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🍃 Create Elm apps with zero configuration

License: MIT License

JavaScript 97.08% Elm 1.45% HTML 0.85% CSS 0.62%

elm webpack elm-platform boilerplate cli build-tool zero-configuration scaffolding hmr

create-elm-app's Introduction

Create Elm App

Create Elm apps with no build configuration.

Getting Started – How to create a new app.
User Guide – How to develop apps bootstrapped with Create Elm App.
Elm SPA example - Using Create Elm App Elm in SPA example by Richard Feldman.

Quickstart

npm install create-elm-app -g
create-elm-app my-app
cd my-app/
elm-app start

Create a production build with elm-app build

Getting Started

Installation

Node >=8 is required for installation.

Yarn

yarn global add create-elm-app

NPM

npm install create-elm-app -g

If you are running Linux OS, you should install it as the superuser:

sudo npm install create-elm-app -g

Creating an App

To create a new app, run:

create-elm-app my-app
cd my-app/

Create a new my-app folder with files for your future project.

my-app/
├── .gitignore
├── README.md
├── elm.json
├── elm-stuff
├── public
│   ├── favicon.ico
│   ├── index.html
│   ├── logo.svg
│   └── manifest.json
├── src
│   ├── Main.elm
│   ├── index.js
│   ├── main.css
│   └── serviceWorker.js
└── tests
    └── Tests.elm

You are ready to employ the full power of Create Elm App!

`elm-app start`

Run the app in development mode. Open http://localhost:3000 to view it in the browser.

The page will reload if you make edits. You will see the build errors and lint warnings in the console and the browser window.

`elm-app build`

Builds the app for production to the build folder. It bundles Elm app and optimizes the build for the best performance.

The build is minified, and the filenames include the hashes.

Guide

Every generated project will contain a readme with guidelines for future development. The latest version is available here

Why use this?

Developing with Elm is fun and easy, but at some point, you will hit a couple of limitations.

elm-make has a limited support for working with JavaScript and CSS.
elm-reactor does not work with apps that rely on ports.
You can not use Hot Module Replacement.

Create Elm App adds a tool for optimizing production builds and running a development server with your app, which supports HMR.

All of that, combined with all the functionality of elm in a single command line tool, which you might use as a dependency or eject anytime.

Want a custom setup?

Not happy with the default configuration? Use elm-app eject and customize your process.

That way, you can use Create Elm App as a tool for a boilerplate generation.

Philosophy

Inspired by create-react-app

One Dependency: There is just one build dependency. It uses Elm Platform, Webpack, and other amazing projects, but provides a cohesive curated experience on top of them.
Zero Configuration: No configuration files or command line options required to start working with Elm. Configuring both development and production builds is handled for you so you can focus on writing code.
No Lock-In: You can “eject” to a custom setup at any time. Run a single command, and all the configuration and build dependencies will be moved directly into your project, so you can pick up right where you left off.

What is inside

The tools used by Create Elm App are subject to change. Currently it is a thin layer on top of many amazing community projects, such as:

elm
elm-test
webpack with webpack-dev-server, html-webpack-plugin and style-loader
Babel with ES6
Autoprefixer
and others.

All of them are transitive dependencies of the provided npm package.

Contributing

We would love to get you involved! Please check our Contributing Guide to get started!

Alternatives

create-elm-app's People

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Watchers

Forkers

tritowntim zivoslav joakin benbrandt fuser002 jackfranklin cortlandd fobos kraklin eezis travelrepublic lodin adamdicarlo arnarthor gyzerok anilreddykatta shuhei joshua1 poignant-wit mazechazer stil4m optikfluffel mbylstra tzemanovic johnniewalkerde andys8 5555482 hipertracker almagic iiska drager kai0masanari screendriver leifg ca057 klazuka bloom charles-achilefu patrickdet howmuchcomputer gogocurtis cdaringe jinjor littlestudent gamb cllns xtian bigos dcecile jgautsch gaumala yormi clojj bernardoow thitemple lucca65 eprparadocs benthomasveeva imamsantosa littlelotta dmoralestech massirim shi3osi123456 mikegeenacker aiya000 maxbeizer ropwarejb juliusrajala halcwb opsb accordeiro bazzargh chrisbuttery emptyflash mojila kurtharriger ben52 wscherphof 1602 megamisoh matthijsl anagrius frpaulas tmikeschu huntwj touitou megalithic mrmovl ambiso monsieurman jluckyiv hhy5277 mjroney nicolasgargano olpeh thepassle xtrakrispi runarfu janwirth vanrobermore

create-elm-app's Issues

Add elm-html-test

Add eeue56/elm-html-test for testing view testing.

