# highlight - syntax highlighting in hgweb, based on Pygments
#
# Copyright 2008, 2009 Patrick Mezard <pmezard@gmail.com> 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.
"""syntax highlighting for hgweb (requires Pygments)
It depends on the Pygments syntax highlighting library:
http://pygments.org/
There are two configuration options::
[web]
pygments_style = <style> (default: colorful)
highlightfiles = <fileset> (default: size('<5M'))
"""
import highlight
from mercurial.hgweb import webcommands, webutil, common
from mercurial import extensions, encoding, fileset
# Note for extension authors: ONLY specify testedwith = 'internal' for
# extensions which SHIP WITH MERCURIAL. Non-mainline extensions should
# be specifying the version(s) of Mercurial they are tested with, or
# leave the attribute unspecified.
testedwith = 'internal'
def checkfctx(fctx, expr):
ctx = fctx.changectx()
tree = fileset.parse(expr)
mctx = fileset.matchctx(ctx, subset=[fctx.path()], status=None)
return fctx.path() in fileset.getset(mctx, tree)
def filerevision_highlight(orig, web, req, tmpl, fctx):
mt = ''.join(tmpl('mimetype', encoding=encoding.encoding))
# only pygmentize for mimetype containing 'html' so we both match
# 'text/html' and possibly 'application/xhtml+xml' in the future
# so that we don't have to touch the extension when the mimetype
# for a template changes; also hgweb optimizes the case that a
# raw file is sent using rawfile() and doesn't call us, so we
# can't clash with the file's content-type here in case we
# pygmentize a html file
if 'html' in mt:
style = web.config('web', 'pygments_style', 'colorful')
expr = web.config('web', 'highlightfiles', "size('<5M')")
if checkfctx(fctx, expr):
highlight.pygmentize('fileline', fctx, style, tmpl)
return orig(web, req, tmpl, fctx)
def annotate_highlight(orig, web, req, tmpl):
mt = ''.join(tmpl('mimetype', encoding=encoding.encoding))
if 'html' in mt:
fctx = webutil.filectx(web.repo, req)
style = web.config('web', 'pygments_style', 'colorful')
expr = web.config('web', 'highlightfiles', "size('<5M')")
if checkfctx(fctx, expr):
highlight.pygmentize('annotateline', fctx, style, tmpl)
return orig(web, req, tmpl)
def generate_css(web, req, tmpl):
pg_style = web.config('web', 'pygments_style', 'colorful')
fmter = highlight.HtmlFormatter(style=pg_style)
req.respond(common.HTTP_OK, 'text/css')
return ['/* pygments_style = %s */\n\n' % pg_style,
fmter.get_style_defs('')]
def extsetup():
# monkeypatch in the new version
extensions.wrapfunction(webcommands, '_filerevision',
filerevision_highlight)
extensions.wrapfunction(webcommands, 'annotate', annotate_highlight)
webcommands.highlightcss = generate_css
webcommands.__all__.append('highlightcss')