DefinitelyTyped/types/gulp-useref/gulp-useref-tests.ts

import * as gulp from 'gulp';
import useref = require('gulp-useref');

// Usage
gulp.task('default', function () {
    return gulp.src('app/*.html')
        .pipe(useref())
        .pipe(gulp.dest('dist'));
});

gulp.task('default', function () {
    return gulp.src('app/*.html')
        .pipe(useref({ searchPath: '.tmp' }))
        .pipe(gulp.dest('dist'));
});

import gulpif = require('gulp-if');
import uglify = require('gulp-uglify');
import minifyCss = require('gulp-minify-css');

gulp.task('html', function () {
    return gulp.src('app/*.html')
        .pipe(useref())
        .pipe(gulpif(f => f.path.endsWith('.js'), uglify()))
        .pipe(gulpif(f => f.path.endsWith('.css'), minifyCss()))
        .pipe(gulp.dest('dist'));
});


// Transform Streams
import * as sourcemaps from 'gulp-sourcemaps';
import lazypipe = require('lazypipe');

gulp.task('default', function () {
    return gulp.src('index.html')
        .pipe(useref({}, lazypipe().pipe(sourcemaps.init, { loadMaps: true })()))
        .pipe(sourcemaps.write('maps'))
        .pipe(gulp.dest('dist'));
});


// options.additionalStreams
declare function ts(): any;

// create stream of virtual files
var tsStream = gulp.src('src/**/*.ts')
        .pipe(ts());

gulp.task('default', function () {
    // use gulp-useref normally
    return gulp.src('src/index.html')
        .pipe(useref({ additionalStreams: [tsStream] }))
        .pipe(gulp.dest('dist'));
});


// options.transformPath
gulp.task('default', function () {
    return gulp.src('app/*.html')
        .pipe(useref({
            transformPath: function(filePath) {
                return filePath.replace('/rootpath','')
            }
        }))
        .pipe(gulp.dest('dist'));
});