From a29e2b6c6d722d60985981cbb1fe3922703feb40 Mon Sep 17 00:00:00 2001
From: Tim Abbott <tabbott@humbughq.com>
Date: Wed, 24 Oct 2012 16:32:52 -0400
Subject: [PATCH] Add Humbug trac plugin.

(imported from commit 4f08a4be6d2dfdb749a9084fb13be86fb406ab5b)
---
 humbug_trac.py | 74 ++++++++++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 74 insertions(+)
 create mode 100644 humbug_trac.py

diff --git a/humbug_trac.py b/humbug_trac.py
new file mode 100644
index 0000000..8223860
--- /dev/null
+++ b/humbug_trac.py
@@ -0,0 +1,74 @@
+#!/usr/bin/python
+#
+# Humbug trac plugin -- sends humbugs when tickets change.
+#
+# Install by placing in the plugins/ subdirectory and then adding
+# "humbug_trac" to the [components] section of the conf/trac.ini file,
+# like so:
+#
+# [components]
+# humbug_trac = enabled
+
+from trac.core import *
+from trac.util.html import html
+from trac.ticket import ITicketChangeListener
+import sys
+
+sys.path.append("/home/humbug/humbug")
+import api.common
+client = api.common.HumbugAPI(email="humbug+trac@humbughq.com",
+                              api_key="xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx")
+
+def markdown_ticket_url(ticket, heading="ticket"):
+    return "[%s #%s](https://trac.humbughq.com/ticket/%s)" % (heading, ticket.id, ticket.id)
+
+def markdown_block(desc):
+    return "\n~~~~\n%s\n~~~~\n" % (desc,)
+
+def trac_subject(ticket):
+    return "Trac #%s" % ticket.id
+
+def send_update(ticket, content):
+    client.send_message({
+            "type": "stream",
+            "stream": "devel",
+            "content": content,
+            "subject": trac_subject(ticket)
+            })
+
+class HelloWorldPlugin(Component):
+    implements(ITicketChangeListener)
+
+    def ticket_created(self, ticket):
+        """Called when a ticket is created."""
+        content = "%s created new %s in component %s:\n%s" % (ticket.values.get("reporter"),
+                                                              markdown_ticket_url(ticket),
+                                                              ticket.values.get("component"),
+                                                              ticket.values.get("summary"))
+        if ticket.values.get("description") != "":
+            content += ":%s" % markdown_block(ticket.values.get("description"))
+        send_update(ticket, content)
+
+    def ticket_changed(self, ticket, comment, author, old_values):
+        """Called when a ticket is modified.
+        
+        `old_values` is a dictionary containing the previous values of the
+        fields that have changed.
+        """
+        content = "%s updated %s:\n\n" % (author, markdown_ticket_url(ticket))
+        for key in old_values.keys():
+            if key != "description":
+                content += '- Changed %s from "%s" to "%s"\n' % (key, old_values.get(key), 
+                                                                 ticket.values.get(key))
+            else:
+                content += '- Changed %s from %s to %s' % (key, markdown_block(old_values.get(key)), 
+                                                           markdown_block(ticket.values.get(key)))
+
+        if comment:
+            content += '- Added a comment: %s' % (markdown_block(comment,))
+        send_update(ticket, content)
+
+    def ticket_deleted(self, ticket):
+        """Called when a ticket is deleted."""
+        content = "%s was deleted." % markdown_ticket_url(ticket, heading="Ticket")
+        send_update(ticket, content)