gem5/util/style/style.py
Jason Lowe-Power 87b9f0b87b misc: Update #!env calls for python to explicit version
In some newer Linux distributions, env python default to Python 3.0. This
patch explicitly uses "python2" instead of just "python" for all scripts
that use #!

Reported-by: Sanchayan Maity <maitysanchayan@gmail.com>
Signed-off-by: Jason Lowe-Power <jason@lowepower.com>
2017-02-10 10:00:18 -05:00

151 lines
5 KiB
Python

#! /usr/bin/env python2
# Copyright (c) 2014, 2016 ARM Limited
# All rights reserved
#
# The license below extends only to copyright in the software and shall
# not be construed as granting a license to any other intellectual
# property including but not limited to intellectual property relating
# to a hardware implementation of the functionality of the software
# licensed hereunder. You may use the software subject to the license
# terms below provided that you ensure that this notice is replicated
# unmodified and in its entirety in all distributions of the software,
# modified or unmodified, in source code or in binary form.
#
# Copyright (c) 2006 The Regents of The University of Michigan
# Copyright (c) 2007,2011 The Hewlett-Packard Development Company
# Copyright (c) 2016 Advanced Micro Devices, Inc.
# All rights reserved.
#
# Redistribution and use in source and binary forms, with or without
# modification, are permitted provided that the following conditions are
# met: redistributions of source code must retain the above copyright
# notice, this list of conditions and the following disclaimer;
# redistributions in binary form must reproduce the above copyright
# notice, this list of conditions and the following disclaimer in the
# documentation and/or other materials provided with the distribution;
# neither the name of the copyright holders nor the names of its
# contributors may be used to endorse or promote products derived from
# this software without specific prior written permission.
#
# THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
# "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
# LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
# A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
# OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
# SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
# LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
# DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
# THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
# (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
# OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
#
# Authors: Nathan Binkert
# Steve Reinhardt
# Andreas Sandberg
from abc import ABCMeta, abstractmethod
import difflib
import re
import sys
from region import *
tabsize = 8
lead = re.compile(r'^([ \t]+)')
trail = re.compile(r'([ \t]+)$')
any_control = re.compile(r'\b(if|while|for)([ \t]*)\(')
class UserInterface(object):
__metaclass__ = ABCMeta
def __init__(self, verbose=False):
self.verbose = verbose
def prompt(self, prompt, results, default):
while True:
result = self._prompt(prompt, results, default)
if result in results:
return result
@abstractmethod
def _prompt(self, prompt, results, default):
pass
@abstractmethod
def write(self, string):
pass
class StdioUI(UserInterface):
def _prompt(self, prompt, results, default):
return raw_input(prompt) or default
def write(self, string):
sys.stdout.write(string)
class MercurialUI(UserInterface):
def __init__(self, ui, *args, **kwargs):
super(MercurialUI, self).__init__(*args, **kwargs)
self.hg_ui = ui
def _prompt(self, prompt, results, default):
return self.hg_ui.prompt(prompt, default=default)
def write(self, string):
self.hg_ui.write(string)
def _re_ignore(expr):
"""Helper function to create regular expression ignore file
matcher functions"""
rex = re.compile(expr)
def match_re(fname):
return rex.match(fname)
return match_re
# This list contains a list of functions that are called to determine
# if a file should be excluded from the style matching rules or
# not. The functions are called with the file name relative to the
# repository root (without a leading slash) as their argument. A file
# is excluded if any function in the list returns true.
style_ignores = [
# Ignore external projects as they are unlikely to follow the gem5
# coding convention.
_re_ignore("^ext/"),
# Ignore test data, as they are not code
_re_ignore("^tests/(?:quick|long)/"),
]
def check_ignores(fname):
"""Check if a file name matches any of the ignore rules"""
for rule in style_ignores:
if rule(fname):
return True
return False
def normalized_len(line):
"""Return a normalized line length with expanded tabs"""
count = 0
for c in line:
if c == '\t':
count += tabsize - count % tabsize
else:
count += 1
return count
def modified_regions(old, new, context=0):
regions = Regions()
m = difflib.SequenceMatcher(a=old, b=new, autojunk=False)
for group in m.get_grouped_opcodes(context):
first = group[0]
last = group[-1]
regions.extend(Region(first[3], last[4] + 1))
return regions