Initial commit for OpenECOMP SDN-C OA&M

[sdnc/oam.git] / dgbuilder / dgeflows / node_modules / express / lib / view.js

diff --git a/dgbuilder/dgeflows/node_modules/express/lib/view.js b/dgbuilder/dgeflows/node_modules/express/lib/view.js
new file mode 100644 (file)
index 0000000..e0989b4
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+++ b/dgbuilder/dgeflows/node_modules/express/lib/view.js
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+/**
+ * Module dependencies.
+ */
+
+var debug = require('debug')('express:view');
+var path = require('path');
+var fs = require('fs');
+var utils = require('./utils');
+
+/**
+ * Module variables.
+ * @private
+ */
+
+var dirname = path.dirname;
+var basename = path.basename;
+var extname = path.extname;
+var join = path.join;
+var resolve = path.resolve;
+
+/**
+ * Expose `View`.
+ */
+
+module.exports = View;
+
+/**
+ * Initialize a new `View` with the given `name`.
+ *
+ * Options:
+ *
+ *   - `defaultEngine` the default template engine name
+ *   - `engines` template engine require() cache
+ *   - `root` root path for view lookup
+ *
+ * @param {String} name
+ * @param {Object} options
+ * @api private
+ */
+
+function View(name, options) {
+  options = options || {};
+  this.name = name;
+  this.root = options.root;
+  var engines = options.engines;
+  this.defaultEngine = options.defaultEngine;
+  var ext = this.ext = extname(name);
+  if (!ext && !this.defaultEngine) throw new Error('No default engine was specified and no extension was provided.');
+  if (!ext) name += (ext = this.ext = ('.' != this.defaultEngine[0] ? '.' : '') + this.defaultEngine);
+  this.engine = engines[ext] || (engines[ext] = require(ext.slice(1)).__express);
+  this.path = this.lookup(name);
+}
+
+/**
+ * Lookup view by the given `name`
+ *
+ * @param {String} name
+ * @return {String}
+ * @api private
+ */
+
+View.prototype.lookup = function lookup(name) {
+  var path;
+  var roots = [].concat(this.root);
+
+  debug('lookup "%s"', name);
+
+  for (var i = 0; i < roots.length && !path; i++) {
+    var root = roots[i];
+
+    // resolve the path
+    var loc = resolve(root, name);
+    var dir = dirname(loc);
+    var file = basename(loc);
+
+    // resolve the file
+    path = this.resolve(dir, file);
+  }
+
+  return path;
+};
+
+/**
+ * Render with the given `options` and callback `fn(err, str)`.
+ *
+ * @param {Object} options
+ * @param {Function} fn
+ * @api private
+ */
+
+View.prototype.render = function render(options, fn) {
+  debug('render "%s"', this.path);
+  this.engine(this.path, options, fn);
+};
+
+/**
+ * Resolve the file within the given directory.
+ *
+ * @param {string} dir
+ * @param {string} file
+ * @private
+ */
+
+View.prototype.resolve = function resolve(dir, file) {
+  var ext = this.ext;
+  var path;
+  var stat;
+
+  // <path>.<ext>
+  path = join(dir, file);
+  stat = tryStat(path);
+
+  if (stat && stat.isFile()) {
+    return path;
+  }
+
+  // <path>/index.<ext>
+  path = join(dir, basename(file, ext), 'index' + ext);
+  stat = tryStat(path);
+
+  if (stat && stat.isFile()) {
+    return path;
+  }
+};
+
+/**
+ * Return a stat, maybe.
+ *
+ * @param {string} path
+ * @return {fs.Stats}
+ * @private
+ */
+
+function tryStat(path) {
+  debug('stat "%s"', path);
+
+  try {
+    return fs.statSync(path);
+  } catch (e) {
+    return undefined;
+  }
+}