syncpackage: Support wildcards in sync-blacklist

This brings syncpackage's parsing of sync-blacklist.txt roughly into
line with that in auto-sync (from lp:ubuntu-archive-tools).

debian/changelog

@@ -1,3 +1,10 @@
+ubuntu-dev-tools (0.167) UNRELEASED; urgency=medium
+
+  * syncpackage:
+    + Support wildcards in sync-blacklist.
+
+ -- Colin Watson <cjwatson@ubuntu.com>  Tue, 11 Dec 2018 16:39:00 +0000
+
 ubuntu-dev-tools (0.166) unstable; urgency=medium
 
   * Team upload.

syncpackage

@@ -21,9 +21,9 @@
 # ##################################################################
 
 import codecs
+import fnmatch
 import optparse
 import os
-import re
 import shutil
 import sys
 import textwrap
@@ -436,10 +436,13 @@ def is_blacklisted(query):
             if not line.strip():
                 applicable_lines = []
                 continue
-            m = re.match(r'^\s*([a-z0-9.+-]+)?', line)
-            source = m.group(0)
             applicable_lines.append(line)
-            if source and query == source:
+            try:
+                line = line[:line.index('#')]
+            except ValueError:
+                pass
+            source = line.strip()
+            if source and fnmatch.fnmatch(query, source):
                 comments += ["From sync-blacklist.txt:"] + applicable_lines
                 blacklisted = 'ALWAYS'
                 break