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From "Jason Ginchereau (JIRA)" <j...@apache.org>
Subject [jira] [Created] (CB-11022) Adding plugins prepares platforms, which is redunant and slow
Date Tue, 05 Apr 2016 22:21:25 GMT
Jason Ginchereau created CB-11022:
-------------------------------------

             Summary: Adding plugins prepares platforms, which is redunant and slow
                 Key: CB-11022
                 URL: https://issues.apache.org/jira/browse/CB-11022
             Project: Apache Cordova
          Issue Type: Bug
          Components: CordovaLib
            Reporter: Jason Ginchereau


For CB-9617, a change was made to automatically do a 'cordova prepare' operation after adding
every plugin. As part of the prepare, all the files from the project's www directory are re-copied
into the platform_www directory. For a large project with lots of source files, images, and
other resources, this copy operation is potentially time-consuming. And it is redundant and
unnecessary when adding a plugin, because those files do not need to be changed when adding
a plugin.

For a large project with many plugins, this slow redundant operation is repeated for every
plugin, making the first-time build (installing all the plugins) take a very long time. As
an extreme case, a customer reported their large project (35 plugins, ~150 MB in www) takes
about 2 hours to build the first time. Most of that time is spent repeatedly preparing the
platforms after adding each plugin. The log line that appears to be slow says it is "Generating
config.xml from defaults for platform <platform>", but what it is actually doing is
redundantly copying lots of files from www.

This issue can also be observed at a smaller scale when building the Cordova mobilespec project,
which contains tests for all the core plugins. 



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