##// END OF EJS Templates
copies: move from a copy on branchpoint to a copy on write approach...
copies: move from a copy on branchpoint to a copy on write approach Before this changes, any branch points results in a copy of the dictionary containing the copy information. This can be very costly for branchy history with few rename information. Instead, we take a "copy on write" approach. Copying the input data only when we are about to update them. In practice we where already doing the copying in half of these case (because `_chain` makes a copy), so we don't add a significant cost here even in the linear case. However the speed up in branchy case is very significant. Here are some timing on the pypy repository. revision: large amount; added files: large amount; rename small amount; c3b14617fbd7 9ba6ab77fd29 before: ! wall 1.399863 comb 1.400000 user 1.370000 sys 0.030000 (median of 10) after: ! wall 0.766453 comb 0.770000 user 0.750000 sys 0.020000 (median of 11) revision: large amount; added files: small amount; rename small amount; c3b14617fbd7 f650a9b140d2 before: ! wall 1.876748 comb 1.890000 user 1.870000 sys 0.020000 (median of 10) after: ! wall 1.167223 comb 1.170000 user 1.150000 sys 0.020000 (median of 10) revision: large amount; added files: large amount; rename large amount; 08ea3258278e d9fa043f30c0 before: ! wall 0.242457 comb 0.240000 user 0.240000 sys 0.000000 (median of 39) after: ! wall 0.211476 comb 0.210000 user 0.210000 sys 0.000000 (median of 45) revision: small amount; added files: large amount; rename large amount; df6f7a526b60 a83dc6a2d56f before: ! wall 0.013193 comb 0.020000 user 0.020000 sys 0.000000 (median of 224) after: ! wall 0.013290 comb 0.010000 user 0.010000 sys 0.000000 (median of 222) revision: small amount; added files: large amount; rename small amount; 4aa4e1f8e19a 169138063d63 before: ! wall 0.001673 comb 0.000000 user 0.000000 sys 0.000000 (median of 1000) after: ! wall 0.001677 comb 0.000000 user 0.000000 sys 0.000000 (median of 1000) revision: small amount; added files: small amount; rename small amount; 4bc173b045a6 964879152e2e before: ! wall 0.000119 comb 0.000000 user 0.000000 sys 0.000000 (median of 8023) after: ! wall 0.000119 comb 0.000000 user 0.000000 sys 0.000000 (median of 7997) revision: medium amount; added files: large amount; rename medium amount; c95f1ced15f2 2c68e87c3efe before: ! wall 0.201898 comb 0.210000 user 0.200000 sys 0.010000 (median of 48) after: ! wall 0.167415 comb 0.170000 user 0.160000 sys 0.010000 (median of 58) revision: medium amount; added files: medium amount; rename small amount; d343da0c55a8 d7746d32bf9d before: ! wall 0.036820 comb 0.040000 user 0.040000 sys 0.000000 (median of 100) after: ! wall 0.035797 comb 0.040000 user 0.040000 sys 0.000000 (median of 100) The extra cost in the linear case can be reclaimed later with some extra logic. Differential Revision: https://phab.mercurial-scm.org/D7124

File last commit:

r43346:2372284d default
r43594:ffd04bc9 default
Show More
hgwebdir_wsgi.py
140 lines | 4.8 KiB | text/x-python | PythonLexer
# An example WSGI script for IIS/isapi-wsgi to export multiple hgweb repos
# Copyright 2010-2016 Sune Foldager <cyano@me.com>
#
# This software may be used and distributed according to the terms of the
# GNU General Public License version 2 or any later version.
#
# Requirements:
# - Python 2.7, preferably 64 bit
# - Mercurial installed from source (python setup.py install) or download the
# python module installer from https://www.mercurial-scm.org/wiki/Download
# - IIS 7 or newer
#
#
# Installation and use:
#
# - Download or clone the isapi-wsgi source and run python setup.py install.
# https://github.com/hexdump42/isapi-wsgi
#
# - Create a directory to hold the shim dll, config files etc. This can reside
# inside the standard IIS directory, C:\inetpub, or anywhere else. Copy this
# script there.
#
# - Run this script (i.e. python hgwebdir_wsgi.py) to get a shim dll. The
# shim is identical for all scripts, so you can just copy and rename one
# from an earlier run, if you wish. The shim needs to reside in the same
# directory as this script.
#
# - Start IIS manager and create a new app pool:
# .NET CLR Version: No Managed Code
# Advanced Settings: Enable 32 Bit Applications, if using 32 bit Python.
# You can adjust the identity and maximum worker processes if you wish. This
# setup works fine with multiple worker processes.
#
# - Create an IIS application where your hgwebdir is to be served from.
# Assign it the app pool you just created and point its physical path to the
# directory you created.
#
# - In the application, remove all handler mappings and setup a wildcard script
# handler mapping of type IsapiModule with the shim dll as its executable.
# This file MUST reside in the same directory as the shim. The easiest way
# to do all this is to close IIS manager, place a web.config file in your
# directory and start IIS manager again. The file should contain:
#
# <?xml version="1.0" encoding="UTF-8"?>
# <configuration>
# <system.webServer>
# <handlers accessPolicy="Read, Script">
# <clear />
# <add name="hgwebdir" path="*" verb="*" modules="IsapiModule"
# scriptProcessor="C:\your\directory\_hgwebdir_wsgi.dll"
# resourceType="Unspecified" requireAccess="None"
# preCondition="bitness64" />
# </handlers>
# </system.webServer>
# </configuration>
#
# Where "bitness64" should be replaced with "bitness32" for 32 bit Python.
#
# - Edit ISAPI And CGI Restrictions on the web server (global setting). Add a
# restriction pointing to your shim dll and allow it to run.
#
# - Create a configuration file in your directory and adjust the configuration
# variables below to match your needs. Example configuration:
#
# [web]
# style = gitweb
# push_ssl = false
# allow_push = *
# encoding = utf8
#
# [server]
# validate = true
#
# [paths]
# repo1 = c:\your\directory\repo1
# repo2 = c:\your\directory\repo2
#
# - Restart the web server and see if things are running.
#
from __future__ import absolute_import
# Configuration file location
hgweb_config = r'c:\your\directory\wsgi.config'
# Global settings for IIS path translation
path_strip = 0 # Strip this many path elements off (when using url rewrite)
path_prefix = 1 # This many path elements are prefixes (depends on the
# virtual path of the IIS application).
import sys
# Adjust python path if this is not a system-wide install
# sys.path.insert(0, r'C:\your\custom\hg\build\lib.win32-2.7')
# Enable tracing. Run 'python -m win32traceutil' to debug
if getattr(sys, 'isapidllhandle', None) is not None:
import win32traceutil
win32traceutil.SetupForPrint # silence unused import warning
import isapi_wsgi
from mercurial.hgweb.hgwebdir_mod import hgwebdir
# Example tweak: Replace isapi_wsgi's handler to provide better error message
# Other stuff could also be done here, like logging errors etc.
class WsgiHandler(isapi_wsgi.IsapiWsgiHandler):
error_status = '500 Internal Server Error' # less silly error message
isapi_wsgi.IsapiWsgiHandler = WsgiHandler
# Only create the hgwebdir instance once
application = hgwebdir(hgweb_config)
def handler(environ, start_response):
# Translate IIS's weird URLs
url = environ['SCRIPT_NAME'] + environ['PATH_INFO']
paths = url[1:].split('/')[path_strip:]
script_name = '/' + '/'.join(paths[:path_prefix])
path_info = '/'.join(paths[path_prefix:])
if path_info:
path_info = '/' + path_info
environ['SCRIPT_NAME'] = script_name
environ['PATH_INFO'] = path_info
return application(environ, start_response)
def __ExtensionFactory__():
return isapi_wsgi.ISAPISimpleHandler(handler)
if __name__ == '__main__':
from isapi.install import ISAPIParameters, HandleCommandLine
params = ISAPIParameters()
HandleCommandLine(params)