName = version_number
    ant.propertyfile(file: "../gradle.properties") {
        entry(key: "VERSION_CODE", value: versionCode)
        entry(key: "VERSION_NAME", value: versionName)
    }
}

build.gradle:

versionCode Integer.parseInt(VERSION_CODE)
versionName VERSION_NAME

In my case, I just placed the task at the bottom of the build.gradle file.

build.gradle

...

android {
    ...

    defaultConfig {
        ...
        versionCode Integer.parseInt(VERSION_CODE)
        ...
    }

    ...
}

...

task('incrementVersionCode') << {
    def versionCode = Integer.parseInt(VERSION_CODE) + 1
    ant.propertyfile(file: "../gradle.properties") {
        entry(key: "VERSION_CODE", value: versionCode)
    }
}

gradle.properties

...
VERSION_CODE=1 # this will get updated

Fastfile

...

gradle(
  task: "incrementVersionCode",
  project_dir: "android/"
)

git_commit(
  path: "android/gradle.properties",
  message: "Version Bump"
)
...

---

Thanks all!

Update: July 2019

">>" is deprecated and removed and the following syntax is favored for versionCode.gradle:

1. Create a new file called versionCode.gradle in android/app with the code below

task('incrementVersionCode') {
    description= "Increments Version Code"
    doLast {
        def versionCode = Integer.parseInt(VERSION_CODE) + 1
        ant.propertyfile(file: "../gradle.properties") {
            entry(key: "VERSION_CODE", value: versionCode)
        }
    }
}

2. Open android/app/build.gradle and add the following line: apply from: './versionCode.gradle'

Replace the versionCode line under default config in your app's build.gradle with:

    defaultConfig {
        ...
        versionCode 1  # Replace with versionCode Integer.parseInt(VERSION_CODE)
        ...
    }

3. Add VERSION_CODE=1 to your gradle.properties file.
4. Build