fix: allow relative config name and explicit extension, refs #131

Author: MikeRalphson

cg.js

@@ -66,8 +66,14 @@ let configStr = argv._[0] || 'nodejs';
 let configName = path.basename(configStr);
 let remoteConfig = configName.indexOf(':')>-1;
 let configPath = path.dirname(configStr);
-if (!configPath || (configPath === '.')) configPath = path.resolve(__dirname,'configs');
-let configFile = path.join(configPath,configName)+'.json';
+if (!configPath) configPath = path.resolve(__dirname,'configs');
+let configFile = path.join(configPath,configName);
+if (!path.extname(configFile)) {
+  configFile += '.json';
+}
+else {
+  configName = configName.replace(path.extname(configFile),'');
+}
 let config = remoteConfig ? { defaults: {} } : yaml.parse(fs.readFileSync(configFile,'utf8'), {prettyErrors: true});
 let defName = argv._[1] || path.resolve(__dirname,'defs/petstore3.json');