Should avoid modifying assembly if none of the underlying files have changed.
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Key: MASSEMBLY-115
URL: http://jira.codehaus.org/browse/MASSEMBLY-115
Project: Maven 2.x Assembly Plugin
Type: Improvement
Reporter: David Boden
At the moment, the assembly plugin always generates a the specified bundle, no
matter whether or not the files to be placed in the bundle are changed.
This means that any plugins downstream (e.g. you want to digitally sign the
bundle) behave as if a "clean" has taken place.
It would be better if the assembly plugin did not build a bundle if it is going
to be the same as what was produced during the last build. That way, the last
modified timestamp of the bundle won't get updated, and the downstream plugins
will know that nothing has changed.
Adding an assembly to a build currently slows down the iterative "install"
build very significantly because of this issue. Clean builds are not effected
by this issue, but effectively the assembly is forcing a clean build every time.
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