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Static site generator for Grunt.js, Yeoman and Node.js. Used by Zurb Foundation, Zurb Ink, H5BP, Topcoat, Web Experience Toolkit, and hundreds of other projects to build sites, themes, components, documentation, blogs and gh-pages.

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# grunt-assemble [![NPM version](https://badge.fury.io/js/grunt-assemble.svg)](http://badge.fury.io/js/grunt-assemble)  [![Build Status](https://travis-ci.org/assemble/grunt-assemble.svg)](https://travis-ci.org/assemble/grunt-assemble)

> Static site generator for Grunt.js, Yeoman and Node.js. Used by Zurb Foundation, Zurb Ink, H5BP/Effeckt, Less.js / lesscss.org, Topcoat, Web Experience Toolkit, and hundreds of other projects to build sites, themes, components, documentation, blogs and gh-pages.

### [Visit the website →](http://assemble.io)

### Warning!

> Versions of `grunt-assemble` below `0.2.0` have been deprecated and can be found on the [`0.1.15-deprecated` branch](https://github.com/assemble/grunt-assemble/tree/0.1.15-deprecated).
Versions of `grunt-assemble` at and above `0.2.0` contain the code from the original `assemble` up to version `0.4.42`.

> See the [migration](#migrations) section for instructions on what to do when upgrading to a new version.

## Why use Assemble?

1. Most popular site generator for Grunt.js and Yeoman. Assemble is used to build hundreds of web projects, ranging in size from a single page to 14,000 pages (that we're aware of!). [Let us know if you use Assemble](https://github.com/assemble/assemble/issues/300).
1. Allows you to carve your HTML up into reusable fragments: partials, includes, sections, snippets... Whatever you prefer to call them, Assemble does that.
1. Optionally use `layouts` to wrap your pages with commonly used elements and content.
1. "Pages" can either be defined as HTML/templates, JSON or YAML, or directly inside the Gruntfile.
1. It's awesome. Lol just kidding. But seriously, Assemble... is... awesome! and it's fun to use.

...and of course, we use Assemble to build the project's own documentation [http://assemble.io](http://assemble.io):

**For more:** hear Jon Schlinkert and Brian Woodward discuss Assemble on **Episode 98 of the [Javascript Jabber Podcast](http://javascriptjabber.com/098-jsj-assemble-io-with-brian-woodward-and-jon-schlinkert/)**.

![image](https://f.cloud.github.com/assets/383994/1463257/f031bcfe-4525-11e3-9a03-89a17eee7518.png)

## The "assemble" task

### Getting Started
Assemble requires Grunt `~0.4.1`

_If you haven't used [grunt][] before, be sure to check out the [Getting Started][] guide._

From the same directory as your project's [Gruntfile][Getting Started] and [package.json][], install Assemble with the following command:

```bash
npm install grunt-assemble --save-dev
```

Once that's done, add this line to your project's Gruntfile:

```js
grunt.loadNpmTasks('grunt-assemble');
```

### The "assemble" task
_Run the "assemble" task with the `grunt assemble` command._

Task targets, files and options may be specified according to the grunt [Configuring tasks](http://gruntjs.com/configuring-tasks) guide.

In your project's Gruntfile, add a section named `assemble` to the data object passed into `grunt.initConfig()`.

```js
assemble: {
  options: {
    assets: 'assets',
    plugins: ['permalinks'],
    partials: ['includes/**/*.hbs'],
    layout: ['layouts/default.hbs'],
    data: ['data/*.{json,yml}']
  },
  site: {
    src: ['docs/*.hbs'],
    dest: './'
  }
},
```

[grunt]: http://gruntjs.com/
[Getting Started]: https://github.com/gruntjs/grunt/blob/devel/docs/getting_started.md
[package.json]: https://npmjs.org/doc/json.html

### Options
See the documentation for [Options](http://assemble.io/docs/Options.html) for more information.

### [assets](http://assemble.io/docs/options-assets.html)
Type: `String`
Default: `undefined`

Used with the `{{assets}}` variable to resolve the relative path from the _dest file_ to the _assets_ folder.

### [data](http://assemble.io/docs/options-data.html)
Type: `String|Array|Object`
Default: `src/data`

Specify the data to supply to your templates. Data may be formatted in `JSON`, `YAML`, [YAML front matter](http://assemble.io/docs/YAML-front-matter.html), or passed directly as an object. Wildcard patterns may also be used.

The filenames of the selected files must not collide with the [configuration options key names](http://assemble.io/docs/Options.html#configuration-options) for the assemble build task. For example, the files must not be called `assets.yml`,`collections.json`,….

### [layoutdir](http://assemble.io/docs/options-layoutdir.html)
Type: `String`
Default: `undefined`

The directory to use as the "cwd" for [layouts](http://assemble.io/docs/options-layout.html). When this option is defined, layouts may be defined using only the name of the layout.

