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From "ASF GitHub Bot (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (CB-11117) Preparing platforms should skip copying files which haven't changed
Date Wed, 04 May 2016 17:47:13 GMT

    [ https://issues.apache.org/jira/browse/CB-11117?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15271066#comment-15271066
] 

ASF GitHub Bot commented on CB-11117:
-------------------------------------

Github user codecov-io commented on the pull request:

    https://github.com/apache/cordova-ios/pull/220#issuecomment-216945466
  
    ## [Current coverage][cc-pull] is **51.81%**
    > Merging [#220][cc-pull] into [master][cc-base-branch] will decrease coverage by **-2.75%**
    
    ```diff
    @@             master       #220   diff @@
    ==========================================
      Files            11         11          
      Lines           821        882    +61   
      Methods         118        131    +13   
      Messages          0          0          
      Branches        138        143     +5   
    ==========================================
    + Hits            448        457     +9   
    - Misses          373        425    +52   
      Partials          0          0          
    ```
    
    
    
    > Powered by [Codecov](https://codecov.io?src=pr). Last updated by [f41737d...b8652a0][cc-compare]
    [cc-base-branch]: https://codecov.io/gh/apache/cordova-ios/branch/master?src=pr
    [cc-compare]: https://codecov.io/gh/apache/cordova-ios/compare/f41737d014b3621247d6d5283ebd81f0c6720c31...b8652a083d839bb19c6deb7bb2649a0652883a00
    [cc-pull]: https://codecov.io/gh/apache/cordova-ios/pull/220?src=pr


> Preparing platforms should skip copying files which haven't changed
> -------------------------------------------------------------------
>
>                 Key: CB-11117
>                 URL: https://issues.apache.org/jira/browse/CB-11117
>             Project: Apache Cordova
>          Issue Type: Improvement
>          Components: Android, iOS, Windows
>            Reporter: Jason Ginchereau
>            Assignee: Jason Ginchereau
>
> Many cordova CLI commands include a "prepare" operation, including 'cordova build', 'cordova
run', 'cordova plugin add', and more. Every time each of those commands runs, the target platform
is "prepared", which involves copying all files from the [<project>/www, <project>/platforms/<platform>/platform_www,
<project>/merges/<platform>] to the platform's target www folder, as well as copying
a bunch of icons and splash screens to platform-specific locations.
> For the very first prepare of a platform, all that file copying is necessary. But most
of the time after that most of the files being copied have not changed and therefore don't
really need to be copied again. So the typical developer inner loop (edit a few source files,
build and run the app, repeat) is a lot slower than it could be for a Cordova project, especially
one that includes a significant number of source files or resources.
> Instead, Cordova should be smart enough to skip copying of files that haven't changed,
based on their last-modified timestamp. (But also there should still be a way to force a clean/full/non-incremental
build if desired.)



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