7315d7b3d7
There are now less that 400 days until the end of life of Python 2(aka _legacy_ Python) https://pythonclock.org/ . The code compatibility check for python2 and python3 used the following tools: futurize, flake8 You can see the reports here: https://travis-ci.com/bmsdave/v8/builds This CL was uploaded by git cl split. Bug: v8:8594 Change-Id: I661c52a70527e8ddde841fee6d4dcba282b4a938 Reviewed-on: https://chromium-review.googlesource.com/c/1470123 Commit-Queue: Sergiy Belozorov <sergiyb@chromium.org> Reviewed-by: Sergiy Belozorov <sergiyb@chromium.org> Cr-Commit-Position: refs/heads/master@{#59675}
109 lines
3.4 KiB
Python
Executable File
109 lines
3.4 KiB
Python
Executable File
#!/usr/bin/env python
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# Copyright 2018 the V8 project authors. All rights reserved.
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# Use of this source code is governed by a BSD-style license that can be
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# found in the LICENSE file.
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# for py2/py3 compatibility
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from __future__ import print_function
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import argparse
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from datetime import datetime
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import re
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import subprocess
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import sys
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RE_GITHASH = re.compile(r"^[0-9a-f]{40}")
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RE_AUTHOR_TIME = re.compile(r"^author-time (\d+)$")
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RE_FILENAME = re.compile(r"^filename (.+)$")
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def GetBlame(file_path):
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result = subprocess.check_output(
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['git', 'blame', '-t', '--line-porcelain', file_path])
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line_iter = iter(result.splitlines())
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blame_list = list()
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current_blame = None
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while True:
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line = next(line_iter, None)
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if line is None:
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break
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if RE_GITHASH.match(line):
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if current_blame is not None:
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blame_list.append(current_blame)
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current_blame = {'time': 0, 'filename': None, 'content': None}
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continue
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match = RE_AUTHOR_TIME.match(line)
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if match:
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current_blame['time'] = datetime.fromtimestamp(int(match.groups()[0]))
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continue
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match = RE_FILENAME.match(line)
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if match:
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current_blame['filename'] = match.groups()[0]
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current_blame['content'] = next(line_iter).strip()
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continue
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blame_list.append(current_blame)
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return blame_list
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RE_MACRO_END = re.compile(r"\);");
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RE_DEPRECATE_MACRO = re.compile(r"\(.*?,(.*)\);", re.MULTILINE)
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def FilterAndPrint(blame_list, macro, before):
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index = 0
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re_macro = re.compile(macro)
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deprecated = list()
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while index < len(blame_list):
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blame = blame_list[index]
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match = re_macro.search(blame['content'])
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if match and blame['time'] < before:
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line = blame['content']
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time = blame['time']
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pos = match.end()
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start = -1
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parens = 0
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quotes = 0
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while True:
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if pos >= len(line):
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# extend to next line
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index = index + 1
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blame = blame_list[index]
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if line.endswith(','):
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# add whitespace when breaking line due to comma
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line = line + ' '
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line = line + blame['content']
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if line[pos] == '(':
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parens = parens + 1
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elif line[pos] == ')':
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parens = parens - 1
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if parens == 0:
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break
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elif line[pos] == '"':
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quotes = quotes + 1
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elif line[pos] == ',' and quotes % 2 == 0 and start == -1:
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start = pos + 1
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pos = pos + 1
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deprecated.append([index + 1, time, line[start:pos].strip()])
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index = index + 1
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print("Marked as " + macro + ": " + str(len(deprecated)))
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for linenumber, time, content in deprecated:
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print(str(linenumber).rjust(8) + " : " + str(time) + " : " + content)
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return len(deprecated)
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def ParseOptions(args):
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parser = argparse.ArgumentParser(description="Collect deprecation statistics")
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parser.add_argument("file_path", help="Path to v8.h")
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parser.add_argument("--before", help="Filter by date")
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options = parser.parse_args(args)
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if options.before:
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options.before = datetime.strptime(options.before, '%Y-%m-%d')
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else:
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options.before = datetime.now()
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return options
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def Main(args):
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options = ParseOptions(args)
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blame_list = GetBlame(options.file_path)
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FilterAndPrint(blame_list, "V8_DEPRECATE_SOON", options.before)
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FilterAndPrint(blame_list, "V8_DEPRECATED", options.before)
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if __name__ == "__main__":
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Main(sys.argv[1:])
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