brunch-config-no-work.js

exports.config = {
  files: {
    javascripts: {
      joinTo: "js/app.js"
    },
    stylesheets: {
      joinTo: "css/app.css"
    },
    templates: {
      joinTo: "js/app.js"
    }
  },

  conventions: {
    assets: /^(web\/static\/assets)/
  },

  paths: {
    watched: [
      "web/static",
      "test/static",
      "web/elm/SeatSaver.elm"                    // <-- with SeatSaver.elm
    ],

    public: "priv/static"
  },

  plugins: {
    elmBrunch: {
      elmFolder: 'web/elm',
      mainModules: ['SeatSaver.elm'],
      outputFolder: '../static/vendor'
    },
    babel: {
      ignore: [/web\/static\/vendor/]
    }
  },

  modules: {
    autoRequire: {
      "js/app.js": ["web/static/js/app"]
    }
  },

  npm: {
    enabled: true,
    whitelist: ["phoenix", "phoenix_html"]
  }
};

brunch-config-works.js

exports.config = {
  files: {
    javascripts: {
      joinTo: "js/app.js"
    },
    stylesheets: {
      joinTo: "css/app.css"
    },
    templates: {
      joinTo: "js/app.js"
    }
  },

  conventions: {
    assets: /^(web\/static\/assets)/
  },

  paths: {
    watched: [
      "web/static",
      "test/static"
    ],                                           // <-- without SeatSaver.elm

    public: "priv/static"
  },

  plugins: {
    elmBrunch: {
      elmFolder: 'web/elm',
      mainModules: ['SeatSaver.elm'],
      outputFolder: '../static/vendor'
    },
    babel: {
      ignore: [/web\/static\/vendor/]
    }
  },

  modules: {
    autoRequire: {
      "js/app.js": ["web/static/js/app"]
    }
  },

  npm: {
    enabled: true,
    whitelist: ["phoenix", "phoenix_html"]
  }
};

terminal

# with brunch-config-no-work.js

» brunch build                                                                                                                                                                                                               ⭠ master
Elm compile: SeatSaver.elm, in web/elm, to ../static/vendor/seatsaver.js
25 Jan 19:40:38 - error: undefined of web/elm/SeatSaver.elm failed. or: Cannot read property 'path' of undefined

~/src/unpushed/seat_saver
» la priv/static/js                                                                                                                                                                                                          ⭠ master
total 0
drwxr-xr-x  2 alan  staff   68 25 Jan 19:38 .
drwxr-xr-x  7 alan  staff  238 25 Jan 07:31 ..


# with brunch-config-works.js

» brunch build                                                                                                                                                                                                               ⭠ master
25 Jan 19:47:49 - info: compiled 6 files into 2 files, copied 3 in 875ms

» la priv/static/js                                                                                                                                                                                                          ⭠ master
total 1384
drwxr-xr-x  4 alan  staff     136 25 Jan 19:47 .
drwxr-xr-x  7 alan  staff     238 25 Jan 07:31 ..
-rw-r--r--  1 alan  staff  313805 25 Jan 19:47 app.js
-rw-r--r--  1 alan  staff  391967 25 Jan 19:47 app.js.map