@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.

set WIN_TOOLS_ROOT_URL=https://storage.googleapis.com/chrome-infra/
:: It used to be %~dp0 but ADODB.Stream may fail to write to this directory if
:: the directory DACL is set to elevated integrity level.
set ZIP_DIR=%TEMP%

:: Get absolute root directory (.js scripts don't handle relative paths well).
pushd %~dp0..\..
set WIN_TOOLS_ROOT_DIR=%CD%
popd

if "%1" == "force" (
  set WIN_TOOLS_FORCE=1
  shift /1
)


:PYTHON_CHECK
if not exist "%WIN_TOOLS_ROOT_DIR%\python276_bin" goto :PY27_INSTALL
if not exist "%WIN_TOOLS_ROOT_DIR%\python.bat" goto :PY27_INSTALL
set ERRORLEVEL=0
goto :GIT_CHECK


:PY27_INSTALL
echo Installing python 2.7.6...
:: Cleanup python directory if it was existing.
if exist "%WIN_TOOLS_ROOT_DIR%\python276_bin\." rd /q /s "%WIN_TOOLS_ROOT_DIR%\python276_bin"
if exist "%ZIP_DIR%\python276.zip" del "%ZIP_DIR%\python276.zip"
echo Fetching from %WIN_TOOLS_ROOT_URL%python276_bin.zip
cscript //nologo //e:jscript "%~dp0get_file.js" %WIN_TOOLS_ROOT_URL%python276_bin.zip "%ZIP_DIR%\python276_bin.zip"
if errorlevel 1 goto :PYTHON_FAIL
:: Will create python276_bin\...
cscript //nologo //e:jscript "%~dp0unzip.js" "%ZIP_DIR%\python276_bin.zip" "%WIN_TOOLS_ROOT_DIR%"
:: Create the batch files.
call copy /y "%~dp0python276.new.bat" "%WIN_TOOLS_ROOT_DIR%\python.bat" 1>nul
call copy /y "%~dp0pylint.new.bat" "%WIN_TOOLS_ROOT_DIR%\pylint.bat" 1>nul
del "%ZIP_DIR%\python276_bin.zip"
set ERRORLEVEL=0
goto :GIT_CHECK


:PYTHON_FAIL
echo ... Failed to checkout python automatically.
echo You should get the "prebaked" version at %WIN_TOOLS_ROOT_URL%
set ERRORLEVEL=1
goto :END

:GIT_CHECK
if "%DEPOT_TOOLS_GIT_BLEEDING%" == "1" (
  set GIT_VERSION=1.9.5.chromium.6
) else (
  set GIT_VERSION=1.9.5.chromium.6
)
for /f "tokens=2 delims=[]" %%i in ('ver') do set VERSTR=%%i
for /f "tokens=2,3 delims=. " %%i in ("%VERSTR%") do (set VERMAJOR=%%i & set VERMINOR=%%j)
if %VERMAJOR% lss 5 set GIT_VERSION=%GIT_VERSION%-xp
if %VERMAJOR% equ 5 if %VERMINOR% lss 2 set GIT_VERSION=%GIT_VERSION%-xp

:: Clean up any release which doesn't match the one we want.
for /d %%i in (%WIN_TOOLS_ROOT_DIR%\git-*_bin) do (
  if not %%i == %WIN_TOOLS_ROOT_DIR%\git-%GIT_VERSION%_bin (
    rmdir /s /q "%%i"
  )
)
set GIT_BIN_DIR=git-%GIT_VERSION%_bin
set GIT_ZIP_FILE=%GIT_BIN_DIR%.zip
set GIT_ZIP_URL=https://commondatastorage.googleapis.com/chrome-infra/%GIT_ZIP_FILE%

if "%WIN_TOOLS_FORCE%" == "1" goto :GIT_INSTALL
if exist "%WIN_TOOLS_ROOT_DIR%\%GIT_BIN_DIR%\cmd\git.cmd" (
  call "%WIN_TOOLS_ROOT_DIR%\%GIT_BIN_DIR%\cmd\git.cmd" --version 2>nul 1>nul
  if errorlevel 1 goto :GIT_INSTALL
  rem Several git versions can live side-by-side; check the top-level
  rem batch script to make sure it points to the desired version.
  find "%GIT_BIN_DIR%" "%WIN_TOOLS_ROOT_DIR%\git.bat" 2>nul 1>nul
  if errorlevel 1 goto :GIT_COPY_BATCH_FILES
  goto :END
)
goto :GIT_INSTALL


:GIT_INSTALL
echo Installing git %GIT_VERSION% (avg 1-2 min download) ...
:: git is not accessible; check it out and create 'proxy' files.
if exist "%ZIP_DIR%\git.zip" del "%ZIP_DIR%\git.zip"
echo Fetching from %GIT_ZIP_URL%
cscript //nologo //e:jscript "%~dp0get_file.js" %GIT_ZIP_URL% "%ZIP_DIR%\git.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" "%ZIP_DIR%\git.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 "%ZIP_DIR%\git.zip"
goto :GIT_COPY_BATCH_FILES


:GIT_COPY_BATCH_FILES
:: Create the batch files.
call copy /y "%WIN_TOOLS_ROOT_DIR%\%GIT_BIN_DIR%\git.bat" "%WIN_TOOLS_ROOT_DIR%\git.bat" 1>nul
call copy /y "%WIN_TOOLS_ROOT_DIR%\%GIT_BIN_DIR%\gitk.bat" "%WIN_TOOLS_ROOT_DIR%\gitk.bat" 1>nul
call copy /y "%WIN_TOOLS_ROOT_DIR%\%GIT_BIN_DIR%\ssh.bat" "%WIN_TOOLS_ROOT_DIR%\ssh.bat" 1>nul
call copy /y "%WIN_TOOLS_ROOT_DIR%\%GIT_BIN_DIR%\ssh-keygen.bat" "%WIN_TOOLS_ROOT_DIR%\ssh-keygen.bat" 1>nul

:: Ensure autocrlf and filemode are set correctly.
call "%WIN_TOOLS_ROOT_DIR%\%GIT_BIN_DIR%\cmd\git.cmd" config --system core.autocrlf false
call "%WIN_TOOLS_ROOT_DIR%\%GIT_BIN_DIR%\cmd\git.cmd" config --system core.filemode false
goto :END


:GIT_FAIL
echo ... Failed to checkout git automatically.
echo You should get the "prebaked" version used at %GIT_ZIP_URL%
set ERRORLEVEL=1
goto :END

:returncode
set WIN_TOOLS_ROOT_URL=
set WIN_TOOLS_ROOT_DIR=
exit /b %ERRORLEVEL%

:END
call :returncode %ERRORLEVEL%