grunt-frontmatter
v1.2.0
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Creates a json file from many files with yaml frontmatter
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grunt-frontmatters
Extract YAML front-matter from files to a single JSON file
The use case of grunt-frontmatter
task is to strip all YAML front-matter pressent in multiple files (.html, .md, whatsoever) and combine them all in a single JSON file that can be loaded at once as a single file. It also is able to strip few firsts characters from each file to make a preview.
In addition to data already present in the YAML following fields are added:
preview
of the actual body contentbasename
of the filenamemd5
with the md5 signature of the file body
The "frontmatter" task
Pretend you have a folder structure like this:
.
├── Gruntfile.coffee
├── component.json
├── package.json
└── source
├── articles
│ ├── bellflower.md <--
│ ├── fiddler.html <--
│ └── lottery.md <--
├── favicon.ico
├── index.jade
├── style.styl
├── styles
│ ├── h5bp.css
│ ├── main.css
│ └── normalize.css
└── templates
└── h5bp.jade
Each file in the articles directory has a bit of YAML front-matter metadata, like the title of the article, author, and tags. We want just the metadata from all three to be combined into a single JSON stringified file, called articles.json.
Now grunt release
will build a release
folder that looks like this:
.
├── Gruntfile.coffee
├── component.json
├── package.json
├── release
│ ├── articles
│ │ ├── bellflower.html
│ │ ├── fiddle.html
│ │ └── lottery.html
│ ├── articles.json <---
│ ├── favicon.ico
│ ├── index.html
│ └── style.css
└── source
Configuring your "frontmatter" task
In your project's Gruntfile, add a section named frontmatter
to
the data object passed into grunt.initConfig()
.
frontmatter: {
release: {
options: {
minify: true,
width: 60
},
files: {
'release/articles.json': ['source/articles/*.md']
},
}
}
Options
options.minify
Type: Boolean
Default value: false
If true, then the JSON.stringify is instructed to strip unnecessary linebreaks, making the resulting .json file smaller.
options.dirname
Type: Boolean
Default value: false
If true, then each entry has the dirname
entry and object keys are
composed with dirname + '/' + basename
.
options.width
Type: Int
| String
Default value: "sentence"
If it is an Integer no more than width
charactes from the Markdown file's body is saved in the preview
element. Trailing ellipses are not added.
If it is "sentence"
saves until the first ". "
, if it is a String number
+ "s"
(ex: "2s"
) it is the number of sentences.
If preview defined in the frontmatter of a file, it takes it as preview and ignores this option.
More Examples
See examples.