Merge pull request home-assistant#627 from rmkraus/update_notify

Updater component

homeassistant/components/frontend/version.py

@@ -1,2 +1,2 @@
 """ DO NOT MODIFY. Auto-generated by build_frontend script """
-VERSION = "44fc40d6c32d1f5ff94c590d17f9cc2e"
+VERSION = "b75e3c9ebd3de2dae0912a89499127a9"

homeassistant/components/updater.py

@@ -0,0 +1,57 @@
+"""
+homeassistant.components.sensor.updater
+~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
+Sensor that checks for available updates.
+
+For more details about this platform, please refer to the documentation at
+at https://home-assistant.io/components/sensor.updater/
+"""
+import logging
+
+import requests
+
+from homeassistant.const import __version__ as CURRENT_VERSION
+from homeassistant.const import ATTR_FRIENDLY_NAME
+from homeassistant.helpers import event
+
+_LOGGER = logging.getLogger(__name__)
+PYPI_URL = 'https://pypi.python.org/pypi/homeassistant/json'
+DEPENDENCIES = []
+DOMAIN = 'updater'
+ENTITY_ID = 'updater.updater'
+
+
+def setup(hass, config):
+    ''' setup the updater component '''
+
+    def check_newest_version(_=None):
+        ''' check if a new version is available and report if one is '''
+        newest = get_newest_version()
+
+        if newest != CURRENT_VERSION and newest is not None:
+            hass.states.set(
+                ENTITY_ID, newest, {ATTR_FRIENDLY_NAME: 'Update Available'})
+
+    event.track_time_change(hass, check_newest_version,
+                            hour=[0, 12], minute=0, second=0)
+
+    check_newest_version()
+
+    return True
+
+
+def get_newest_version():
+    ''' Get the newest HA version form PyPI '''
+    try:
+        req = requests.get(PYPI_URL)
+
+        return req.json()['info']['version']
+    except requests.RequestException:
+        _LOGGER.exception('Could not contact PyPI to check for updates')
+        return
+    except ValueError:
+        _LOGGER.exception('Received invalid response from PyPI')
+        return
+    except KeyError:
+        _LOGGER.exception('Response from PyPI did not include version')
+        return