From 176260a035f4d6e5d82cceedebe24bcd83fac6a1 Mon Sep 17 00:00:00 2001
From: Luke Page <luke.a.page@gmail.com>
Date: Sat, 14 Sep 2013 19:33:08 +0100
Subject: [PATCH] allow sourcemaps to be inline, in the css

---
 bin/lessc                     | 12 +++++++-----
 lib/less/source-map-output.js | 19 +++++++++++++++----
 2 files changed, 22 insertions(+), 9 deletions(-)

diff --git a/bin/lessc b/bin/lessc
index 499df63b..487283bc 100755
--- a/bin/lessc
+++ b/bin/lessc
@@ -247,11 +247,13 @@ if (options.depends) {
     sys.print(outputbase + ": ");
 }
 
-var writeSourceMap = function(output) {
-    var filename = options.sourceMapFullFilename || options.sourceMap;
-    ensureDirectory(filename);
-    fs.writeFileSync(filename, output, 'utf8');
-};
+if (options.sourceMap !== "inline") {
+    var writeSourceMap = function(output) {
+        var filename = options.sourceMapFullFilename || options.sourceMap;
+        ensureDirectory(filename);
+        fs.writeFileSync(filename, output, 'utf8');
+    };
+}
 
 var parseLessFile = function (e, data) {
     if (e) {
diff --git a/lib/less/source-map-output.js b/lib/less/source-map-output.js
index 821cfc9f..8ecf9ffa 100644
--- a/lib/less/source-map-output.js
+++ b/lib/less/source-map-output.js
@@ -1,5 +1,4 @@
 (function (tree) {
-    var sourceMap = require("source-map");
 
     tree.sourceMapOutput = function (options) {
         this._css = [];
@@ -11,6 +10,7 @@
         this._sourceMapBasepath = options.sourceMapBasepath;
         this._sourceMapRootpath = options.sourceMapRootpath;
         this._outputSourceFiles = options.outputSourceFiles;
+        this._sourceMapGeneratorConstructor = options.sourceMapGenerator || require("source-map").SourceMapGenerator;
 
         if (this._sourceMapRootpath && this._sourceMapRootpath.charAt(this._sourceMapRootpath.length-1) !== '/') {
             this._sourceMapRootpath += '/';
@@ -66,7 +66,7 @@
     };
 
     tree.sourceMapOutput.prototype.toCSS = function(env) {
-        this._sourceMapGenerator = new sourceMap.SourceMapGenerator({ file: this._outputFilename, sourceRoot: null });
+        this._sourceMapGenerator = new this._sourceMapGeneratorConstructor({ file: this._outputFilename, sourceRoot: null });
 
         if (this._outputSourceFiles) {
             for(var filename in this._contentsMap) {
@@ -77,10 +77,21 @@
         this._rootNode.genCSS(env, this);
 
         if (this._css.length > 0) {
-            this._writeSourceMap(JSON.stringify(this._sourceMapGenerator.toJSON()));
+            var sourceMapFilename,
+                sourceMapContent = JSON.stringify(this._sourceMapGenerator.toJSON());
 
             if (this._sourceMapFilename) {
-                this._css.push("/*# sourceMappingURL=" + this.normalizeFilename(this._sourceMapFilename) + " */");
+                sourceMapFilename = this.normalizeFilename(this._sourceMapFilename);
+            }
+
+            if (this._writeSourceMap) {
+                this._writeSourceMap(sourceMapContent);
+            } else {
+                sourceMapFilename = "data:application/json," + encodeURIComponent(sourceMapContent);
+            }
+
+            if (sourceMapFilename) {
+                this._css.push("/*# sourceMappingURL=" + sourceMapFilename + " */");
             }
         }