Code Snippet Ember Component

This is an Ember component (and ember-cli addon) that lets you render code snippets within your app. The code snippets can live in their own dedicated files or you can extract blocks of code from your application itself.

• Syntax highlighting thanks to highlight.js. To see how it looks, view the highlightjs previews.
• ember-cli's auto-reload will pick up changes to any of the snippet files.
• the component uses file extensions to help highlight.js guess the right language.

Install

npm install --save-dev ember-code-snippet

Usage

There are two ways to store your code snippets. You can use either or both together.

With separate snippet files

Create a new "snippets" directory at the top level of your ember-cli application, and place the code snippets you'd like to render in their own files inside it. They will be identified by filename. So if you create the file snippets/sample-template.hbs, you can embed it in a template with:

{{code-snippet name="sample-template.hbs"}}

You can choose to load snippet files from different paths by passing an option to new EmberApp in your Brocfile.js:

var app = new EmberApp({
  snippetPaths: ['snippets']
});

From within your application source

In any file under your app tree, annotate the start and end of a code snippet block by placing comments like this:

// BEGIN-SNIPPET my-nice-example
function sample(){
  return 42;
};
// END-SNIPPET

The above is a Javascript example, but you can use any language's comment format. We're just looking for lines that match /\bBEGIN-SNIPPET\s+(\S+)\b/ and /\bEND-SNIPPET\b/.

The opening comment must include a name. The component will identify these snippets using the names you specified plus the file extension of the file in which they appeared (which helps us detect languages for better highlighting). So the above example could be included in a template like this:

{{code-snippet name="my-nice-example.js"}}

By default, the component will try to unindent the code block by removing whitespace characters from the start of each line until the code bumps up against the edge. You can disable this with:

{{code-snippet name="my-nice-example.js" unindent=false}}

You can choose which paths will be searched for inline snippets by settings the snippetSearchPaths option when creating your application in Brocfile.js:

var app = new EmberApp({
  snippetSearchPaths: ['app', 'other']
});