Merge with crew-stable

hgext/color.py

@@ -1,219 +1,225
 # color.py color output for the status and qseries commands
 #
 # Copyright (C) 2007 Kevin Christen <[e-mail]>
 #
 # This program is free software; you can redistribute it and/or modify it
 # under the terms of the GNU General Public License as published by the
 # Free Software Foundation; either version 2 of the License, or (at your
 # option) any later version.
 #
 # This program is distributed in the hope that it will be useful, but
 # WITHOUT ANY WARRANTY; without even the implied warranty of
 # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General
 # Public License for more details.
 #
 # You should have received a copy of the GNU General Public License along
 # with this program; if not, write to the Free Software Foundation, Inc.,
 # 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
 
 '''add color output to the status and qseries commands
 
 This extension modifies the status command to add color to its output to
 reflect file status, and the qseries command to add color to reflect patch
 status (applied, unapplied, missing).  Other effects in addition to color,
 like bold and underlined text, are also available.  Effects are rendered
 with the ECMA-48 SGR control function (aka ANSI escape codes).  This module
 also provides the render_text function, which can be used to add effects to
 any text.
 
 To enable this extension, add this to your .hgrc file:
 [extensions]
 color =
 
 Default effects my be overriden from the .hgrc file:
 
 [color]
 status.modified = blue bold underline red_background
 status.added = green bold
 status.removed = red bold blue_background
 status.deleted = cyan bold underline
 status.unknown = magenta bold underline
 status.ignored = black bold
 
- 'none' turns off all effects
+# 'none' turns off all effects
 status.clean = none
 status.copied = none
 
 qseries.applied = blue bold underline
 qseries.unapplied = black bold
 qseries.missing = red bold
 '''
 
 import re, sys
 
 from mercurial import commands, cmdutil
 from mercurial.i18n import _
 
 # start and stop parameters for effects
 _effect_params = { 'none': (0, 0),
                    'black': (30, 39),
                    'red': (31, 39),
                    'green': (32, 39),
                    'yellow': (33, 39),
                    'blue': (34, 39),
                    'magenta': (35, 39),
                    'cyan': (36, 39),
                    'white': (37, 39),
                    'bold': (1, 22),
                    'italic': (3, 23),
                    'underline': (4, 24),
                    'inverse': (7, 27),
                    'black_background': (40, 49),
                    'red_background': (41, 49),
                    'green_background': (42, 49),
                    'yellow_background': (43, 49),
                    'blue_background': (44, 49),
                    'purple_background': (45, 49),
                    'cyan_background': (46, 49),
                    'white_background': (47, 49), }
 
 def render_effects(text, *effects):
     'Wrap text in commands to turn on each effect.'
-    start = []
+    start = [ str(_effect_params['none'][0]) ]
     stop = []
     for effect in effects:
         start.append(str(_effect_params[effect][0]))
         stop.append(str(_effect_params[effect][1]))
+    stop.append(str(_effect_params['none'][1]))
     start = '\033[' + ';'.join(start) + 'm'
     stop = '\033[' + ';'.join(stop) + 'm'
     return start + text + stop
 
 def colorstatus(statusfunc, ui, repo, *pats, **opts):
     '''run the status command with colored output'''
 
     delimiter = opts['print0'] and '\0' or '\n'
 
     # run status and capture it's output
     ui.pushbuffer()
     retval = statusfunc(ui, repo, *pats, **opts)
     # filter out empty strings
     lines = [ line for line in ui.popbuffer().split(delimiter) if line ]
 
     if opts['no_status']:
         # if --no-status, run the command again without that option to get
         # output with status abbreviations
         opts['no_status'] = False
         ui.pushbuffer()
         statusfunc(ui, repo, *pats, **opts)
         # filter out empty strings
         lines_with_status = [ line for
                               line in ui.popbuffer().split(delimiter) if line ]
     else:
         lines_with_status = lines
 
     # apply color to output and display it
     for i in xrange(0, len(lines)):
         status = _status_abbreviations[lines_with_status[i][0]]
         effects = _status_effects[status]
         if effects:
             lines[i] = render_effects(lines[i], *effects)
         sys.stdout.write(lines[i] + delimiter)
     return retval
 
