Add production dependencies

node_modules/gulp-concat/index.js

@@ -0,0 +1,101 @@
+'use strict';
+
+var through = require('through2');
+var path = require('path');
+var File = require('vinyl');
+var Concat = require('concat-with-sourcemaps');
+
+// file can be a vinyl file object or a string
+// when a string it will construct a new one
+module.exports = function(file, opt) {
+  if (!file) {
+    throw new Error('gulp-concat: Missing file option');
+  }
+  opt = opt || {};
+
+  // to preserve existing |undefined| behaviour and to introduce |newLine: ""| for binaries
+  if (typeof opt.newLine !== 'string') {
+    opt.newLine = '\n';
+  }
+
+  var isUsingSourceMaps = false;
+  var latestFile;
+  var latestMod;
+  var fileName;
+  var concat;
+
+  if (typeof file === 'string') {
+    fileName = file;
+  } else if (typeof file.path === 'string') {
+    fileName = path.basename(file.path);
+  } else {
+    throw new Error('gulp-concat: Missing path in file options');
+  }
+
+  function bufferContents(file, enc, cb) {
+    // ignore empty files
+    if (file.isNull()) {
+      cb();
+      return;
+    }
+
+    // we don't do streams (yet)
+    if (file.isStream()) {
+      this.emit('error', new Error('gulp-concat: Streaming not supported'));
+      cb();
+      return;
+    }
+
+    // enable sourcemap support for concat
+    // if a sourcemap initialized file comes in
+    if (file.sourceMap && isUsingSourceMaps === false) {
+      isUsingSourceMaps = true;
+    }
+
+    // set latest file if not already set,
+    // or if the current file was modified more recently.
+    if (!latestMod || file.stat && file.stat.mtime > latestMod) {
+      latestFile = file;
+      latestMod = file.stat && file.stat.mtime;
+    }
+
+    // construct concat instance
+    if (!concat) {
+      concat = new Concat(isUsingSourceMaps, fileName, opt.newLine);
+    }
+
+    // add file to concat instance
+    concat.add(file.relative, file.contents, file.sourceMap);
+    cb();
+  }
+
+  function endStream(cb) {
+    // no files passed in, no file goes out
+    if (!latestFile || !concat) {
+      cb();
+      return;
+    }
+
+    var joinedFile;
+
+    // if file opt was a file path
+    // clone everything from the latest file
+    if (typeof file === 'string') {
+      joinedFile = latestFile.clone({contents: false});
+      joinedFile.path = path.join(latestFile.base, file);
+    } else {
+      joinedFile = new File(file);
+    }
+
+    joinedFile.contents = concat.content;
+
+    if (concat.sourceMapping) {
+      joinedFile.sourceMap = JSON.parse(concat.sourceMap);
+    }
+
+    this.push(joinedFile);
+    cb();
+  }
+
+  return through.obj(bufferContents, endStream);
+};