Provide guidelines or examples for testing view functions.

Trying to run create-elm-app on Linux Mint

I recently switched from Win7 to Linux Mint (18) and now keep running into strange errors

Firstly, create-elm-app creates proper folder structure, but doesn't download any packages (nor does it create elm-package.json file)

If I then use elm package install by hand, everything loads as expected. However, on elm-app start (and other commands too) I get following error:

Compilation failed.

./src/Main.elm
Module build failed: Error: Compiler process exited with error Compilation failed
events.js:141
      throw er; // Unhandled 'error' event
      ^

Error: spawn /usr/lib/node_modules/create-elm-app/node_modules/elm/Elm-Platform/0.17.1/.cabal-sandbox/bin/elm-make ENOENT
    at exports._errnoException (util.js:907:11)
    at Process.ChildProcess._handle.onexit (internal/child_process.js:178:32)
    at onErrorNT (internal/child_process.js:344:16)
    at nextTickCallbackWith2Args (node.js:442:9)
    at process._tickCallback (node.js:356:17)
    at Function.Module.runMain (module.js:443:11)
    at startup (node.js:139:18)
    at node.js:974:3

    at ChildProcess.<anonymous> (/usr/lib/node_modules/create-elm-app/node_modules/elm-webpack-loader/node_modules/node-elm-compiler/index.js:224:27)
    at emitTwo (events.js:87:13)
    at ChildProcess.emit (events.js:172:7)
    at maybeClose (internal/child_process.js:829:16)
    at Socket.<anonymous> (internal/child_process.js:319:11)
    at emitOne (events.js:77:13)
    at Socket.emit (events.js:169:7)
    at Pipe._onclose (net.js:486:12)
 @ ./src/index.js 3:10-31

I noticed that /usr/lib/node_modules/create-elm-app/node_modules/elm folder doesn't actually contain Elm-Platform. I don't know if it's more nodejs+linux than create-elm-app problem. Maybe someone will have an idea how to fix this?
Just for reference
node: 4.6.0
npm: 2.15.9

Document how to use npm JS libraries

Hi!

First, this is an awesome tool, thanks a lot ❤️

Given this uses webpack it is very easy to use browser libraries in the JS files.

Maybe it would be useful to show how to use npm libraries for your JS code:

Example:

# Add package.json
npm init -y
# Install library from npm
npm install --save-dev xtend
# Use xtend in your JS code

var xtend = require('xtend')
console.log(
  xtend({a: 1}, {b: 2}, {a: 3, c: 4})
)

Maybe after https://github.com/halfzebra/create-elm-app/blob/master/template/README.md#installing-elm-packages in a section titled Installing npm JS libraries

Would you be interested in a PR?

Thanks again for your work on this.

`npm test` runs globally installed package instead of local

I have globally installed previous version (0.1.6) of package.
Just have cloned repo with latest source. Have installed all packages.

Trying to run tests via npm test. Tests failed:

  Test command line interface functionality
    CLI accessibility
      ✓ `create-elm-app` command should be available (156ms)
      ✓ `elm-app` command should be available (130ms)
      ✓ `elm-app package` command should be available (150ms)
    Create Elm application with `create-elm-app` command
      ✓ `create-elm-app test-app` should succeed (1368ms)
      ✓ `test-app` should have elm-package.json file
      ✓ `test-app` should have .gitignore file
      1) `test-app` should have the same file structure as template
    Building Elm application with `elm-app build`
      ✓ `elm-app build` should succeed in `test-app` (4677ms)
    Ejecting Elm application
      ✓ `elm-app eject` should succeed in `test-app` (45405ms)
      ✓ Ejected application should have `package.json` with scripts from Create Elm App
      ✓ Ejected application should have build and start scripts
      ✓ Ejected application should have the config available
      ✓ It should be possible to build ejected applitaction, using npm scripts (7655ms)

In test code I see next line var status = spawn.sync('create-elm-app', [ testAppName ]).status;
It's give me idea that code tries to run globally installed package.

