• Jacob Schatz's avatar
    Merge branch... · abb1a595
    Jacob Schatz authored
    Merge branch '3225-ace-editor-causing-404-errors-every-time-you-try-to-edit-a-file-in-the-webui' into 'master'
    
    Fix Ace syntax highlighting with compiled assets
    
    ## What does this MR do?
    
    Update ACE to 4.1.0 to allow modes (syntax highlighting files for particular languages) to be lazily loaded.
    
    ## Are there points in the code the reviewer needs to double check?
    
    Don't think so.
    
    ## Why was this MR needed?
    
    Syntax highlighting in the file editor only worked in development and test modes, not in production!
    
    ## What are the relevant issue numbers?
    
    Closes #3225.
    
    ## Screenshots (if relevant)
    
    First, the test setup - add these lines to `development.rb`:
    ```ruby
      config.assets.debug = false
      config.assets.compile = false
      config.assets.digest = true
    ```
    
    Then, before starting the server, run `bundle exec rake assets:clobber assets:precompile`.
    
    Before:
    
    ![image](/uploads/486198e273019f8969d2e90560d82928/image.png)
    
    There is an error in the console because `/assets/ace/mode-ruby.js` was not found (it's only available when assets are compiled on demand).
    
    After:
    
    ![image](/uploads/6aa0d69b7efdfd6fe6aa22b9a49e9716/image.png)
    
    This loads `/assets/ace/mode-ruby-3915f95a6cc47306b1305e4dcb7aca25b2ef9c49b18ec6011707135b6575d8f3.js`, which works because the precompile step included it and told ACE where to find it.
    
    ## Does this MR meet the acceptance criteria?
    
    - [x] [CHANGELOG](https://gitlab.com/gitlab-org/gitlab-ce/blob/master/CHANGELOG) entry added
    - ~~[Documentation created/updated](https://gitlab.com/gitlab-org/gitlab-ce/blob/master/doc/development/doc_styleguide.md)~~
    - ~~API support added~~
    - Tests
      - ~~Added for this feature/bug~~
      - [x] All builds are passing
    - [x] Conform by the [style guides](https://gitlab.com/gitlab-org/gitlab-ce/blob/master/CONTRIBUTING.md#style-guides)
    - [x] Branch has no merge conflicts with `master` (if you do - rebase it please)
    - [x] [Squashed related commits together](https://git-scm.com/book/en/Git-Tools-Rewriting-History#Squashing-Commits)
    
    See merge request !5501
    abb1a595
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