### [layouts](http://assemble.io/docs/options-layouts.html)
Type: `String|Array<String>`
Default: `undefined`

A glob pattern to be used to find layouts. When this option is defined, the `layoutdir` option is ignored and layouts specified in templates will be searched for using the specified glob pattern(s).

### [layout](http://assemble.io/docs/options-layout.html)
Type: `String`
Default: `undefined`

If set, this defines the layout file to use for the [task or target][tasks-and-targets]. However, when specifying a layout, unlike Jekyll, _Assemble requires a file extension_ since you are not limited to using a single file type.

### layoutext
Type: `String`
Default: `undefined`

Specify the extension to use for layouts, enabling layouts in YAML front matter to be defined without an extension:

```yaml
---
layout: default
---
```

[tasks-and-targets]: http://gruntjs.com/configuring-tasks#task-configuration-and-targets

### [partials](http://assemble.io/docs/options-partials.html)
Type:  `String|Array`
Default: `undefined`

Specifies the Handlebars partials files, or paths to the directories of files to be used.

### [plugins](http://assemble.io/plugins/)
Type: `String|Array`
Default: `undefined`

Name of the npm module to use and/or the path(s) to any custom plugins to use. Wildcard patterns may also be used.

See the [docs for plugins](http://assemble.io/plugins/).

### [helpers](http://assemble.io/docs/options-helpers.html)
Type: `String|Array`
Default: [handlebars-helpers](http://github.com/assemble/handlebars-helpers)

Name of the npm module to use and/or the path(s) to any custom helpers to use with the current template engine. Wildcard patterns may also be used.

By default, Assemble includes [handlebars-helpers]((http://assemble.io/helpers/)) as a dependency, so any helpers from that library are already available to be used in your templates.

See the [docs for helpers](http://assemble.io/helpers/).

### [ext](http://assemble.io/docs/options-ext.html)
Type: `String`
Default: `.html`

Specify the file extension for destination files. Example:

### [marked](http://assemble.io/docs/options-marked.html)
Type: `Object`
Default: [Marked.js defaults](https://github.com/chjj/marked#options-1)

Specify the [Marked.js options](https://github.com/chjj/marked#options-1) for the `{{#markdown}}{{/markdown}}` and `{{md ""}}` helpers to use when converting content.

### [engine](http://assemble.io/docs/options-engine.html)
Type: `String`
Default: `Handlebars`

Specify the engine to use for compiling templates **if you are not using Handlebars**.

Also see [assemble-swig](https://github.com/assemble/assemble-swig) for compiling [Swig Templates](https://github.com/paularmstrong).

### flatten
Type: `Boolean`
Default: `false`

Remove anything after (and including) the first `.` in the destination path, then append this value. In other words, when files are generated from different source folders this "flattens" them into the same destination directory. See [building the files object dynamically](http://gruntjs.com/configuring-tasks#building-the-files-object-dynamically) for more information on `files` formats.

Visit [Assemble's documentation](http://assemble.io) for more information about options.

### Usage Examples
Simple example of using data files in both `.json` and `.yml` format to build Handlebars templates.

```javascript
assemble: {
  options: {
    data: 'src/data/**/*.{json,yml}'
  },
  docs: {
    files: {
      'dist/': ['src/templates/**/*.hbs']
    }
  }
}
```

#### Using multiple targets

```js
assemble: {
  options: {
    assets: 'assets',
    layoutdir: 'docs/layouts'
    partials: ['docs/includes/**/*.hbs'],
    data: ['docs/data/**/*.{json,yml}']
  },
  site: {
    options: {
      layout: 'default.hbs'
    },
    src: ['templates/site/*.hbs'],
    dest: './'
  },
  blog: {
    options: {
      layout: 'blog-layout.hbs'
    },
    src: ['templates/blog/*.hbs'],
    dest: 'articles/'
  },
  docs: {
    options: {
      layout: 'docs-layout.hbs'
    },
    src: ['templates/docs/*.hbs'],
    dest: 'docs/'
  }
},
```

Visit [Assemble's documentation](http://assemble.io) for many more examples and pointers on getting started.

### Migrations

#### Breaking changes between versions `0.5.0` and `0.6.0`

Version 6 is using [assemble-handlebars][] version `0.4.0` which updates [handlebars-helpers][] to version `0.6.0`. Due to this update, there are some breaking changes with how some helpers are loaded and some missing/added helpers.

The following list contains the breaking changes that we have noticed that may require updates to existing templates.