 _status_abbreviations = { 'M': 'modified',
                           'A': 'added',
                           'R': 'removed',
                           '!': 'deleted',
                           '?': 'unknown',
                           'I': 'ignored',
                           'C': 'clean',
                           ' ': 'copied', }
 
 _status_effects = { 'modified': ('blue', 'bold'),
                     'added': ('green', 'bold'),
                     'removed': ('red', 'bold'),
                     'deleted': ('cyan', 'bold', 'underline'),
                     'unknown': ('magenta', 'bold', 'underline'),
                     'ignored': ('black', 'bold'),
                     'clean': ('none', ),
                     'copied': ('none', ), }
 
 def colorqseries(qseriesfunc, ui, repo, *dummy, **opts):
     '''run the qseries command with colored output'''
     ui.pushbuffer()
     retval = qseriesfunc(ui, repo, **opts)
     patches = ui.popbuffer().splitlines()
     for patch in patches:
+        patchname = patch
+        if opts['summary']:
+            patchname = patchname.split(': ')[0]
+        if ui.verbose:
+            patchname = patchname.split(' ', 2)[-1]
+
         if opts['missing']:
             effects = _patch_effects['missing']
-        # Determine if patch is applied.  Search for beginning of output
-        # line in the applied patch list, in case --summary has been used
-        # and output line isn't just the patch name.
+        # Determine if patch is applied.
         elif [ applied for applied in repo.mq.applied
-               if patch.startswith(applied.name) ]:
+               if patchname == applied.name ]:
             effects = _patch_effects['applied']
         else:
             effects = _patch_effects['unapplied']
         sys.stdout.write(render_effects(patch, *effects) + '\n')
     return retval
 
 _patch_effects = { 'applied': ('blue', 'bold', 'underline'),
                    'missing': ('red', 'bold'),
                    'unapplied': ('black', 'bold'), }
 
 def uisetup(ui):
     '''Initialize the extension.'''
     nocoloropt = ('', 'no-color', None, _("don't colorize output"))
     _decoratecmd(ui, 'status', commands.table, colorstatus, nocoloropt)
     _configcmdeffects(ui, 'status', _status_effects);
-    if ui.config('extensions', 'hgext.mq', default=None) is not None:
+    if ui.config('extensions', 'hgext.mq') is not None or \
+            ui.config('extensions', 'mq') is not None:
         from hgext import mq
         _decoratecmd(ui, 'qseries', mq.cmdtable, colorqseries, nocoloropt)
         _configcmdeffects(ui, 'qseries', _patch_effects);
 
 def _decoratecmd(ui, cmd, table, delegate, *delegateoptions):
     '''Replace the function that implements cmd in table with a decorator.
 
     The decorator that becomes the new implementation of cmd calls
     delegate.  The delegate's first argument is the replaced function,
     followed by the normal Mercurial command arguments (ui, repo, ...).  If
     the delegate adds command options, supply them as delegateoptions.
     '''
     cmdkey, cmdentry = _cmdtableitem(ui, cmd, table)
     decorator = lambda ui, repo, *args, **opts: \
                     _colordecorator(delegate, cmdentry[0],
                                     ui, repo, *args, **opts)
     # make sure 'hg help cmd' still works
     decorator.__doc__ = cmdentry[0].__doc__
     decoratorentry = (decorator,) + cmdentry[1:]
     for option in delegateoptions:
         decoratorentry[1].append(option)
     table[cmdkey] = decoratorentry
 
 def _cmdtableitem(ui, cmd, table):
     '''Return key, value from table for cmd, or None if not found.'''
     aliases, entry = cmdutil.findcmd(ui, cmd, table)
     for candidatekey, candidateentry in table.iteritems():
         if candidateentry is entry:
             return candidatekey, entry
 
 def _colordecorator(colorfunc, nocolorfunc, ui, repo, *args, **opts):
     '''Delegate to colorfunc or nocolorfunc, depending on conditions.
 
     Delegate to colorfunc unless --no-color option is set or output is not
     to a tty.
     '''
     if opts['no_color'] or not sys.stdout.isatty():
         return nocolorfunc(ui, repo, *args, **opts)
     return colorfunc(nocolorfunc, ui, repo, *args, **opts)
 
 def _configcmdeffects(ui, cmdname, effectsmap):
     '''Override default effects for cmdname with those from .hgrc file.
 
