py3: shift from __future__ import absolute import to beginning (issue5269)

contrib/win32/hgwebdir_wsgi.py

@@ -1,134 +1,135
 # An example WSGI script for IIS/isapi-wsgi to export multiple hgweb repos
 # Copyright 2010-2016 Sune Foldager <[e-mail]>
 #
 # 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
 # - PyWin32 for Python 2.7 (32 or 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).
 
-from __future__ import absolute_import
 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)