What Does Transitive = True in Gradle Exactly Do (W.R.T. Crashlytics)

what's the meaning of @aar with transitive = true

If you use the ...@artifacttype notation in a Gradle dependency it means "only get me this artifact and no transitive dependencies". By additionally setting transitive = true, you are fetching the transitive dependencies despite that fact.

The first version gets the aar with dependencies and as far as I remember the second always gets the jar if one is present and else nothing but the dependencies. Add configurations.compile.each { println it } to output the actual files in the configuration and you should see the difference.

In the case of crashlytics there is no difference:

compile 'com.crashlytics.sdk.android:crashlytics:2.6.8'
/home/xan/.gradle/caches/modules-2/files-2.1/com.crashlytics.sdk.android/crashlytics/2.6.8/2f667ae0609d82045cbe602d38df3fbf2c9528dd/crashlytics-2.6.8.aar
/home/xan/.gradle/caches/modules-2/files-2.1/com.crashlytics.sdk.android/beta/1.2.5/f73d30657bb44ecb79d434a4ae3fb7d887371d84/beta-1.2.5.aar
/home/xan/.gradle/caches/modules-2/files-2.1/io.fabric.sdk.android/fabric/1.3.17/85fc9aae9009f6fb2beaf23fa0ce1ae13f124413/fabric-1.3.17.aar
/home/xan/.gradle/caches/modules-2/files-2.1/com.crashlytics.sdk.android/crashlytics-core/2.3.17/f3bed4c297be8d30dc5aa7f18b06dff75435bde4/crashlytics-core-2.3.17.aar
/home/xan/.gradle/caches/modules-2/files-2.1/com.crashlytics.sdk.android/answers/1.3.13/83dc1dd439c7da04ce9705f18037fe7551ae06bc/answers-1.3.13.aar

compile('com.crashlytics.sdk.android:crashlytics:2.6.8@aar') { transitive = true; }
/home/xan/.gradle/caches/modules-2/files-2.1/com.crashlytics.sdk.android/crashlytics/2.6.8/2f667ae0609d82045cbe602d38df3fbf2c9528dd/crashlytics-2.6.8.aar
/home/xan/.gradle/caches/modules-2/files-2.1/com.crashlytics.sdk.android/beta/1.2.5/f73d30657bb44ecb79d434a4ae3fb7d887371d84/beta-1.2.5.aar
/home/xan/.gradle/caches/modules-2/files-2.1/io.fabric.sdk.android/fabric/1.3.17/85fc9aae9009f6fb2beaf23fa0ce1ae13f124413/fabric-1.3.17.aar
/home/xan/.gradle/caches/modules-2/files-2.1/com.crashlytics.sdk.android/crashlytics-core/2.3.17/f3bed4c297be8d30dc5aa7f18b06dff75435bde4/crashlytics-core-2.3.17.aar
/home/xan/.gradle/caches/modules-2/files-2.1/com.crashlytics.sdk.android/answers/1.3.13/83dc1dd439c7da04ce9705f18037fe7551ae06bc/answers-1.3.13.aar

How to set transitive = true for local .aar library?

It is not possible to download transitive dependencies with a local aar file.

This file does not contains a pom.xml which reference all dependencies linked to this library, so adding transitive = true will do simply nothing.

If Cuckoo library is not hosted in a Maven repository, I'm afraid you will be obliged to load them manually in your build.gradle.

Transitive dependencies not resolved for aar library using gradle

I have solved my problem by setting transitive attribute for my aar dependency:

compile ('com.somepackage:LIBRARY_NAME:1.0.0@aar'){
    transitive=true
}

Identifying the transitive dependency including a specific library - Gradle

You can use gradle dependencyInsight --dependency org.hibernate:hibernate-core to see details for given dependency.

Gradle doesn't download transitive dependencies from local jar

If you are hosting the jars in a local folder you will need to adhere to the Maven repository directory conventions and store the pom alongside the jar. Neither gradle nor maven will read a pom.xml zipped inside the META-INF directory of a jar

Eg:

$projectDir/local-repo/com/foo/bar/1.0/bar-1.0.jar
$projectDir/local-repo/com/foo/bar/1.0/bar-1.0.pom

build.gradle

repositories {
    maven {
        url = file('local-repo')
    }
}
dependencies {
    compile 'com.foo:bar:1.0'
}