     Entries in the .hgrc file are in the [color] section, and look like
     'cmdname'.'status' (for instance, 'status.modified = blue bold inverse').
     '''
     for status in effectsmap:
         effects = ui.config('color', cmdname + '.' + status)
         if effects:
             effectsmap[status] = re.split('\W+', effects)

mercurial/hgweb/webcommands.py

@@ -1,606 +1,605
 #
 # Copyright 21 May 2005 - (c) 2005 Jake Edge <[e-mail]>
 # Copyright 2005-2007 Matt Mackall <[e-mail]>
 #
 # This software may be used and distributed according to the terms
 # of the GNU General Public License, incorporated herein by reference.
 
 import os, mimetypes, re, cgi
 import webutil
 from mercurial import revlog, archival, templatefilters
 from mercurial.node import short, hex, nullid
 from mercurial.util import binary, datestr
 from mercurial.repo import RepoError
 from common import paritygen, staticfile, get_contact, ErrorResponse
 from common import HTTP_OK, HTTP_NOT_FOUND
 from mercurial import graphmod, util
 
 # __all__ is populated with the allowed commands. Be sure to add to it if
 # you're adding a new command, or the new command won't work.
 
 __all__ = [
    'log', 'rawfile', 'file', 'changelog', 'shortlog', 'changeset', 'rev',
    'manifest', 'tags', 'summary', 'filediff', 'diff', 'annotate', 'filelog',
    'archive', 'static', 'graph',
 ]
 
 def log(web, req, tmpl):
     if 'file' in req.form and req.form['file'][0]:
         return filelog(web, req, tmpl)
     else:
         return changelog(web, req, tmpl)
 
 def rawfile(web, req, tmpl):
     path = webutil.cleanpath(web.repo, req.form.get('file', [''])[0])
     if not path:
         content = manifest(web, req, tmpl)
         req.respond(HTTP_OK, web.ctype)
         return content
 
     try:
         fctx = webutil.filectx(web.repo, req)
     except revlog.LookupError, inst:
         try:
             content = manifest(web, req, tmpl)
             req.respond(HTTP_OK, web.ctype)
             return content
         except ErrorResponse:
             raise inst
 
     path = fctx.path()
     text = fctx.data()
     mt = mimetypes.guess_type(path)[0]
     if mt is None or binary(text):
         mt = mt or 'application/octet-stream'
 
     req.respond(HTTP_OK, mt, path, len(text))
     return [text]
 
 def _filerevision(web, tmpl, fctx):
     f = fctx.path()
     text = fctx.data()
     fl = fctx.filelog()
     n = fctx.filenode()
     parity = paritygen(web.stripecount)
 
     if binary(text):
         mt = mimetypes.guess_type(f)[0] or 'application/octet-stream'
         text = '(binary:%s)' % mt
 
     def lines():
         for lineno, t in enumerate(text.splitlines(1)):
             yield {"line": t,
                    "lineid": "l%d" % (lineno + 1),
                    "linenumber": "% 6d" % (lineno + 1),
                    "parity": parity.next()}
 
     return tmpl("filerevision",
                 file=f,
                 path=webutil.up(f),
                 text=lines(),
                 rev=fctx.rev(),
                 node=hex(fctx.node()),
                 author=fctx.user(),
                 date=fctx.date(),
                 desc=fctx.description(),
                 branch=webutil.nodebranchnodefault(fctx),
                 parent=webutil.siblings(fctx.parents()),
                 child=webutil.siblings(fctx.children()),
                 rename=webutil.renamelink(fctx),
                 permissions=fctx.manifest().flags(f))
 
 def file(web, req, tmpl):
     path = webutil.cleanpath(web.repo, req.form.get('file', [''])[0])
-    if path:
+    if not path:
+        return manifest(web, req, tmpl)
+    try:
+        return _filerevision(web, tmpl, webutil.filectx(web.repo, req))
+    except revlog.LookupError, inst:
         try:
-            return _filerevision(web, tmpl, webutil.filectx(web.repo, req))
-        except revlog.LookupError, inst:
-            pass
-
-    try:
-        return manifest(web, req, tmpl)
-    except ErrorResponse:
-        raise inst
+            return manifest(web, req, tmpl)
+        except ErrorResponse:
+            raise inst
 
