92c4698678
The default format is png (and not svg) so we should note that instead of having svg mentioned (this was leftover from the clone of this from taskflow which does default to svg). Change-Id: I108857ecc606ed2c12e0d5b460a8e72eb95af740
128 lines
4.3 KiB
Python
Executable File
128 lines
4.3 KiB
Python
Executable File
#!/usr/bin/env python
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# Copyright (C) 2014 Yahoo! Inc. All Rights Reserved.
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#
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# Licensed under the Apache License, Version 2.0 (the "License"); you may
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# not use this file except in compliance with the License. You may obtain
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# a copy of the License at
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#
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# http://www.apache.org/licenses/LICENSE-2.0
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#
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# Unless required by applicable law or agreed to in writing, software
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# distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
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# WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
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# License for the specific language governing permissions and limitations
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# under the License.
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import optparse
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import os
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import sys
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top_dir = os.path.abspath(os.path.join(os.path.dirname(__file__),
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os.pardir))
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sys.path.insert(0, top_dir)
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# To get this installed you may have to follow:
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# https://code.google.com/p/pydot/issues/detail?id=93 (until fixed).
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import pydot
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from ironic.common import states
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def print_header(text):
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print("*" * len(text))
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print(text)
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print("*" * len(text))
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def map_color(text):
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# If the text contains 'error' then we'll return red...
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if 'error' in text:
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return 'red'
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else:
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return None
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def format_state(state):
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# Changes a state (mainly NOSTATE which is the None object) into
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# a nicer string...
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if state == states.NOSTATE:
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state = 'no-state'
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return state
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def main():
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parser = optparse.OptionParser()
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parser.add_option("-f", "--file", dest="filename",
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help="write output to FILE", metavar="FILE")
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parser.add_option("-T", "--format", dest="format",
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help="output in given format (default: png)",
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default='png')
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parser.add_option("--no-labels", dest="labels",
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help="do not include labels",
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action='store_false', default=True)
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(options, args) = parser.parse_args()
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if options.filename is None:
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options.filename = 'states.%s' % options.format
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source = states.machine
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graph_name = "Ironic states"
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g = pydot.Dot(graph_name=graph_name, rankdir='LR',
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nodesep='0.25', overlap='false',
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ranksep="0.5", size="11x8.5",
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splines='true', ordering='in')
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node_attrs = {
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'fontsize': '11',
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}
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nodes = {}
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for (start_state, on_event, end_state) in source:
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start_state = format_state(start_state)
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end_state = format_state(end_state)
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if start_state not in nodes:
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start_node_attrs = node_attrs.copy()
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text_color = map_color(start_state)
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if text_color:
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start_node_attrs['fontcolor'] = text_color
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nodes[start_state] = pydot.Node(start_state, **start_node_attrs)
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g.add_node(nodes[start_state])
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if end_state not in nodes:
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end_node_attrs = node_attrs.copy()
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text_color = map_color(end_state)
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if text_color:
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end_node_attrs['fontcolor'] = text_color
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nodes[end_state] = pydot.Node(end_state, **end_node_attrs)
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g.add_node(nodes[end_state])
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edge_attrs = {}
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if options.labels:
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edge_attrs['label'] = "on_%s" % on_event
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edge_color = map_color(on_event)
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if edge_color:
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edge_attrs['fontcolor'] = edge_color
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g.add_edge(pydot.Edge(nodes[start_state], nodes[end_state],
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**edge_attrs))
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# Make nice start states...
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starts = [
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format_state(source.start_state),
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]
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for i, s in enumerate(starts):
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name = "__start_%s__" % i
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start = pydot.Node(name, shape="point", width="0.1",
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xlabel='start', fontcolor='green', **node_attrs)
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g.add_node(start)
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g.add_edge(pydot.Edge(start, nodes[s], style='dotted'))
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print_header(graph_name)
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print(g.to_string().strip())
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g.write(options.filename, format=options.format)
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print_header("Created %s at '%s'" % (options.format, options.filename))
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# To make the svg more pretty use the following:
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# $ xsltproc ../diagram-tools/notugly.xsl ./states.svg > pretty-states.svg
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# Get diagram-tools from https://github.com/vidarh/diagram-tools.git
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if __name__ == '__main__':
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main()
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