P.S. As I understand, 0.1.6 setups dist folder by running create-elm-app command while 0.1.8 doesn't.

Add more practical information to User Guide

The User Guide must give practical advice on:

Further development;
Deployment (GitHub Pages, Heroku);
Ejecting, and evolving the build.

Set up testing by default

We could use elm-test to set up some basic testing by default. WDYT? I'm happy to work on a PR if you like the idea :)

Update to Webpack 2

It's in beta but very stable - I've used it on numerous projects and not had issues; and it's not a huge amount of change.

Would you be happy with a PR if I found the time to make it? :)

Publishing with gh-pages

It would be nice to have a simple workflow for publishing an app with gh-pages

Maybe this could be automated as a script for elm-app.

Replace file-loader with url-loader

Url loader enables us to encode small files in base64

Not working with yarn

When trying to install as a global dependency with yarn package do not work

$ elm-app --help
module.js:327
    throw err;
    ^

Error: Cannot find module '../node_modules/elm/package.json'
    at Function.Module._resolveFilename (module.js:325:15)
    at Function.Module._load (module.js:276:25)
    at Module.require (module.js:353:17)
    at require (internal/module.js:12:17)
    at Object.<anonymous> (/Users/fnez/.config/yarn/global/node_modules/create-elm-app/bin/elm-app-cli.js:9:28)
    at Module._compile (module.js:409:26)
    at Object.Module._extensions..js (module.js:416:10)
    at Module.load (module.js:343:32)
    at Function.Module._load (module.js:300:12)
    at Function.Module.runMain (module.js:441:10)

Use yarn for installing modules

Add CONTRIBUTING.md

Since now we have automated semantic release, it would be great to establish some guidelines for contributing.

.env not working

It looks like environment variables are not being picked up by webpack in version 0.2.2. This feature has been recently added, closely following the implementation of the identical create-react-app feature: 55cff7d.

Steps to reproduce

create-elm-app testapp
cd testapp
touch .env
add TESTVAR=somevalue to .env
add console.log(process.env.TESTVAR); in ./src/index.js
elm-app start

This is supposed to log 'somevalue', but instead logs undefined.

Missing Dependency `react-dev-utils` (?)

Just installed latest 0.1.7.

Windows 10,
node.js 7.0.0
npm 3.10.8

Created the app and tried to run with elm-app start.

Got the following exception:

D:\Projects\Elm\my-app>elm-app start
module.js:474
    throw err;
    ^

Error: Cannot find module 'react-dev-utils/webpackHotDevClient'
    at Function.Module._resolveFilename (module.js:472:15)
    at Function.resolve (internal/module.js:27:19)
    at Object.<anonymous> (C:\Users\Me\AppData\Roaming\npm\node_modules\create-elm-app\config\webpack.config.dev.js:13:13)
    at Module._compile (module.js:573:32)
    at Object.Module._extensions..js (module.js:582:10)
    at Module.load (module.js:490:32)
    at tryModuleLoad (module.js:449:12)
    at Function.Module._load (module.js:441:3)
    at Module.require (module.js:500:17)
    at require (internal/module.js:20:19)
    at Object.<anonymous> (C:\Users\Me\AppData\Roaming\npm\node_modules\create-elm-app\scripts\start.js:5:16)
    at Module._compile (module.js:573:32)
    at Object.Module._extensions..js (module.js:582:10)
    at Module.load (module.js:490:32)
    at tryModuleLoad (module.js:449:12)
    at Function.Module._load (module.js:441:3)

I have checked package.json and there is no react-dev-utils listed as a dependency.

Thank you.

