bpo-36511: Windows ARM32 buildbot changes (GH-12917)

PCbuild/rt.bat

@@ -39,6 +39,7 @@ if "%1"=="-O" (set dashO=-O)     & shift & goto CheckOpts
 if "%1"=="-q" (set qmode=yes)    & shift & goto CheckOpts
 if "%1"=="-d" (set suffix=_d)    & shift & goto CheckOpts
 if "%1"=="-x64" (set prefix=%pcbuild%amd64) & shift & goto CheckOpts
+if "%1"=="-arm32" (set prefix=%pcbuild%arm32) & shift & goto CheckOpts
 if NOT "%1"=="" (set regrtestargs=%regrtestargs% %1) & shift & goto CheckOpts
 
 if not defined prefix set prefix=%pcbuild%win32

Tools/buildbot/test.bat

@@ -5,9 +5,11 @@ setlocal
 set here=%~dp0
 set rt_opts=-q -d
 set regrtest_args=-j1
+set arm32_ssh=
 
 :CheckOpts
 if "%1"=="-x64" (set rt_opts=%rt_opts% %1) & shift & goto CheckOpts
+if "%1"=="-arm32" (set rt_opts=%rt_opts% %1) & (set arm32_ssh=true) & shift & goto CheckOpts
 if "%1"=="-d" (set rt_opts=%rt_opts% %1) & shift & goto CheckOpts
 if "%1"=="-O" (set rt_opts=%rt_opts% %1) & shift & goto CheckOpts
 if "%1"=="-q" (set rt_opts=%rt_opts% %1) & shift & goto CheckOpts
@@ -16,4 +18,37 @@ if "%1"=="+q" (set rt_opts=%rt_opts:-q=%) & shift & goto CheckOpts
 if NOT "%1"=="" (set regrtest_args=%regrtest_args% %1) & shift & goto CheckOpts
 
 echo on
+if "%arm32_ssh%"=="true" goto :Arm32Ssh
+
 call "%here%..\..\PCbuild\rt.bat" %rt_opts% -uall -rwW --slowest --timeout=1200 --fail-env-changed %regrtest_args%
+exit /b 0
+
+:Arm32Ssh
+set dashU=-unetwork,decimal,subprocess,urlfetch,tzdata
+if "%SSH_SERVER%"=="" goto :Arm32SshHelp
+if "%PYTHON_SOURCE%"=="" (set PYTHON_SOURCE=%here%..\..\)
+if "%REMOTE_PYTHON_DIR%"=="" (set REMOTE_PYTHON_DIR=C:\python\)
+set TEMP_ARGS=--temp %REMOTE_PYTHON_DIR%temp
+ssh %SSH_SERVER% "if EXIST %REMOTE_PYTHON_DIR% (rd %REMOTE_PYTHON_DIR% /s/q)"
+ssh %SSH_SERVER% "md %REMOTE_PYTHON_DIR%PCBuild\arm32"
+ssh %SSH_SERVER% "md %REMOTE_PYTHON_DIR%temp"
+for /f "USEBACKQ" %%i in (`dir PCbuild\*.bat /b`) do @scp PCBuild\%%i "%SSH_SERVER%:%REMOTE_PYTHON_DIR%PCBuild"
+for /f "USEBACKQ" %%i in (`dir PCbuild\*.py /b`) do @scp PCBuild\%%i "%SSH_SERVER%:%REMOTE_PYTHON_DIR%PCBuild"
+for /f "USEBACKQ" %%i in (`dir PCbuild\arm32\*.exe /b`) do @scp PCBuild\arm32\%%i "%SSH_SERVER%:%REMOTE_PYTHON_DIR%PCBuild\arm32"
+for /f "USEBACKQ" %%i in (`dir PCbuild\arm32\*.pyd /b`) do @scp PCBuild\arm32\%%i "%SSH_SERVER%:%REMOTE_PYTHON_DIR%PCBuild\arm32"
+for /f "USEBACKQ" %%i in (`dir PCbuild\arm32\*.dll /b`) do @scp PCBuild\arm32\%%i "%SSH_SERVER%:%REMOTE_PYTHON_DIR%PCBuild\arm32"
+scp -r "%PYTHON_SOURCE%Include" "%SSH_SERVER%:%REMOTE_PYTHON_DIR%Include"
+scp -r "%PYTHON_SOURCE%Lib" "%SSH_SERVER%:%REMOTE_PYTHON_DIR%Lib"
+
+set rt_args=%rt_opts% %dashU% -rwW --slowest --timeout=1200 --fail-env-changed %regrtest_args% %TEMP_ARGS%
+ssh %SSH_SERVER% "set TEMP=%REMOTE_PYTHON_DIR%temp & %REMOTE_PYTHON_DIR%PCbuild\rt.bat" %rt_args%
+exit /b 0
+
+:Arm32SshHelp
+echo SSH_SERVER environment variable must be set to administrator@[ip address]
+echo where [ip address] is the address of a Windows IoT Core ARM32 device.
+echo.
+echo The test worker should have the SSH agent running.
+echo Also a key must be created with ssh-keygen and added to both the buildbot worker machine
+echo and the ARM32 worker device: see https://docs.microsoft.com/en-us/windows/iot-core/connect-your-device/ssh
+exit /b 127