 def _search(web, tmpl, query):
 
     def changelist(**map):
         cl = web.repo.changelog
         count = 0
         qw = query.lower().split()
 
         def revgen():
             for i in xrange(len(cl) - 1, 0, -100):
                 l = []
                 for j in xrange(max(0, i - 100), i + 1):
                     ctx = web.repo[j]
                     l.append(ctx)
                 l.reverse()
                 for e in l:
                     yield e
 
         for ctx in revgen():
             miss = 0
             for q in qw:
                 if not (q in ctx.user().lower() or
                         q in ctx.description().lower() or
                         q in " ".join(ctx.files()).lower()):
                     miss = 1
                     break
             if miss:
                 continue
 
             count += 1
             n = ctx.node()
             showtags = webutil.showtag(web.repo, tmpl, 'changelogtag', n)
 
             yield tmpl('searchentry',
                        parity=parity.next(),
                        author=ctx.user(),
                        parent=webutil.siblings(ctx.parents()),
                        child=webutil.siblings(ctx.children()),
                        changelogtag=showtags,
                        desc=ctx.description(),
                        date=ctx.date(),
                        files=web.listfilediffs(tmpl, ctx.files(), n),
                        rev=ctx.rev(),
                        node=hex(n),
                        tags=webutil.nodetagsdict(web.repo, n),
                        inbranch=webutil.nodeinbranch(web.repo, ctx),
                        branches=webutil.nodebranchdict(web.repo, ctx))
 
             if count >= web.maxchanges:
                 break
 
     cl = web.repo.changelog
     parity = paritygen(web.stripecount)
 
     return tmpl('search',
                 query=query,
                 node=hex(cl.tip()),
                 entries=changelist,
                 archives=web.archivelist("tip"))
 
 def changelog(web, req, tmpl, shortlog = False):
     if 'node' in req.form:
         ctx = webutil.changectx(web.repo, req)
     else:
         if 'rev' in req.form:
             hi = req.form['rev'][0]
         else:
             hi = len(web.repo) - 1
         try:
             ctx = web.repo[hi]
         except RepoError:
             return _search(web, tmpl, hi) # XXX redirect to 404 page?
 
     def changelist(limit=0, **map):
         cl = web.repo.changelog
         l = [] # build a list in forward order for efficiency
         for i in xrange(start, end):
             ctx = web.repo[i]
             n = ctx.node()
             showtags = webutil.showtag(web.repo, tmpl, 'changelogtag', n)
 
             l.insert(0, {"parity": parity.next(),
                          "author": ctx.user(),
                          "parent": webutil.siblings(ctx.parents(), i - 1),
                          "child": webutil.siblings(ctx.children(), i + 1),
                          "changelogtag": showtags,
                          "desc": ctx.description(),
                          "date": ctx.date(),
                          "files": web.listfilediffs(tmpl, ctx.files(), n),
                          "rev": i,
                          "node": hex(n),
                          "tags": webutil.nodetagsdict(web.repo, n),
                          "inbranch": webutil.nodeinbranch(web.repo, ctx),
                          "branches": webutil.nodebranchdict(web.repo, ctx)
                         })
 
         if limit > 0:
             l = l[:limit]
 
         for e in l:
             yield e
 
     maxchanges = shortlog and web.maxshortchanges or web.maxchanges
     cl = web.repo.changelog
     count = len(cl)
     pos = ctx.rev()
     start = max(0, pos - maxchanges + 1)
     end = min(count, start + maxchanges)
     pos = end - 1
     parity = paritygen(web.stripecount, offset=start-end)
 
     changenav = webutil.revnavgen(pos, maxchanges, count, web.repo.changectx)
 
     return tmpl(shortlog and 'shortlog' or 'changelog',
                 changenav=changenav,
                 node=hex(ctx.node()),
                 rev=pos, changesets=count,
                 entries=lambda **x: changelist(limit=0,**x),
                 latestentry=lambda **x: changelist(limit=1,**x),
                 archives=web.archivelist("tip"))
 
 def shortlog(web, req, tmpl):
     return changelog(web, req, tmpl, shortlog = True)
 
