Add python 2.7.5 support on Windows. Not enabled by default.

bootstrap/win/win_tools.bat

 @echo off
 :: Copyright (c) 2012 The Chromium Authors. All rights reserved.
 :: Use of this source code is governed by a BSD-style license that can be
 :: found in the LICENSE file.
 
 :: This script will try to find if svn and python are accessible and it not,
 :: it will try to download it and 'install' it in depot_tools.
 
 :: Sadly, we can't use SETLOCAL here otherwise it ERRORLEVEL is not correctly
 :: returned.
@@ skipping 25 matching lines @@
 :MSYS_PATH_CHECK
 call find "mingw" "%WIN_TOOLS_ROOT_DIR%\%GIT_BIN_DIR%\cmd\git.cmd" 2>nul 1>nul
 if errorlevel 1 goto :SVN_CHECK
 rmdir /S /Q "%WIN_TOOLS_ROOT_DIR%\%GIT_BIN_DIR%"
 
 
 :GIT_INSTALL
 echo Installing git (avg 1-2 min download) ...
 :: git is not accessible; check it out and create 'proxy' files.
 if exist "%~dp0git.zip" del "%~dp0git.zip"
+echo Fetching from %WIN_TOOLS_ROOT_URL%/third_party/git-1.8.0_bin.zip
 cscript //nologo //e:jscript "%~dp0get_file.js" %WIN_TOOLS_ROOT_URL%/third_party/git-1.8.0_bin.zip "%~dp0git.zip"
 if errorlevel 1 goto :GIT_FAIL
 :: Cleanup svn directory if it was existing.
 if exist "%WIN_TOOLS_ROOT_DIR%\%GIT_BIN_DIR%\." rd /q /s "%WIN_TOOLS_ROOT_DIR%\%GIT_BIN_DIR%"
 :: Will create %GIT_BIN_DIR%\...
 cscript //nologo //e:jscript "%~dp0unzip.js" "%~dp0git.zip" "%WIN_TOOLS_ROOT_DIR%"
 if errorlevel 1 goto :GIT_FAIL
 if not exist "%WIN_TOOLS_ROOT_DIR%\%GIT_BIN_DIR%\." goto :GIT_FAIL
 del "%~dp0git.zip"
 :: Create the batch files.
@@ skipping 22 matching lines @@
 if "%WIN_TOOLS_FORCE%" == "1" goto :SVN_INSTALL
 call svn --version 2>nul 1>nul
 if errorlevel 1 goto :SVN_INSTALL
 goto :PYTHON_CHECK
 
 
 :SVN_INSTALL
 echo Installing subversion ...
 :: svn is not accessible; check it out and create 'proxy' files.
 if exist "%~dp0svn.zip" del "%~dp0svn.zip"
+echo Fetching from %WIN_TOOLS_ROOT_URL%/third_party/svn_bin.zip
 cscript //nologo //e:jscript "%~dp0get_file.js" %WIN_TOOLS_ROOT_URL%/third_party/svn_bin.zip "%~dp0svn.zip"
 if errorlevel 1 goto :SVN_FAIL
 :: Cleanup svn directory if it was existing.
 if exist "%WIN_TOOLS_ROOT_DIR%\svn\." rd /q /s "%WIN_TOOLS_ROOT_DIR%\svn"
 if exist "%WIN_TOOLS_ROOT_DIR%\svn_bin\." rd /q /s "%WIN_TOOLS_ROOT_DIR%\svn_bin"
 :: Will create svn_bin\...
 cscript //nologo //e:jscript "%~dp0unzip.js" "%~dp0svn.zip" "%WIN_TOOLS_ROOT_DIR%"
 if errorlevel 1 goto :SVN_FAIL
 if not exist "%WIN_TOOLS_ROOT_DIR%\svn_bin\." goto :SVN_FAIL
 del "%~dp0svn.zip"
@@ skipping 19 matching lines @@
 if "%WIN_TOOLS_FORCE%" == "1" goto :PYTHON_INSTALL
 call python --version 2>nul 1>nul
 if errorlevel 1 goto :PYTHON_INSTALL
 
 :: We are done.
 set ERRORLEVEL=0
 goto :END
 
 
 :PYTHON_INSTALL
-echo Installing python ...
+if "%DEPOT_TOOLS_PYTHON_275%" == "1" goto :PY275_INSTALL
+goto :PY26_INSTALL
+
+
+:PY275_INSTALL
+echo Installing python 2.7.5...
+:: Cleanup python directory if it was existing.
+if exist "%WIN_TOOLS_ROOT_DIR%\python275_bin\." rd /q /s "%WIN_TOOLS_ROOT_DIR%\python275_bin"
+if exist "%~dp0python275.zip" del "%~dp0python275.zip"
+echo Fetching from %WIN_TOOLS_ROOT_URL%/third_party/python275_bin.zip
+cscript //nologo //e:jscript "%~dp0get_file.js" %WIN_TOOLS_ROOT_URL%/third_party/python275_bin.zip "%~dp0python275_bin.zip"
+if errorlevel 1 goto :PYTHON_FAIL
+:: Will create python275_bin\...
+cscript //nologo //e:jscript "%~dp0unzip.js" "%~dp0python275_bin.zip" "%WIN_TOOLS_ROOT_DIR%"

[iannucci, 2013/10/07 23:50:59]

Is there a way for us to replace all of our bat files with javascript? Or would
that be slow?

[M-A Ruel, 2013/10/08 00:55:52]

It'd be fine but not overly excited.

+:: Create the batch files.
+call copy /y "%~dp0python275.new.bat" "%WIN_TOOLS_ROOT_DIR%\python.bat" 1>nul
+call copy /y "%~dp0pylint.new.bat" "%WIN_TOOLS_ROOT_DIR%\pylint.bat" 1>nul

[iannucci, 2013/10/07 23:50:59]

Maybe create these before the directory so if we try to look for the existence
of the dir we know that these are already done too.

[M-A Ruel, 2013/10/08 00:55:52]

Right now the python.bat script is a way to inhibit being auto-upgraded. It
won't be true soon.

+set ERRORLEVEL=0
+goto :END
+
+
+:PY26_INSTALL
+echo Installing python 2.6...
 :: Cleanup python directory if it was existing.
 if exist "%WIN_TOOLS_ROOT_DIR%\python_bin\." rd /q /s "%WIN_TOOLS_ROOT_DIR%\python_bin"
 call svn co -q %WIN_TOOLS_ROOT_URL%/third_party/python_26 "%WIN_TOOLS_ROOT_DIR%\python_bin"
 if errorlevel 1 goto :PYTHON_FAIL
 :: Create the batch files.
 call copy /y "%~dp0python.new.bat" "%WIN_TOOLS_ROOT_DIR%\python.bat" 1>nul
 call copy /y "%~dp0pylint.new.bat" "%WIN_TOOLS_ROOT_DIR%\pylint.bat" 1>nul
 set ERRORLEVEL=0
 goto :END
 
 
 :PYTHON_FAIL
 echo ... Failed to checkout python automatically.
-echo Please visit http://python.org to download the latest python 2.x client before
+echo Please visit http://python.org to download the latest python 2.7.x client before
 echo continuing.
 echo You can also get the "prebacked" version used at %WIN_TOOLS_ROOT_URL%/third_party/
 set ERRORLEVEL=1
 goto :END
 
 
 :returncode
 set WIN_TOOLS_ROOT_URL=
 set WIN_TOOLS_ROOT_DIR=
 exit /b %ERRORLEVEL%
 
 :END
 call :returncode %ERRORLEVEL%