[dak/master 05/10] Split parsing of "Format:" string and validation of it.

[Chris Lamb <lamby@debian.org>]

Signed-off-by: Chris Lamb <lamby@debian.org>
---
 daklib/srcformats.py     |   14 ++++++++------
 daklib/utils.py          |    3 ++-
 tests/test_srcformats.py |   16 ++++++++--------
 3 files changed, 18 insertions(+), 15 deletions(-)

diff --git a/daklib/srcformats.py b/daklib/srcformats.py
index 735b7b6..2b07c7e 100644
--- a/daklib/srcformats.py
+++ b/daklib/srcformats.py
@@ -28,7 +28,7 @@ class SourceFormat(type):
                 yield "contains source files not allowed in format %s" % cls.name
 
     @classmethod
-    def parse_format(cls, txt, is_a_dsc=False, field='files'):
+    def parse_format(cls, txt):
         format = re_verwithext.search(txt)
 
         if format is None:
@@ -44,17 +44,19 @@ class SourceFormat(type):
         if format[2] is None:
             format = format[:2]
 
+        return format
+
+    @classmethod
+    def validate_format(cls, format, is_a_dsc=False, field='files'):
         if is_a_dsc:
             if format != (1,0) and \
                format != (3,0,"quilt") and format != (3,0,"native"):
-                raise UnknownFormatError, txt
+                raise UnknownFormatError, repr(format)
         else:
             if (format < (1,5) or format > (1,8)):
-                raise UnknownFormatError, txt
+                raise UnknownFormatError, repr(format)
             if field != "files" and format < (1,8):
-                raise UnknownFormatError, txt
-
-        return format
+                raise UnknownFormatError, repr(format)
 
 class FormatOne(SourceFormat):
     __metaclass__ = SourceFormat
diff --git a/daklib/utils.py b/daklib/utils.py
index 5021483..8362c57 100755
--- a/daklib/utils.py
+++ b/daklib/utils.py
@@ -523,7 +523,8 @@ def build_file_list(changes, is_a_dsc=0, field="files", hashname="md5sum"):
     if not changes.has_key(field):
         raise NoFilesFieldError
 
-    format = SourceFormat.parse_format(changes.get["format"], field, is_a_dsc)
+    format = SourceFormat.parse_format(changes.get["format"])
+    SourceFormat.validate_format(format, is_a_dsc=False, field='files')
 
     includes_section = (not is_a_dsc) and field == "files"
 
diff --git a/tests/test_srcformats.py b/tests/test_srcformats.py
index 802f0ff..9c62d83 100755
--- a/tests/test_srcformats.py
+++ b/tests/test_srcformats.py
@@ -107,16 +107,16 @@ class FormatTreeQuiltTestCase(SourceFormatTestCase):
 
 class ParseFormat(unittest.TestCase):
     def assertFormat(self, input, expected, **kwargs):
-        self.assertEqual(
-            srcformats.SourceFormat.parse_format(input, **kwargs),
-            expected,
-        )
+        format = srcformats.SourceFormat.parse_format(input)
+        self.assertEqual(format, expected)
+        srcformats.SourceFormat.validate_format(format, **kwargs)
 
     def assertInvalidFormat(self, input, **kwargs):
-        self.assertRaises(
-            UnknownFormatError,
-            lambda: srcformats.SourceFormat.parse_format(input, **kwargs),
-        )
+        try:
+            format = srcformats.SourceFormat.parse_format(input)
+            srcformats.SourceFormat.validate_format(format, **kwargs)
+        except UnknownFormatError:
+            return
 
     def testEmpty(self):
         self.assertInvalidFormat('')
-- 
1.6.3.3