From 1b2f9a48c79a23bcb8d79f07d2479478fb04de74 Mon Sep 17 00:00:00 2001
From: Blaine Bublitz <blaine.bublitz@gmail.com>
Date: Wed, 19 Apr 2017 15:55:03 -0500
Subject: [PATCH] Breaking: Remove extra newline added before sourcemap comment

---
 lib/helpers.js | 13 ++++++-------
 package.json   |  3 +--
 test/write.js  | 12 ++++++------
 3 files changed, 13 insertions(+), 15 deletions(-)

diff --git a/lib/helpers.js b/lib/helpers.js
index 46cb4af..c080e65 100644
--- a/lib/helpers.js
+++ b/lib/helpers.js
@@ -6,9 +6,11 @@ var fs = require('graceful-fs');
 var File = require('vinyl');
 var async = require('async');
 var convert = require('convert-source-map');
-var stripBom = require('strip-bom');
-var detectNewline = require('detect-newline');
 var normalizePath = require('normalize-path');
+var fileNormalize = require('file-normalize');
+
+var stripBom = fileNormalize.stripBOM;
+var appendBuffer = fileNormalize.appendBuffer;
 
 var urlRegex = /^(https?|webpack(-[^:]+)?):\/\//;
 
@@ -200,9 +202,6 @@ function createSourceMapFile(opts) {
 
 // TODO: any way to make this function not require file?
 function commentFormatter(file, url) {
-  // TODO: can this be built into convert-source-map?
-  var newline = detectNewline(file.contents.toString());
-
   // TODO: Not sure I agree with this
   if (file.extname !== '.js' && file.extname !== '.css') {
     return '';
@@ -212,7 +211,7 @@ function commentFormatter(file, url) {
     multiline: (file.extname === '.css')
   };
 
-  return newline + convert.generateMapFileComment(url, opts) + newline;
+  return convert.generateMapFileComment(url, opts);
 }
 
 function includeContent(file, state, options, callback) {
@@ -306,7 +305,7 @@ function contentIncluded(file, state, options, callback) {
 
   // append source map comment
   if (options.addComment) {
-    file.contents = Buffer.concat([file.contents, new Buffer(comment)]);
+    file.contents = appendBuffer(file.contents, comment);
   }
 
   callback();
diff --git a/package.json b/package.json
index 666ea0b..20948d4 100644
--- a/package.json
+++ b/package.json
@@ -24,11 +24,10 @@
   "dependencies": {
     "async": "^2.1.4",
     "convert-source-map": "1.3.0",
-    "detect-newline": "^2.1.0",
+    "file-normalize": "^1.1.0",
     "graceful-fs": "^4.1.6",
     "normalize-path": "^2.1.1",
     "object.defaults": "^1.0.0",
-    "strip-bom": "^2.0.0",
     "through2": "^2.0.1",
     "vinyl": "^1.2.0"
   }
diff --git a/test/write.js b/test/write.js
index 9121c38..4108e0d 100644
--- a/test/write.js
+++ b/test/write.js
@@ -183,7 +183,7 @@ describe('write', function() {
 			// TODO: Vinyl.isVinyl
 			expect(updatedFile instanceof File).toExist();
 			expect(updatedFile).toEqual(file);
-			expect(String(updatedFile.contents)).toBe( sourceContent + '\n//# sourceMappingURL=' + base64JSON(updatedFile.sourceMap) + '\n');
+			expect(String(updatedFile.contents)).toBe( sourceContent + '//# sourceMappingURL=' + base64JSON(updatedFile.sourceMap) + '\n');
 			done(err);
 		});
 	});
@@ -192,7 +192,7 @@ describe('write', function() {
 		var file = makeFile();
 		file.path = file.path.replace('.js', '.css');
 		sourcemaps.write(file, function(err, updatedFile) {
-			expect(String(updatedFile.contents)).toBe(sourceContent + '\n/*# sourceMappingURL=' + base64JSON(updatedFile.sourceMap) + ' */\n');
+			expect(String(updatedFile.contents)).toBe(sourceContent + '/*# sourceMappingURL=' + base64JSON(updatedFile.sourceMap) + ' */\n');
 			done(err);
 		});
 	});
@@ -210,7 +210,7 @@ describe('write', function() {
 		var file = makeFile();
 		file.contents = new Buffer(file.contents.toString().replace(/\n/g, '\r\n'));
 		sourcemaps.write(file, function(err, updatedFile) {
-			expect(String(updatedFile.contents)).toBe(sourceContent.replace(/\n/g, '\r\n') + '\r\n//# sourceMappingURL=' + base64JSON(updatedFile.sourceMap) + '\r\n');
+			expect(String(updatedFile.contents)).toBe(sourceContent.replace(/\n/g, '\r\n') + '//# sourceMappingURL=' + base64JSON(updatedFile.sourceMap) + '\r\n');
 			done(err);
 		});
 	});
@@ -220,7 +220,7 @@ describe('write', function() {
 		sourcemaps.write(file, { path: '../maps', destPath: 'dist' }, function(err, updatedFile, sourceMapFile) {
 			expect(updatedFile instanceof File).toExist();
 			expect(updatedFile).toEqual(file);
-			expect(String(updatedFile.contents)).toBe(sourceContent + '\n//# sourceMappingURL=../maps/helloworld.js.map\n');
+			expect(String(updatedFile.contents)).toBe(sourceContent + '//# sourceMappingURL=../maps/helloworld.js.map\n');
 			expect(updatedFile.sourceMap.file).toBe('../dist/helloworld.js');
 			expect(sourceMapFile instanceof File).toExist();
 			expect(sourceMapFile.path).toBe(path.join(__dirname, 'maps/helloworld.js.map'));
@@ -239,7 +239,7 @@ describe('write', function() {
 	it('should create shortest path to map in file comment', function(done) {
 		var file = makeNestedFile();
 		sourcemaps.write(file, { path: 'dir1/maps' }, function(err, updatedFile) {
-			expect(String(updatedFile.contents)).toBe(sourceContent + '\n//# sourceMappingURL=../maps/dir1/dir2/helloworld.js.map\n');
+			expect(String(updatedFile.contents)).toBe(sourceContent + '//# sourceMappingURL=../maps/dir1/dir2/helloworld.js.map\n');
 			done(err);
 		});
 	});
@@ -428,7 +428,7 @@ describe('write', function() {
 			}
 		}, function(err, updatedFile) {
 			if (/helloworld\.js$/.test(updatedFile.path)) {
-				expect(String(updatedFile.contents)).toBe(sourceContent + '\n//# sourceMappingURL=http://maps.example.com/dir1/dir2/helloworld.js.map\n');
+				expect(String(updatedFile.contents)).toBe(sourceContent + '//# sourceMappingURL=http://maps.example.com/dir1/dir2/helloworld.js.map\n');
 				done(err);
 			}
 		});