Brunch plugin to compile Elm code
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Brunch plugin to compile Elm code

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First, install Elm.

Then, install elm-brunch:

npm install --save-dev elm-brunch

Update the watched configuration in your brunch-config.js, e.g.:

paths: {
  watched: ["css", "js", "elm"]


  // Configure your plugins in brunch-config.js (or .coffee)
    plugins: {

      elmBrunch: {
        // (required) Set to the elm file(s) containing your "main" function `elm make` 
        //            handles all elm dependencies relative to `elmFolder`
        mainModules: ['source/path/YourMainModule.elm'],

        // (optional) Set to keep an independent elm-stuff folder per mainModule. If 
        //            mainModules is an array, then the 'source/path' of each mainModule 
        //            will be appended to your elm-folder, allowing each subfolder to keep their
        //            own set of elm dependencies.
        independentModules: true,

        // (optional) Set to path where `elm-make` is located, relative to `elmFolder`
        executablePath: '../../node_modules/elm/binwrappers',

        // (optional) Set to path where elm-package.json is located, defaults to project root
        //            if your elm files are not in /app then make sure to configure 
        //            paths.watched in main brunch config
        elmFolder: 'path/to/elm-files',

        // (optional) Defaults to 'js/' folder in paths.public
        // relative to `elmFolder`
        outputFolder: 'some/path/',

        // (optional) If specified, all mainModules will be compiled to a single file 
        //            This is merged with outputFolder.
        outputFile: 'elm.js',

        // (optional) add some parameters that are passed to elm-make
        makeParameters: ['--warn']

The output filename is the lowercase version of the main module name:

YourMainModule.elm => outputFolder/yourmainmodule.js

Note: You should update the "source-directories" property in the elm-package.json file if you want to compile multi-file elm projects. Then configure elm-brunch:


The following repos are examples of elm-brunch configuration: