treemanifest: add an optimized __nonzero__() We use bool(manifest) in at least some places: localrepo.py:1730 hgweb/webcommands.py:524 Since the treemanifest class doesn't define __nonzero__() (before this patch), bool(manifest) will instead call __len__(), which can be slow for treemanifests. This patch may make a noticeable difference in the localrepo case above, but that only happens when committing a merge and I haven't timed it. Note that Durham already added a __nonzero__ implementation to manifestdict in b19291e5d506 (manifest: add __nonzero__ method, 2016-11-03). Differential Revision: https://phab.mercurial-scm.org/D2232

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#!/usr/bin/env python

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#

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# An example FastCGI script for use with flup, edit as necessary

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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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# 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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# Uncomment to send python tracebacks to the browser if an error occurs:

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#import cgitb; cgitb.enable()

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from mercurial import demandimport; demandimport.enable()

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from mercurial.hgweb import hgweb

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from flup.server.fcgi import WSGIServer

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application = hgweb(config)

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WSGIServer(application).run()