From 924c7eea147c3f6d3df775949fd76878d4ed7d67 Mon Sep 17 00:00:00 2001
From: popomore <sakura9515@gmail.com>
Date: Thu, 28 Aug 2014 20:09:59 +0800
Subject: [PATCH] Breaking: Add option to deep-clone properties, default to
 false (closes #29)

---
 index.js     | 15 +++++++++++----
 test/File.js | 36 +++++++++++++++++++++++++++++++++++-
 2 files changed, 46 insertions(+), 5 deletions(-)

diff --git a/index.js b/index.js
index e19234e..6faa797 100644
--- a/index.js
+++ b/index.js
@@ -1,8 +1,7 @@
 var path = require('path');
 
 var cloneStats = require('clone-stats');
-var _ = require('lodash');
-var cloneDeep = _.cloneDeep;
+var cloneDeep = require('lodash').cloneDeep;
 
 var isBuffer = require('./lib/isBuffer');
 var isStream = require('./lib/isStream');
@@ -45,12 +44,20 @@ File.prototype.isDirectory = function() {
   return this.isNull() && this.stat && this.stat.isDirectory();
 };
 
-File.prototype.clone = function() {
+File.prototype.clone = function(opt) {
+  if (typeof opt === 'boolean') {
+    opt = { deep: opt };
+  } else if (!opt) {
+    opt = { deep: false };
+  } else {
+    opt.deep = opt.deep || false;
+  }
+
   var clone = new File();
 
   Object.keys(this).forEach(function(key) {
     if (key !== '_contents' && key !== 'stat') {
-      clone[key] = cloneDeep(this[key]);
+      clone[key] = opt.deep === true ? cloneDeep(this[key]) : this[key];
     }
   }, this);
 
diff --git a/test/File.js b/test/File.js
index 3eed81e..58ab1d1 100644
--- a/test/File.js
+++ b/test/File.js
@@ -269,7 +269,7 @@ describe('File', function() {
       file2.cwd.should.equal(file.cwd);
       file2.base.should.equal(file.base);
       file2.path.should.equal(file.path);
-      file2.custom.should.not.equal(file.custom);
+      file2.custom.should.equal(file.custom);
       file2.custom.a.should.equal(file.custom.a);
 
       done();
@@ -302,6 +302,40 @@ describe('File', function() {
 
       done();
     });
+
+    it('should copy all attributes deeply', function(done) {
+      var options = {
+        cwd: '/',
+        base: '/test/',
+        path: '/test/test.coffee',
+        contents: null
+      };
+
+      var file = new File(options);
+      file.custom = { a: 'custom property' };
+
+      var file2 = file.clone(true);
+      file2.custom.should.eql(file.custom);
+      file2.custom.should.not.equal(file.custom);
+      file2.custom.a.should.equal(file.custom.a);
+
+      var file3 = file.clone({ deep: true });
+      file3.custom.should.eql(file.custom);
+      file3.custom.should.not.equal(file.custom);
+      file3.custom.a.should.equal(file.custom.a);
+
+      var file4 = file.clone(false);
+      file4.custom.should.eql(file.custom);
+      file4.custom.should.equal(file.custom);
+      file4.custom.a.should.equal(file.custom.a);
+
+      var file5 = file.clone({ deep: false });
+      file5.custom.should.eql(file.custom);
+      file5.custom.should.equal(file.custom);
+      file5.custom.a.should.equal(file.custom.a);
+
+      done();
+    });
   });
 
   describe('pipe()', function() {