オフラインでソースを持っていく場合、assembly pluginが使えます。
$ mvn assembly:assembly -DdescriptorId=src
[INFO] Scanning for projects...
[INFO] Searching repository for plugin with prefix: 'assembly'.
[INFO] ------------------------------------------------------------------------
[INFO] Building sizeof
[INFO] task-segment: [assembly:assembly] (aggregator-style)
[INFO] ------------------------------------------------------------------------
[INFO] Preparing assembly:assembly
[INFO] ------------------------------------------------------------------------
[INFO] Building sizeof
[INFO] ------------------------------------------------------------------------
[INFO] [resources:resources {execution: default-resources}]
[WARNING] Using platform encoding (SJIS actually) to copy filtered resources, i.e. build is platform dependent!
[INFO] skip non existing resourceDirectory /Users/Documents/tmp/sizeof/src/main/resources
[INFO] [compiler:compile {execution: default-compile}]
[INFO] Nothing to compile - all classes are up to date
[INFO] [resources:testResources {execution: default-testResources}]
[WARNING] Using platform encoding (SJIS actually) to copy filtered resources, i.e. build is platform dependent!
[INFO] skip non existing resourceDirectory /Users/Documents/tmp/sizeof/src/test/resources
[INFO] [compiler:testCompile {execution: default-testCompile}]
[INFO] Nothing to compile - all classes are up to date
[INFO] [surefire:test {execution: default-test}]
[INFO] Surefire report directory: /Users/Documents/tmp/sizeof/target/surefire-reports
-------------------------------------------------------
T E S T S
-------------------------------------------------------
Running local.sa.AppTest
Tests run: 1, Failures: 0, Errors: 0, Skipped: 0, Time elapsed: 0.027 sec
Results :
Tests run: 1, Failures: 0, Errors: 0, Skipped: 0
[INFO] [jar:jar {execution: default-jar}]
[INFO] [assembly:assembly {execution: default-cli}]
[INFO] Building tar : /Users/Documents/tmp/sizeof/target/sizeof-1.0-SNAPSHOT-src.tar.gz
[INFO] Building tar : /Users/Documents/tmp/sizeof/target/sizeof-1.0-SNAPSHOT-src.tar.bz2
[INFO] Building zip: /Users/Documents/tmp/sizeof/target/sizeof-1.0-SNAPSHOT-src.zip
[INFO] ------------------------------------------------------------------------
[INFO] BUILD SUCCESSFUL
[INFO] ------------------------------------------------------------------------
[INFO] Total time: 5 seconds
[INFO] Finished at: Wed Jan 27 23:16:29 JST 2010
[INFO] Final Memory: 34M/79M
[INFO] ------------------------------------------------------------------------
$