Short answer (based on complexity) you can't.  Why not use tried and true methods such as OSQL i.e (inside a BAT file)

SET ChangeRecord=ABC123

SET LOGDIR="C:\Temp\%ChangeRecord%"

IF NOT EXIST %LOGDIR% MKDIR %LOGDIR%

SET LOG=%LOGDIR%\ProdInstall_%ChangeRecord%_runsql.log

SET PREFIX=%LOGDIR%\prd.

SET SRVNAME=YourServerNameHere

SET DB=YourDBNameHere

ECHO. > %LOG%

osql  -S%SRVNAME% -E -n   -d%DB% -i "C:\Temp\PROD\Database\Stored Procedures\SPNAMEHERE.sql" -o %PREFIX%SPNAMEHERE.sql.err >> %LOG%

OR a 3rd party (CHEAP) tool like SQL Compare by Red Gate???