 def changeset(web, req, tmpl):
     ctx = webutil.changectx(web.repo, req)
     n = ctx.node()
     showtags = webutil.showtag(web.repo, tmpl, 'changesettag', n)
     parents = ctx.parents()
     p1 = parents[0].node()
 
     files = []
     parity = paritygen(web.stripecount)
     for f in ctx.files():
         files.append(tmpl("filenodelink",
                           node=hex(n), file=f,
                           parity=parity.next()))
 
     diffs = web.diff(tmpl, p1, n, None)
     return tmpl('changeset',
                 diff=diffs,
                 rev=ctx.rev(),
                 node=hex(n),
                 parent=webutil.siblings(parents),
                 child=webutil.siblings(ctx.children()),
                 changesettag=showtags,
                 author=ctx.user(),
                 desc=ctx.description(),
                 date=ctx.date(),
                 files=files,
                 archives=web.archivelist(hex(n)),
                 tags=webutil.nodetagsdict(web.repo, n),
                 branch=webutil.nodebranchnodefault(ctx),
                 inbranch=webutil.nodeinbranch(web.repo, ctx),
                 branches=webutil.nodebranchdict(web.repo, ctx))
 
 rev = changeset
 
 def manifest(web, req, tmpl):
     ctx = webutil.changectx(web.repo, req)
     path = webutil.cleanpath(web.repo, req.form.get('file', [''])[0])
     mf = ctx.manifest()
     node = ctx.node()
 
     files = {}
     parity = paritygen(web.stripecount)
 
     if path and path[-1] != "/":
         path += "/"
     l = len(path)
     abspath = "/" + path
 
     for f, n in mf.items():
         if f[:l] != path:
             continue
         remain = f[l:]
         if "/" in remain:
             short = remain[:remain.index("/") + 1] # bleah
             files[short] = (f, None)
         else:
             short = os.path.basename(remain)
             files[short] = (f, n)
 
     if not files:
         raise ErrorResponse(HTTP_NOT_FOUND, 'path not found: ' + path)
 
     def filelist(**map):
         for f in util.sort(files):
             full, fnode = files[f]
             if not fnode:
                 continue
 
             fctx = ctx.filectx(full)
             yield {"file": full,
                    "parity": parity.next(),
                    "basename": f,
                    "date": fctx.date(),
                    "size": fctx.size(),
                    "permissions": mf.flags(full)}
 
     def dirlist(**map):
         for f in util.sort(files):
             full, fnode = files[f]
             if fnode:
                 continue
 
             yield {"parity": parity.next(),
                    "path": "%s%s" % (abspath, f),
                    "basename": f[:-1]}
 
     return tmpl("manifest",
                 rev=ctx.rev(),
                 node=hex(node),
                 path=abspath,
                 up=webutil.up(abspath),
                 upparity=parity.next(),
                 fentries=filelist,
                 dentries=dirlist,
                 archives=web.archivelist(hex(node)),
                 tags=webutil.nodetagsdict(web.repo, node),
                 inbranch=webutil.nodeinbranch(web.repo, ctx),
                 branches=webutil.nodebranchdict(web.repo, ctx))
 
 def tags(web, req, tmpl):
     i = web.repo.tagslist()
     i.reverse()
     parity = paritygen(web.stripecount)
 
     def entries(notip=False,limit=0, **map):
         count = 0
         for k, n in i:
             if notip and k == "tip":
                 continue
             if limit > 0 and count >= limit:
                 continue
             count = count + 1
             yield {"parity": parity.next(),
                    "tag": k,
                    "date": web.repo[n].date(),
                    "node": hex(n)}
 
     return tmpl("tags",
                 node=hex(web.repo.changelog.tip()),
                 entries=lambda **x: entries(False,0, **x),
                 entriesnotip=lambda **x: entries(True,0, **x),
                 latestentry=lambda **x: entries(True,1, **x))
 
 def summary(web, req, tmpl):
     i = web.repo.tagslist()
     i.reverse()
 
     def tagentries(**map):
         parity = paritygen(web.stripecount)
         count = 0
         for k, n in i:
             if k == "tip": # skip tip
                 continue
 
             count += 1
             if count > 10: # limit to 10 tags
                 break
 
             yield tmpl("tagentry",
                        parity=parity.next(),
                        tag=k,
                        node=hex(n),
                        date=web.repo[n].date())
 
     def branches(**map):
         parity = paritygen(web.stripecount)
 
         b = web.repo.branchtags()
         l = [(-web.repo.changelog.rev(n), n, t) for t, n in b.items()]
         for r,n,t in util.sort(l):
             yield {'parity': parity.next(),
                    'branch': t,
                    'node': hex(n),
                    'date': web.repo[n].date()}
 
     def changelist(**map):
         parity = paritygen(web.stripecount, offset=start-end)
         l = [] # build a list in forward order for efficiency
         for i in xrange(start, end):
             ctx = web.repo[i]
             n = ctx.node()
             hn = hex(n)
 
             l.insert(0, tmpl(
                'shortlogentry',
                 parity=parity.next(),
                 author=ctx.user(),
                 desc=ctx.description(),
                 date=ctx.date(),
                 rev=i,
                 node=hn,
                 tags=webutil.nodetagsdict(web.repo, n),
                 inbranch=webutil.nodeinbranch(web.repo, ctx),
                 branches=webutil.nodebranchdict(web.repo, ctx)))
 
         yield l
 
     cl = web.repo.changelog
     count = len(cl)
     start = max(0, count - web.maxchanges)
     end = min(count, start + web.maxchanges)
 
     return tmpl("summary",
                 desc=web.config("web", "description", "unknown"),
                 owner=get_contact(web.config) or "unknown",
                 lastchange=cl.read(cl.tip())[2],
                 tags=tagentries,
                 branches=branches,
                 shortlog=changelist,
                 node=hex(cl.tip()),
                 archives=web.archivelist("tip"))
 
 def filediff(web, req, tmpl):
     fctx = webutil.filectx(web.repo, req)
     n = fctx.node()
     path = fctx.path()
     parents = fctx.parents()
     p1 = parents and parents[0].node() or nullid
 
     diffs = web.diff(tmpl, p1, n, [path])
     return tmpl("filediff",
                 file=path,
                 node=hex(n),
                 rev=fctx.rev(),
                 date=fctx.date(),
                 desc=fctx.description(),
                 author=fctx.user(),
                 rename=webutil.renamelink(fctx),
                 branch=webutil.nodebranchnodefault(fctx),
                 parent=webutil.siblings(parents),
                 child=webutil.siblings(fctx.children()),
                 diff=diffs)
 
 diff = filediff
 
 def annotate(web, req, tmpl):
     fctx = webutil.filectx(web.repo, req)
     f = fctx.path()
     n = fctx.filenode()
     fl = fctx.filelog()
     parity = paritygen(web.stripecount)
 
     def annotate(**map):
         last = None
         if binary(fctx.data()):
             mt = (mimetypes.guess_type(fctx.path())[0]
                   or 'application/octet-stream')
             lines = enumerate([((fctx.filectx(fctx.filerev()), 1),
                                 '(binary:%s)' % mt)])
         else:
             lines = enumerate(fctx.annotate(follow=True, linenumber=True))
         for lineno, ((f, targetline), l) in lines:
             fnode = f.filenode()
 
             if last != fnode:
                 last = fnode
 
             yield {"parity": parity.next(),
                    "node": hex(f.node()),
                    "rev": f.rev(),
                    "author": f.user(),
                    "desc": f.description(),
                    "file": f.path(),
                    "targetline": targetline,
                    "line": l,
                    "lineid": "l%d" % (lineno + 1),
                    "linenumber": "% 6d" % (lineno + 1)}
 
     return tmpl("fileannotate",
                 file=f,
                 annotate=annotate,
                 path=webutil.up(f),
                 rev=fctx.rev(),
                 node=hex(fctx.node()),
                 author=fctx.user(),
                 date=fctx.date(),
                 desc=fctx.description(),
                 rename=webutil.renamelink(fctx),
                 branch=webutil.nodebranchnodefault(fctx),
                 parent=webutil.siblings(fctx.parents()),
                 child=webutil.siblings(fctx.children()),
                 permissions=fctx.manifest().flags(f))
 
 def filelog(web, req, tmpl):
     fctx = webutil.filectx(web.repo, req)
     f = fctx.path()
     fl = fctx.filelog()
     count = len(fl)
     pagelen = web.maxshortchanges
     pos = fctx.filerev()
     start = max(0, pos - pagelen + 1)
     end = min(count, start + pagelen)
     pos = end - 1
     parity = paritygen(web.stripecount, offset=start-end)
 
