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[ruby-core:22900] * tool/ifchange, win32/ifchange.bat: extended --timestamp option. git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@22974 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
77 lines
1.5 KiB
Batchfile
Executable file
77 lines
1.5 KiB
Batchfile
Executable file
@echo off
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:: usage: ifchange target temporary
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set timestamp=
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:optloop
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for %%I in (%1) do set opt=%%~I
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if "%opt%" == "--timestamp" (
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set timestamp=.
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shift
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goto :optloop
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) else if "%opt:~0,12%" == "--timestamp=" (
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set timestamp=%opt:~12%
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shift
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goto :optloop
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)
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if "%opt%" == "" goto :end
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set dest=%1
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set src=%2
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set dest=%dest:/=\%
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set src=%src:/=\%
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if not "%dest%" == "" if not "%dest%" == "%%dest:/=\%%" goto :nt
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if not exist %2 goto :end
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:: check if fc.exe works.
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echo foo > conftst1.tmp
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echo bar > conftst2.tmp
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fc.exe conftst1.tmp conftst2.tmp > nul
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if not errorlevel 1 goto :brokenfc
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del conftst1.tmp > nul
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del conftst2.tmp > nul
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:: target does not exist or new file differs from it.
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if not exist %1 goto :update
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fc.exe %1 %2 > nul
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if errorlevel 1 goto :update
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:unchange
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echo %1 unchanged.
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del %2
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goto :end
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:brokenfc
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del conftest1.tmp > nul
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del conftest2.tmp > nul
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echo FC.EXE does not work properly.
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echo assuming %1 should be changed.
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:update
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echo %1 updated.
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:: if exist %1 del %1
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dir /b %2
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copy %2 %1
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del %2
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goto :end
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:nt
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if not exist %src% goto :end
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if exist %dest% (
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fc.exe %dest% %src% > nul && (
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echo %1 unchanged.
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del %src%
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goto :nt_end
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)
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)
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echo %1 updated.
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copy %src% %dest% > nul
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del %src%
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:nt_end
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if "%timestamp%" == "" goto :end
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if "%timestamp%" == "." (
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for %%I in ("%dest%") do set timestamp=%%~dpI.time.%%~nxI
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)
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goto :end > "%timestamp%"
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:end
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