In an effort to prepare myself for potentially adding some Maven-based projects to our AntHill Pro system at work I grabbed the Apache Maven 2 Reference Card from Refcardz. It was a good overview but didn’t include some of the basics, like creating a basic project. Maven in 5 Minutes on the Maven web site proved more useful for that, as did the Guide to using Eclipse with Maven 2.x.
I used MacPorts to install Maven with the following:
sudo port install maven
I created a simple project using the following:
mvn archetype:create -DgroupId=org.spilth.rpgam -DartifactId=rpgam
And then tried to generate an Eclipse project file using:
cd rpgam
mvn eclipse:eclipse
The command failed with the following error in the output:
[WARNING] Unable to get resource ‘jline:jline:jar:0.9.1′ from repository central (http://repo1.maven.org/maven2): Specified destination directory cannot be created: /Users/brian/.m2/repository/jline/jline/0.9.1
It suggested I manually download and install jline. I was not down with this because, well, I thought Maven was supposed to take care of this stuff for me – I shouldn’t have to manually download and install stuff!
Upon looking in my ~/.m2/repository directory I noticed that some directories were owned by root and some by me. I’m not sure how or when this happened but I fixed it with the following:
sudo chown -R brian /Users/brian/.m2/
This fixed the problem and successfully created a .classpath and .project file for Eclipse.
I also started my own Maven cheat sheet.
Lastly, I learned that you an open a Finder window for the current directory from Terminal by using:
open .
