updated sys and created publi

publi/node_modules/liftoff/lib/find_config.js

@@ -0,0 +1,25 @@
+const fs = require('fs');
+const path = require('path');
+const fileSearch = require('./file_search');
+
+module.exports = function (opts) {
+  opts = opts || {};
+  var configNameSearch = opts.configNameSearch;
+  var configPath = opts.configPath;
+  var searchPaths = opts.searchPaths;
+  // only search for a config if a path to one wasn't explicitly provided
+  if (!configPath) {
+    if (!Array.isArray(searchPaths)) {
+      throw new Error('Please provide an array of paths to search for config in.');
+    }
+    if (!configNameSearch) {
+      throw new Error('Please provide a configNameSearch.');
+    }
+    configPath = fileSearch(configNameSearch, searchPaths);
+  }
+  // confirm the configPath exists and return an absolute path to it
+  if (fs.existsSync(configPath)) {
+    return path.resolve(configPath);
+  }
+  return null;
+};