     def entries(limit=0, **map):
         l = []
 
         for i in xrange(start, end):
             ctx = fctx.filectx(i)
             n = fl.node(i)
 
             l.insert(0, {"parity": parity.next(),
                          "filerev": i,
                          "file": f,
                          "node": hex(ctx.node()),
                          "author": ctx.user(),
                          "date": ctx.date(),
                          "rename": webutil.renamelink(fctx),
                          "parent": webutil.siblings(fctx.parents()),
                          "child": webutil.siblings(fctx.children()),
                          "desc": ctx.description()})
 
         if limit > 0:
             l = l[:limit]
 
         for e in l:
             yield e
 
     nodefunc = lambda x: fctx.filectx(fileid=x)
     nav = webutil.revnavgen(pos, pagelen, count, nodefunc)
     return tmpl("filelog", file=f, node=hex(fctx.node()), nav=nav,
                 entries=lambda **x: entries(limit=0, **x),
                 latestentry=lambda **x: entries(limit=1, **x))
 
 
 def archive(web, req, tmpl):
     type_ = req.form.get('type', [None])[0]
     allowed = web.configlist("web", "allow_archive")
     key = req.form['node'][0]
 
     if not (type_ in web.archives and (type_ in allowed or
         web.configbool("web", "allow" + type_, False))):
         msg = 'Unsupported archive type: %s' % type_
         raise ErrorResponse(HTTP_NOT_FOUND, msg)
 
     reponame = re.sub(r"\W+", "-", os.path.basename(web.reponame))
     cnode = web.repo.lookup(key)
     arch_version = key
     if cnode == key or key == 'tip':
         arch_version = short(cnode)
     name = "%s-%s" % (reponame, arch_version)
     mimetype, artype, extension, encoding = web.archive_specs[type_]
     headers = [
         ('Content-Type', mimetype),
         ('Content-Disposition', 'attachment; filename=%s%s' % (name, extension))
     ]
     if encoding:
         headers.append(('Content-Encoding', encoding))
     req.header(headers)
     req.respond(HTTP_OK)
     archival.archive(web.repo, req, cnode, artype, prefix=name)
     return []
 
 
 def static(web, req, tmpl):
     fname = req.form['file'][0]
     # a repo owner may set web.static in .hg/hgrc to get any file
     # readable by the user running the CGI script
     static = web.config("web", "static",
                         os.path.join(web.templatepath, "static"),
                         untrusted=False)
     return [staticfile(static, fname, req)]
 
 def graph(web, req, tmpl):
     rev = webutil.changectx(web.repo, req).rev()
     bg_height = 39
 
     max_rev = len(web.repo) - 1
     revcount = min(max_rev, int(req.form.get('revcount', [25])[0]))
     revnode = web.repo.changelog.node(rev)
     revnode_hex = hex(revnode)
     uprev = min(max_rev, rev + revcount)
     downrev = max(0, rev - revcount)
     lessrev = max(0, rev - revcount / 2)
 
     maxchanges = web.maxshortchanges or web.maxchanges
     count = len(web.repo)
     changenav = webutil.revnavgen(rev, maxchanges, count, web.repo.changectx)
 
     tree = list(graphmod.graph(web.repo, rev, rev - revcount))
     canvasheight = (len(tree) + 1) * bg_height - 27;
 
     data = []
     for i, (ctx, vtx, edges) in enumerate(tree):
         node = short(ctx.node())
         age = templatefilters.age(ctx.date())
         desc = templatefilters.firstline(ctx.description())
         desc = cgi.escape(desc)
         user = cgi.escape(templatefilters.person(ctx.user()))
         branch = ctx.branch()
         branch = branch, web.repo.branchtags().get(branch) == ctx.node()
         data.append((node, vtx, edges, desc, user, age, branch, ctx.tags()))
 
     return tmpl('graph', rev=rev, revcount=revcount, uprev=uprev,
                 lessrev=lessrev, revcountmore=revcount and 2 * revcount or 1,
                 revcountless=revcount / 2, downrev=downrev,
                 canvasheight=canvasheight, bg_height=bg_height,
                 jsdata=data, node=revnode_hex, changenav=changenav)