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#! /usr/bin/env python2.7
# Copyright (c) 2014 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
import sys
import os
from os.path import join as joinpath
current_dir = os.path.dirname(__file__)
sys.path.insert(0, current_dir)
from style.verifiers import all_verifiers
from style.style import MercurialUI, check_ignores
from style.region import *
from mercurial import bdiff, mdiff, commands
def modified_regions(old_data, new_data):
regions = Regions()
beg = None
for pbeg, pend, fbeg, fend in bdiff.blocks(old_data, new_data):
if beg is not None and beg != fbeg:
regions.append(beg, fbeg)
beg = fend
return regions
def modregions(wctx, fname):
fctx = wctx.filectx(fname)
pctx = fctx.parents()
file_data = fctx.data()
lines = mdiff.splitnewlines(file_data)
if len(pctx) in (1, 2):
mod_regions = modified_regions(pctx[0].data(), file_data)
if len(pctx) == 2:
m2 = modified_regions(pctx[1].data(), file_data)
# only the lines that are new in both
mod_regions &= m2
else:
mod_regions = Regions()
mod_regions.append(0, len(lines))
return mod_regions
def _modified_regions(repo, patterns, **kwargs):
opt_all = kwargs.get('all', False)
opt_no_ignore = kwargs.get('no_ignore', False)
# Import the match (repository file name matching helper)
# function. Different versions of Mercurial keep it in different
# modules and implement them differently.
try:
from mercurial import scmutil
m = scmutil.match(repo[None], patterns, kwargs)
except ImportError:
from mercurial import cmdutil
m = cmdutil.match(repo, patterns, kwargs)
modified, added, removed, deleted, unknown, ignore, clean = \
repo.status(match=m, clean=opt_all)
if not opt_all:
try:
wctx = repo.workingctx()
except:
from mercurial import context
wctx = context.workingctx(repo)
files = [ (fn, all_regions) for fn in added ] + \
[ (fn, modregions(wctx, fn)) for fn in modified ]
else:
files = [ (fn, all_regions) for fn in added + modified + clean ]
for fname, mod_regions in files:
if opt_no_ignore or not check_ignores(fname):
yield fname, mod_regions
def do_check_style(hgui, repo, *pats, **opts):
"""check files for proper m5 style guidelines
Without an argument, checks all modified and added files for gem5
coding style violations. A list of files can be specified to limit
the checker to a subset of the repository. The style rules are
normally applied on a diff of the repository state (i.e., added
files are checked in their entirety while only modifications of
modified files are checked).
The --all option can be specified to include clean files and check
modified files in their entirety.
The --fix-<check>, --ignore-<check>, and --skip-<check> options
can be used to control individual style checks:
--fix-<check> will perform the check and automatically attempt to
fix sny style error (printing a warning if unsuccessful)
--ignore-<check> will perform the check but ignore any errors
found (other than printing a message for each)
--skip-<check> will skip performing the check entirely
If none of these options are given, all checks will be performed
and the user will be prompted on how to handle each error.
--fix-all, --ignore-all, and --skip-all are equivalent to specifying
--fix-<check>, --ignore-<check>, or --skip-<check> for all checks,
respectively. However, option settings for specific checks take
precedence. Thus --skip-all --fix-white can be used to skip every
check other than whitespace errors, which will be checked and
automatically fixed.
The -v/--verbose flag will display the offending line(s) as well
as their location.
"""
ui = MercurialUI(hgui, verbose=hgui.verbose)
# instantiate varifier objects
verifiers = [v(ui, opts, base=repo.root) for v in all_verifiers]
for fname, mod_regions in _modified_regions(repo, pats, **opts):
for verifier in verifiers:
if verifier.apply(joinpath(repo.root, fname), mod_regions):
return True
return False
def check_hook(hooktype):
if hooktype not in ('pretxncommit', 'pre-qrefresh'):
raise AttributeError, \
"This hook is not meant for %s" % hooktype
# This function provides a hook that is called before transaction
# commit and on qrefresh
def check_style(ui, repo, hooktype, **kwargs):
check_hook(hooktype)
args = {}
try:
return do_check_style(ui, repo, **args)
except Exception, e:
import traceback
traceback.print_exc()
return True
try:
from mercurial.i18n import _
except ImportError:
def _(arg):
return arg
_common_region_options = [
('a', 'all', False,
_("include clean files and unmodified parts of modified files")),
('', 'no-ignore', False, _("ignore the style ignore list")),
]
fix_opts = [('f', 'fix-all', False, _("fix all style errors"))] + \
[('', 'fix-' + v.opt_name, False,
_('fix errors in ' + v.test_name)) for v in all_verifiers]
ignore_opts = [('', 'ignore-all', False, _("ignore all style errors"))] + \
[('', 'ignore-' + v.opt_name, False,
_('ignore errors in ' + v.test_name)) for v in all_verifiers]
skip_opts = [('', 'skip-all', False, _("skip all style error checks"))] + \
[('', 'skip-' + v.opt_name, False,
_('skip checking for ' + v.test_name)) for v in all_verifiers]
all_opts = fix_opts + ignore_opts + skip_opts
cmdtable = {
'^m5style' : (
do_check_style, all_opts + _common_region_options + commands.walkopts,
_('hg m5style [-a] [FILE]...')),
}
if __name__ == '__main__':
print >> sys.stderr, "This file cannot be used from the command line. Use"
print >> sys.stderr, "style.py instead."
sys.exit(1)
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