**helpers loaded from package.json**

Any helpers declared in `dependencies` or `devDependencies` and have their name in the `keywords` property will no longer be loaded automatically. To load the helpers, just include the package name in the `helpers` option for your `grunt-assemble` target:

```js
assemble: {
  options: {
    helpers: ['handlebars-helper-eachitems']
  }
}
```

**new path helpers**

Helpers have been added that map to methods on the built-in `path` module. Some of these helpers are also properties that `grunt-assemble` adds automatically to `page` properties. To use the page property, use the `this` keyword before the property name. To use the helper, use it like any other helper.

```handlebars
{{this.basename}}
{{basename this.path}}
```

**missing helper "inspect"**

The "inspect" helper has been removed from `handlebars-helpers`. The test fixtures in this project use the "inspect" helper so it has been recreated [here](./test/helpers/logging.js).

**missing helper "unless_eq"**

The "unless_eq" helper has been renamed to "unlessEq".

**missing helper "md" or "markdown"**

There is a bug in `handlebars-helpers@0.6` that causes the `md` and `markdown` helpers to not be registered correctly. This has been fixed in newer versions of `handlebars-helpers`, however those changes have not made it here yet. There is currently a refactor of `grunt-assemble` that will include the fix, but for now, use the following work-around:

Create a file and register the helpers manually:

```js
// helpers/markdown.js
module.exports.register = function (Handlebars) {
  'use strict';

Handlebars.registerHelper('markdown', require('helper-markdown')());
  Handlebars.registerHelper('md', require('helper-md').sync);
};
```

```js
// Gruntfile.js
assemble: {
  options: {
    helpers: ['./helpers/*.js']
  }
}
```

**handlebars 4 changed how context depths are handled**

`assemble-handlebars` is also using a newer version of handlebars that changed how the context depth is handled. Some of the block helpers that would create a new depth, no longer create the depth. This requires changing some templates that use the `{{../}}` syntax to reduce the amount of `../` segments used. This can be seen in block helpers that don't modify the context, like `{{#if}}{{/if}}` and `{{#is}}{{/is}}`.

[assemble-handlebars]: https://github.com/assemble/assemble-handlebars
[handlebars-helpers]: https://github.com/assemble/handlebars-helpers

## Contributing
In lieu of a formal styleguide, take care to maintain the existing coding style. Add unit tests for any new or changed functionality, and please re-build the documentation with [grunt-verb](https://github.com/assemble/grunt-verb) before submitting a pull request.

## Assemble plugins
Here are some related projects you might be interested in from the [Assemble](http://assemble.io) core team.

+ [assemble-middleware-anchors](https://github.com/assemble/assemble-middleware-anchors): Assemble middleware for creating anchor tags from generated html. 
+ [assemble-middleware-contextual](https://github.com/assemble/assemble-middleware-contextual): Assemble middleware for generating a JSON file containing the context of each page. Basic middleware to help see what's happening in the build. 
+ [assemble-middleware-decompress](https://github.com/assemble/assemble-middleware-decompress): Assemble plugin for extracting zip, tar and tar.gz archives.  
+ [assemble-middleware-download](https://github.com/assemble/assemble-middleware-download): Assemble middleware for downloading files from GitHub. 
+ [assemble-middleware-drafts](https://github.com/assemble/assemble-middleware-drafts): Assemble middleware (v0.5.0) for preventing drafts from being rendered. 
+ [assemble-middleware-i18n](https://github.com/assemble/assemble-middleware-i18n): Assemble middleware for adding i18n support to projects. 
+ [assemble-middleware-lunr](https://github.com/assemble/assemble-middleware-lunr): Assemble middleware for creating a search engine within your static site using lunr.js. 
+ [assemble-middleware-permalinks](https://github.com/assemble/assemble-middleware-permalinks): Permalinks middleware for Assemble, the static site generator for Grunt.js and Yeoman. This plugin enables powerful and configurable URI replacement patterns, presets, uses Moment.js for parsing dates, and much more. 
+ [assemble-middleware-rss](https://github.com/assemble/assemble-middleware-rss): Assemble middleware for creating RSS feeds with Assemble. (NOT published yet!) 
+ [assemble-middleware-sitemap](https://github.com/assemble/assemble-middleware-sitemap): Assemble middleware for generating sitemaps. 
+ [assemble-middleware-toc](https://github.com/assemble/assemble-middleware-toc): Assemble middleware for creating a table of contents in the generated HTML, using Cheerio.js 
+ [assemble-middleware-wordcount](https://github.com/assemble/assemble-middleware-wordcount): Assemble middleware for displaying a word-count, and estimated reading time on blog posts or pages.

Visit [assemble.io/assemble-middleware](http:/assemble.io/assemble-middleware/) for more information about [Assemble](http:/assemble.io/) middleware.

