# 
# 
# patch "config.py"
#  from [873667db24c6715f19d6a23c9c39b46d42b3b2af]
#    to [ec1da48608a688595fedb41cf4600a3d9d0699e7]
# 
# patch "monotone.py"
#  from [db94b133c60582cc38327251327147bcf5f2f461]
#    to [bbcdd36f0094c2e02895fa0aaa28ddf97fe51b3d]
# 
# patch "revision.psp"
#  from [65c3b846ff13c46662f9ed4f1aafb3017181e354]
#    to [3dc4b749e678a9c194796deccb322c3ed0338c2b]
# 
============================================================
--- config.py	873667db24c6715f19d6a23c9c39b46d42b3b2af
+++ config.py	ec1da48608a688595fedb41cf4600a3d9d0699e7
@@ -1,7 +1,9 @@
 import sys
 
 sys.path.append('/home/grahame/monotone/goatpy')
 
 monotone = '/opt/monotone/bin/monotone'
 dbfile = '/home/grahame/public_html/viewmtn/viewmtn.db'
+graphdir = '/home/grahame/public_html/viewmtn/graph/'
+graphuri = 'graph/'
 
============================================================
--- monotone.py	db94b133c60582cc38327251327147bcf5f2f461
+++ monotone.py	bbcdd36f0094c2e02895fa0aaa28ddf97fe51b3d
@@ -1,7 +1,10 @@
 
 from goatpy import utility
+import urllib
 import pipes
+import sets
 import re
+import os
 
 #
 # a python wrapper for the "monotone" command
@@ -113,6 +116,39 @@
 				entry[attr].append(value)
 		if entry: rv.append(entry)
 		return rv
+	def ancestry_graph(self, graphdir, graphuri, id, limit=0):
+		rv = {
+			'dot_file' : os.path.join(graphdir, id + ".dot"),
+			'image_file' : os.path.join(graphdir, id + ".png"),
+			'imagemap_file' : os.path.join(graphdir, id + ".html"),
+			'dot_uri' : "%s/%s.dot" % (graphuri, urllib.quote(id)), 
+			'image_uri' : "%s/%s.png" % (graphuri, urllib.quote(id)), 
+			'imagemap_uri' : "%s/%s.html" % (graphuri, urllib.quote(id)), 
+		}
+		missing = filter(lambda x: x != True, map(lambda x: os.access(x, os.R_OK), rv.values()))
+		if len(missing) == 0:
+			rv['cached'] = True
+			return rv
+		contents = """
+		graph ancestry {
+		"""
+		revisions = sets.Set()
+		for attrs in self.ancestry(id, limit):
+			if not attrs.has_key("Revision") or not attrs.has_key("Ancestor"):
+				continue
+			revision = attrs['Revision'][0]
+			revisions.add(revision)
+			for ancestor in attrs['Ancestor']:
+				if len(ancestor) == 0: continue
+				revisions.add(ancestor)
+				contents += '"%s"--"%s"\n' % (revision, ancestor)
+		for revision in revisions:
+			contents += '"%s" [fontsize=8,shape=square,href="revision.psp?id=%s"]\n' % (revision, urllib.quote(revision))
+		contents += "}\n"
+		open(rv['dot_file'], 'w').write(contents)
+		os.system("/usr/bin/dot -Tcmapx -o %s -Tpng -o %s %s" % (pipes.quote(rv['imagemap_file']), rv['image_file'], rv['dot_file']))
+		rv['cached'] = False
+		return rv
 
 def is_valid_id(s):
 	return len(s) == 40 and id_re.match(s) != None
============================================================
--- revision.psp	65c3b846ff13c46662f9ed4f1aafb3017181e354
+++ revision.psp	3dc4b749e678a9c194796deccb322c3ed0338c2b
@@ -8,6 +8,7 @@
 from template import header,footer
 from monotone import Monotone
 
+reload(config)
 reload(common)
 reload(template)
 reload(monotone)
@@ -31,20 +32,25 @@
 info = {'title' : "Revision %s" % (hq(id))}
 req.write(header(info))
 
+ancestry_graph = mt.ancestry_graph(config.graphdir, config.graphuri, id, 20)
+req.write(open(ancestry_graph['imagemap_file']).read())
+
 %>
 
+<img align="right" border="0" usemap="ancestry" src="<%= ancestry_graph['image_uri'] %>" alt="Ancestry of <%= hq(id) %>" style="border-width: 1px; border-color: black; border-style: solid;" />
+
 <h2>Certificates</h2>
 
 <table>
-<tr><th>Signed by</th><th>Name</th><th>Value</th></tr>
 <%
 certs = mt.certs(id)
 for cert in certs:
 %>
 <tr>
-	<td valign="top"><%="%s (%s)" % (hq(cert.get('Key', '')), hq(cert.get('Sig', '')))%></td>
-	<td valign="top"><%=hq(cert.get("Name", ''))%></td>
-	<td valign="top" style='border-left-color:black;border-left-width:1px;border-left-style:dashed;'><%=hq(cert.get("Value", ''))%></td>
+	<th valign="top"><%=hq(cert.get("Name", ''))%></td>
+	<td valign="top"><%=hq(cert.get("Value", ''))%></td>
+<!--	<td valign="top"><%="%s (%s)" % (hq(cert.get('Key', '')), hq(cert.get('Sig', '')))%></td>
+-->
 </tr>
 <%
 
@@ -53,6 +59,10 @@
 
 <h2>Revision details</h2>
 
+<p>
+Not yet implemented. Feel like writing a parser for monotone cat revision? :-)
+</p>
+
 <%
 revision = mt.revision(id)
 %>