patchtest: mbox.py: new data implementation

Consolidate and improve some objects:

- absorb utils.py functionality
- repo.py: use mbox.py
- repo.py: remove some cruft
- utils.py: replace with logs.py
- utils.py: delete
- patch.py: delete
- scripts/patchtest: use logging directly
- general cleanup

(From OE-Core rev: d4fbdb1d15f281b236137d63710c73bca8911a36)

Signed-off-by: Trevor Gamblin <tgamblin@baylibre.com>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>

meta/lib/patchtest/tests/base.py

@@ -37,7 +37,6 @@ class Base(unittest.TestCase):
     endcommit_messages_regex = re.compile(r'\(From \w+-\w+ rev:|(?<!\S)Signed-off-by|(?<!\S)---\n')
     patchmetadata_regex   = re.compile(r'-{3} \S+|\+{3} \S+|@{2} -\d+,\d+ \+\d+,\d+ @{2} \S+')
 
-
     @staticmethod
     def msg_to_commit(msg):
         payload = msg.get_payload()
@@ -66,13 +65,13 @@ class Base(unittest.TestCase):
     def setUpClass(cls):
 
         # General objects: mailbox.mbox and patchset
-        cls.mbox = mailbox.mbox(PatchTestInput.repo.patch)
+        cls.mbox = mailbox.mbox(PatchTestInput.repo.patch.path)
 
         # Patch may be malformed, so try parsing it
         cls.unidiff_parse_error = ''
         cls.patchset = None
         try:
-            cls.patchset = unidiff.PatchSet.from_filename(PatchTestInput.repo.patch, encoding=u'UTF-8')
+            cls.patchset = unidiff.PatchSet.from_filename(PatchTestInput.repo.patch.path, encoding=u'UTF-8')
         except unidiff.UnidiffParseError as upe:
             cls.patchset = []
             cls.unidiff_parse_error = str(upe)