use npm start rather than looking for server.js

[mandric]

When launching a new package follow the standard npm config in package.json. This would allow you to easily pass arguments to the package start script without having to change anything about gardener since you can just edit your package.json.

This function could parse package.json or just call npm start. https://github.com/garden20/gardener/blob/master/lib/processes.js#L537

[mandric]

When using npm start in the forever_bind function the process detaches from forever so gardener can't manage it. Find a way to call npm start from forver without detaching the child process so when gardener stops or restarts the node module processes also die or get restarted.

This patch changes the working dir (CWD) and calls npm start with forever but is insufficient:

diff --git a/lib/processes.js b/lib/processes.js
index 6a81d5d..959891a 100644
--- a/lib/processes.js
+++ b/lib/processes.js
@@ -551,7 +551,7 @@ function start_forever(module_details, callback) {
         var working_dir = get_working_dir(module_detail),
             package_dir = get_package_dir(module_detail),
             start_script = path.resolve(get_start_script(package_dir)),
-            opts = getForeverOptions(working_dir, module_detail),
+            opts = getForeverOptions(package_dir, module_detail),
             route =  (url.parse(module_detail.ddoc_url).path),

             logname = [module_detail.db_name, utils.get_ddoc_name(module_detail.ddoc_url), module_detail.install_package.package_name].join('_'),
@@ -563,9 +563,9 @@ function start_forever(module_details, callback) {
 }

 function forever_bind(logname, start_script, opts, route) {
-    logger.info('starting [' + logname + '] with script ' + start_script);
+    logger.info('starting [' + logname + '] with npm start');

-    var child = new (forever.Monitor)(start_script, opts);
+    var child = new (forever.Monitor)(['../../../../node_modules/.bin/npm', 'start'], opts);

     child.once('error', function(err) {  process_error(logname, err);    });
     child.once('start', function(process, data) {  process_start(logname, process, data, opts);    });

See https://github.com/garden20/gardener/blob/master/lib/processes.js#L568