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+@echo off
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+REM install-avr-tools.bat by Bill Westfield (WestfW)
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+REM Find the avr-gcc tools that are part of an Arduino install, and
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+REM add them to the PATH for the duration of the current shell.
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+REM See https://hackaday.io/project/19935
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+REM https://github.com/WestfW/Arduino-avr-tools-install
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+@echo.
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+SET DEBUG=REM
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+REM For debugging, do:
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+REM SET DEBUG=@echo
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+
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+call :clearerrors
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+%DEBUG% checking args. errorlevel=%ERRORLEVEL%
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+set TMPFILE=%1
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+if "%1" EQU "" (
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+ REM If we're called without an arg, we're probably going to need to
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+ REM explicitly reinvoke cmd.exe, which will prevent us from being able
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+ REM to change the current path. So use a secondary tmp .bat file
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+ call :gettemp
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+)
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+
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+REM See if we're already in Delayed Evaluation mode.
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+%DEBUG% checking cmd mode
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+call :clearerrors
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+if "!x!" EQU "%x%" GOTO findArduino
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+
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+REM We have to run in /V mode to get late evaluation of variables inside loops
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+%DEBUG% re-running in delayed eval mode
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+cmd.exe /V /C "%0" %TMPFILE%
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+%DEBUG% recursion finished. Errorlevel %ERRORLEVEL%
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+
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+REM For some reason, W8 gets an ERRORLEVEL 255 here. Perhaps it doesn't like
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+REM that we created a batch file? In any case, we can try to ignore it.
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+if %ERRORLEVEL% NEQ 255 (
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+ if ERRORLEVEL 1 (
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+ %DEBUG% Unexpected ErrorLevel
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+ GOTO EOF
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+ )
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+)
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+REM Assuming it worked, invoke the temp file that was created
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+if not exist %TMPFILE% (
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+ %DEBUG% Unexpected error. No TMPFILE %TMPFILE%
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+ exit /b 432
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+)
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+%DEBUG% calling tmpfile
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+call %TMPFILE%
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+REM Pretty print some stuff for the user.
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+@echo Checking tool versions
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+@echo.
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+avr-gcc --version
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+call :avrdudeversion
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+REM And we're done (Most of the work being done in the sub-process.)
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+goto eof
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+
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+REM ======================================================================
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+
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+:findArduino
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+REM Here is most of the work of the script.
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+REM Look through the various places where an Arduino install is likely to exist,
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+REM make sure that we can find the avr-gcc binaries that should be part of that
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+REM install, print out the version, and ask the user if that's what they want.
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+
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+REM Look for existing avr-gcc in path.
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+%DEBUG% Looking for avr-gcc in current path
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+call :clearerrors
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+call :which avr-gcc.exe
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+IF "%gotwhich%" NEQ "" (
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+ @ECHO avr-gcc already installed at "%gotwhich%"
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+ avr-gcc --version
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+ exit /b 123
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+) ELSE (
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+ @ECHO No avr-gcc currently installed.
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+)
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+REM look for Arduino install.
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+set picked=n
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+set printed=n
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+call :scandir "%ProgramFiles%"
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+if ERRORLEVEL 1 exit /b 1
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+if "%picked%" NEQ "y" call :scandir "%ProgramFiles(x86)%"
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+if ERRORLEVEL 1 exit /b 1
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+if "%picked%" NEQ "y" call :scandir "C:\bin"
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+if ERRORLEVEL 1 exit /b 1
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+if "%picked%" EQU "y" goto gotdir
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+@echo.
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+ REM try some of the more unlikely places that Arduino might live.
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+
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+:noarduino
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+ @echo Can't find Arduino
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+ exit /b 1
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+
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+
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+REM Given the name of a program-containing directory (like "\bin"),
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+REM See if it looks like there are any "Arduino*" directories there,
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+REM and prompt the user to ask whether that's the one we want to use
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+REM for avr-gcc. If so, set variables saying we picked one.
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+:scandir
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+ %DEBUG% ScanDir %1
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+ SET root=%~1
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+ if NOT EXIST "%root%" exit /b 0
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+ if NOT EXIST "%root%\Arduino*" exit /b 0
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+ FOR /F "tokens=*" %%f IN ('dir /b /x "%root%\Arduino*"') DO (
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+ SET prg=!root!\%%f
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+ if exist "!prg!\Hardware\tools\avr\bin\avr-gcc.exe" (
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+ if "%printed%" NEQ "Y" (
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+ echo At least one Arduino install found.
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+ echo.
