gulp-hbs
Gulp plugin that runs JSON files through a handlebars template, converting them to HTML
Last updated 5 years ago by philmander .
MIT · Repository · Bugs · Original npm · Tarball · package.json
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gulp-hbs

Runs JSON files through a handlebars template, converting them to HTML

Install

   npm install gulp-hbs --save-dev

Usage

    var hbs = require('gulp-hbs');

    gulp.src('*.json')
        .pipe(hbs('template.hbs')))
        .pipe(gulp.dest('html'));

You can also use other gulp streams to describe your template(s).

    var hbs = require('gulp-hbs');
    
    gulp.src('*.json')
        .pipe(hbs(gulp.src('templates/**/*.hbs')))
        .pipe(gulp.dest('html'));

In that case, the stram must either emit exactly one template file, or the data must contain a template key which will choose among the different templates, using their relative path as a key.

API

hbs(templateSrc[, options])

templateSrc: Path to a handlebars template, or gulp (or vinyl) stream of template files.

The following options are supported:

  • cache (default true, only applicable if templateSrc is a string).

    If set to true, multiple references to the same tmplate will use a cached version of the compiled template. The option may also be set to an object which will then be used as the cache.

    Not using the global cache, as is the default, is important in tasks intended to be run from a gulp.watch call if the template itself may be modified as well.

  • defaultTemplate (only applicable if templateSrc is a stream, defaults to the sole file in that stream).

    If there are multiple templates, then sources with no template specified will use this template by default.

  • dataSource (defaults to 'json').

    In json mode, input is assumed to represent a JSON-encoded file, which will be used as the data source for the template. This is useful for data read from json files or from plugins like gulp-dox or markit-json.

    In vinyl mode, the whole file object with all the attributes other plugins might have added to it will be accessible. The original file contents, converted to a string, will be contained in the attribute indicated by bodyAttribute.

    In data mode, the data attribute of the file object will be used. The original content will again be made accessible under the attribute indicated by bodyAttribute.

    The option may also be set to a function, which will take a vinyl file and return the data object to be fed into the compiled template for rendering.

  • bodyAttribute (defaults to 'body').

    If dataSource is something other than json, this option indicates under what attribute the original file content will be made available.

  • templateAttribute (defaults to 'template', only applicable if templateSrc is a stream).

    This attribute is used to choose a template from those in the template stream. Nested attribute names (separated by dots) are allowed.

  • compile (defaults to handlebars.compile).

    Function used to compile each template. This function will accept a string and return a function. The returned function must turn the provided data into the rendered output used by applying the tempate to the data.

hbs.registerHelper(name, helperFn)

Register a handlebars helper.

hbs.registerPartial(name, partial)

Register a handlebars partial.

hbs.handlebars

This is the underlying Handlebars object used by this plugin. Using this reference, you can use the full Handlebars API and be certain to affect the module used by the plugin.

Cooperation

The plugin is designed to cooperate with various other plugins.

gulp-dox

To document JavaScript sources, you can use Dox in a pipeline like this using the gulp-dox plugin:

    var dox = require('gulp-dox');
    var hbs = require('gulp-hbs');

    gulp.src('src/**/*.js')
        .pipe(dox())
        .pipe(hbs('api-template.hbs')))
        .pipe(gulp.dest('docs'));

markit-json

You can use a Markdown-generated body with YAML front matter using the markit-json plugin. Use the default dataSource:'json' configuration, and refer to the body using {{{body}}} in your templates.

    var markdown = require('markit-json');
    var hbs = require('gulp-hbs');

    gulp.src('*.md')
        .pipe(markdown())
        .pipe(hbs(gulp.src('*.hbs'), {defaultTemplate: 'default.hbs'}))
        .pipe(gulp.dest('html'));

gulp-front-matter

Another way to handle front matter is using the gulp-front-matter plugin. There are two ways of using this. It's probably best to configure gulp-front-matter using property: 'data'. Then you can use dataSource: 'data' for gulp-hbs to access the front matter.

    var fm = require('gulp-front-matter');
    var hbs = require('gulp-hbs');

    gulp.src('src/**/*.html')
        .pipe(fm({property: 'data'}))
        .pipe(hbs(gulp.src('templates/*.hbs'), {dataSource: 'data'}))
        .pipe(gulp.dest('html'));

If you want to stick to the default property name, you can use the vinyl data source to make all of the file object available. In this case, you have to list the frontMatter path element of your data structure explicitely in your handlebars template.

    var fm = require('gulp-front-matter');
    var hbs = require('gulp-hbs');

    gulp.src('src/**/*.html')
        .pipe(fm())
        .pipe(hbs(gulp.src('templates/*.hbs'), {
            dataSource: 'vinyl',
            templateAttribute: 'frontMatter.template'}))
        .pipe(gulp.dest('html'));

gulp-data

The gulp-data plugin provides a flexible way to use the data property of the vinyl file to hold additional data to accompany any document. Use the dataSource: 'data' configuration to access that.

    var data = require('gulp-data');
    var hbs = require('gulp-hbs');

    gulp.src('src/**/*.html')
        .pipe(data(function(file) { return obtainData(file); }))
        .pipe(hbs(gulp.src('templates/*.hbs'), {dataSource: 'data'}))
        .pipe(gulp.dest('html'));

License

MIT © Phil Mander, Martin von Gagern

Current Tags

  • 0.2.0                                ...           latest (5 years ago)

3 Versions

  • 0.2.0                                ...           5 years ago
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  • 0.0.1                                ...           5 years ago
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