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#!/usr/bin/env python
#############################################################################
##
## Copyright (C) 2014 Digia Plc and/or its subsidiary(-ies).
## Contact: http://www.qt-project.org/legal
##
## This file is part of Qt Creator.
##
## Commercial License Usage
## Licensees holding valid commercial Qt licenses may use this file in
## accordance with the commercial license agreement provided with the
## Software or, alternatively, in accordance with the terms contained in
## a written agreement between you and Digia. For licensing terms and
## conditions see http://qt.digia.com/licensing. For further information
## use the contact form at http://qt.digia.com/contact-us.
##
## GNU Lesser General Public License Usage
## Alternatively, this file may be used under the terms of the GNU Lesser
## General Public License version 2.1 as published by the Free Software
## Foundation and appearing in the file LICENSE.LGPL included in the
## packaging of this file. Please review the following information to
## ensure the GNU Lesser General Public License version 2.1 requirements
## will be met: http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html.
##
## In addition, as a special exception, Digia gives you certain additional
## rights. These rights are described in the Digia Qt LGPL Exception
## version 1.1, included in the file LGPL_EXCEPTION.txt in this package.
##
#############################################################################
import os
import sys
import tokenize
from optparse import OptionParser
from toolfunctions import checkDirectory
from toolfunctions import getFileContent
objMap = None
lastToken = [None, None]
stopTokens = ('OP', 'NAME', 'NUMBER', 'ENDMARKER')
def parseCommandLine():
global directory, onlyRemovable
parser = OptionParser("\n%prog [OPTIONS] [DIRECTORY]")
parser.add_option("-o", "--only-removable", dest="onlyRemovable",
action="store_true", default=False,
help="list removable objects only")
(options, args) = parser.parse_args()
if len(args) == 0:
directory = os.path.abspath(".")
elif len(args) == 1:
directory = os.path.abspath(args[0])
else:
print "\nERROR: Too many arguments\n"
parser.print_help()
sys.exit(1)
onlyRemovable = options.onlyRemovable
def collectObjects():
global objMap
data = getFileContent(objMap)
return map(lambda x: x.strip().split("\t", 1)[0], data.strip().splitlines())
def handleStringsWithTrailingBackSlash(origStr):
try:
while True:
index = origStr.index("\\\n")
origStr = origStr[:index] + origStr[index+2:].lstrip()
except:
return origStr
def handle_token(tokenType, token, (startRow, startCol), (endRow, endCol), line):
global useCounts, lastToken, stopTokens
if tokenize.tok_name[tokenType] == 'STRING':
# concatenate strings followed directly by other strings
if lastToken[0] == 'STRING':
token = "'" + lastToken[1][1:-1] + str(token)[1:-1] + "'"
# store the new string as lastToken after removing potential trailing backslashes
# (including their following indentation)
lastToken = ['STRING' , handleStringsWithTrailingBackSlash(str(token))]
# if a stop token occurs check the potential string before it
elif tokenize.tok_name[tokenType] in stopTokens:
if lastToken[0] == 'STRING':
for obj in useCounts:
useCounts[obj] += lastToken[1].count("'%s'" % obj)
useCounts[obj] += lastToken[1].count('"%s"' % obj)
# store the stop token as lastToken
lastToken = [tokenize.tok_name[tokenType], str(token)]
def handleDataFiles(openFile, separator):
global useCounts
# ignore header line
openFile.readline()
for line in openFile:
currentTokens = line.split(separator)
for token in currentTokens:
stripped = token.strip().strip('"')
if stripped in useCounts:
useCounts[stripped] = useCounts[stripped] + 1
def findUsages():
global directory, objMap
suffixes = (".py", ".csv", ".tsv")
for root, dirnames, filenames in os.walk(directory):
for filename in filter(lambda x: x.endswith(suffixes), filenames):
currentFile = open(os.path.join(root, filename))
if filename.endswith(".py"):
tokenize.tokenize(currentFile.readline, handle_token)
elif filename.endswith(".csv"):
handleDataFiles(currentFile, ",")
elif filename.endswith(".tsv"):
handleDataFiles(currentFile, "\t")
currentFile.close()
currentFile = open(objMap)
tokenize.tokenize(currentFile.readline, handle_token)
currentFile.close()
def printResult():
global useCounts, onlyRemovable
print
if onlyRemovable:
if min(useCounts.values()) > 0:
print "All objects are used once at least.\n"
return False
print "Unused objects:\n"
for obj in filter(lambda x: useCounts[x] == 0, useCounts):
print "%s" % obj
return True
else:
length = max(map(len, useCounts.keys()))
outFormat = "%%%ds %%3d" % length
for obj,useCount in useCounts.iteritems():
print outFormat % (obj, useCount)
print
return None
def main():
global useCounts, objMap
objMap = checkDirectory(directory)
useCounts = dict.fromkeys(collectObjects(), 0)
findUsages()
atLeastOneRemovable = printResult()
if atLeastOneRemovable:
print "\nAfter removing the listed objects you should re-run this tool"
print "to find objects that might have been used only by these objects.\n"
return 0
if __name__ == '__main__':
parseCommandLine()
sys.exit(main())
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