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'use strict';
var util = require('util');
var Undertaker = require('undertaker');
var vfs = require('vinyl-fs');
var watch = require('glob-watcher');
function Gulp() {
Undertaker.call(this);
// Bind the functions for destructuring
this.watch = this.watch.bind(this);
this.task = this.task.bind(this);
this.series = this.series.bind(this);
this.parallel = this.parallel.bind(this);
this.registry = this.registry.bind(this);
this.tree = this.tree.bind(this);
this.lastRun = this.lastRun.bind(this);
this.src = this.src.bind(this);
this.dest = this.dest.bind(this);
this.symlink = this.symlink.bind(this);
}
util.inherits(Gulp, Undertaker);
Gulp.prototype.src = vfs.src;
Gulp.prototype.dest = vfs.dest;
Gulp.prototype.symlink = vfs.symlink;
Gulp.prototype.watch = function(glob, opt, task) {
if (typeof opt === 'string' || typeof task === 'string' ||
Array.isArray(opt) || Array.isArray(task)) {
throw new Error('watching ' + glob + ': watch task has to be ' +
'a function (optionally generated by using gulp.parallel ' +
'or gulp.series)');
}
if (typeof opt === 'function') {
task = opt;
opt = {};
}
opt = opt || {};
var fn;
if (typeof task === 'function') {
fn = this.parallel(task);
}
return watch(glob, opt, fn);
};
// Let people use this class from our instance
Gulp.prototype.Gulp = Gulp;
var inst = new Gulp();
module.exports = inst;