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#!/usr/bin/python
"""
Analyze the botan source tree and print the module interdependencies
(C) 2009 Jack Lloyd
Distributed under the terms of the Botan license
"""
import os
import os.path
import sys
import re
def find_deps_in(filename):
# By convention #include's with spaces before them are
# always wrapped in #ifdef blocks
regexp = re.compile('^#include <botan/(.*)>')
for line in open(filename).readlines():
match = regexp.match(line)
if match != None:
yield match.group(1).replace('internal/', '')
def get_dependencies(dirname):
all_dirdeps = {}
file_homes = {}
is_sourcefile = re.compile('\.(cpp|h|S)$')
for (dirpath, dirnames, filenames) in os.walk('src'):
dirdeps = set()
for filename in filenames:
if is_sourcefile.search(filename) != None:
file_homes[filename] = os.path.basename(dirpath)
for dep in find_deps_in(os.path.join(dirpath, filename)):
if dep not in filenames and dep != 'build.h':
dirdeps.add(dep)
dirdeps = sorted(dirdeps)
if dirdeps != []:
all_dirdeps[dirpath] = dirdeps
return (all_dirdeps, file_homes)
def main():
(all_dirdeps, file_homes) = get_dependencies('src')
def interesting_dep_for(dirname):
def interesting_dep(dep):
if dep == 'utils':
return False # everything depends on it
# block/serpent depends on block, etc
if dirname.find('/%s/' % (dep)) > 0:
return False
return True
return interesting_dep
for dirname in sorted(all_dirdeps.keys()):
depdirs = sorted(set(map(lambda x: file_homes[x], all_dirdeps[dirname])))
depdirs = filter(interesting_dep_for(dirname), depdirs)
if depdirs != []:
print "%s: %s" % (dirname, ' '.join(depdirs))
if __name__ == '__main__':
sys.exit(main())
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