Question

Got a following build.xml string:

<jar destfile="${lib.dir}/rpt.jar" basedir="${classes.src}" excludes="**/*.java" />

I am new to Ant and i don’t understand how excludes string works. What files are affected? All java source files?

Thanks.

Answer 1

First about the statement

<jar destfile="${lib.dir}/rpt.jar" basedir="${classes.src}" excludes="**/*.java" />

this target is used to package your files inside a jar archive

destfile : specifies the name and location of the destination file, the archive that would be created

basedir : specifies the base directory of the files that needed to be packaged. note that all files and subfolders would be included

excludes : this is used to exclude files from basedir that you dont need inside your package (jar)

Now to your question

what the above statement would do is that it will package all the files inside classes.src to $(lib.dir)/rpt.jar but will exclude any .java files found at or inside any sub folder of basedir.

EDIT :
This exclude=”*/.java” is generally done to exclude source code form the jar which would be used, distributed,exported etc