check for updates and offer option option to restart

oml/api.py

@@ -10,6 +10,8 @@ import ox
 from oxtornado import actions
 
 
+import settings
+
 import item.api
 import user.api
 
@@ -76,3 +78,34 @@ def autocompleteFolder(data):
         'items': ox.sorted_strings(folders)
     }
 actions.register(autocompleteFolder, cache=False)
+
+def getVersion(data):
+    '''
+        check if new version is available
+    '''
+    response = {
+        'current': settings.MINOR_VERSION,
+        'upgrade': False,
+    }
+    if not os.path.exists(os.path.join(settings.updates_path, 'release.json')):
+        return response
+    if not os.path.exists(os.path.join(settings.config_path, 'release.json')):
+        return response
+    with open(os.path.join(settings.updates_path, 'release.json')) as fd:
+        release = json.load(fd)
+    current = settings.release['modules']['openmedialibrary']['version']
+    response['current'] = current
+    new = release['modules']['openmedialibrary']['version']
+    response['new'] = new
+    response['update'] = current < new
+    return response
+actions.register(getVersion, cache=False)
+
+def restart(data):
+    '''
+        restart (and upgrade if upgrades are available)
+    '''
+    #subprocess.Popen(['./ctl', 'restart'], preexec_fn=os.setpgrp, close_fds=True)
+    subprocess.Popen(['./ctl', 'restart'], close_fds=True)
+    return {}
+actions.register(restart, cache=False)

oml/server.py

@@ -4,6 +4,7 @@ from __future__ import division, print_function
 
 import os
 import sys
+import signal
 
 from tornado.httpserver import HTTPServer
 from tornado.ioloop import IOLoop
@@ -94,14 +95,20 @@ def run():
         host = settings.server['address']
     url = 'http://%s:%s/' % (host, settings.server['port'])
     print('open browser at %s' % url)
+
+    def shutdown():
+        if state.downloads:
+            state.downloads.join()
+        if state.tasks:
+            state.tasks.join()
+        if state.nodes:
+            state.nodes.join()
+        http_server.stop()
+
+    signal.signal(signal.SIGTERM, shutdown)
+
     try:
         state.main.start()
     except:
         print('shutting down...')
-
-    if state.downloads:
-        state.downloads.join()
-    if state.tasks:
-        state.tasks.join()
-    if state.nodes:
-        state.nodes.join()
+    shutdown()

oml/update.py

@@ -56,6 +56,7 @@ def check():
         old = settings.release['modules']['openmedialibrary']['version']
         new = release['modules']['openmedialibrary']['version']
         return verify(release) and old < new
+    return False
 
 def download():
     if not os.path.exists(os.path.join(settings.config_path, 'release.json')):