On fresh install, `elm-app start` won't run template project

Even though the README.md states that there should be generated a elm-package.json, none is generated. It is not present in the /template sub-directory in the create-elm-app repository.

Upgrade to 0.18.0

Clearing console is slightly weird on MacOS

Terminal on MacOS is not being cleared.

Currently it uses:

function clear () {
  console.log('\x1Bc');
}

There must be a better way to do this.

Make isolated tests

Right now most of tests depends on result of 'Create Elm application with create-elm-app command' suite. It is very uncomfortable to run separate test.

Can make a PR for it.

Make Warnings visible, even when `elm-app start` successfully compiles

When elm-app start fails to compile, you'll get a list of warnings and errors, but when it succeeds, the warnings does not show.

It would be helpful to show the warnings along with the "compiled successfully" screen, as they often contain some useful information.

Skipping failed optional dependency ... fsevents

Got these when installing on Windows 10 x64:

npm WARN optional Skipping failed optional dependency /create-elm-app/chokidar/fsevents:
npm WARN notsup Not compatible with your operating system or architecture: [email protected]

Is 'fsevents' really optional? Do I lose any functionality?

I presume this is a Windows platform issue, there prolly should be something in the docs to warn folks about this.

Add automated tests

We need to make sure, that this module:

Exposes all required CLI commands;
Can create new apps;
Can build those apps;
Can eject those apps.

Hotloading fails to retain state after compile error

I changed the example code to the following, click Add 1 a few times and then made a change to force a compile error, and then corrected it. State returned to 1

module App exposing (..)

import Html exposing (Html, text, div, img, button)
import Html.Attributes exposing (src)
import Html.Events exposing (..)


type alias Model =
    { message : String
    , logo : String
    , count : Int
    }


init : String -> ( Model, Cmd Msg )
init path =
    ( { message = "Your Elm App is working!", logo = path, count = 1 }, Cmd.none )


type Msg
    = Inc
    | NoOp


update : Msg -> Model -> ( Model, Cmd Msg )
update msg model =
    case msg of
        Inc ->
            { model | count = model.count + 1 } ! []

        _ ->
            model ! []


view : Model -> Html Msg
view model =
    div []
        [ img [ src model.logo ] []
        , div [] [ text model.message ]
        , div [] [ text <| toString model.count ]
        , button [ onClick Inc ] [ text "add 1" ]
        ]


subscriptions : Model -> Sub Msg
subscriptions model =
    Sub.none

can't run simple app

Hi there,

I've just run

npm install -g create-elm-app
create-elm-app my-app
cd my-app
elm-app start

And I'm keep getting following:

Failed to compile.

Error in ./src/Main.elm
Module build failed: Error: Compiler process exited with error Compilation failed
elm-make: Map.!: given key is not an element in the map
 @ ./src/index.js 3:10-31

Repeating steps above didn't help

npm ERR! Refusing to delete /usr/local/bin/elm-app:

I got the following when doing sudo npm update -g create-elm-app.
Moving the file as suggested solved it, tho.

23960 verbose stack Error: Refusing to delete /usr/local/bin/elm-app: ../lib/node_modules/create-elm-app/bin/global-cli.js symlink target is not controlled by npm /usr/local
23960 verbose stack at clobberFail (/usr/share/npm/lib/utils/gently-rm.js:162:12)
23960 verbose stack at isSafeToRm (/usr/share/npm/lib/utils/gently-rm.js:152:15)
23960 verbose stack at /usr/share/npm/lib/utils/gently-rm.js:93:5
23960 verbose stack at LOOP (/usr/share/npm/node_modules/slide/lib/chain.js:7:26)
23960 verbose stack at /usr/share/npm/node_modules/slide/lib/chain.js:18:7
23960 verbose stack at skipENOENT (/usr/share/npm/lib/utils/gently-rm.js:174:38)
23960 verbose stack at /usr/share/npm/node_modules/iferr/index.js:11:16
23960 verbose stack at /usr/share/npm/node_modules/iferr/index.js:11:16
23960 verbose stack at /usr/share/npm/node_modules/iferr/index.js:11:16
23960 verbose stack at /usr/share/npm/node_modules/iferr/index.js:11:16
23961 verbose cwd /home/mb/code/elm
23962 error Linux 4.4.0-45-generic
23963 error argv "/usr/bin/nodejs" "/usr/bin/npm" "update" "-g" "create-elm-app"
23964 error node v4.2.6
23965 error npm v3.5.2
23966 error path /usr/local/bin/elm-app
23967 error code EEXIST
23968 error Refusing to delete /usr/local/bin/elm-app: ../lib/node_modules/create-elm-app/bin/global-cli.js symlink target is not controlled by npm /usr/local
23969 error File exists: /usr/local/bin/elm-app
23970 error Move it away, and try again.
23971 verbose exit [ 1, true ]

