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https://issues.apache.org/jira/browse/CB-11117?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15274317#comment-15274317
 ] 

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

Github user codecov-io commented on the pull request:

    https://github.com/apache/cordova-windows/pull/174#issuecomment-217492514
  
    ## [Current coverage][cc-pull] is **71.20%**
    > Merging [#174][cc-pull] into [master][cc-base-branch] will decrease 
coverage by **-2.21%**
    
    ```diff
    @@             master       #174   diff @@
    ==========================================
      Files            14         14          
      Lines          1862       1889    +27   
      Methods         342        347     +5   
      Messages          0          0          
      Branches        379        382     +3   
    ==========================================
    - Hits           1367       1345    -22   
    - Misses          495        544    +49   
      Partials          0          0          
    ```
    
    1. File `...rdova/lib/prepare.js` was modified. 
[more](https://codecov.io/gh/apache/cordova-windows/commit/d0bf546465eb1dbec07bfcd8d60b5b6ba71ed790/changes?src=pr#74656D706C6174652F636F72646F76612F6C69622F707265706172652E6A73)
 
      - Misses `+6` 
      - Partials `0` 
      - Hits `-6`
    
    
    > Powered by [Codecov](https://codecov.io?src=pr). Last updated by 
[b8b636c...d0bf546][cc-compare]
    [cc-base-branch]: 
https://codecov.io/gh/apache/cordova-windows/branch/master?src=pr
    [cc-compare]: 
https://codecov.io/gh/apache/cordova-windows/compare/b8b636cd097c8cf40e1313075ef5195cdcf247f8...d0bf546465eb1dbec07bfcd8d60b5b6ba71ed790
    [cc-pull]: https://codecov.io/gh/apache/cordova-windows/pull/174?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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