[CAMEL-19466] Skip Maven mojos in the fast profile properly

• Type: Improvement
• Status: Resolved
• Priority: Major
• Resolution: Fixed
• Fix Version/s: 4.0-RC2, 4.0.0
• Component/s: build system
• Estimated Complexity: Unknown
• Assignee: Peter Palaga
• Reporter: Peter Palaga
• Created: 17/Jun/23 10:06
• Updated: 14/Jul/23 17:52
• Resolved: 14/Jul/23 17:52

Description

The current fastinstall profile works with skip properties of the mojos that are supposed to be skipped. This works and brings substantial speedups, but there is more that can be done:

When skipping a mojo by passing the skip property, the plugin jar and all its dependencies still need to be downloaded, opened, an isolated mojo classloader has to be set up, all required classes have to be loaded and the mojo.execute() method needs to be invoked...
... only to find out that the skip property is true and that the mojo does not need to be run at all.

There is a trick explained in https://peter.palaga.org/2020/10/29/skipping-maven-mojos-properly.html that allows to skip even downloading the mojos and loading any its classes. In short, the idea is to have a "full" profile that contains all those test and formatting mojos. It is activated by negated "!quickly" property, so that invoking mvn without -Dquickly makes the profile active and passing -Dquickly makes inactive. This has saved some 30 seconds compared to using skip properties in Camel Quarkus.