Failed to install elm packages with no internet connection when connected

I just read about the tool in the elm-lang slack and wanted to try it out.
I followed the instructions and got the output below. I am on Linux Mint.
Let me know, if you need any more info, can't wait to try this out, have heard great things only.
Thank you!

mb@rock ~/code/elm $ uname -a
Linux rock 4.4.0-45-generic #66-Ubuntu SMP Wed Oct 19 14:12:37 UTC 2016 x86_64 x86_64 x86_64 GNU/Linux

mb@rock ~/code/elm $ node -v
v6.3.0

mb@rock ~/code/elm $ sudo npm install create-elm-app -g
npm WARN deprecated [email protected]: ReDoS vulnerability parsing Set-Cookie https://nodesecurity.io/advisories/130
/usr/local/bin/elm-app -> /usr/local/lib/node_modules/create-elm-app/bin/global-cli.js
/usr/local/bin/create-elm-app -> /usr/local/lib/node_modules/create-elm-app/bin/create-elm-app-cli.js
npm WARN lifecycle [email protected]~install: cannot run in wd %s %s (wd=%s) [email protected] node install.js /usr/local/lib/node_modules/create-elm-app/node_modules/elm
/usr/local/lib
└─┬ [email protected] 
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npm WARN optional Skipping failed optional dependency /create-elm-app/chokidar/fsevents:
npm WARN notsup Not compatible with your operating system or architecture: [email protected]
mb@rock ~/code/elm $ create-elm-app myapp

Creating myapp project...


Failed to install elm packages

Please, make sure you have internet connection!

In case if you are running Unix OS, you might look in to this issue:

    https://github.com/halfzebra/create-elm-app/issues/10

Error when creating new app

I'm using Ubuntu 14.04.
I do 'sudo npm install create-elm-app -g' and get 'Project is successfully created in /home/alan/jack.'
I do 'cd jack' and then 'elm-app start' and get following terminal message....

events.js:160
throw er; // Unhandled 'error' event
^
Error: listen EADDRINUSE :::3000
at Object.exports._errnoException (util.js:953:11)
at exports._exceptionWithHostPort (util.js:976:20)
at Server._listen2 (net.js:1253:14)
at listen (net.js:1289:10)
at Server.listen (net.js:1385:5)
at Server.listen (/usr/local/lib/node_modules/create-elm-app/node_modules/webpack-dev-server/lib/Server.js:324:27)
at Object. (/usr/local/lib/node_modules/create-elm-app/scripts/start.js:62:11)
at Module._compile (module.js:541:32)
at Object.Module._extensions..js (module.js:550:10)
at Module.load (module.js:458:32)
at tryModuleLoad (module.js:417:12)
at Function.Module._load (module.js:409:3)
at Function.Module.runMain (module.js:575:10)
at startup (node.js:160:18)
at node.js:449:3

Local host:3000 gives 'Uncaught ReferenceError: _elm_lang$virtual_dom$VirtualDom$programWithFlags is not defined(…)

Help please.

Remove path-exists

Error on starting new application

By the command chain:

$ npm i -g create-elm-app
$ create-elm-app tst-elm
$ cd tst-elm
$ elm-app start

I am getting the following error:

Main.elm:3162 Uncaught ReferenceError: _elm_lang$virtual_dom$VirtualDom$programWithFlags is not defined

OS: Windows 10
node: v7.0.0
npm: 3.10.8

Problems creating a new app

I am having getting this error when trying to create a new app with create-elm-app

sujaira@sujaira-desktop:~/test-job/elm-test$ create-elm-app my-app

Creating my-app project...


