SlipStream is now deprecated -> replaced by https://github.com/nuvla

SlipStream Web UI

An application that provides a graphical interface to cloud management services that use the CIMI interface.

Frameworks and Libraries

SlipStream Code:

• SlipStream Clojure(Script) API: Provides a ClojureScript API for the CIMI and CIMI-like resources within SlipStream.

Frameworks:

• Reagent: Provides a ClojureScript interface to the React framework.
• re-frame: A framework that relies on React for visualization and provides mechanisms for using "FRP" for data flow and control.

Widgets:

• Semantic UI React: React integration for Semantic UI.

Development Environment

The essentials for using the development environment are below.

Browser

To test the code on a SlipStream server (e.g. https://nuv.la/) running on a different machine, you'll need to start a browser with the XSS protections disabled.

For Chrome on MacOS, this can be done with:

$ open /Applications/Google\ Chrome.app \
       --args --disable-web-security --user-data-dir

For Safari, first enable the "Develop" menu:

• Open the Safari preferences,
• Click the "Advanced" tab, and
• Then activate the "Show Develop menu in menu bar" option.

Once the "Develop" menu is visible, choose the "Disable Cross-Origin Restrictions" option.

There may be FireFox plugins that will allow you to disable the CORS protections. The easier solution is to use Chrome or Safari.

NPM

The build uses shadow-cljs to facilitate the use of Javascript modules packaged with NPM. This requires that you install the npm command line interface on your development machine.

On Mac OS, the npm command comes with the Node.js distribution of Homebrew. Just run the command brew install node.

For other distributions or for direct installation on Mac OS, take a look at the Node.js downloads page.

Leiningen

The development environment requires lein. Follow the instructions on the Leiningen website to install the tool.

Workflow

Once all of the development tools have been installed, the workflow is as follows:

1. Run npm install at the root of the cloned repository. This only needs to be done once at the beginning and then whenever dependencies change.

2. Start a development server for the build with lein dev. When this completes ("build completed" message in the terminal), you can then connect to the process on http://localhost:8280.

3. Changes you make to the code should automatically be recompiled and then pushed to your browser.

4. If you need a REPL, you can run the command lein cljs-repl from a different terminal.

5. You can terminate the process with Ctrl-C from the terminal window.

Integration with IntelliJ

You can import the repository through IntelliJ, using the "leiningen" method in the dialog.

If you have the IntelliJ command line installed, the shadow-cljs heads-up display, should open files in the IntelliJ editor.

The command for opening Chrome with the security disabled, can be configured as an "external tool" in IntelliJ. In "Preferences", go to the "Tools" -> "External Tools" panel.

Logging

You can reset the logging level for kvlt from the REPL when running in development mode. From the REPL do:

=> (require '[taoensso.timbre :as timbre])
=> (timbre/set-level! :info)

The default value is :debug which will log all of the HTTP requests and responses. This is useful when debugging interactions with SlipStream, but annoying otherwise.