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#!/usr/bin/env python
# -*- coding: utf-8 -*-
#
# Copyright (C) 2007-2023 Edgewall Software
# Copyright (C) 2007 Eli Carter <retracile@gmail.com>
# All rights reserved.
#
# This software is licensed as described in the file COPYING, which
# you should have received as part of this distribution. The terms
# are also available at https://trac.edgewall.org/wiki/TracLicense.
#
# This software consists of voluntary contributions made by many
# individuals. For the exact contribution history, see the revision
# history and logs, available at https://trac.edgewall.org/.
import sys
import getopt
import locale
import pkg_resources
pkg_resources.require('Trac')
from trac.config import Configuration
from trac.ticket.default_workflow import parse_workflow_config
_debug = False
def debug(s):
if _debug:
sys.stderr.write(s)
def readconfig(filename):
"""Returns a list of raw config options"""
config = Configuration(filename)
rawactions = list(config.options('ticket-workflow'))
debug("%s\n" % str(rawactions))
if not rawactions:
sys.stderr.write("ERROR: You don't seem to have a [ticket-workflow] "
"section.\n")
sys.exit(1)
return rawactions
class ColorScheme(object):
# cyan, yellow are too light in color
colors = ['black', 'blue', 'red', 'green', 'purple', 'orange',
'darkgreen']
def __init__(self):
self.mapping = {}
self.coloruse = [0] * len(self.colors)
def get_color(self, name):
try:
colornum = self.mapping[name]
except KeyError:
self.mapping[name] = colornum = self.pick_color(name)
self.coloruse[colornum] += 1
return self.colors[colornum]
def pick_color(self, name):
"""Pick a color that has not been used much so far."""
return self.coloruse.index(min(self.coloruse))
def actions2graphviz(actions, show_ops=False, show_perms=False):
"""Returns a list of lines to be fed to graphviz."""
# The size value makes it easier to create a useful printout.
color_scheme = ColorScheme()
digraph_lines = ["""
digraph G {
center=1
size="10,8"
{ rank=source; new [ shape=invtrapezium ] }
{ rank=sink; closed [ shape=trapezium ] }
"""]
for action, attributes in actions.items():
label = [attributes['label']]
if show_ops:
label += attributes['operations']
if show_perms:
label += attributes['permissions']
if 'set_resolution' in attributes:
label += ['(' + attributes['set_resolution'] + ')']
for oldstate in attributes['oldstates']:
color = color_scheme.get_color(attributes['label'])
digraph_lines.append(
' "%s" -> "%s" [label="%s" color=%s fontcolor=%s]' %
(oldstate, attributes['newstate'], '\\n'.join(label), color,
color))
digraph_lines.append('}')
return digraph_lines
def main(filename, output, show_ops=False, show_perms=False):
# Read in the config
rawactions = readconfig(filename)
# Parse the config information
actions = parse_workflow_config(rawactions)
# Convert to graphviz
digraph_lines = actions2graphviz(actions, show_ops, show_perms)
# And output
output.write('\n'.join(digraph_lines))
def usage(output):
output.write('workflow_parser [options] configfile.ini [output.dot]\n'
'-h --help shows this message\n'
'-o --operations include operations in the graph\n'
'-p --permissions include permissions in the graph\n')
if __name__ == '__main__':
show_ops = False
show_perms = False
try:
opts, args = getopt.getopt(sys.argv[1:], 'hop', ['help', 'operations',
'permissions'])
except getopt.GetoptError:
usage(sys.stderr)
sys.exit(1)
for option, argument in opts:
if option in ('-h', '--help'):
usage(sys.stdout)
sys.exit(0)
elif option in ('-o', '--operations'):
show_ops = True
elif option in ('-p', '--permissions'):
show_perms = True
if not args:
sys.stderr.write('Syntax error: config filename required.\n')
usage(sys.stderr)
sys.stderr.flush()
sys.exit(1)
ini_filename = args[0]
if len(args) > 1:
output = open(args[1], 'w', encoding='utf-8')
else:
output = sys.stdout
main(ini_filename, output, show_ops, show_perms)
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