[![Build Status](https://travis-ci.org/ethereum/browser-solidity.svg?branch=master)](https://travis-ci.org/ethereum/browser-solidity)

# Remix

Remix (aka. Browser-Solidity) is a browser-based Solidity compiler and IDE.

Visit [https://remix.ethereum.org](https://remix.ethereum.org) to use;
it will always deliver the latest version.

## Offline Usage

The `gh-pages` branch always has the latest stable build of Remix. It also contains a ZIP file with the entire build. Download it to use offline.

Note: it contains the latest release of Solidity available at the time of the packaging. No other compiler versions are supported.


## INSTALLATION:

Install npm and node.js (see https://docs.npmjs.com/getting-started/installing-node), then do:

* `git clone https://github.com/ethereum/browser-solidity`
* `cd browser-solidity`
* `npm install` - fetch dependencies & executes `npm run prepublish` to build the application

## DEVELOPING:

Run `npm start` and open `http://127.0.0.1:8080` in your browser.

Then open your `text editor` and start developing.
The browser will automatically refresh when files are saved

### Troubleshooting building

Here are some things to consider if you have trouble building the package.

- Make sure that you have the correct version of `node`, `npm` and `nvm`. You can find the version that is tested on Travis CI by looking at the log in the [build results](https://travis-ci.org/ethereum/browser-solidity).

Run:

	node --version
	npm --version
	nvm --version

- In Debian based OSes such as Ubuntu 14.04LTS you may need to run `apt-get install build-essential`. After installing `build-essential` run `npm rebuild`.

## Unit Testing

Register new unit test files in `test/index.js`.
The tests are written using [tape](https://www.npmjs.com/package/tape).

Run the unit tests via: `npm test`

For local headless browser tests run `npm run test-browser`
(Requires selenium to be installed - can be done with `npm run selenium-install`)

Running unit tests via `npm test` requires at least node v7.0.0

## Browser Testing

To run the Selenium tests via Nightwatch serve the app through a local web server:

	npm run serve # starts web server at localhost:8080

Then you will need to either:

1. Have a Selenium server running locally on port 4444.
	- Run: `npm run test-browser`
2. Or, install and run SauceConnect.
	- Run: `sc -u <USERNAME> -k <ACCESS_KEY>` (see `.travis.yml` for values)
	- Run: `npm run browser-test-sc`

## Usage as a Chrome Extension

If you would like to use this as a Chrome extension, you must either build it first or pull from the `gh-pages` branch, both described above.
After that, follow these steps:

- Browse to `chrome://extensions/`
- Make sure 'Developer mode' has been checked
- Click 'Load unpacked extension...' to pop up a file-selection dialog
- Select your `browser-solidity` folder