|
|
"""
|
|
|
This is Mercurial extension for syntax highlighting in the file
|
|
|
revision view of 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')
|
|
|
|
