Merge pull request pahen#154 from realityking/drop-mz

Remove mz as a production dependency. Instead use pify for promisifying.

lib/graph.js

@@ -1,10 +1,12 @@
 'use strict';
 
 const path = require('path');
-const fs = require('mz/fs');
-const exec = require('mz/child_process').exec;
+const pify = require('pify');
 const graphviz = require('graphviz');
 
+const exec = pify(require('child_process').exec);
+const writeFile = pify(require('fs').writeFile);
+
 /**
  * Set color on a node.
  * @param  {Object} node
@@ -122,7 +124,7 @@ module.exports.image = function (modules, circular, imagePath, config) {
 	return checkGraphvizInstalled(config)
 		.then(() => {
 			return createGraph(modules, circular, config, options)
-				.then((image) => fs.writeFile(imagePath, image))
+				.then((image) => writeFile(imagePath, image))
 				.then(() => path.resolve(imagePath));
 		});
 };

lib/tree.js

@@ -1,13 +1,15 @@
 'use strict';
 
 const os = require('os');
-const fs = require('mz/fs');
 const path = require('path');
+const pify = require('pify');
 const commondir = require('commondir');
 const walk = require('walkdir');
 const dependencyTree = require('dependency-tree');
 const log = require('./log');
 
+const stat = pify(require('fs').stat);
+
 /**
  * Check if running on Windows.
  * @type {Boolean}
@@ -57,8 +59,7 @@ class Tree {
 	getDirs() {
 		return Promise
 			.all(this.srcPaths.map((srcPath) => {
-				return fs
-					.stat(srcPath)
+				return stat(srcPath)
 					.then((stats) => stats.isDirectory() ? srcPath : path.dirname(path.resolve(srcPath)));
 			}));
 	}
@@ -72,8 +73,7 @@ class Tree {
 
 		return Promise
 			.all(this.srcPaths.map((srcPath) => {
-				return fs
-					.stat(srcPath)
+				return stat(srcPath)
 					.then((stats) => {
 						if (stats.isFile()) {
 							files.push(path.resolve(srcPath));

package.json

@@ -45,8 +45,8 @@
     "debug": "^3.1.0",
     "dependency-tree": "^6.0.0",
     "graphviz": "^0.0.8",
-    "mz": "^2.7.0",
     "ora": "^1.4.0",
+    "pify": "^3.0.0",
     "pluralize": "^7.0.0",
     "pretty-ms": "^3.0.1",
     "rc": "^1.2.5",
@@ -56,6 +56,7 @@
     "@aptoma/eslint-config": "^7.0.1",
     "eslint": "^4.17.0",
     "mocha": "^5.0.0",
+    "mz": "^2.7.0",
     "should": "^13.2.1"
   }
 }