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ifdef-stats.py
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ifdef-stats.py
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#!/usr/bin/env python
# -*- Mode: Python; indent-tabs-mode: nil -*-
# vi: set ts=4 sw=4 expandtab:
#
# The MIT License
#
# Copyright (c) 2011 Alexander Macdonald
#
# 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 os
import shutil
import tempfile
import re
import sys
import optparse
from ifdef.parser import *
def computestats(x, sizemap):
if isinstance(x, Ifdef):
for c in x.children:
computestats(c, sizemap)
elif isinstance(x, Branch):
if x.cond is not None:
tokens = gettokens(expr.parse((x.cond.expr))[0])
for t in tokens:
t = str(t)
if t not in sizemap:
sizemap[t] = 0
if x.size is None:
print "FAIL!"
sizemap[t] += x.size
for c in x.children:
computestats(c, sizemap)
def stats(file, sizemap):
print "Gathering stats for %s" % file
try:
root = parsefile(file)
calculatesizes(root)
computestats(root, sizemap)
except KeyboardInterrupt:
exit(0)
except:
print "-- Error with file %s:" % file
print sys.exc_info()[1]
def dumpstats(sizemap, outfile):
if len(sizemap) == 0:
return
print "Dumping stats to %s" % outfile
out = open(outfile, 'w')
ss = sorted([(v,k) for (k,v) in sizemap.items()])
for s in ss:
out.write("%d %s\n" % s)
out.close()
def accumulatestats(sizemap, infile):
for line in open(infile, 'r').readlines():
if line.startswith("#"):
continue
size = int(line.split()[0])
token = line.split()[1]
if token not in sizemap:
sizemap[token] = size
else:
sizemap[token] += size
# ------------------------------------------------------------------------------
# Main Entrypoint
# ------------------------------------------------------------------------------
if __name__ == "__main__":
optParser = optparse.OptionParser(usage='usage: %prog [ files ]\n\nIf no files are given then a recursive search for files ending\nwith c/cpp/mm/h is performed in the current directory.')
optParser.set_defaults()
optParser.add_option( '-m', '--merge-stats', dest="mergestats", default=False, action="store_true")
optParser.add_option( '-t', '--generate-ifdef-tester', dest="generatetester", default=False, action="store_true")
(opts, args) = optParser.parse_args()
sizemap = {}
if opts.mergestats:
for (path, dirs, files) in os.walk("."):
for file in files:
fullpath = "%s/%s" % (path, file)
if file == "ifdefstats.txt":
print "# merging stats from %s" % fullpath
accumulatestats(sizemap, fullpath)
ss = sorted([(v,k) for (k,v) in sizemap.items()], reverse=True)
for s in ss:
print "%d %s" % s
exit(0)
if opts.generatetester:
if len(args) != 1:
print "point at the stats file you want to use"
exit(0)
accumulatestats(sizemap, args[0])
ss = sorted(sizemap.items())
for (k,v) in ss:
try:
int(k)
continue
except ValueError,TypeError:
pass
if k.find("\\") >= 0:
continue
print "#if defined(%s)" % k
print " #warning %s is ENABLED" % (k)
print "#else"
print " #warning %s is DISABLED" % k
print "#endif\n"
exit(0)
if len(args) == 0:
for (path, dirs, files) in os.walk("."):
for file in files:
if any(file.endswith(x) for x in [".c", ".cpp", ".h", ".mm"]):
fullpath = "%s/%s" % (path, file)
stats(fullpath, sizemap)
dumpstats(sizemap, path + "/ifdefstats.txt")
sizemap = {}
else:
for fullpath in args:
stats(fullpath, sizemap)
ss = sorted([(v,k) for (k,v) in sizemap.items()])
for s in ss:
print "%d %s" % s