mirror of
https://github.com/KhronosGroup/SPIRV-Tools
synced 2024-11-23 12:10:06 +00:00
2e93e806e4
* Handles simple cases only * Identifies phis in blocks with two predecessors and attempts to convert the phi to an select * does not perform code motion currently so the converted values must dominate the join point (e.g. can't be defined in the branches) * limited for now to two predecessors, but can be extended to handle more cases * Adding if conversion to -O and -Os
223 lines
8.3 KiB
Python
Executable File
223 lines
8.3 KiB
Python
Executable File
#!/usr/bin/env python
|
|
# Copyright (c) 2016 Google Inc.
|
|
#
|
|
# Licensed under the Apache License, Version 2.0 (the "License");
|
|
# you may not use this file except in compliance with the License.
|
|
# You may obtain a copy of the License at
|
|
#
|
|
# http://www.apache.org/licenses/LICENSE-2.0
|
|
#
|
|
# Unless required by applicable law or agreed to in writing, software
|
|
# distributed under the License is distributed on an "AS IS" BASIS,
|
|
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
|
|
# See the License for the specific language governing permissions and
|
|
# limitations under the License.
|
|
"""Checks for copyright notices in all the files that need them under the
|
|
current directory. Optionally insert them. When inserting, replaces
|
|
an MIT or Khronos free use license with Apache 2.
|
|
"""
|
|
from __future__ import print_function
|
|
|
|
import argparse
|
|
import fileinput
|
|
import fnmatch
|
|
import inspect
|
|
import os
|
|
import re
|
|
import sys
|
|
|
|
# List of designated copyright owners.
|
|
AUTHORS = ['The Khronos Group Inc.',
|
|
'LunarG Inc.',
|
|
'Google Inc.',
|
|
'Google LLC',
|
|
'Pierre Moreau']
|
|
CURRENT_YEAR='2018'
|
|
|
|
YEARS = '(2014-2016|2015-2016|2016|2016-2017|2017|2018)'
|
|
COPYRIGHT_RE = re.compile(
|
|
'Copyright \(c\) {} ({})'.format(YEARS, '|'.join(AUTHORS)))
|
|
|
|
MIT_BEGIN_RE = re.compile('Permission is hereby granted, '
|
|
'free of charge, to any person obtaining a')
|
|
MIT_END_RE = re.compile('MATERIALS OR THE USE OR OTHER DEALINGS IN '
|
|
'THE MATERIALS.')
|
|
APACHE2_BEGIN_RE = re.compile('Licensed under the Apache License, '
|
|
'Version 2.0 \(the "License"\);')
|
|
APACHE2_END_RE = re.compile('limitations under the License.')
|
|
|
|
LICENSED = """Licensed under the Apache License, Version 2.0 (the "License");
|
|
you may not use this file except in compliance with the License.
|
|
You may obtain a copy of the License at
|
|
|
|
http://www.apache.org/licenses/LICENSE-2.0
|
|
|
|
Unless required by applicable law or agreed to in writing, software
|
|
distributed under the License is distributed on an "AS IS" BASIS,
|
|
WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
|
|
See the License for the specific language governing permissions and
|
|
limitations under the License."""
|
|
LICENSED_LEN = 10 # Number of lines in LICENSED
|
|
|
|
|
|
def find(top, filename_glob, skip_glob_dir_list, skip_glob_files_list):
|
|
"""Returns files in the tree rooted at top matching filename_glob but not
|
|
in directories matching skip_glob_dir_list nor files matching
|
|
skip_glob_dir_list."""
|
|
|
|
file_list = []
|
|
for path, dirs, files in os.walk(top):
|
|
for glob in skip_glob_dir_list:
|
|
for match in fnmatch.filter(dirs, glob):
|
|
dirs.remove(match)
|
|
for filename in fnmatch.filter(files, filename_glob):
|
|
full_file = os.path.join(path, filename)
|
|
if full_file not in skip_glob_files_list:
|
|
file_list.append(full_file)
|
|
return file_list
|
|
|
|
|
|
def filtered_descendants(glob):
|
|
"""Returns glob-matching filenames under the current directory, but skips
|
|
some irrelevant paths."""
|
|
return find('.', glob, ['third_party', 'external', 'CompilerIdCXX',
|
|
'build*', 'out*'], ['./utils/clang-format-diff.py'])
|
|
|
|
|
|
def skip(line):
|
|
"""Returns true if line is all whitespace or shebang."""
|
|
stripped = line.lstrip()
|
|
return stripped == '' or stripped.startswith('#!')
|
|
|
|
|
|
def comment(text, prefix):
|
|
"""Returns commented-out text.
|
|
|
|
Each line of text will be prefixed by prefix and a space character. Any
|
|
trailing whitespace will be trimmed.
