--- a/hgext/convert/hg.py
+++ b/hgext/convert/hg.py
@@ -174,7 +174,11 @@ class mercurial_source(converter_source)
converter_source.__init__(self, ui, path, rev)
try:
self.repo = hg.repository(self.ui, path)
- except:
+ # try to provoke an exception if this isn't really a hg
+ # repo, but some other bogus compatible-looking url
+ self.repo.heads()
+ except hg.RepoError:
+ ui.print_exc()
raise NoRepo("could not open hg repo %s as source" % path)
self.lastrev = None
self.lastctx = None
--- a/hgext/convert/subversion.py
+++ b/hgext/convert/subversion.py
@@ -128,6 +128,7 @@ class convert_svn(converter_source):
self.paths = {}
self.uuid = svn.ra.get_uuid(self.ra).decode(self.encoding)
except SubversionException, e:
+ ui.print_exc()
raise NoRepo("couldn't open SVN repo %s" % self.url)
if rev: