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#!/usr/bin/env python
"""
Show Botan module dependencies as a list or graph.
Requires graphviz from pip when graphical output is selected:
https://pypi.python.org/pypi/graphviz
(C) 2015 Simon Warta (Kullo GmbH)
Botan is released under the Simplified BSD License (see license.txt)
"""
# global
import argparse
import copy
import sys
import subprocess
from collections import OrderedDict
import glob
import os
# Assume this script is in botan/src/scripts
botan_root = os.path.join(os.path.dirname(sys.argv[0]), "..", "..")
# locale
sys.path.append(botan_root)
from configure import ModuleInfo
parser = argparse.ArgumentParser(description=
'Show Botan module dependencies. '
'The output is reduced by indirect dependencies, '
'i.e. you must look at the result recursively to get all dependencies.')
parser.add_argument('mode',
choices=["list", "draw"],
help='The output mode')
parser.add_argument('--format',
nargs='?',
choices=["pdf", "png"],
default="pdf",
help='The file format (drawing mode only)')
parser.add_argument('--engine',
nargs='?',
choices=["fdp", "dot"],
default="fdp",
help='The graph engine (drawing mode only)')
parser.add_argument('--all', dest='all', action='store_const',
const=True, default=False,
help='Show all dependencies. Default: direct dependencies only. (list mode only)')
parser.add_argument('--verbose', dest='verbose', action='store_const',
const=True, default=False,
help='Verbose output (default: false)')
args = parser.parse_args()
files = []
files += glob.glob(botan_root + '/src/lib/*/*/*/*/*/*/info.txt')
files += glob.glob(botan_root + '/src/lib/*/*/*/*/*/info.txt')
files += glob.glob(botan_root + '/src/lib/*/*/*/*/info.txt')
files += glob.glob(botan_root + '/src/lib/*/*/*/info.txt')
files += glob.glob(botan_root + '/src/lib/*/*/info.txt')
files += glob.glob(botan_root + '/src/lib/*/info.txt')
files += glob.glob(botan_root + '/src/lib/info.txt')
files.sort()
if len(files) == 0:
print("No info.txt files found.")
sys.exit(1)
modules = []
def dicts(t): return {k: dicts(t[k]) for k in t}
def paths(t, path = [], level=0):
ret = []
for key in t:
ret.append(path + [key])
ret += paths(t[key], path + [key], level+1)
return ret
if args.verbose:
print("Getting dependencies from into.txt files ...")
for filename in files:
(rest, info_txt) = os.path.split(filename)
(rest, modname) = os.path.split(rest)
module = ModuleInfo(filename)
modules.append(module)
if args.verbose:
print(module.basename)
print("\t" + str(set(module.dependencies())))
if args.verbose:
print(str(len(modules)) + " modules:")
names=[m.basename for m in modules]
names.sort()
print(names)
print("")
if args.verbose:
print("resolving dependencies ...")
def cartinality(depdict):
return sum([len(depdict[k]) for k in depdict])
registered_dependencies = dict()
all_dependencies = dict()
direct_dependencies = dict()
for module in modules:
lst = module.dependencies()
registered_dependencies[module.basename] = set(lst) - set([module.basename])
# Get all_dependencies from registered_dependencies
def add_dependency():
for key in all_dependencies:
potentially_new_modules_for_key = None
new_modules_for_key = None
for currently_in in all_dependencies[key]:
if currently_in in all_dependencies:
potentially_new_modules_for_key = all_dependencies[currently_in] - set([key])
if not potentially_new_modules_for_key <= all_dependencies[key]:
new_modules_for_key = potentially_new_modules_for_key.copy()
break
if new_modules_for_key:
all_dependencies[key] |= new_modules_for_key
return
all_dependencies = copy.deepcopy(registered_dependencies)
direct_dependencies = copy.deepcopy(registered_dependencies)
# Sort
all_dependencies = OrderedDict(sorted(all_dependencies.items()))
direct_dependencies = OrderedDict(sorted(direct_dependencies.items()))
#print(direct_dependencies)
last_card = -1
while True:
card = cartinality(all_dependencies)
# print(card)
if card == last_card:
break;
last_card = card
add_dependency()
# Return true iff a depends on b,
# i.e. b is in the dependencies of a
def depends_on(a, b):
if not a in direct_dependencies:
return False
else:
return b in direct_dependencies[a]
def remove_indirect_dependencies():
for mod in direct_dependencies:
for one in direct_dependencies[mod]:
others = direct_dependencies[mod] - set([one])
for other in others:
if depends_on(other, one):
direct_dependencies[mod].remove(one)
return
# Go to next mod
last_card = -1
while True:
card = cartinality(direct_dependencies)
# print(card)
if card == last_card:
break;
last_card = card
remove_indirect_dependencies()
def openfile(f):
if sys.platform.startswith('linux'):
subprocess.call(["xdg-open", f])
else:
os.startfile(f)
if args.verbose:
print("Done resolving dependencies.")
if args.mode == "list":
if args.all:
for key in all_dependencies:
print(key.ljust(17) + " : " + ", ".join(sorted(all_dependencies[key])))
else:
for key in direct_dependencies:
print(key.ljust(17) + " : " + ", ".join(sorted(direct_dependencies[key])))
if args.mode == "draw":
import graphviz as gv
import tempfile
tmpdir = tempfile.mkdtemp(prefix="botan-")
g2 = gv.Digraph(format=args.format, engine=args.engine)
for key in direct_dependencies:
g2.node(key)
for dep in direct_dependencies[key]:
g2.edge(key, dep)
if args.verbose:
print("Rendering graph ...")
filename = g2.render(filename='graph', directory=tmpdir)
if args.verbose:
print("Opening " + filename + " ...")
openfile(filename)
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