set chmod flag by default on Windows

Gruntfile.js

@@ -33,7 +33,8 @@ module.exports = function(grunt) {
                     "tests/src-as-array.js",
                     "tests/remote-host.js",
                     "tests/remote-dest.js",
-                    "tests/remote-src.js"
+                    "tests/remote-src.js",
+                    "tests/win32-chmod.js"
                 ],
                 options: {
                     reporter: "spec",

lib/rsyncwrapper.js

@@ -31,6 +31,13 @@ exports.rsync = function (options,callback) {
 
     args.push(dest);
 
+    // [rsync failed on windows, copying persmissions](https://github.com/jedrichards/rsyncwrapper/issues/28)
+    // [set chmod flag by default on Windows](https://github.com/jedrichards/rsyncwrapper/pull/29)
+    var chmodArg = _.find(options.args, function (arg) { return arg.match(/--chmod=/); });
+    if ( 'win32' === process.platform && !chmodArg) {
+        args.push("--chmod=ugo=rwX");
+    }
+
     if (( typeof options.host !== "undefined" ) || ( options.ssh )) {
         args.push("--rsh");
         var rshCmd = "ssh";

tests/win32-chmod.js

@@ -0,0 +1,54 @@
+"use strict";
+
+var fs = require("fs");
+var vows = require("vows");
+var assert = require("assert");
+var rsync = require("../lib/rsyncwrapper").rsync;
+
+var srcFile = "single.txt";
+var srcFilePath = "[email protected]:tests/fixtures/"+srcFile;
+var destDir = "./tmp/";
+var copiedFile = destDir+srcFile;
+
+exports.suite = vows.describe("Set defaul chmod for windows platform").addBatch({
+    "When the platform is not win32": {
+        topic: function() {
+            process.platform = 'linux';
+            rsync({
+                src: srcFilePath,
+                dest: destDir,
+                noExec: true
+            },this.callback);
+        },
+        "results in an rsync command that does not contains --chmod=ugo=rwX": function(error,stdout,stderr,cmd) {
+            assert.equal(cmd, 'rsync [email protected]:tests/fixtures/single.txt ./tmp/');
+        }
+    },
+    "When there is no existing chmod argument": {
+        topic: function() {
+            process.platform = 'win32';
+            rsync({
+                src: srcFilePath,
+                dest: destDir,
+                noExec: true
+            },this.callback);
+        },
+        "results in an rsync command that contains --chmod=ugo=rwX": function(error,stdout,stderr,cmd) {
+            assert.equal(cmd, 'rsync [email protected]:tests/fixtures/single.txt ./tmp/ --chmod=ugo=rwX');
+        }
+    },
+    "When there is and existing chmod argument": {
+        topic: function() {
+            process.platform = 'win32';
+            rsync({
+                src: srcFilePath,
+                dest: destDir,
+                noExec: true,
+                args: ['--chmod=u=r']
+            },this.callback);
+        },
+        "results in an rsync command that does not override chmod argument": function(error,stdout,stderr,cmd) {
+            assert.equal(cmd, 'rsync [email protected]:tests/fixtures/single.txt ./tmp/ --chmod=u=r');
+        }
+    }
+});