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dirstate-v2: Move fixed-size tree metadata into the docket file
Before this changeset, the dirstate-v2 data file contained not only nodes
and paths that may be reused when appending to an existing file,
but also some fixed-size metadata that applies to the entire tree
and was added at the end of the data file for every append.
This moves that metadata into the docket file, so that repeated "append"
operations without meaningful changes don’t actually need to grow any file.
Differential Revision: https://phab.mercurial-scm.org/D11098
author | Simon Sapin <simon.sapin@octobus.net> |
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date | Thu, 15 Jul 2021 23:02:17 +0200 |
parents | c102b704edb5 |
children | 6000f5b25c9b |
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#!/usr/bin/env python3 # # docchecker - look for problematic markup # # Copyright 2016 timeless <timeless@mozdev.org> and others # # This software may be used and distributed according to the terms of the # GNU General Public License version 2 or any later version. from __future__ import absolute_import, print_function import os import re import sys try: import msvcrt msvcrt.setmode(sys.stdout.fileno(), os.O_BINARY) msvcrt.setmode(sys.stderr.fileno(), os.O_BINARY) except ImportError: pass stdout = getattr(sys.stdout, 'buffer', sys.stdout) leadingline = re.compile(br'(^\s*)(\S.*)$') checks = [ ( br""":hg:`[^`]*'[^`]*`""", b"""warning: please avoid nesting ' in :hg:`...`""", ), (br'\w:hg:`', b'warning: please have a space before :hg:'), ( br"""(?:[^a-z][^'.])hg ([^,;"`]*'(?!hg)){2}""", b'''warning: please use " instead of ' for hg ... "..."''', ), ] def check(line): messages = [] for match, msg in checks: if re.search(match, line): messages.append(msg) if messages: stdout.write(b'%s\n' % line) for msg in messages: stdout.write(b'%s\n' % msg) def work(file): (llead, lline) = (b'', b'') for line in file: # this section unwraps lines match = leadingline.match(line) if not match: check(lline) (llead, lline) = (b'', b'') continue lead, line = match.group(1), match.group(2) if lead == llead: if lline != b'': lline += b' ' + line else: lline = line else: check(lline) (llead, lline) = (lead, line) check(lline) def main(): for f in sys.argv[1:]: try: with open(f, 'rb') as file: work(file) except BaseException as e: sys.stdout.write(r"failed to process %s: %s\n" % (f, e)) main()