#! /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()