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#!/usr/bin/env python
############################################################################
#
# Copyright (C) 2016 The Qt Company Ltd.
# Contact: https://www.qt.io/licensing/
#
# 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 The Qt Company. For licensing terms
# and conditions see https://www.qt.io/terms-conditions. For further
# information use the contact form at https://www.qt.io/contact-us.
#
# GNU General Public License Usage
# Alternatively, this file may be used under the terms of the GNU
# General Public License version 3 as published by the Free Software
# Foundation with exceptions as appearing in the file LICENSE.GPL3-EXCEPT
# included in the packaging of this file. Please review the following
# information to ensure the GNU General Public License requirements will
# be met: https://www.gnu.org/licenses/gpl-3.0.html.
#
############################################################################
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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