1 files changed, 185 insertions, 0 deletions
diff --git a/node_modules/express-minify/minifier.js b/node_modules/express-minify/minifier.js
new file mode 100644
index 0000000..504ed9d
--- /dev/null
+++ b/node_modules/express-minify/minifier.js
@@ -0,0 +1,185 @@
+var extend = require('util')._extend;
+
+/**
+ * Test whether a module exists.
+ * null for exists, false for not-exists.
+ */
+var testModule = function (name) {
+  var module = null;
+  try {
+    require.resolve(name);
+  } catch (ignore) {
+    module = false;
+  }
+  return module;
+};
+
+var Minifier = function (uglifyJS, cssmin, errorHandler) {
+  this.handleError = errorHandler || Minifier.defaultErrorHandler;
+  this.uglifyJS = uglifyJS || require('uglify-js');
+  this.cssmin = cssmin || require('cssmin');
+  this.sass = testModule('node-sass');
+  this.less = testModule('less');
+  this.stylus = testModule('stylus');
+  this.coffee = testModule('coffee-script');
+};
+
+Minifier.TYPE_TEXT = 0;
+Minifier.TYPE_JS = 1;
+Minifier.TYPE_CSS = 2;
+Minifier.TYPE_SASS = 3;
+Minifier.TYPE_LESS = 4;
+Minifier.TYPE_STYLUS = 5;
+Minifier.TYPE_COFFEE = 6;
+Minifier.TYPE_JSON = 7;
+
+Minifier.defaultErrorHandler = function (err, stage, assetType, minifyOptions, body, callback) {
+  if (stage === 'compile') {
+    callback(err, JSON.stringify(err));
+    return;
+  }
+  callback(err, body);
+};
+
+Minifier.prototype.compileAndMinify = function (assetType, minifyOptions, body, callback) {
+  if (typeof callback !== 'function') {
+    return;
+  }
+
+  var self = this;
+  var result, opt;
+
+  switch (assetType) {
+  case Minifier.TYPE_JS:
+    result = body;
+    try {
+      if (!minifyOptions.noMinify) {
+        opt = extend({fromString: true}, minifyOptions.uglifyOpt);
+        result = self.uglifyJS.minify(result, opt).code;
+      }
+    } catch (err) {
+      self.handleError(err, 'minify', assetType, minifyOptions, result, callback);
+      return;
+    }
+    callback(null, result);
+    break;
+  case Minifier.TYPE_CSS:
+    result = body;
+    try {
+      if (!minifyOptions.noMinify) {
+        result = self.cssmin(result);
+      }
+    } catch (err) {
+      self.handleError(err, 'minify', assetType, minifyOptions, result, callback);
+      return;
+    }
+    callback(null, result);
+    break;
+  case Minifier.TYPE_SASS:
+    if (!self.sass) {
+      self.sass = require('node-sass');
+    }
+    result = body;
+    try {
+      result = self.sass.renderSync({
+        data: result
+      }).css.toString();
+    } catch (err) {
+      self.handleError(err, 'compile', assetType, minifyOptions, result, callback);
+      return;
+    }
+    try {
+      if (!minifyOptions.noMinify) {
+        result = self.cssmin(result);
+      }
+    } catch (err) {
+      self.handleError(err, 'minify', assetType, minifyOptions, result, callback);
+      return;
+    }
+    callback(null, result);
+    break;
+  case Minifier.TYPE_LESS:
+    if (!self.less) {
+      self.less = require('less');
+    }
+    result = body;
+    self.less.render(result, function (err, output) {
+      if (err) {
+        self.handleError(err, 'compile', assetType, minifyOptions, result, callback);
+        return;
+      }
+      result = output.css;
+      try {
+        if (!minifyOptions.noMinify) {
+          result = self.cssmin(result);
+        }
+      } catch (err) {
+        self.handleError(err, 'minify', assetType, minifyOptions, result, callback);
+        return;
+      }
+      callback(null, result);
+    });
+    break;
+  case Minifier.TYPE_STYLUS:
+    if (!self.stylus) {
+      self.stylus = require('stylus');
+    }
+    result = body;
+    self.stylus.render(result, function (err, css) {
+      if (err) {
+        self.handleError(err, 'compile', assetType, minifyOptions, result, callback);
+        return;
+      }
+      result = css;
+      try {
+        if (!minifyOptions.noMinify) {
+          result = self.cssmin(result);
+        }
+      } catch (err) {
+        self.handleError(err, 'minify', assetType, minifyOptions, result, callback);
+        return;
+      }
+      callback(null, result);
+    });
+    break;
+  case Minifier.TYPE_COFFEE:
+    if (!self.coffee) {
+      self.coffee = require('coffee-script');
+    }
+    result = body;
+    try {
+      result = self.coffee.compile(result);
+    } catch (err) {
+      self.handleError(err, 'compile', assetType, minifyOptions, result, callback);
+      return;
+    }
+    try {
+      if (!minifyOptions.noMinify) {
+        opt = extend({fromString: true}, minifyOptions.uglifyOpt);
+        result = self.uglifyJS.minify(result, opt).code;
+      }
+    } catch (err) {
+      self.handleError(err, 'minify', assetType, minifyOptions, result, callback);
+      return;
+    }
+    callback(null, result);
+    break;
+  case Minifier.TYPE_JSON:
+    result = body;
+    try {
+      if (!minifyOptions.noMinify) {
+        result = JSON.stringify(JSON.parse(result));
+      }
+    } catch (err) {
+      self.handleError(err, 'minify', assetType, minifyOptions, result, callback);
+      return;
+    }
+    callback(null, result);
+    break;
+  default:
+    callback(null, body);
+    break;
+  }
+};
+
+module.exports = Minifier;