Use runtime libsass version

Return real libsass version
information - in when a shared library
is used this version may be changed
even without recompilation

libsass version in the package.json
file is now used only for checking
out the bundled libsass library
from the git submodule

README.md

@@ -354,7 +354,7 @@ console.log(result.stats);
 
 ### Version information (>= v2.0.0)
 
-Both `node-sass` and `libsass` version info is now present in `package.json` and is exposed via `info` method:
+Both `node-sass` and `libsass` version info is now exposed via the `info` method:
 
 ```javascript
 var sass = require('node-sass');
@@ -369,6 +369,8 @@ console.log(sass.info);
 */
 ```
 
+Since node-sass >=v3.0.0 libsass version is determined at run time.
+
 ## Integrations
 
 Listing of community uses of node-sass in build tools and frameworks.

binding.gyp

@@ -22,7 +22,7 @@
         '<!(node -e "require(\'nan\')")',
       ],
       'conditions': [
-        ['libsass_ext == ""', {
+        ['libsass_ext == "" or libsass_ext == "no"', {
           'dependencies': [
             'src/libsass.gyp:libsass',
           ]

lib/extensions.js

@@ -2,8 +2,7 @@
  * node-sass: lib/extensions.js
  */
 
-var eol = require('os').EOL,
-    flags = {},
+var flags = {},
     fs = require('fs'),
     package = require('../package.json'),
     path = require('path');
@@ -109,18 +108,6 @@ function getBinaryUrl() {
 	return [site, 'v' + package.version, sass.binaryName].join('/');
 }
 
-/**
- * Get Sass version information
- *
- * @api private
- */
-
-function getVersionInfo() {
-  return [
-           ['node-sass', package.version, '(Wrapper)', '[JavaScript]'].join('\t'),
-           ['libsass  ', package.libsass, '(Sass Compiler)', '[C/C++]'].join('\t'),
-  ].join(eol);
-}
 
 collectArguments(process.argv.slice(2));
 
@@ -129,7 +116,6 @@ var sass = process.sass = {};
 sass.binaryName = getBinaryName();
 sass.binaryUrl = getBinaryUrl();
 sass.runtime = getRuntimeInfo();
-sass.versionInfo = getVersionInfo();
 
 /**
  * Get binary path.

lib/index.js

@@ -2,8 +2,10 @@
  * node-sass: lib/index.js
  */
 
-var path = require('path'),
-    util = require('util');
+var eol = require('os').EOL,
+    path = require('path'),
+    util = require('util'),
+    package = require('../package.json');
 
 require('./extensions');
 
@@ -14,6 +16,19 @@ require('./extensions');
 var binding = require(process.sass.getBinaryPath(true));
 
 /**
+ * Get Sass version information
+ *
+ * @api private
+ */
+
+function getVersionInfo(binding) {
+  return [
+           ['node-sass', package.version, '(Wrapper)', '[JavaScript]'].join('\t'),
+           ['libsass  ', binding.libsassVersion(), '(Sass Compiler)', '[C/C++]'].join('\t'),
+  ].join(eol);
+}
+
+/**
  * Get input file
  *
  * @param {Object} options
@@ -400,6 +415,7 @@ module.exports.renderSync = function(options) {
  * @api public
  */
 
+process.sass.versionInfo = getVersionInfo(binding);
 module.exports.info = process.sass.versionInfo;
 
 /**

src/binding.cpp

@@ -302,11 +302,17 @@ NAN_METHOD(render_file_sync) {
   NanReturnValue(NanNew<Boolean>(result == 0));
 }
 
+NAN_METHOD(libsass_version) {
+  NanScope();
+  NanReturnValue(NanNew<String>(libsass_version()));
+}
+
 void RegisterModule(v8::Handle<v8::Object> target) {
   NODE_SET_METHOD(target, "render", render);
   NODE_SET_METHOD(target, "renderSync", render_sync);
   NODE_SET_METHOD(target, "renderFile", render_file);
   NODE_SET_METHOD(target, "renderFileSync", render_file_sync);
+  NODE_SET_METHOD(target, "libsassVersion", libsass_version);
   SassTypes::Factory::initExports(target);
 }
 

src/libsass.gyp

@@ -3,6 +3,9 @@
     {
       'target_name': 'libsass',
       'type': 'static_library',
+      'defines': [
+         'LIBSASS_VERSION="<!(node -e "process.stdout.write(require(\'../package.json\').libsass)")"'
+      ],
       'sources': [
         'libsass/ast.cpp',
         'libsass/base64vlq.cpp',
@@ -52,7 +55,7 @@
       ],
       'cflags_cc': [
         '-fexceptions',
-        '-frtti'
+        '-frtti',
       ],
       'direct_dependent_settings': {
         'include_dirs': [ 'libsass' ],

test/api.js

@@ -1410,7 +1410,7 @@ describe('api', function() {
       assert(info.indexOf(package.version) > 0);
       assert(info.indexOf('(Wrapper)') > 0);
       assert(info.indexOf('[JavaScript]') > 0);
-      assert(info.indexOf(package.libsass) > 0);
+      assert(info.indexOf('[NA]') < 0);
       assert(info.indexOf('(Sass Compiler)') > 0);
       assert(info.indexOf('[C/C++]') > 0);