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Use lit's internal shell runner on Windows for Clang tests 

The behavior can be overridden by setting LIT_USE_INTERNAL_SHELL=0 in
the environment.

This fixes issues with /dev/null for me and brings the test suite time
down to 30s.  =D

llvm-svn: 179283
This commit is contained in:
Reid Kleckner 2013-04-11 13:34:18 +00:00
parent 37e8fe13e0
commit 0675f85ef2
1 changed files with 12 additions and 3 deletions
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15
clang/test/lit.cfg
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@ -24,12 +24,21 @@ if platform.system() == 'Windows':
config.environment['PATH']))
config.environment['PATH'] = path
# Choose between lit's internal shell pipeline runner and a real shell. If
# LIT_USE_INTERNAL_SHELL is in the environment, we use that as an override.
use_lit_shell = os.environ.get("LIT_USE_INTERNAL_SHELL")
if use_lit_shell:
# 0 is external, "" is default, and everything else is internal.
execute_external = (use_lit_shell == "0")
else:
# Otherwise we default to internal on Windows and external elsewhere, as
# bash on Windows is usually very slow.
execute_external = (not sys.platform in ['win32'])
# testFormat: The test format to use to interpret tests.
#
# For now we require '&&' between commands, until they get globally killed and
# the test runner updated.
execute_external = (platform.system() != 'Windows'
or lit.getBashPath() not in [None, ""])
config.test_format = lit.formats.ShTest(execute_external)
# suffixes: A list of file extensions to treat as test files.
@ -219,7 +228,7 @@ if platform.system() not in ['FreeBSD']:
config.available_features.add('crash-recovery')
# Shell execution
if platform.system() not in ['Windows'] or lit.getBashPath() != '':
if execute_external:
config.available_features.add('shell')
# Exclude MSYS due to transforming '/' to 'X:/mingwroot/'.