I am trying to understand how to set a plugin convention property from a project property.

Here is the customPluginWithConvention example from the gradle distribution (gradle-0.9.2\samples\userguide\organizeBuildLogic\customPluginWithConvention\build.gradle)

apply plugin: GreetingPlugin

greeting = 'Hi from Gradle'

class GreetingPlugin implements Plugin<Project> {
def void apply(Project project) {
project.convention.plugins.greet = new GreetingPluginConvention()
project.task('hello') <<

}
}

class GreetingPluginConvention {
def String greeting = 'Hello from GreetingPlugin'
}

Running this script with no project property:

>gradle hello
:hello
Hi from Gradle

BUILD SUCCESSFUL

And now trying to set a custom message via setting a project property:

>gradle -Pgreeting=goodbye hello
:hello
Hello from GreetingPlugin

Instead of the expected "goodbye" the default greeting of the convention is shown. Is it possible to override the message?

<<Peter Niederwieser>>

Not yet, but we should try to make it possible. Please create an issue at http://jira.codehaus.org/browse/GRADLE.