graphmod: fix seen state handling for > 2 parents (issue5174)
When there are more than 2 parents for a given node (in a sparse graph), extra
dummy nodes are inserted to transition the lines more gradually. However, since
the seen state was not updated when yielding the extra nodes, the wrong graph
styles were being applied to the nodes.
#!/usr/bin/env python
#
# Based on python's Tools/scripts/md5sum.py
#
# This software may be used and distributed according to the terms
# of the PYTHON SOFTWARE FOUNDATION LICENSE VERSION 2, which is
# GPL-compatible.
import sys, os
try:
from hashlib import md5
except ImportError:
from md5 import md5
try:
import msvcrt
msvcrt.setmode(sys.stdout.fileno(), os.O_BINARY)
msvcrt.setmode(sys.stderr.fileno(), os.O_BINARY)
except ImportError:
pass
for filename in sys.argv[1:]:
try:
fp = open(filename, 'rb')
except IOError as msg:
sys.stderr.write('%s: Can\'t open: %s\n' % (filename, msg))
sys.exit(1)
m = md5()
try:
while True:
data = fp.read(8192)
if not data:
break
m.update(data)
except IOError as msg:
sys.stderr.write('%s: I/O error: %s\n' % (filename, msg))
sys.exit(1)
sys.stdout.write('%s %s\n' % (m.hexdigest(), filename))
sys.exit(0)