##// END OF EJS Templates
hgk: fix parent breakage
hgk: fix parent breakage

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highlight.py
98 lines | 3.0 KiB | text/x-python | PythonLexer
"""a mercurial extension for syntax highlighting in hgweb
It depends on the pygments syntax highlighting library:
http://pygments.org/
To enable the extension add this to hgrc:
[extensions]
hgext.highlight =
There is a single configuration option:
[web]
pygments_style = <style>
The default is 'colorful'.
-- Adam Hupp <adam@hupp.org>
"""
from mercurial import demandimport
demandimport.ignore.extend(['pkgutil', 'pkg_resources', '__main__',])
from mercurial.hgweb import webcommands, webutil, common
from mercurial import util
from mercurial.templatefilters import filters
from pygments import highlight
from pygments.util import ClassNotFound
from pygments.lexers import guess_lexer, guess_lexer_for_filename, TextLexer
from pygments.formatters import HtmlFormatter
SYNTAX_CSS = ('\n<link rel="stylesheet" href="{url}highlightcss" '
'type="text/css" />')
def pygmentize(field, fctx, style, tmpl):
# append a <link ...> to the syntax highlighting css
old_header = ''.join(tmpl('header'))
if SYNTAX_CSS not in old_header:
new_header = old_header + SYNTAX_CSS
tmpl.cache['header'] = new_header
text = fctx.data()
if util.binary(text):
return
# To get multi-line strings right, we can't format line-by-line
try:
lexer = guess_lexer_for_filename(fctx.path(), text[:1024],
encoding=util._encoding)
except (ClassNotFound, ValueError):
try:
lexer = guess_lexer(text[:1024], encoding=util._encoding)
except (ClassNotFound, ValueError):
lexer = TextLexer(encoding=util._encoding)
formatter = HtmlFormatter(style=style, encoding=util._encoding)
colorized = highlight(text, lexer, formatter)
# strip wrapping div
colorized = colorized[:colorized.find('\n</pre>')]
colorized = colorized[colorized.find('<pre>')+5:]
coloriter = iter(colorized.splitlines())
filters['colorize'] = lambda x: coloriter.next()
oldl = tmpl.cache[field]
newl = oldl.replace('line|escape', 'line|colorize')
tmpl.cache[field] = newl
web_filerevision = webcommands._filerevision
web_annotate = webcommands.annotate
def filerevision_highlight(web, tmpl, fctx):
style = web.config('web', 'pygments_style', 'colorful')
pygmentize('fileline', fctx, style, tmpl)
return web_filerevision(web, tmpl, fctx)
def annotate_highlight(web, req, tmpl):
fctx = webutil.filectx(web.repo, req)
style = web.config('web', 'pygments_style', 'colorful')
pygmentize('annotateline', fctx, style, tmpl)
return web_annotate(web, req, tmpl)
def generate_css(web, req, tmpl):
pg_style = web.config('web', 'pygments_style', 'colorful')
fmter = HtmlFormatter(style = pg_style)
req.respond(common.HTTP_OK, 'text/css')
return ['/* pygments_style = %s */\n\n' % pg_style, fmter.get_style_defs('')]
# monkeypatch in the new version
webcommands._filerevision = filerevision_highlight
webcommands.annotate = annotate_highlight
webcommands.highlightcss = generate_css
webcommands.__all__.append('highlightcss')