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Auto increment versioncode versions only

I am currently trying to improve our buildscript by automatically incrementing the version code so that our QA team understands which build they are testing and can log in with a specific version code. We have 3 productFlavors (stage, qa, production) and 2 signature configs (debug, release).

I have looked at different solutions:

How to auto-increment version Code in Android Gradle

How to auto-increment version Code in Android Gradle

Autoincrement VersionCode with additional gradle properties

Based on these answers, I built a code version increment using the version.properties file.

Now the problem is that for EVERY combination of productFlavor and SigningConfig (+ gradle sync in android studio) new version code is generated. I want the version code to increment every time I hit the play button to create the qaRelease assembly. So our construction cycle will be:

  • development (never change version code)
  • qual (Update version code)
  • production (never change version code)
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2 answers


You can try something like this

import java.util.regex.Pattern    
task('increaseVersionCode') << {

    ... // You could code in your increment system, for eg

    // Using build.gradle (recommended)
    def buildFile = file("build.gradle")
    def pattern = Pattern.compile("versionCode\\s+(\\d+)")
    def manifestText = buildFile.getText()
    def matcher = pattern.matcher(manifestText)
    matcher.find()
    def versionCode = Integer.parseInt(matcher.group(1))
    def manifestContent = matcher.replaceAll("versionCode " + ++versionCode)
    buildFile.write(manifestContent)


    // Using manifest
    def manifestFile = file('AndroidManifest.xml')
    def matcher = Pattern.compile('versionCode=\"(\\d+)\"')
    .matcher(manifestFile.getText())
    matcher.find()
    def manifestContent = matcher.replaceAll('versionCode=\"' +
    ++Integer.parseInt(matcher.group(1)) + '\"')
    manifestFile.write(manifestContent)
}



tasks.whenTaskAdded { task ->
    if (task.name == 'assembleQaRelease') {
        task.dependsOn 'increaseVersionCode'
    }
}


You can adapt 'assembleQaRelease' to expand the version code to the required task.

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How I solved it:

  • I created a version.properties file in the root of my Android project and added the version code to it.

  • Then I created a method called getCurrentVersionCode () in the build.gradle file that reads the current version code.

code:



def getCurrentVersionCode() {
    def versionPropsFile = file('version.properties')
    def Properties versionProps = new Properties()

    versionProps.load(new FileInputStream(versionPropsFile))

    return versionProps['version_code'].toInteger()
}

I also created a method to generate new code:

code:



// http://stackoverflow.com/questions/30523393/auto-increment-versioncode-only-on-releases
//
def setUpdatedVersionCode() {
    def versionPropsFile = file('version.properties')
    def Properties versionProps = new Properties()

    def code = getCurrentVersionCode() + 1

    versionProps['version_code'] = code.toString()
    versionProps['version_name'] = generateVersionName()

    versionProps.store(versionPropsFile.newWriter(), null)
}

and then I created a task that starts the QA build.

code:



task('increaseVersionCode') << {
    setUpdatedVersionCode()
}

tasks.whenTaskAdded { task ->
    if (task.name == 'assembleQaRelease') {
        task.dependsOn 'increaseVersionCode'
    }
}

This way it keeps the version code in a separate file so I don't have to edit the build.gradle file.

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