Created
August 28, 2012 09:29
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finds cpp files from given dir that are never included in given dir
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#!/usr/bin/env python | |
import sys | |
import re | |
import pprint | |
import os | |
import fnmatch | |
headers = { 'cpp': ['*.h', '*.hh', '*.hpp'] } | |
sources = { 'cpp': ['*.c', '*.cpp', '*.cc']} | |
main_returns = ['void', 'int', 'long', 'char', 'short'] | |
mains = [ '%s main'%ret for ret in main_returns] | |
def cpp_line_check(line): | |
pos = line.find('include') | |
if pos > -1: | |
imp = (line[pos+len('include'):]).strip(' "<>\n\r') | |
last = imp.split('/')[-1] | |
return last | |
return None | |
def get_files(search_dir, lang): | |
os.chdir(search_dir) | |
ext = headers[lang] + sources[lang] | |
patterns = re.compile('|'.join(fnmatch.translate(p) for p in ext)) | |
matches = [] | |
for root, dirs, files in os.walk(search_dir): | |
matches.extend([os.path.join(root,f) for f in files if patterns.match(f)]) | |
return matches | |
def build_imports(fn, lang, line_check): | |
with open(fn,'rb') as code: | |
imps = set() | |
for line in code: | |
imp = line_check(line) | |
if imp: | |
imps.add(imp) | |
return imps | |
def has_main(fn): | |
with open(fn,'rb') as code: | |
for line in code: | |
if 'main' in line: | |
if line.strip()[:line.find('main')-1] in main_returns: | |
return True | |
return False | |
try: | |
search_dir = sys.argv[1] | |
except: | |
search_dir = '.' | |
lang = 'cpp' | |
all_files = get_files(search_dir, lang) | |
includes = set() | |
for fn in all_files: | |
includes.update( build_imports(fn, lang, cpp_line_check) ) | |
orphans = [fn for fn in all_files if (os.path.basename(fn) not in includes) and not has_main(fn) ] | |
pp = pprint.PrettyPrinter(indent=2) | |
pp.pprint(orphans) | |
print('total orphans %d of %d files checked'%(len(orphans), len(includes))) |
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