Initial patchwork integration support

A lot of maintainers use patchwork alongside b4, to make it easier to
track patches and rely on some CI integration. This commit adds some
basic patchwork integration:

- on "b4 am", "b4 shazam", "b4 pr" we will mark the relevant patchwork
  entries as "Under Review"
- on "b4 ty" we can set these patches as "Accepted"
- on "b4 ty -d" we can set them as "Deferred"

To make it work, the following entries must be present in the repository
used with b4:

    [b4]
      pw-key = (your API token)
      pw-url = https://patchwork.kernel.org
      pw-project = (your project, e.g. linux-usb)
      pw-review-state = under-review
      pw-accept-state = accepted
      pw-discard-state = deferred

To get your patchwork API token, go to your patchwork profile page.

The pw-accept-state and pw-discard-state can be overridden using the
--pw-set-state flag to "b4 ty". E.g. if you wanted to mark the patches
as "Not applicable":

    b4 ty -d 5 --pw-set-state not-applicable

Signed-off-by: Konstantin Ryabitsev <konstantin@linuxfoundation.org>

1 files changed, 9 insertions, 1 deletions

diff --git a/b4/mbox.py b/b4/mbox.py
index 1cc58c7..b9578ef 100644
--- a/b4/mbox.py
+++ b/b4/mbox.py
@@ -20,6 +20,7 @@ import pathlib
 import tempfile
 import io
 import shlex
+import argparse
 
 import urllib.parse
 import xml.etree.ElementTree
@@ -417,6 +418,7 @@ def thanks_record_am(lser, cherrypick=None):
     filename = '%s.am' % slug
 
     patches = list()
+    msgids = list()
     at = 0
     padlen = len(str(lser.expected))
     lmsg = None
@@ -425,6 +427,7 @@ def thanks_record_am(lser, cherrypick=None):
         if pmsg is None:
             at += 1
             continue
+        msgids.append(pmsg.msgid)
 
         if lmsg is None:
             lmsg = pmsg
@@ -472,6 +475,11 @@ def thanks_record_am(lser, cherrypick=None):
         json.dump(out, fh, ensure_ascii=False, indent=4)
         logger.debug('Wrote %s for thanks tracking', filename)
 
+    config = b4.get_main_config()
+    pwstate = config.get('pw-review-state')
+    if pwstate:
+        b4.patchwork_set_state(msgids, pwstate)
+
 
 def save_as_quilt(am_msgs, q_dirname):
     if os.path.exists(q_dirname):
@@ -670,7 +678,7 @@ def get_extra_series(msgs: list, direction: int = 1, wantvers: Optional[int] = N
     return msgs
 
 
-def get_msgs(cmdargs) -> Tuple[Optional[str], Optional[list]]:
+def get_msgs(cmdargs: argparse.Namespace) -> Tuple[Optional[str], Optional[list]]:
     msgid = None
     if not cmdargs.localmbox:
         msgid = b4.get_msgid(cmdargs)