Failed to install elm packages

Please, make sure you have internet connection!

In case if you are running Unix OS, you might look in to this issue:

    https://github.com/halfzebra/create-elm-app/issues/10

but I don't have any problem with my internet connection.
I run elm-package install in my-app folder and after installing the packages I run elm-app start but I am getting this error

Failed to compile.

Error in ./src/Main.elm
Module build failed: Error: Compiler process exited with error Compilation failed
events.js:154
      throw er; // Unhandled 'error' event
      ^

Error: spawn /usr/local/lib/node_modules/create-elm-app/node_modules/elm/Elm-Platform/0.18.0/.cabal-sandbox/bin/elm-make ENOENT
 @ ./src/index.js 3:10-31

what could be causing this errors ?

elm-app start broken after package install

After installing evancz/url-parser (using elm-app package install), the development build is broken.
elm-app start results in no compiler errors + blank screen in browser.
Inspector gives me the following error:

Uncaught SyntaxError: Invalid or unexpected token
    at Object.<anonymous> (bundle.js:1390)
    at __webpack_require__ (bundle.js:556)
    at fn (bundle.js:87)
    at eval (webpack:///./src/index.js?:3)
    at Object.<anonymous> (bundle.js:1336)
    at __webpack_require__ (bundle.js:556)
    at fn (bundle.js:87)
    at eval (webpack:///multi_main?:3)
    at Object.<anonymous> (bundle.js:589)
    at __webpack_require__ (bundle.js:

Have tried deleting elm-stuff and rebuild, but to no avail.

elm-app test compiler error new install

Not have written a letter, a fresh install gives a compiler error for test:

-- TYPE MISMATCH ------------------------------------------------- .\.\Tests.elm

The argument to function `first` is causing a mismatch.

14|                               Tuple.first App.init
                                              ^^^^^^^^
Function `first` is expecting the argument to be:

    ( App.Model, Cmd App.Msg )

But it is:

    String -> ( App.Model, Cmd App.Msg )

Hint: It looks like a function needs 1 more argument.

Detected errors in 1 module.
Compilation failed for Main.elm

Is there anything I did wrong?

Add `beginnerProgram` and `program` templates

Thank you for this tool!

Currently the tool generates most basic Hello World program, that does not follow the Elm Architecture.

It would be great to have on option(s) to generate a skeleton for Html.App.beginnerProgram as well as Html.App.program as a starting point.

The following examples can be used:
https://guide.elm-lang.org/architecture/user_input/buttons.html
https://guide.elm-lang.org/architecture/effects/http.html (The Bare Minimum)

Keep elm-package.json and tests/elm-package.json in sync

I often forget that I need to install the dependencies in two places if something that's under test needs the module that I just installed. I wonder if we could include an install command that simply runs elm package install in both locations?

Hot Reload Throws Exception on Updating the Browser

Version 0.1.8

After changing something and saving the file, the hot reload updates the page, but with an error:

Workaround: additional manual refresh settles the things.

Configurable webpack-dev-server Proxy

I would like to be able to run the development server with Proxy

Probably this configuration should go in to elm-package.json

Line Endings

Very cool project, I'm excited to use it!

But having trouble using it on a Mac...

create-elm-app app
env: node\r: No such file or directory

Looked like a line ending issue...
Fixed the line endings in the CLI file:

dos2unix create-elm-app-cli.js 
dos2unix: converting file create-elm-app-cli.js to Unix format...

And that seemed to do the trick:

➜  create-elm-app app2

Creating app2 project...

Starting downloads...

  ● elm-lang/virtual-dom 1.1.1
  ● elm-lang/html 1.1.0
  ● elm-lang/core 4.0.5

Packages configured successfully!

Project is successfully created in `/Users/tritowntim/code/tmp/app2`.

I would submit a PR, but can't get git to recognize the new file endings.

elm-app test -> Cannot find module 'Tuple' from Lazy.List import

So, I am trying Elm first time, everything is latest version as of today. I even thought to do npm install of elm-test -g. I am on Win 10 (sorry) node 6.9.1, have not made any changes after cloning from git.

