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From "Knut Anders Hatlen (Created) (JIRA)" <j...@apache.org>
Subject [jira] [Created] (DERBY-5478) Speed up creation of bin scripts
Date Tue, 25 Oct 2011 08:20:32 GMT
Speed up creation of bin scripts
--------------------------------

                 Key: DERBY-5478
                 URL: https://issues.apache.org/jira/browse/DERBY-5478
             Project: Derby
          Issue Type: Improvement
          Components: Build tools
    Affects Versions: 10.9.0.0
            Reporter: Knut Anders Hatlen
            Assignee: Knut Anders Hatlen
            Priority: Minor


The binscripts build target takes around 3 seconds in the environments I use for building
Derby. It looks like most of the time is spent running the chmod Ant task on the generated
scripts. There are six invocations of the chmod task, one for each script. The chmod task
can operate on multiple files, so one invocation should be enough (and one invocation on six
files seems to have about the same cost as one invocation on a single file).

A related problem is that the scripts are always regenerated in incremental builds, even when
there's nothing to do, so the binscripts target accounts for a significant part of the time
it takes to run an incremental build.

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