1 files changed, 97 insertions, 2 deletions

diff --git a/Gruntfile.js b/Gruntfile.js
index 7abe1795..247d3c40 100644
--- a/Gruntfile.js
+++ b/Gruntfile.js
@@ -1,6 +1,7 @@
 module.exports = function (grunt) {
   grunt.loadNpmTasks('grunt-autoprefixer');
   grunt.loadNpmTasks('grunt-contrib-less');
+  grunt.loadNpmTasks('grunt-contrib-sass');
   grunt.loadNpmTasks('grunt-contrib-concat');
   grunt.loadNpmTasks('grunt-contrib-connect');
   grunt.loadNpmTasks('grunt-contrib-clean');
@@ -28,7 +29,7 @@ module.exports = function (grunt) {
     },
     clean: {
       build: {
-        src: ['*/build.less', '!global/build.less']
+        src: ['*/build.less', '*/build.scss', '!global/build.less', '!global/build.scss']
       }
     },
     concat: {
@@ -118,6 +119,40 @@ module.exports = function (grunt) {
       compress ? 'compress:'+lessDest+':'+'<%=builddir%>/' + theme + '/bootstrap.min.css':'none']);
   });
 
+grunt.registerTask('build_scss', 'build a regular theme from scss', function(theme, compress) {
+    var theme = theme == undefined ? grunt.config('buildtheme') : theme;
+    var compress = compress == undefined ? true : compress;
+
+    var isValidTheme = grunt.file.exists(theme, '_variables.scss') && grunt.file.exists(theme, '_bootswatch.scss');
+
+     // cancel the build (without failing) if this directory is not a valid theme
+    if (!isValidTheme) {
+      return;
+    }
+    var concatSrc;
+    var concatDest;
+    var scssDest;
+    var scssSrc;
+    var files = {};
+    var dist = {};
+    concatSrc = 'global/build.scss';
+    concatDest = theme + '/build.scss';
+    scssDest = '<%=builddir%>/' + theme + '/bootstrap.css';
+    scssSrc = [theme + '/' + 'build.scss'];
+
+    dist = {src: concatSrc, dest: concatDest};
+    grunt.config('concat.dist', dist);
+    files = {};
+    files[scssDest] = scssSrc;
+    grunt.config('sass.dist.files', files);
+    grunt.config('sass.dist.options.style', 'expanded');
+    grunt.config('sass.dist.options.precision', 8);
+    grunt.config('sass.dist.options.unix-newlines', true);
+ 
+    grunt.task.run(['concat', 'sass:dist', 'prefix:' + scssDest, 'clean:build',
+        compress ? 'compress_scss:' + scssDest + ':' + '<%=builddir%>/' + theme + '/bootstrap.min.css' : 'none']);
+  });
+  
   grunt.registerTask('prefix', 'autoprefix a generic css', function(fileSrc) {
     grunt.config('autoprefixer.dist.src', fileSrc);
     grunt.task.run('autoprefixer');
@@ -132,18 +167,78 @@ module.exports = function (grunt) {
     grunt.task.run(['less:dist']);
   });
 
+  grunt.registerTask('compress_scss', 'compress a generic css with sass', function(fileSrc, fileDst) {
+    var files = {}; files[fileDst] = fileSrc;
+    grunt.log.writeln('compressing file ' + fileSrc);
+
+    grunt.config('sass.dist.files', files);
+    grunt.config('sass.dist.options.style', 'compressed');
+    grunt.task.run(['sass:dist']);
+  });
+
   grunt.registerMultiTask('swatch', 'build a theme', function() {
     var t = this.target;
     grunt.task.run('build:'+t);
   });
 
+  grunt.registerTask('swatch_scss', 'build a theme from scss ', function (theme) {
+    var t = theme;
+    if (!t) {
+      for (var t in grunt.config('swatch')) {
+        grunt.task.run('build_scss:' + t);
+      }
+    } else {
+      grunt.task.run('build_scss:' + t);
+    }
+  });
+
   grunt.event.on('watch', function(action, filepath) {
     var path = require('path');
     var theme = path.dirname(filepath);
     grunt.config('buildtheme', theme);
   });
 
-  grunt.registerTask('server', 'connect:keepalive')
+    /**
+     * Regex borrowed form
+     * https://gist.github.com/rosskevin/ddfe895091de2ca5f931
+     * */
+  grunt.registerTask('convert_less', 'Convert less to scss using regular expression', function () {
+    var convertBaseDir = '';
+    grunt.file.expand(convertBaseDir + '*/*.less').forEach(function (lessFile) {
+      if (lessFile !=="global/build.less"){
+        var srcContents = grunt.file.read(lessFile);
+        var out = srcContents
+                // 1.  replace @ with $
+                .replace(/@(?!import|media|keyframes|-)/g, '$')
+                // 2.  replace mixins
+                .replace(/[\.#](?![0-9])([\w\-]*)\s*\((.*)\)\s*\{/g, '@mixin $1($2){')
+                // 3.  In LESS, bootstrap namespaces mixins, in SASS they are just prefixed e.g #gradient > .vertical-three-colors becomes @include gradient-vertical-three-colors
+                .replace(/[\.#](?![0-9])([\w\-]*)\s>\s\.(.*;)/g, '@include $1-$2')
+                // 4.  replace includes
+                .replace(/[\.#](?![0-9])([\w\-].*\(.*;)/g, '@include $1')
+                // 5.  replace no param mixin includes with empty parens
+                .replace(/@include\s([\w\-]*\s*);/g, '@include $1();')
+                // 6.  replace extends .class; @extend .class;
+                .replace(/(\.(?![0-9])([\w\-]+);)/g, '@extend $1')
+                // 7.  replace string literals
+                .replace(/~"(.*)"/g, '#{"$1"}')
+                // 8.  replace interpolation  ${var} > #{$var} 
+                .replace(/\$\{(.*)\}/g, '#{$$$1}')
+                // 9.  replace spin to adjust-hue (function name diff)
+                .replace(/spin\(/g, 'adjust-hue(')
+                // 10. replace bower and imports in build.scss
+                .replace(/bootstrap\/less\//g, 'bootstrap-sass-official/assets/stylesheets/')
+                .replace(/\.less/g, '');
+
+        var baseDirRegex = new RegExp("^" + convertBaseDir, "g");
+        var sassFile = lessFile.replace(baseDirRegex, '').replace(/\.less$/, '.scss').replace(/(bootswatch|variables)/, '_$1');
+        grunt.file.write(sassFile, out);
+        grunt.log.writeln('Converted less file:  ', lessFile, Array(27 - lessFile.length).join(' '),'> ', sassFile);
+      }
+    });
+  });
+
+  grunt.registerTask('server', 'connect:keepalive');
 
   grunt.registerTask('default', ['connect:base', 'watch']);
 };