## Authors
 
**Jon Schlinkert**
 
+ [github/jonschlinkert](https://github.com/jonschlinkert)
+ [twitter/jonschlinkert](http://twitter.com/jonschlinkert) 
 
**Brian Woodward**
 
+ [github/doowb](https://github.com/doowb)
+ [twitter/doowb](http://twitter.com/doowb)

## Release History
**DATE**       **VERSION**   **CHANGES**                                                                
* 2014-07-07   v0.4.41       Updating resolve-dep dependency.                                           
* 2014-06-13   v0.4.38       Use gray-matter instead of assemble-yaml.,Updates dependencies. Minor      
                             refactoring and new utils to get rid of a couple of dependencies.,Update   
                             the loaders for plugins and helpers to use resolve-dep. Should be more     
                             reliable now.                                                              
* 2013-10-25   v0.4.17       Adds a params object to the call to `helper.register` allowing grunt and   
                             assemble to be passed in and used from inside helpers.                     
* 2013-10-24   v0.4.16       Adds support for using wildcards with plugins stages.                      
* 2013-10-24   v0.4.15       Implements multiple plugin stages.                                         
* 2013-10-21   v0.4.14       Adds support for plugins running once, before and after (thanks            
                             @adjohnson916).,Adds pagination!,Thanks to @xzyfer, `options.data` can now 
                             also directly accept an object of data.                                    
* 2013-10-12   v0.4.13       Adds `originalAssets` property to root context to store the pre-calculated 
                             assets path                                                                
* 2013-10-05   v0.4.12       Fixes plugins resolving for devDependencies.                               
* 2013-10-03   v0.4.11       Adds filePair to page object. thanks @adjohnson916!                        
* 2013-10-02   v0.4.10       Adds plugin support to Assemble using the `plugins` option. thanks         
                             @adjohnson916!                                                             
* 2013-10-02   v0.4.9        Adds `layoutext` and `postprocess` options.                                
* 2013-09-30   v0.4.8        Assemble now builds 30-50% faster due to some refactoring to async and how 
                             context is calculated.                                                     
* 2013-09-20   v0.4.7        Adds grunt-readme to make it easier to keep the readme updated using       
                             templates.,Keep options.partials intact so they can be used in helpers.    
* 2013-09-15   v0.4.6        Updating how the assets path is calculated.,Adding resolve-dep and ability 
                             to load helpers from node modules using minimatch patterns                 
* 2013-09-03   v0.4.5        Bug fix: allow page content containing $.,Add alias metadata for data on   
                             pages configuration object.                                                
* 2013-08-01   v0.4.4        Adds "nested layouts",Adds option for pages in JSON/YAML collections to be 
                             defined as either objects or keys in an array.                             
* 2013-08-01   v0.4.3        Adds "options.pages" for passing in an array of pages in JSON or YAML      
                             format.                                                                    
* 2013-06-20   v0.4.0        Adds "layoutdir" option for defining the directory to be used for layouts. 
                             If layoutdir is defined, then layouts may be defined using only the name of
                             the layout.                                                                
* 2013-06-10   v0.3.81       Adds additional ways to load custom helpers. Now it's possible to use a    
                             glob pattern that points to a list of scripts with helpers to load.,Adds   
                             examples and tests on how to use the new custom helper loading methods.    
* 2013-06-01   v0.3.80       Fixing bug with null value in engine                                       
* 2013-05-07   v0.3.77       Updated README with info about assemble methods                            
* 2013-04-28   v0.3.74       Updating the assemble library to use the assemble-utils repo and           
                             unnecessary code.                                                          
* 2013-04-21   v0.3.73       Fixing how the relative path helper worked and showing an example in the   
                             footer of the layout. This example is hidden, but can be seen by doing view
                             source.                                                                    
* 2013-04-20   v0.3.72       Fixing the layout override issue happening in the page yaml headers.       
                             Something was missed during refactoring.                                   
* 2013-04-19   v0.3.9        Adds tags and categories to the root context and ensure that the current   
                             page context values don't override the root context values.                
* 2013-04-18   v0.3.8        Updating to use actual assets property from current page.                  
* 2013-04-17   v0.3.7        Cleaning up some unused folders and tests                                  
* 2013-04-16   v0.3.6        Fixed missing assets property.                                             
* 2013-04-16   v0.3.5        Adds a sections array to the template engine so it can be used in helpers. 
* 2013-04-11   v0.3.4        More tests for helpers and global variables, organized tests. A number of  
                             bug fixes.                                                                 
* 2013-04-06   v0.3.3        helper-lib properly externalized and wired up. Global variables for        
                             filename, ext and pages                                                    
* 2013-03-22   v0.3.22       Merged global and target level options so data and partial files can be    
                             joined                                                                     
* 2013-03-22   v0.3.21       Valid YAML now allowed in options.data object (along with JSON)            
* 2013-03-18   v0.3.14       new relative helper for resolving relative paths

## License
Copyright (c) 2017 Jon Schlinkert, Brian Woodward, contributors.  
Released under the MIT license

***

_This file was generated by [grunt-verb](https://github.com/assemble/grunt-verb) on March 17, 2017._

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