deployment - How to perform Delta-Build -

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i creating ant script in essence make delta-build. instead of deleting initial directory , creating new directory, updating new contents, goal have script checks directory, , update materials not have, updating label.

does see way of accomplishing this? i've researched hours , can't find can steer in direction.

these should started.

http://ant.apache.org/manual/tasks/uptodate.html

http://www.catalysoft.com/articles/antuptodate.html

ant - uptodate task : regenerate outdated files


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