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#! /usr/bin/python3
# Copyright 2004 Toby Dickenson
#
# Permission is hereby granted, free of charge, to any person obtaining
# a copy of this software and associated documentation files (the
# "Software"), to deal in the Software without restriction, including
# without limitation the rights to use, copy, modify, merge, publish,
# distribute, sublicense, and/or sell copies of the Software, and to
# permit persons to whom the Software is furnished to do so, subject
# to the following conditions:
#
# The above copyright notice and this permission notice shall be included
# in all copies or substantial portions of the Software.
#
# THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
# EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
# MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
# IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY
# CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
# TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
# SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
import sys, getopt, colorsys, imp, hashlib
class pydepgraphdot:
def main(self,argv):
opts,args = getopt.getopt(argv,'',['mono'])
self.colored = 1
for o,v in opts:
if o=='--mono':
self.colored = 0
self.render()
def fix(self,s):
# Convert a module name to a syntactically correct node name
return s.replace('.','_')
def render(self):
p,t = self.get_data()
# normalise our input data
for k,d in list(p.items()):
for v in list(d.keys()):
if v not in p:
p[v] = {}
f = self.get_output_file()
f.write('digraph G {\n')
#f.write('concentrate = true;\n')
#f.write('ordering = out;\n')
f.write('ranksep=1.0;\n')
f.write('node [style=filled,fontname=Helvetica,fontsize=10];\n')
allkd = list(p.items())
allkd.sort()
for k,d in allkd:
tk = t.get(k)
if self.use(k,tk):
allv = list(d.keys())
allv.sort()
for v in allv:
tv = t.get(v)
if self.use(v,tv) and not self.toocommon(v,tv):
f.write('%s -> %s' % ( self.fix(k),self.fix(v) ) )
self.write_attributes(f,self.edge_attributes(k,v))
f.write(';\n')
f.write(self.fix(k))
self.write_attributes(f,self.node_attributes(k,tk))
f.write(';\n')
f.write('}\n')
def write_attributes(self,f,a):
if a:
f.write(' [')
f.write(','.join(a))
f.write(']')
def node_attributes(self,k,type):
a = []
a.append('label="%s"' % self.label(k))
if self.colored:
a.append('fillcolor="%s"' % self.color(k,type))
else:
a.append('fillcolor=white')
if self.toocommon(k,type):
a.append('peripheries=2')
return a
def edge_attributes(self,k,v):
a = []
weight = self.weight(k,v)
if weight!=1:
a.append('weight=%d' % weight)
length = self.alien(k,v)
if length:
a.append('minlen=%d' % length)
return a
def get_data(self):
t = eval(sys.stdin.read())
return t['depgraph'],t['types']
def get_output_file(self):
return sys.stdout
def use(self,s,type):
# Return true if this module is interesting and should be drawn. Return false
# if it should be completely omitted. This is a default policy - please override.
if s=='__main__':
return 0
#if s in ('os','sys','time','__future__','types','re','string'):
if s in ('sys'):
# nearly all modules use all of these... more or less. They add nothing to
# our diagram.
return 0
if s.startswith('encodings.'):
return 0
if self.toocommon(s,type):
# A module where we dont want to draw references _to_. Dot doesnt handle these
# well, so it is probably best to not draw them at all.
return 0
return 1
def toocommon(self,s,type):
# Return true if references to this module are uninteresting. Such references
# do not get drawn. This is a default policy - please override.
#
if s=='__main__':
# references *to* __main__ are never interesting. omitting them means
# that main floats to the top of the page
return 1
#if type==imp.PKG_DIRECTORY:
# # dont draw references to packages.
# return 1
return 0
def weight(self,a,b):
# Return the weight of the dependency from a to b. Higher weights
# usually have shorter straighter edges. Return 1 if it has normal weight.
# A value of 4 is usually good for ensuring that a related pair of modules
# are drawn next to each other. This is a default policy - please override.
#
if b.split('.')[-1].startswith('_'):
# A module that starts with an underscore. You need a special reason to
# import these (for example random imports _random), so draw them close
# together
return 4
return 1
def alien(self,a,b):
# Return non-zero if references to this module are strange, and should be drawn
# extra-long. the value defines the length, in rank. This is also good for putting some
# vertical space between seperate subsystems. This is a default policy - please override.
#
return 0
def label(self,s):
# Convert a module name to a formatted node label. This is a default policy - please override.
#
return '\\.\\n'.join(s.split('.'))
def color(self,s,type):
# Return the node color for this module name. This is a default policy - please override.
#
# Calculate a color systematically based on the hash of the module name. Modules in the
# same package have the same color. Unpackaged modules are grey
t = self.normalise_module_name_for_hash_coloring(s,type)
return self.color_from_name(t)
def normalise_module_name_for_hash_coloring(self,s,type):
if type==imp.PKG_DIRECTORY:
return s
else:
i = s.rfind('.')
if i<0:
return ''
else:
return s[:i]
def color_from_name(self,name):
n = hashlib.md5(name.encode('utf-8')).digest()
hf = float(n[0]+n[1]*0xff)/0xffff
sf = float(n[2])/0xff
vf = float(n[3])/0xff
r,g,b = colorsys.hsv_to_rgb(hf, 0.3+0.6*sf, 0.8+0.2*vf)
return '#%02x%02x%02x' % (int(r*256),int(g*256),int(b*256))
def main():
pydepgraphdot().main(sys.argv[1:])
if __name__=='__main__':
main()
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