dirstate: remove the python-side whitelist of allowed matchers
This whitelist is too permissive because it allows matchers that contain
disallowed ones deep inside, for example through `intersectionmatcher`.
It is also too restrictive because it doesn't pass through
some of the matchers we support, such as `patternmatcher`.
It's also unnecessary because unsupported matchers raise
`FallbackError` and we fall back anyway.
Making this change makes more of the tests use rust code path,
and therefore subtly change behavior. For example, rust status
in largefiles repos seems to have strange behavior.
# highlight.py - highlight extension implementation file
#
# Copyright 2007-2009 Adam Hupp <adam@hupp.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.
#
# The original module was split in an interface and an implementation
# file to defer pygments loading and speedup extension setup.
from mercurial import demandimport
demandimport.IGNORES.update(['pkgutil', 'pkg_resources', '__main__'])
from mercurial import (
encoding,
pycompat,
)
from mercurial.utils import stringutil
with demandimport.deactivated():
import pygments
import pygments.formatters
import pygments.lexers
import pygments.plugin
import pygments.util
for unused in pygments.plugin.find_plugin_lexers():
pass
highlight = pygments.highlight
ClassNotFound = pygments.util.ClassNotFound
guess_lexer = pygments.lexers.guess_lexer
guess_lexer_for_filename = pygments.lexers.guess_lexer_for_filename
TextLexer = pygments.lexers.TextLexer
HtmlFormatter = pygments.formatters.HtmlFormatter
SYNTAX_CSS = (
b'\n<link rel="stylesheet" href="{url}highlightcss" type="text/css" />'
)
def pygmentize(field, fctx, style, tmpl, guessfilenameonly=False):
# append a <link ...> to the syntax highlighting css
tmpl.load(b'header')
old_header = tmpl.cache[b'header']
if SYNTAX_CSS not in old_header:
new_header = old_header + SYNTAX_CSS
tmpl.cache[b'header'] = new_header
text = fctx.data()
if stringutil.binary(text):
return
# str.splitlines() != unicode.splitlines() because "reasons"
for c in b"\x0c", b"\x1c", b"\x1d", b"\x1e":
if c in text:
text = text.replace(c, b'')
# Pygments is best used with Unicode strings:
# <http://pygments.org/docs/unicode/>
text = text.decode(pycompat.sysstr(encoding.encoding), 'replace')
# To get multi-line strings right, we can't format line-by-line
try:
path = pycompat.sysstr(fctx.path())
lexer = guess_lexer_for_filename(path, text[:1024], stripnl=False)
except (ClassNotFound, ValueError):
# guess_lexer will return a lexer if *any* lexer matches. There is
# no way to specify a minimum match score. This can give a high rate of
# false positives on files with an unknown filename pattern.
if guessfilenameonly:
return
try:
lexer = guess_lexer(text[:1024], stripnl=False)
except (ClassNotFound, ValueError):
# Don't highlight unknown files
return
# Don't highlight text files
if isinstance(lexer, TextLexer):
return
formatter = HtmlFormatter(nowrap=True, style=pycompat.sysstr(style))
colorized = highlight(text, lexer, formatter)
coloriter = (
s.encode(pycompat.sysstr(encoding.encoding), 'replace')
for s in colorized.splitlines()
)
tmpl._filters[b'colorize'] = lambda x: next(coloriter)
oldl = tmpl.cache[field]
newl = oldl.replace(b'line|escape', b'line|colorize')
tmpl.cache[field] = newl