copy_compiler_dll.bat

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Author : Scott Graham
Date : 2015-01-28 12:29:53
Hash : b633dc61
Message : Avoid double copy of d3dcompiler_47.dll ninja expects the output of an action to update the timestamp, however a plain copy does not do this. So on a second run, ninja sees the timestamp of the copy .bat is newer than the dll (original publish date) so it re-copies. To avoid this, `touch` the dll on copy. BUG=453037 Change-Id: Icb849d2b0faaceeccfc33e2eda509c835c9cdc93 Reviewed-on: https://chromium-review.googlesource.com/244040 Reviewed-by: Jamie Madill <jmadill@chromium.org> Tested-by: Scott Graham <scottmg@chromium.org>

src/copy_compiler_dll.bat

@echo off
set _arch=%1
set _arch=%_arch:Win32=x86%
copy %2"\Redist\D3D\"%_arch%"\d3dcompiler_47.dll" %3 > NUL
:: This is equivalent to `touch', see:
:: https://technet.microsoft.com/en-us/library/bb490886.aspx
:: This avoids rerunning because this batch file is also copied to the gen dir,
:: so it's timestamp would otherwise be newer than the dll.
copy /b %3\d3dcompiler_47.dll+,, %3\d3dcompiler_47.dll > NUL

kc3-lang/angle/src/copy_compiler_dll.bat

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kc3-lang/angle /src/copy_compiler_dll.bat