|
|
"""
|
|
accum = ['{} {}'.format(prefix, line).rstrip() for line in text.split('\n')]
|
|
return '\n'.join(accum)
|
|
|
|
|
|
def insert_copyright(author, glob, comment_prefix):
|
|
"""Finds all glob-matching files under the current directory and inserts the
|
|
copyright message, and license notice. An MIT license or Khronos free
|
|
use license (modified MIT) is replaced with an Apache 2 license.
|
|
|
|
The copyright message goes into the first non-whitespace, non-shebang line
|
|
in a file. The license notice follows it. Both are prefixed on each line
|
|
by comment_prefix and a space.
|
|
"""
|
|
|
|
copyright = comment('Copyright (c) {} {}'.format(CURRENT_YEAR, author),
|
|
comment_prefix) + '\n\n'
|
|
licensed = comment(LICENSED, comment_prefix) + '\n\n'
|
|
for file in filtered_descendants(glob):
|
|
# Parsing states are:
|
|
# 0 Initial: Have not seen a copyright declaration.
|
|
# 1 Seen a copyright line and no other interesting lines
|
|
# 2 In the middle of an MIT or Khronos free use license
|
|
# 9 Exited any of the above
|
|
state = 0
|
|
update_file = False
|
|
for line in fileinput.input(file, inplace=1):
|
|
emit = True
|
|
if state is 0:
|
|
if COPYRIGHT_RE.search(line):
|
|
state = 1
|
|
elif skip(line):
|
|
pass
|
|
else:
|
|
# Didn't see a copyright. Inject copyright and license.
|
|
sys.stdout.write(copyright)
|
|
sys.stdout.write(licensed)
|
|
# Assume there isn't a previous license notice.
|
|
state = 1
|
|
elif state is 1:
|
|
if MIT_BEGIN_RE.search(line):
|
|
state = 2
|
|
emit = False
|
|
elif APACHE2_BEGIN_RE.search(line):
|
|
# Assume an Apache license is preceded by a copyright
|
|
# notice. So just emit it like the rest of the file.
|
|
state = 9
|
|
elif state is 2:
|
|
# Replace the MIT license with Apache 2
|
|
emit = False
|
|
if MIT_END_RE.search(line):
|
|
state = 9
|
|
sys.stdout.write(licensed)
|
|
if emit:
|
|
sys.stdout.write(line)
|
|
|
|
|
|
def alert_if_no_copyright(glob, comment_prefix):
|
|
"""Prints names of all files missing either a copyright or Apache 2 license.
|
|
|
|
Finds all glob-matching files under the current directory and checks if they
|
|
contain the copyright message and license notice. Prints the names of all the
|
|
files that don't meet both criteria.
|
|
|
|
Returns the total number of file names printed.
|
|
"""
|
|
printed_count = 0
|
|
for file in filtered_descendants(glob):
|
|
has_copyright = False
|
|
has_apache2 = False
|
|
line_num = 0
|
|
apache_expected_end = 0
|
|
with open(file) as contents:
|
|
for line in contents:
|
|
line_num += 1
|
|
if COPYRIGHT_RE.search(line):
|
|
has_copyright = True
|
|
if APACHE2_BEGIN_RE.search(line):
|
|
apache_expected_end = line_num + LICENSED_LEN
|
|
if (line_num is apache_expected_end) and APACHE2_END_RE.search(line):
|
|
has_apache2 = True
|
|
if not (has_copyright and has_apache2):
|
|
message = file
|
|
if not has_copyright:
|
|
message += ' has no copyright'
|
|
if not has_apache2:
|
|
message += ' has no Apache 2 license notice'
|
|
print(message)
|
|
printed_count += 1
|
|
return printed_count
|
|
|
|
|
|
class ArgParser(argparse.ArgumentParser):
|
|
def __init__(self):
|
|
super(ArgParser, self).__init__(
|
|
description=inspect.getdoc(sys.modules[__name__]))
|
|
self.add_argument('--update', dest='author', action='store',
|
|
help='For files missing a copyright notice, insert '
|
|
'one for the given author, and add a license '
|
|
'notice. The author must be in the AUTHORS '
|
|
'list in the script.')
|
|
|
|
|
|
def main():
|
|
glob_comment_pairs = [('*.h', '//'), ('*.hpp', '//'), ('*.sh', '#'),
|
|
('*.py', '#'), ('*.cpp', '//'),
|
|
('CMakeLists.txt', '#')]
|
|
argparser = ArgParser()
|
|
args = argparser.parse_args()
|
|
|
|
if args.author:
|
|
if args.author not in AUTHORS:
|
|
print('error: --update argument must be in the AUTHORS list in '
|
|
'check_copyright.py: {}'.format(AUTHORS))
|
|
sys.exit(1)
|
|
for pair in glob_comment_pairs:
|
|
insert_copyright(args.author, *pair)
|
|
sys.exit(0)
|
|
else:
|
|
count = sum([alert_if_no_copyright(*p) for p in glob_comment_pairs])
|
|
sys.exit(count > 0)
|
|
|
|
|
|
if __name__ == '__main__':
|
|
main()
|