C:\elm\app1>elm-app test
I cannot find module 'Tuple'.

Module 'Lazy.List' is trying to import it.

Potential problems could be:

Misspelled the module name

Need to add a source directory or new dependency to elm-package.json
Compilation failed for Main.elm

Thanks for making this; sorry I don't know enough to fix it myself

Deployment to heroku

I want to be able to deploy apps, but unfortunately I don't have that much experience with making build-packs.

There is a pretty cool project HappyAndHarmless/heroku-buildpack-elm, let's see if it's possible to have the setup for deployment on Heroku in template.

Improve Webpack configuration docs

As a user, who want's to eject, I would like to have more information in webpack.config files

Add comments, describing configuration code.

Error: EEXIST: file already exists, mkdir 'C:\dev\elm\my-app'

Getting this error when creating an app on Windows 10 x64. The folder 'my-app' definitely did not exist beforehand.

[michael.mrh-laptop] ➤ create-elm-app my-app

Creating my-app project...

{ Error: EEXIST: file already exists, mkdir 'C:\dev\elm\my-app'
    at Error (native)
    at Object.fs.mkdirSync (fs.js:922:18)
    at Object.mkdirsSync (C:\Users\michael\AppData\Roaming\npm\node_modules\create-elm-app\node_modules\fs-extra\lib\mkdirs\mkdirs-sync.js:29:9)
    at copySync (C:\Users\michael\AppData\Roaming\npm\node_modules\create-elm-app\node_modules\fs-extra\lib\copy-sync\copy-sync.js:31:36)
    at C:\Users\michael\AppData\Roaming\npm\node_modules\create-elm-app\node_modules\fs-extra\lib\copy-sync\copy-sync.js:40:7
    at Array.forEach (native)
    at copySync (C:\Users\michael\AppData\Roaming\npm\node_modules\create-elm-app\node_modules\fs-extra\lib\copy-sync\copy-sync.js:37:14)
    at createElmApp (C:\Users\michael\AppData\Roaming\npm\node_modules\create-elm-app\scripts\create.js:30:7)
    at Object.<anonymous> (C:\Users\michael\AppData\Roaming\npm\node_modules\create-elm-app\scripts\create.js:18:1)
    at Module._compile (module.js:556:32)
  errno: -4075,
  code: 'EEXIST',
  syscall: 'mkdir',
  path: 'C:\\dev\\elm\\my-app' }

'elm-app test' command fails on newly-created project

If I recall correctly, elm-app test worked fine in previous version (with Elm 0.17, create-elm-app 0.1.10).

I upgraded to Elm 0.18.0 and create-elm-app 0.2.0 -- I'm somewhat new to the Elm ecosystem and create-elm-app, so I'm not sure if I've messed up something somewhere.

user@machine:~/elmstuff$ elm-app create test
[snip]
Project is successfully created in `/home/testuser/elmstuff/test`.
[snip]

testuser@machine:~/elmstuff$ cd test
testuser@machine:~/elmstuff/test$ elm-app test
I cannot find module 'Tuple'.

Module 'Lazy.List' is trying to import it.

Potential problems could be:
  * Misspelled the module name
  * Need to add a source directory or new dependency to elm-package.json
Compilation failed for Main.elm

Versions:

Elm 0.18.0
[email protected]
[email protected]
Node v6.9.1

Initialise git repo on create

Maybe? I tend to like my boilerplates to do a "First commit from create-elm-app" git commit so a repo is all set up for me, but that might just be because I'm lazy!

