From 7c3ef317df62dcc72cca739a5adfc364f8384771 Mon Sep 17 00:00:00 2001
From: Thomas Rast <trast@student.ethz.ch>
Date: Mon, 9 Feb 2009 13:21:30 +0100
Subject: [PATCH] Parse "What's cooking" mails

---
 db.py   | 11 +++++++++++
 mail.py | 42 ++++++++++++++++++++++++++++++++++++++++++
 2 files changed, 53 insertions(+)

diff --git a/db.py b/db.py
index 5544a28..a6c527d 100644
--- a/db.py
+++ b/db.py
@@ -102,6 +102,17 @@ class Patch(DeclarativeBase):
         self.extra_notes = extra_notes
 
 
+class Topic(DeclarativeBase):
+    __tablename__ = 'topics'
+
+    id = Column(Integer, primary_key=True)
+    name = Column(String(255))
+    mail_id = Column(Integer, ForeignKey('mails.id'))
+    cooking_notes = Column(Binary)
+
+    mail = relation('Mail', backref='topic')
+
+
 DeclarativeBase.metadata.create_all(engine)
 
 if __name__ == '__main__':
diff --git a/mail.py b/mail.py
index 6efba2b..84cf8c2 100644
--- a/mail.py
+++ b/mail.py
@@ -136,6 +136,45 @@ def try_patch_anywhere(session, msg, m):
         return applied
     # all out of ideas!
 
+_whats_cooking_subject = re.compile(r"^What's cooking in git\.git")
+_whats_cooking_category = re.compile(r"^\[(.*)\]$")
+_whats_cooking_header = re.compile(r"\* (../[a-zA-Z0-9-]) \([^)]*\) \d+ commits?")
+_whats_cooking_separator = re.compile(r"^(-{5,}|-- )$")
+
+def parse_whats_cooking(session, msg, m):
+    if not _whats_cooking_subject.match(m["Subject"]):
+        return
+    category = None
+    branch = 'pu' # initial part goes on 'pu'
+    notes = []
+    def _rotate_notes():
+        if branch:
+            t = db.query(db.Topic).filter(db.Topic.name==branch).first()
+            if not t:
+                t = db.Topic()
+                t.name = branch
+                session.add(t)
+            t.mail_id = m.id
+            t.extra_notes = '\n'.join(notes)
+        notes = []
+        if category:
+            notes.append(category)
+    for line in _get_text_payload(msg).splitlines():
+        if _whats_cooking_separator.match(line):
+            category = None
+            _rotate_notes()
+            branch = None
+            continue
+        if _whats_cooking_category.match(line):
+            category = m.group(1)
+            _rotate_notes()
+            continue
+        if _whats_cooking_header.match(line):
+            _rotate_notes()
+            branch = m.group(1)
+            continue
+        notes.append(line)
+
 def parse_mail(session, msg):
     if (session.query(db.Mail.message_id)
         .filter(db.Mail.message_id == _parse_msg_id(msg['Message-Id']))
@@ -153,9 +192,12 @@ def parse_mail(session, msg):
     if msg['References']:
         for im in _msg_id_regex.finditer(' '.join(msg.get_all('References'))):
             references.append((m, im.group(1)))
+    # try patching
     patch = try_patch_anywhere(session, msg, m)
     if patch:
         m.patch_id = patch.commit.patch_id
+    # try reading a what's cooking message
+    parse_whats_cooking(session, msg, m)
     session.commit()
     return references
 
-- 
2.11.4.GIT