fix errors in windows

index.js

@@ -2,6 +2,7 @@
 var gutil = require('gulp-util');
 var through = require('through2');
 var execSync = require('child_process').execSync;
+var path = require('path');
 
 function diffBranches(options) {
     var filesChanged = [];
@@ -11,13 +12,19 @@ function diffBranches(options) {
     }
 
     var cmd = 'git diff --name-only $(git merge-base ' + options.baseBranch + ' HEAD)..HEAD';
-    filesChanged = execSync(cmd, {encoding: 'utf8'});
-    filesChanged = filesChanged.split("\n");
+    if (process.platform === 'win32') {
+        cmd = 'powershell -NoProfile ' + cmd;
+    }
+    const executeResult = execSync(cmd, {encoding: 'utf8'});
+    if (executeResult) {
+        filesChanged = executeResult.split("\n").map(filePath => path.resolve(filePath));
+    }
+
     // last entry is just empty string
     filesChanged.pop();
 
     return through.obj(
-        function (file, enc, cb) {
+        function (file, _enc, cb) {
             if (isFileChanged(file, filesChanged)) {
                 this.push(file);
             }
@@ -27,8 +34,7 @@ function diffBranches(options) {
 };
 
 function isFileChanged(file, filesChanged) {
-    var currentFile = file.path.substr(process.cwd().length + 1);
-    if (filesChanged.indexOf(currentFile) != -1) {
+    if (filesChanged.indexOf(file.path) != -1) {
         return true;
     } else {
         return false;

package.json

@@ -7,8 +7,8 @@
     "test": "./node_modules/mocha/bin/mocha"
   },
   "author": {
-      "name" : "Alexander Myshov",
-      "url": "https://github.com/myshov"
+    "name": "Alexander Myshov",
+    "url": "https://github.com/myshov"
   },
   "repository": {
     "type": "git",
@@ -27,6 +27,8 @@
     "node": ">=0.12.0"
   },
   "keywords": [
-    "gulpplugin", "git", "filtering"
+    "gulpplugin",
+    "git",
+    "filtering"
   ]
 }

test/isFileChanged.js

@@ -1,41 +1,32 @@
 var assert = require('assert');
 var rewire = require('rewire');
+var path = require('path');
 
 var gulpGitFlowDiff = rewire('../');
-gulpGitFlowDiff.__set__({
-    process: {
-        cwd: function() {
-            return '/home/user/dev'
-        }
-    }
-});
 
 describe('gulp-giflow-diff isFileChanged', function() {
-    process.cwd = function() {
-        return '/home/user/dev'
-    };
-
+    const basePath = process.cwd();
     it('should return true if there is file in list of changed files', function(done) {
         var fileMocked = {};
-        fileMocked.path = '/home/user/dev/src/file33.js';
+        fileMocked.path = path.join(basePath, 'src/file33.js');
         var filesChanged = [
             'src/file11.js',
             'src/file22.js',
             'src/file33.js'
-        ];
+        ].map(filePath => path.join(basePath, filePath));
         var result = gulpGitFlowDiff.isFileChanged(fileMocked, filesChanged);
         assert.equal(result, true);
         done();
     });
 
     it('should return false if there is no file in list of changed files', function(done) {
         var fileMocked = {};
-        fileMocked.path = '/usr/home/user/dev/src/file44.js';
+        fileMocked.path = path.join(basePath, 'src/file44.js');
         var filesChanged = [
             'src/file11.js',
             'src/file22.js',
             'src/file33.js'
-        ];
+        ].map(filePath => path.join(basePath, filePath));
         var result = gulpGitFlowDiff.isFileChanged(fileMocked, filesChanged);
         assert.equal(result, false);
         done();