gem5/util/style.py
Andreas Sandberg faaf2d396f style: Add options to select checkers and apply fixes
Add an option, --checker/-c, to style.py that selects individual style
checkers to apply. When this option isn't specified, the script
defaults to all available style checkers. The option may be specified
multiple times to run multiple style checkers.

The option, --fix/-f, can be specified to automatically fix style
violations.

Change-Id: Id7597fba6b65cecfa17a88b1c87c8a4c8315af59
Signed-off-by: Andreas Sandberg <andreas.sandberg@arm.com>
Reviewed-by: Andreas Hansson <andreas.hansson@arm.com>
2016-11-25 10:33:15 +00:00

147 lines
5.5 KiB
Python
Executable file

#! /usr/bin/env python
#
# Copyright (c) 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.
#
# 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: Andreas Sandberg
import os
import sys
from style.file_types import lang_type
import style.verifiers
from style.region import all_regions
from style.style import StdioUI
from style import repo
verifier_names = dict([
(c.__name__, c) for c in style.verifiers.all_verifiers ])
def verify(filename, regions=all_regions, verbose=False, verifiers=None,
auto_fix=False):
ui = StdioUI()
opts = {
"fix_all" : auto_fix,
}
base = os.path.join(os.path.dirname(__file__), "..")
if verifiers is None:
verifiers = style.verifiers.all_verifiers
if verbose:
print "Verifying %s[%s]..." % (filename, regions)
for verifier in [ v(ui, opts, base=base) for v in verifiers ]:
if verbose:
print "Applying %s (%s)" % (
verifier.test_name, verifier.__class__.__name__)
if verifier.apply(filename, regions=regions):
return False
return True
def detect_repo():
repo_classes = repo.detect_repo()
if not repo_classes:
print >> sys.stderr, "Error: Failed to detect repository type, no " \
"known repository type found."
sys.exit(1)
elif len(repo_classes) > 1:
print >> sys.stderr, "Error: Detected multiple repository types."
sys.exit(1)
else:
return repo_classes[0]()
repo_types = {
"auto" : detect_repo,
"none" : lambda : None,
"git" : repo.GitRepo,
"hg" : repo.MercurialRepo,
}
if __name__ == '__main__':
import argparse
parser = argparse.ArgumentParser(
description="Check a file for gem5 style violations",
epilog="""If no files are specified, the style checker tries to
determine the list of modified and added files from the version
control system and checks those."""
)
parser.add_argument("--verbose", "-v", action="count",
help="Produce verbose output")
parser.add_argument("--fix", "-f", action="store_true",
help="Automatically fix style violations.")
parser.add_argument("--modifications", "-m", action="store_true",
help="""Apply the style checker to modified regions
instead of whole files""")
parser.add_argument("--repo-type", choices=repo_types, default="auto",
help="Repository type to use to detect changes")
parser.add_argument("--checker", "-c", choices=verifier_names, default=[],
action="append",
help="""Style checkers to run. Can be specified
multiple times.""")
parser.add_argument("files", metavar="FILE", nargs="*",
type=str,
help="Source file(s) to inspect")
args = parser.parse_args()
repo = repo_types[args.repo_type]()
verifiers = [ verifier_names[name] for name in args.checker ] \
if args.checker else None
files = args.files
if not files and repo:
added, modified = repo.staged_files()
files = [ repo.file_path(f) for f in added + modified ]
for filename in files:
if args.modifications and repo and repo.in_repo(filename):
regions = repo.modified_regions(filename)
else:
regions = all_regions
if not verify(filename, regions=regions,
verbose=args.verbose,
verifiers=verifiers,
auto_fix=args.fix):
sys.exit(1)