Merge commit 'lamby/master' into merge

[dak.git] / daklib / srcformats.py

diff --git a/daklib/srcformats.py b/daklib/srcformats.py
index 0a74c19262f99fe91e6476487cabd39bf8f22faa..7d7dd940e3837c1c5c99a7f8708ae3663ae53d44 100644 (file)
--- a/daklib/srcformats.py
+++ b/daklib/srcformats.py
@@ -1,7 +1,22 @@
 import re
 
+from dak_exceptions import UnknownFormatError
+
 srcformats = []
 
+def get_format_from_string(txt):
+    """
+    Returns the SourceFormat class that corresponds to the specified .changes
+    Format value. If the string does not match any class, UnknownFormatError
+    is raised.
+    """
+
+    for format in srcformats:
+        if format.re_format.match(txt):
+            return format
+
+    raise UnknownFormatError, "Unknown format %r" % txt
+
 class SourceFormat(type):
     def __new__(cls, name, bases, attrs):
         klass = super(SourceFormat, cls).__new__(cls, name, bases, attrs)