encoding: add fast-path for ASCII uppercase. This copies the performance hack from encoding.lower (c481761033bd). The case-folding logic that kicks in on case-insensitive filesystems hits encoding.upper hard: with a repository with 75k files, the timings went from hg perfstatus ! wall 3.156000 comb 3.156250 user 1.625000 sys 1.531250 (best of 3) to hg perfstatus ! wall 2.390000 comb 2.390625 user 1.078125 sys 1.312500 (best of 5) This is a 24% decrease. For comparison, Mercurial 2.0 gives: hg perfstatus ! wall 2.172000 comb 2.171875 user 0.984375 sys 1.187500 (best of 5) so we're only 10% slower than before we added the extra case-folding logic. The same decrease is seen when executing 'hg status' as normal, where we go from: hg status --time time: real 4.322 secs (user 2.219+0.000 sys 2.094+0.000) to hg status --time time: real 3.307 secs (user 1.750+0.000 sys 1.547+0.000)

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−#!/usr/bin/env python
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−#
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−# An example hgweb CGI script, edit as necessary
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−# See also http://mercurial.selenic.com/wiki/PublishingRepositories
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−
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−# Path to repo or hgweb config to serve (see 'hg help hgweb')
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−config = "/path/to/repo/or/config"
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−
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−# Uncomment and adjust if Mercurial is not installed system-wide
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−# (consult "installed modules" path from 'hg debuginstall'):
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−#import sys; sys.path.insert(0, "/path/to/python/lib")
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−
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−# Uncomment to send python tracebacks to the browser if an error occurs:
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−#import cgitb; cgitb.enable()
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−
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−from mercurial import demandimport; demandimport.enable()
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−from mercurial.hgweb import hgweb, wsgicgi
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−application = hgweb(config)
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−wsgicgi.launch(application)