[MPH-29] help:describe should be way more helpful when no arguments are provided

• Type: Improvement
• Status: Closed
• Priority: Major
• Resolution: Fixed
• Fix Version/s: 2.1
• Assignee: Siveton Vincent
• Reporter: Daniel Fabulich
• Created: 04/Feb/08 16:55
• Updated: 06/Aug/08 06:02
• Resolved: 06/Aug/08 06:02

Description

Right now if you "mvn help:describe" with no further arguments you get an error: "You must either specify 'groupId' and 'artifactId', or a valid 'plugin' parameter."

The people who are using help:describe don't necessarily know how help:describe works yet; if they did, they might be clever enough to use "mvn help:describe -Dplugin=help -Dmojo=describe" to figure out how help:describe works.

This error message should be more like a paragraph long, and should include valid working examples. It could be copied from the apt doc for the help plugin.