Mercurial > hg-stable

changeset 6938:ce94b3236ea4

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highlight: split code to improve startup times
author Patrick Mezard <pmezard@gmail.com>
date Mon, 25 Aug 2008 23:04:56 +0200
parents 3aa8ad0e03ba
children 40cacb049ef6
files hgext/highlight.py hgext/highlight/__init__.py hgext/highlight/highlight.py setup.py
diffstat 4 files changed, 106 insertions(+), 99 deletions(-) [+]
line wrap: on
line diff
--- a/hgext/highlight.py	Mon Aug 25 01:26:08 2008 +0200
+++ /dev/null	Thu Jan 01 00:00:00 1970 +0000
@@ -1,98 +0,0 @@
-"""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')
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/hgext/highlight/__init__.py	Mon Aug 25 23:04:56 2008 +0200
@@ -0,0 +1,50 @@
+"""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>
+"""
+
+import highlight
+from mercurial.hgweb import webcommands, webutil, common
+
+web_filerevision = webcommands._filerevision
+web_annotate = webcommands.annotate
+
+def filerevision_highlight(web, tmpl, fctx):
+    style = web.config('web', 'pygments_style', 'colorful')
+    highlight.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')
+    highlight.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 = highlight.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')
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/hgext/highlight/highlight.py	Mon Aug 25 23:04:56 2008 +0200
@@ -0,0 +1,54 @@
+# highlight extension implementation file
+#
+# 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.ignore.extend(['pkgutil', 'pkg_resources', '__main__',])
+
+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
--- a/setup.py	Mon Aug 25 01:26:08 2008 +0200
+++ b/setup.py	Mon Aug 25 23:04:56 2008 +0200
@@ -98,7 +98,8 @@
     Extension('mercurial.parsers', ['mercurial/parsers.c']),
     ]
 
-packages = ['mercurial', 'mercurial.hgweb', 'hgext', 'hgext.convert']
+packages = ['mercurial', 'mercurial.hgweb', 'hgext', 'hgext.convert', 
+            'hgext.highlight']
 
 try:
     import posix