Project stopped building correctly after 0.2.1 to 0.2.4 update

Just updated create-elm-app tool, and found that after building, resulting dist folder does not contain one of two images.
For some reasons, it just stopped adding logo.png in my build:

Hash: a04a29783dd15daf70f6
Version: webpack 1.14.0
Time: 9928ms
                          Asset       Size  Chunks             Chunk Names
static/media/about.6c5ea71c.png      14 kB          [emitted]  
            js/main.81a8a9e3.js     271 kB       0  [emitted]  main
          css/main.bfc7ed41.css     154 kB       0  [emitted]  main
                    favicon.ico  521 bytes          [emitted]  
                     index.html    1.16 kB          [emitted]

This is my project: https://github.com/hel-repo/hel-face
And this is how my images are attached to the project:

<...>
require('./Images/about.png');
require('./Images/logo.png');

var Elm = require('./Main.elm');

var root = document.getElementById('root');

Elm.Main.embed(root);

(https://github.com/hel-repo/hel-face/blob/master/src/index.js)

Everything works okay on 0.2.1:

Hash: 26a581f82038620448fb
Version: webpack 1.13.3
Time: 16834ms
                          Asset       Size  Chunks             Chunk Names
static/media/about.6c5ea71c.png      14 kB          [emitted]  
 static/media/logo.7c5853e0.png    8.59 kB          [emitted]  
            js/main.562a2cfd.js     259 kB       0  [emitted]  main
          css/main.bfc7ed41.css     154 kB       0  [emitted]  main
Compiled successfully!

Way to change localhost port

How can I change elm-app start default port value?
(:3000 is already occupied with another service, so I can't run my Elm app.)

Error when using background css property with url

.header-container {
  background:url("./images/barre-grise.png") repeat-x 0 0;
}

Adding this in main.css throws this error :

~/K/l/licence-elm-client (test-elm) $ elm-app start
Running /usr/local/lib/node_modules/create-elm-app/node_modules/.bin/elm-make /Users/toto/licence/licence-elm-client/src/Main.elm --yes --warn --output /var/folders/vj/sl_9sk296rq4
st_49brcbbf80000gn/T/116825-19365-119ploe.js
Success! Compiled 1 module.
Successfully generated /var/folders/vj/sl_9sk296rq4st_49brcbbf80000gn/T/116825-19365-119ploe.js

Compilation failed.

./src/images/barre-grise.png
Module parse failed: /Users/toto/licence/licence-elm-client/src/images/barre-grise.png Unexpected character '�' (1:0)
You may need an appropriate loader to handle this file type.
SyntaxError: Unexpected character '�' (1:0)
    at Parser.pp$4.raise (/usr/local/lib/node_modules/create-elm-app/node_modules/webpack/node_modules/acorn/dist/acorn.js:2221:15)

Enable historyApiFallback: true in create-elm-app

If you work with elm-lang/navigation or any similar tools, going to localhost:3000/foo will break as Webpack dev server tries to serve that file.

If we set historyApiFallback: true as an option when booting the dev server, this works as expected. I think this makes a sensible default - or at the least I'd love to be able to configure it without having to eject.

WDYT?

`elm app test watch`

Would be a really useful command to add. I'd love to take a stab at it if you're open to the idea?

Package stopped working

Right now if you do fresh installation of the package, it does not work.

npm rm -g create-elm-app
npm i -g create-elm-app
elm-app create test
cd test
elm-app start

$ elm-app start
/Users/fnez/.nvm/versions/node/v4.5.0/lib/node_modules/create-elm-app/bin/elm-app-cli.js:29
    if (pathExists.sync('elm-package.json') === false) {
        ^

ReferenceError: pathExists is not defined
    at Object.<anonymous> (/Users/fnez/.nvm/versions/node/v4.5.0/lib/node_modules/create-elm-app/bin/elm-app-cli.js:29:9)
    at Module._compile (module.js:409:26)
    at Object.Module._extensions..js (module.js:416:10)
    at Module.load (module.js:343:32)
    at Function.Module._load (module.js:300:12)
    at Function.Module.runMain (module.js:441:10)
    at startup (node.js:139:18)
    at node.js:974:3

SASS support

Any chance you could add out-of-the-box SASS support?

Packages required:

node-sass
sass-loader

Webpack config:

{
  test: /\.sass$/,
  loader: "style!css!sass?indentedSyntax"
}

Non-zero exit code in case of build fail

Currently, elm-app build command always returns zero code, even if the build was failed.
Like here.

It may be very helpful for auto-deploy configuration, if it will return non-zero code when fails.