gulp-header

gulp-header is a Gulp extension to add a header to file(s) in the pipeline. Gulp is a streaming build system utilizing node.js.

Install

npm install --save-dev gulp-header

Usage

// assign the module to a local variable
var header = require('gulp-header');


// literal string
// NOTE: a line separator will not be added automatically
gulp.src('./foo/*.js')
  .pipe(header('Hello'))
  .pipe(gulp.dest('./dist/'))


// ejs style templating
gulp.src('./foo/*.js')
  .pipe(header('Hello <%= name %>\n', { name : 'World'} ))
  .pipe(gulp.dest('./dist/'))


// ES6-style template string
gulp.src('./foo/*.js')
  .pipe(header('Hello ${name}\n', { name : 'World'} ))
  .pipe(gulp.dest('./dist/'))


// using data from package.json
var pkg = require('./package.json');
var banner = ['/**',
  ' * <%= pkg.name %> - <%= pkg.description %>',
  ' * @version v<%= pkg.version %>',
  ' * @link <%= pkg.homepage %>',
  ' * @license <%= pkg.license %>',
  ' */',
  ''].join('\n');

gulp.src('./foo/*.js')
  .pipe(header(banner, { pkg : pkg } ))
  .pipe(gulp.dest('./dist/'))


// reading the header file from disk
var fs = require('fs');
gulp.src('./foo/*.js')
  .pipe(header(fs.readFileSync('header.txt', 'utf8'), { pkg : pkg } ))
  .pipe(gulp.dest('./dist/'))


// for use with coffee-script
return gulp.src([
        'src/*.coffee',
    ])
    .pipe(header(banner, { pkg : pkg } ))
    .pipe(sourcemaps.init()) // init sourcemaps *after* header
    .pipe(coffee({
        bare: true
    }))
    .pipe(sourcemaps.write('.'))
    .pipe(gulp.dest('dist/js'))

Issues and Alerts

My handle on twitter is @tracker1 - If there is an urgent issue, I get twitter notifications sent to my phone.

API

header(text, data)

text

Type: String Default: ''

The template text.

data

Type: Object Default: {}

The data object used to populate the text.

In addition to the passed in data, file will be the stream object for the file being templated against and filename will be the path relative from the stream's basepath.

NOTE: using false will disable template processing of the header