add debug messages, fix broken UnknownOverlayException

4 files changed, 17 insertions, 3 deletions

diff --git a/layman/dbbase.py b/layman/dbbase.py
index 4714d5f..dfe6ec8 100644
--- a/layman/dbbase.py
+++ b/layman/dbbase.py
@@ -44,12 +44,14 @@ from   layman.overlays.overlay   import Overlay
 #
 #-------------------------------------------------------------------------------
 def UnknownOverlayMessage(ovl):
-    return 'Overlay "%s" does not exist.' % ovl
+    return 'Exception: Overlay "%s" does not exist.' % ovl
 
 class UnknownOverlayException(Exception):
     def __init__(self, repo_name):
-        UnknownOverlayMessage(repo_name)
-        super(UnknownOverlayException, self).__init__(message)
+        self.repo_name = repo_name
+
+    def __str__(self):
+        return UnknownOverlayMessage(self.repo_name)
 
 #===============================================================================
 #
@@ -236,7 +238,12 @@ class DbBase(object):
         >>> list(a.select('wrobel-stable').source_uris())
         [u'rsync://gunnarwrobel.de/wrobel-stable']
         '''
+        self.output.debug("DbBase.select(), overlay = %s" % overlay, 5)
         if not overlay in self.overlays.keys():
+            self.output.debug("DbBase.select(), unknown overlay = %s"
+                % overlay, 4)
+            self.output.debug("DbBase.select(), known overlays = %s"
+                % ', '.join(self.overlays.keys()), 4)
             raise UnknownOverlayException(overlay)
         return self.overlays[overlay]
 
diff --git a/layman/overlays/git.py b/layman/overlays/git.py
index f6a350f..64a0dfb 100644
--- a/layman/overlays/git.py
+++ b/layman/overlays/git.py
@@ -74,6 +74,7 @@ class GitOverlay(OverlaySource):
     def sync(self, base, quiet = False):
         '''Sync overlay.'''
 
+        self.output.debug("git.sync(); starting...%s" % self.parent.name, 6)
         if not self.supported():
             return 1
 
diff --git a/layman/overlays/overlay.py b/layman/overlays/overlay.py
index 60d57d4..8eaa77e 100644
--- a/layman/overlays/overlay.py
+++ b/layman/overlays/overlay.py
@@ -420,6 +420,7 @@ class Overlay(object):
 
 
     def sync(self, base, quiet = False):
+        self.output.debug("overlay.sync(); name = %s" % self.name, 4)
         assert len(self.sources) == 1
         return self.sources[0].sync(base, quiet)
 
diff --git a/layman/overlays/source.py b/layman/overlays/source.py
index a62cd15..a57baf4 100644
--- a/layman/overlays/source.py
+++ b/layman/overlays/source.py
@@ -173,6 +173,11 @@ class OverlaySource(object):
         except KeyboardInterrupt:
             self.output.info('Interrupted manually', 2)
             result = 1
+        except Exception as err:
+            self.output.error(
+                'Unknown exception running command: %s' % command_repr, 2)
+            self.output.error('Original error was: %s' % str(err), 2)
+            result = 1
 
         if self.quiet:
             output_target.close()