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#!/usr/bin/env python2.4
from subprocess import Popen, PIPE
from urllib import urlencode
from xml.sax.saxutils import escape
import os.path
import errno
import tempfile
import shutil
mail_map = {}
class NoDot(Exception):
def __init__(self):
Exception.__init__(self, "Can't find dot!")
class NoRsvg(Exception):
def __init__(self):
Exception.__init__(self, "Can't find rsvg!")
class Node(object):
def __init__(self, name, color=None, label=None, rev_id=None,
cluster=None):
self.name = name
self.color = color
self.label = label
self.committer = None
self.rev_id = rev_id
self.node_style = []
self.cluster = cluster
def get_committer(self):
if self.committer is not None:
if '@' in self.committer:
try:
return mail_map[self.committer]
except KeyError:
pass
return self.committer
elif self.rev_id is not None:
try:
first_segment = '-'.join(self.rev_id.split('-')[:-2])\
.strip(' ')
except ValueError:
first_segment = []
if '@' in first_segment:
try:
return mail_map[first_segment]
except KeyError:
return first_segment
def get_label(self):
label = None
committer = self.get_committer()
if committer is not None:
label = "%s\\n%s" % (self.name, committer)
return label
def define(self):
attributes = []
style = []
if self.color is not None:
attributes.append('fillcolor="%s"' % self.color)
style.append('filled')
style.extend(self.node_style)
if len(style) > 0:
attributes.append('style="%s"' % ",".join(style))
label = self.get_label()
if label is not None:
attributes.append('label="%s"' % label)
attributes.append('shape="box"')
if len(attributes) > 0:
return '%s[%s]' % (self.name, " ".join(attributes))
def __str__(self):
return self.name
def dot_output(relations):
defined = set()
yield "digraph G\n"
yield "{\n"
clusters = set()
def rel_appropriate(start, end, cluster):
if cluster is None:
return start.cluster is None or end.cluster is None
else:
return start.cluster==cluster and end.cluster==cluster
for (start, end) in relations:
if start.cluster is not None:
clusters.add(start.cluster)
if end.cluster is not None:
clusters.add(end.cluster)
clusters = list(clusters)
clusters.append(None)
for index, cluster in enumerate(clusters):
if cluster is not None:
yield "subgraph cluster_%s\n" % index
yield "{\n"
yield ' label="%s"\n' % cluster
for (start, end) in relations:
if start.name not in defined and start.cluster == cluster:
defined.add(start.name)
my_def = start.define()
if my_def is not None:
yield " %s;\n" % my_def
if end.name not in defined and end.cluster == cluster:
defined.add(end.name)
my_def = end.define()
if my_def is not None:
yield " %s;\n" % my_def
if rel_appropriate(start, end, cluster):
yield " %s->%s;\n" % (start.name, end.name)
if cluster is not None:
yield "}\n"
yield "}\n"
def invoke_dot_aa(input, out_file, file_type='png'):
"""\
Produce antialiased Dot output, invoking rsvg on an intermediate file.
rsvg only supports png, jpeg and .ico files."""
tempdir = tempfile.mkdtemp()
try:
temp_file = os.path.join(tempdir, 'temp.svg')
invoke_dot(input, temp_file, 'svg')
cmdline = ['rsvg', temp_file, out_file]
try:
rsvg_proc = Popen(cmdline)
except OSError, e:
if e.errno == errno.ENOENT:
raise NoRsvg()
status = rsvg_proc.wait()
finally:
shutil.rmtree(tempdir)
return status
def invoke_dot(input, out_file=None, file_type='svg', antialias=None):
cmdline = ['dot', '-T%s' % file_type]
if out_file is not None:
cmdline.extend(('-o', out_file))
try:
dot_proc = Popen(cmdline, stdin=PIPE)
except OSError, e:
if e.errno == errno.ENOENT:
raise NoDot()
else:
raise
for line in input:
dot_proc.stdin.write(line)
dot_proc.stdin.close()
return dot_proc.wait()
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