(function() {

"use strict";

var gulp = require("gulp");

var eslint = require("gulp-eslint");

var uglify = require("gulp-uglify");

var mocha = require("gulp-spawn-mocha");

var rename = require("gulp-rename");

var Server = require("karma").Server;

var path = require("path");

var fs = require("fs");

gulp.task("lint", function() {

return gulp.src(["*.js", "src/*.js", "test/*.js"])

.pipe(eslint())

.pipe(eslint.format())

.pipe(eslint.failAfterError());

});

gulp.task("lint:build", function() {

return gulp.src(["*.js", "src/*.js", "test/*.js"])

.pipe(eslint())

.pipe(eslint.format())

.pipe(eslint.format("checkstyle", fs.createWriteStream("eslint.xml")));

});

gulp.task("compress", function() {

return gulp.src("src/*.js")

.pipe(rename({

suffix: ".min"

}))

.pipe(uglify({ mangle: true }))

.pipe(gulp.dest("dist"));

});

gulp.task("mocha", function() {

return gulp.src("test/test-*.js",

{

read: false

})

.pipe(mocha());

});

gulp.task("mocha-tap", gulp.series("mocha", function() {

return gulp.src("test/test-*.js",

{

read: false

})

.pipe(mocha({

reporter: "tap",

output: "./test/mocha.tap"

}));

}));

gulp.task("karma", gulp.series("mocha", "mocha-tap", function(done) {

new Server({

configFile: path.join(__dirname, "karma.config.js"),

singleRun: true

}, done).start();

}));

gulp.task("test", gulp.series("mocha", "mocha-tap", "karma"));

gulp.task("default", gulp.series("lint", "lint:build", "compress", "test"));

gulp.task("all", gulp.series("default"));

gulp.task("travis", gulp.series("default"));

}());