Mercurial > hg
view hgext/highlight/highlight.py @ 46472:98e39f04d60e
upgrade: implement partial upgrade for upgrading persistent-nodemap
Upgrading repositories to use persistent nodemap should be fast and easy as it
requires only two things:
1) Updating the requirements
2) Writing a persistent-nodemap on disk
For both of the steps above, we don't need to edit existing revlogs.
This patch makes upgrade only do the above mentioned two steps if we are
only upgarding to use persistent-nodemap feature.
Since `nodemap.persist_nodemap()` assumes that there exists a nodemap file for
the given revlog if we are trying to call it, this patch adds `force` argument
to create a file if does not exist which is true in our upgrade case.
The test changes demonstrate that we no longer write nodemap files for manifest
after upgrade which I think is desirable.
Differential Revision: https://phab.mercurial-scm.org/D9936
author | Pulkit Goyal <7895pulkit@gmail.com> |
---|---|
date | Mon, 01 Feb 2021 00:02:00 +0530 |
parents | 856cce0c255c |
children | 6000f5b25c9b |
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# 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 __future__ import absolute_import from mercurial import demandimport demandimport.IGNORES.update([b'pkgutil', b'pkg_resources', b'__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