Make launch more smooth

homeassistant/__main__.py

@@ -4,32 +4,12 @@ from __future__ import print_function
 import sys
 import os
 import argparse
-import importlib
 
 from homeassistant import bootstrap
 import homeassistant.config as config_util
 from homeassistant.const import EVENT_HOMEASSISTANT_START
 
 
-def validate_python():
-    """ Validate we're running the right Python version. """
-    major, minor = sys.version_info[:2]
-
-    if major < 3 or (major == 3 and minor < 4):
-        print("Home Assistant requires atleast Python 3.4")
-        sys.exit(1)
-
-
-def ensure_pip():
-    """ Validate pip is installed so we can install packages on demand. """
-    if importlib.find_loader('pip') is None:
-        print("Your Python installation did not bundle 'pip'")
-        print("Home Assistant requires 'pip' to be installed.")
-        print("Please install pip: "
-              "https://pip.pypa.io/en/latest/installing.html")
-        sys.exit(1)
-
-
 def ensure_config_path(config_dir):
     """ Gets the path to the configuration file.
         Creates one if it not exists. """
@@ -59,6 +39,8 @@ def ensure_config_path(config_dir):
                    'directory {} ').format(lib_dir))
             sys.exit(1)
 
+
+def ensure_config_file(config_dir):
     config_path = config_util.ensure_config_exists(config_dir)
 
     if config_path is None:
@@ -70,7 +52,8 @@ def ensure_config_path(config_dir):
 
 def get_arguments():
     """ Get parsed passed in arguments. """
-    parser = argparse.ArgumentParser()
+    parser = argparse.ArgumentParser(
+        description="Home Assistant: Observe, Control, Automate.")
     parser.add_argument(
         '-c', '--config',
         metavar='path_to_config_dir',
@@ -90,12 +73,10 @@ def get_arguments():
 
 def main():
     """ Starts Home Assistant. """
-    validate_python()
-
     args = get_arguments()
 
     config_dir = os.path.join(os.getcwd(), args.config)
-    config_path = ensure_config_path(config_dir)
+    ensure_config_path(config_dir)
 
     if args.demo_mode:
         hass = bootstrap.from_config_dict({
@@ -103,7 +84,8 @@ def main():
             'demo': {}
         }, config_dir=config_dir)
     else:
-        hass = bootstrap.from_config_file(config_path)
+        config_file = ensure_config_file(config_dir)
+        hass = bootstrap.from_config_file(config_file)
 
     if args.open_ui:
         def open_browser(event):

homeassistant/bootstrap.py

@@ -151,7 +151,7 @@ def mount_local_lib_path(config_dir):
 
 
 # pylint: disable=too-many-branches, too-many-statements
-def from_config_dict(config, hass=None, config_dir=None):
+def from_config_dict(config, hass=None, config_dir=None, enable_log=True):
     """
     Tries to configure Home Assistant from a config dict.
 
@@ -166,6 +166,7 @@ def from_config_dict(config, hass=None, config_dir=None):
 
     process_ha_core_config(hass, config.get(core.DOMAIN, {}))
 
+    if enable_log:
         enable_logging(hass)
 
     _ensure_loader_prepared(hass)
@@ -209,9 +210,11 @@ def from_config_file(config_path, hass=None):
     hass.config.config_dir = config_dir
     mount_local_lib_path(config_dir)
 
+    enable_logging(hass)
+
     config_dict = config_util.load_config_file(config_path)
 
-    return from_config_dict(config_dict, hass)
+    return from_config_dict(config_dict, hass, enable_log=False)
 
 
 def enable_logging(hass):

homeassistant/config.py

@@ -54,7 +54,8 @@ def ensure_config_exists(config_dir, detect_location=True):
     config_path = find_config_file(config_dir)
 
     if config_path is None:
-        _LOGGER.info("Unable to find configuration. Creating default one")
+        print("Unable to find configuration. Creating default one at",
+              config_dir)
         config_path = create_default_config(config_dir, detect_location)
 
     return config_path
@@ -100,9 +101,7 @@ def create_default_config(config_dir, detect_location=True):
         return config_path
 
     except IOError:
-        _LOGGER.exception(
-            'Unable to write default configuration file %s', config_path)
-
+        print('Unable to create default configuration file', config_path)
         return None