Replaced gulp-util dependency with fancy-log.

gulpfile.babel.js

@@ -2,7 +2,7 @@ const through = require("through2");
 const chalk = require("chalk");
 const newer = require("gulp-newer");
 const babel = require("gulp-babel");
-const gutil = require("gulp-util");
+const log = require("fancy-log");
 const gulp = require("gulp");
 const path = require("path");
 
@@ -39,7 +39,7 @@ function getBuildTask({ scripts, dest }) {
     .pipe(newer(dest))
     .pipe(
       through.obj((file, enc, callback) => {
-        gutil.log("Compiling", "'" + chalk.cyan(file._path) + "'...");
+        log("Compiling", "'" + chalk.cyan(file._path) + "'...");
         callback(null, file);
       })
     )

package.json

@@ -35,12 +35,12 @@
     "commander": "^2.12.2",
     "eslint": "^4.13.1",
     "eslint-plugin-prettier": "^2.4.0",
+    "fancy-log": "^1.3.2",
     "fs-readdir-recursive": "^1.1.0",
     "google-closure-compiler-js": "^20171203.0.0",
     "gulp": "github:gulpjs/gulp#4.0",
     "gulp-babel": "^7.0.0",
     "gulp-newer": "^1.3.0",
-    "gulp-util": "^3.0.8",
     "jest-cli": "^22.0.3",
     "lerna": "^2.5.1",
     "lerna-changelog": "^0.7.0",

yarn.lock

@@ -172,6 +172,12 @@ ansi-escapes@^3.0.0:
   version "3.0.0"
   resolved "https://registry.yarnpkg.com/ansi-escapes/-/ansi-escapes-3.0.0.tgz#ec3e8b4e9f8064fc02c3ac9b65f1c275bda8ef92"
 
+ansi-gray@^0.1.1:
+  version "0.1.1"
+  resolved "https://registry.yarnpkg.com/ansi-gray/-/ansi-gray-0.1.1.tgz#2962cf54ec9792c48510a3deb524436861ef7251"
+  dependencies:
+    ansi-wrap "0.1.0"
+
 ansi-red@^0.1.1:
   version "0.1.1"
   resolved "https://registry.yarnpkg.com/ansi-red/-/ansi-red-0.1.1.tgz#8c638f9d1080800a353c9c28c8a81ca4705d946c"
@@ -1423,6 +1429,10 @@ color-name@^1.1.1:
   version "1.1.3"
   resolved "https://registry.yarnpkg.com/color-name/-/color-name-1.1.3.tgz#a7d0558bd89c42f795dd42328f740831ca53bc25"
 
+color-support@^1.1.3:
+  version "1.1.3"
+  resolved "https://registry.yarnpkg.com/color-support/-/color-support-1.1.3.tgz#93834379a1cc9a0c61f82f52f0d04322251bd5a2"
+
 colors@1.0.3:
   version "1.0.3"
   resolved "https://registry.yarnpkg.com/colors/-/colors-1.0.3.tgz#0433f44d809680fdeb60ed260f1b0c262e82a40b"
@@ -2233,6 +2243,14 @@ fancy-log@^1.1.0:
     chalk "^1.1.1"
     time-stamp "^1.0.0"
 
+fancy-log@^1.3.2:
+  version "1.3.2"
+  resolved "https://registry.yarnpkg.com/fancy-log/-/fancy-log-1.3.2.tgz#f41125e3d84f2e7d89a43d06d958c8f78be16be1"
+  dependencies:
+    ansi-gray "^0.1.1"
+    color-support "^1.1.3"
+    time-stamp "^1.0.0"
+
 fast-deep-equal@^1.0.0:
   version "1.0.0"
   resolved "https://registry.yarnpkg.com/fast-deep-equal/-/fast-deep-equal-1.0.0.tgz#96256a3bc975595eb36d82e9929d060d893439ff"
@@ -2764,7 +2782,7 @@ gulp-sourcemaps@1.6.0:
     through2 "^2.0.0"
     vinyl "^1.0.0"
 
-gulp-util@^3.0.0, gulp-util@^3.0.7, gulp-util@^3.0.8:
+gulp-util@^3.0.0, gulp-util@^3.0.7:
   version "3.0.8"
   resolved "https://registry.yarnpkg.com/gulp-util/-/gulp-util-3.0.8.tgz#0054e1e744502e27c04c187c3ecc505dd54bbb4f"
   dependencies: