use directories for structure

node_modules/vinyl-sourcemap/index.js

@@ -0,0 +1,66 @@
+'use strict';
+
+var File = require('vinyl');
+
+var helpers = require('./lib/helpers');
+
+var PLUGIN_NAME = 'vinyl-sourcemap';
+
+function add(file, callback) {
+
+  // Bail early an error if the file argument is not a Vinyl file
+  if (!File.isVinyl(file)) {
+    return callback(new Error(PLUGIN_NAME + '-add: Not a vinyl file'));
+  }
+
+  // Bail early with an error if file has streaming contents
+  if (file.isStream()) {
+    return callback(new Error(PLUGIN_NAME + '-add: Streaming not supported'));
+  }
+
+  // Bail early successfully if file is null or already has a sourcemap
+  if (file.isNull() || file.sourceMap) {
+    return callback(null, file);
+  }
+
+  var state = {
+    path: '', // Root path for the sources in the map
+    map: null,
+    content: file.contents.toString(),
+    // TODO: handle this?
+    preExistingComment: null,
+  };
+
+  helpers.addSourceMaps(file, state, callback);
+}
+
+function write(file, destPath, callback) {
+
+  // Check if options or a callback are passed as second argument
+  if (typeof destPath === 'function') {
+    callback = destPath;
+    destPath = undefined;
+  }
+
+  // Bail early with an error if the file argument is not a Vinyl file
+  if (!File.isVinyl(file)) {
+    return callback(new Error(PLUGIN_NAME + '-write: Not a vinyl file'));
+  }
+
+  // Bail early with an error if file has streaming contents
+  if (file.isStream()) {
+    return callback(new Error(PLUGIN_NAME + '-write: Streaming not supported'));
+  }
+
+  // Bail early successfully if file is null or doesn't have sourcemap
+  if (file.isNull() || !file.sourceMap) {
+    return callback(null, file);
+  }
+
+  helpers.writeSourceMaps(file, destPath, callback);
+}
+
+module.exports = {
+  add: add,
+  write: write,
+};