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+ set printed=Y
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+ )
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+ @echo Looks like !prg! has version
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+ call :gccversion "!prg!\Hardware\tools\avr\bin\avr-gcc.exe"
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+ SET /P confirm="Use !prg! ? [y/n]>"
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+ if "!confirm!"=="x" exit /b 1
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+ if "!confirm!"=="y" (
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+ SET aroot=!prg!
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+ set picked=y
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+ exit /b 0
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+ )
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+ ) else %DEBUG% No Arduino exe in expected spot !prg!
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+ )
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+ exit /b 0
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+
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+
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+REM prompt for arduino install location.
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+@echo ****WHY DID WE GET HERE****
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+@echo asking if this is OK
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+SET /P confirm="Use %prg% [y/n]>"
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+if "%confirm%" NEQ "y" exit /b 0
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+
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+
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+:gotdir
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+REM figure out arduino install version.
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+%DEBUG% gotdir has aroot = !aroot!
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+IF EXIST "!aroot!\hardware\tools\avr\bin\avr-gcc.exe" (
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+ @echo Found avr-gcc
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+ set bin=!aroot!\hardware\tools\avr\bin
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+ set etc=!aroot!\hardware\tools\avr\etc
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+) else (
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+ @echo Cant find a bin directory in !aroot!
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+ exit /b 963
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+)
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+
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+%DEBUG% Checking for utils at %prg%\hardware\tools\avr\utils\bin\
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+IF EXIST "!aroot!\hardware\tools\avr\utils\bin\make.exe" (
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+ REM See if we have make and etc as well (from Arduino 1.0.x/WinAVR)
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+ %DEBUG% Found make.exe
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+ set utils=!aroot!\hardware\tools\avr\utils\bin
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+)
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+
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+
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+REM find bin directory.
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+REM create tentative path for binaries and put it in our tmp batch file
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+%DEBUG% Setting paths to include bin and etc
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+REM
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+REM setx will set a permanent path in the registry, but it won't take effect
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+REM until the next invocation of cmd.exe
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+REM setx PATH %bin%;%etc%
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+REM
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+%DEBUG% echoing PATH %PATH%;%bin%;%etc%
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+echo PATH %%PATH%%;%bin%;%etc%>%TMPFILE%
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+
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+%DEBUG% Have utils = %utils%
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+
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+IF "%utils%" NEQ "" (
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+
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+ REM Check for make already installed
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+ %DEBUG% Have utils; checking whether make is already installed.
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+ call :which make.exe
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+ if "%gotwhich%" EQU "" (
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+ %DEBUG% Adding utils as well at %utils%
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+ echo PATH %%PATH%%;%bin%;%etc%;%utils%>%TMPFILE%
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+ )
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+)
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+call :clearerrors
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+exit /b 0
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+goto eof
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+
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+
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+REM ----------------------------------------------------------------------
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+REM Subroutines
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+REM ----------------------------------------------------------------------
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+
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+:which
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+ %DEBUG% which %1
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+ SET gotwhich=
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+ for %%i in (%1) do set fullspec=%%~$PATH:i
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+ if not "x!fullspec!"=="x" (
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+ %DEBUG% !fullspec!
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+ set gotwhich=!fullspec!
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+ )
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+ %DEBUG% End which %gotwhich%
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+ goto eof
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+
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+
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+REM ----------------------------------------------------------------------
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+
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+:gccversion
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+ REM This implements "gcc --version | head -1" - show the first line
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+ if EXIST %1 (
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+ FOR /F "delims=*" %%l in ('%1 --version') DO (
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+ @echo %%l
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+ REM return after we've output one line
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+ exit /b 0
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+ )
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+ )
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+ exit /b 0
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+
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+
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+REM ----------------------------------------------------------------------
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+
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+:avrdudeversion
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+ SETLOCAL ENABLEDELAYEDEXPANSION
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+ REM This implements "gcc --version | head -4" - show the first line
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+ set /a count=4
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+ FOR /F "delims=*" %%l in ('"avrdude -v 2>&1"') DO (
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+ @echo %%l
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+ set /a count=!count!-1
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+ if !count! equ 0 (
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+ ENDLOCAL
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+ exit /b 0
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+ )
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+ )
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+ exit /b 0
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+goto :eof
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+
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+
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+REM ----------------------------------------------------------------------
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+
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+REM Get a unique temporary filename,
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+REM Thus uses our scriptname, a random number, and the time
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+:gettemp
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+ set TMPFILE=%TMP%\install-avr-tools-%RANDOM%-%TIME:~6,5%.bat
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+ if exist "%TMPFILE%" GOTO gettempname
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+ exit /b 0
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+
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+REM ----------------------------------------------------------------------
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+
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+REM Clear the ERRORLEVEL to 0, if it happened to be set
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+:clearerrors
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+ exit /b 0
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+
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+:eof
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WestfW