Applying plugins from external script

Help/Discuss
1

Using version 3.1, I decided to split my build file with one file dedicated to pushing artifacts to artifactory. I created a new file artifactory.gradle and applying it from the main build file.

Am facing issues when I try to apply from: 'gradle-common/artifactory.gradle'. I understand that there is a known problem as described here.

My artifactory.gradle looks like
buildscript {
repositories {
maven {
url “https://plugins.gradle.org/m2”
}
}
}
apply plugin: org.jfrog.hudson.ArtifactoryPlugin
apply plugin: org.gradle.api.plugins.MavenPlugin

And I am getting an error
* Where:
Script ‘/Users/sseshac/src/JenkinsTrial/src/repo/gradle-common/artifactory.gradle’ line: 8

* What went wrong:
A problem occurred evaluating script.
> Could not get unknown property 'org' for root project 'api' of type org.gradle.api.Project.

Any help will be greatly appreciated.

2

You didn’t add the dependency to the plugin. So far you only have the repository. See the instructions on the plugin portal.

3

What would the dependency be for a core plugin like maven-publish ?

4

You don’t need a dependency for core plugins, they are already on the classpath. I thought the failure was because of the artifactory plugin.

5

Jumped the gun wrt core plugin.

But this is so inconvenient. I just am not able to locate the actual plugin class of artifactory plugin (The one I was using was a wrong plugin class). The source code of the plugin does not seem to be available anywhere, (So will be the case for numerous other plugin I suppose). I really hope Gradle team solves this known problem.

Any idea where the buildScript dependencies are downloaded ? So I can view the jar file and find out the class to use.

6

Somehow managed to find the plugin class. Now getting this error

* Where:
Script '/Users/sseshac/src/JenkinsTrial/src/repo/gradle-common/artifactory.gradle' line: 11

* What went wrong:
A problem occurred evaluating script.
> Failed to apply plugin [class 'org.jfrog.gradle.plugin.artifactory.ArtifactoryPlugin']
   > Cannot cast object 'org.jfrog.gradle.plugin.artifactory.dsl.ArtifactoryPluginConvention@3676cb79' with class 'org.jfrog.gradle.plugin.artifactory.dsl.ArtifactoryPluginConvention' to class 'org.jfrog.gradle.plugin.artifactory.dsl.ArtifactoryPluginConvention'
7

Apparently I had two plugin definitions for artifactory that caused the issue. Removing it from the main build.gradle made that error go away, but newer errors.

Caused by: org.gradle.internal.metaobject.AbstractDynamicObject$CustomMessageMissingMethodException: Could not find method publishing() for arguments [artifactory_c6jal2wkvlz8vpzljcferxcwm$_run_closure1@57575bf] on root project 'api' of type org.gradle.api.Project.
        at org.gradle.internal.metaobject.AbstractDynamicObject.methodMissingException(AbstractDynamicObject.java:182)
        at org.gradle.internal.metaobject.AbstractDynamicObject.invokeMethod(AbstractDynamicObject.java:167)

This even though I have applied Maven plugin within artifactory.gradle.
apply plugin: org.gradle.api.plugins.MavenPlugin
apply plugin: org.jfrog.gradle.plugin.artifactory.ArtifactoryPlugin

Error goes away when I do include maven-publish in my main build.gradle
plugins {
//id “com.jfrog.artifactory” version "4.0.0"
id "java"
id “maven-publish”
}

Am beginning to think, this was a bad idea to split build files this way and probably useful only when you have pure methods that you want to re-use in gradle files.

8

For Gradle core plugins you can just use their id. You script plugin is currently using the old maven plugin. You need to use maven-publish instead.

9

Thanks. that worked. I wish this workaround for a known issue is documented somewhere (or may be it is already)