Merge pull request #89 from mjc/fixup-error-handling

Fix broken and greedy default exception handler, and throw meaningful log message when pywin32 is missing

CouchPotato.py

@@ -4,6 +4,7 @@ from os.path import dirname
 import logging
 import os
 import signal
+import socket
 import subprocess
 import sys
 import traceback
@@ -121,9 +122,20 @@ if __name__ == '__main__':
         pass
     except SystemExit:
         raise
-    except Exception as (nr, msg):
+    except socket.error as (nr, msg):
+        # log when socket receives SIGINT, but continue.
+        # previous code would have skipped over other types of IO errors too.
         if nr != 4:
             try:
                 l.log.critical(traceback.format_exc())
             except:
                 print traceback.format_exc()
+            raise
+    except:
+        try:
+            # if this fails we will have two tracebacks
+            # one for failing to log, and one for the exception that got us here.
+            l.log.critical(traceback.format_exc())
+        except:
+            print traceback.format_exc()
+        raise

couchpotato/core/loader.py

@@ -51,8 +51,13 @@ class Loader(object):
                     did_save += self.loadSettings(m, module_name, save = False)
 
                     self.loadPlugins(m, plugin.get('name'))
-                except ImportError:
-                    log.debug('Import error, remove the empty folder: %s' % plugin.get('module'))
+                except ImportError as e:
+                    # todo:: subclass ImportError for missing requirements.
+                    if (e.message.lower().startswith("missing")):
+                        log.error(e.message)
+                        pass
+                    # todo:: this needs to be more descriptive.
+                    log.error('Import error, remove the empty folder: %s' % plugin.get('module'))
                 except:
                     log.error('Can\'t import %s: %s' % (module_name, traceback.format_exc()))
 

couchpotato/core/plugins/browser/main.py

@@ -6,7 +6,15 @@ import os
 import string
 
 if os.name == 'nt':
-    import win32file
+    import imp
+    try:
+        imp.find_module('win32file')
+    except:
+        # todo:: subclass ImportError for missing dependencies, vs. broken plugins?
+        raise ImportError("Missing the win32file module, which is a part of the prerequisite \
+            pywin32 package. You can get it from http://sourceforge.net/projects/pywin32/files/pywin32/");
+    else:
+        import win32file
 
 class FileBrowser(Plugin):