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[Lit] Fix to prevent creation of "%SystemDrive%" directory on Windows. 

This patch propogates the environment variable SYSTEMDRIVE on Windows when
running the unit tests. This prevents the creation of a directory named
"%SystemDrive%" when running the unit tests from FileSystemTest that use the
function llvm::sys::fs::remove_directories which in turn uses SHFileOperationW.
It is within SHFileOperationW that this environment variable may be used and if
undefined causes the creation of a "%SystemDrive%" directory in the current
directory.

Differential Revision: https://reviews.llvm.org/D32910

llvm-svn: 302409
This commit is contained in:
Andrew Ng 2017-05-08 08:55:38 +00:00
parent c96a84d813
commit 9f9c41adec
1 changed files with 4 additions and 0 deletions
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4
llvm/test/Unit/lit.cfg
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@ -43,6 +43,10 @@ if sys.platform in ['win32', 'cygwin'] and os.path.isdir(config.shlibdir):
config.environment['PATH'] = os.path.pathsep.join((
config.shlibdir, config.environment['PATH']))
# Win32 may use %SYSTEMDRIVE% during file system shell operations, so propogate.
if sys.platform == 'win32' and 'SYSTEMDRIVE' in os.environ:
config.environment['SYSTEMDRIVE'] = os.environ['SYSTEMDRIVE']
###
# Check that the object root is known.