[lit] Avoid CRLFs in bash scripts on Windows

Native Windows Python will do line ending translation by default, which
we don't want in bash scripts.  If we're not native Windows Python, then
'b' is ignored.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@177602 91177308-0d34-0410-b5e6-96231b3b80d8

diff --git a/utils/lit/lit/TestRunner.py b/utils/lit/lit/TestRunner.py
index 07fb43f840d72474d609f76281d6ff9b4b07a1e4..84176996a8c8dcb496f638fde212e35ca53aeb3a 100644 (file)
--- a/utils/lit/lit/TestRunner.py
+++ b/utils/lit/lit/TestRunner.py
@@ -277,7 +277,10 @@ def executeScript(test, litConfig, tmpBase, commands, cwd):
         script += '.bat'
 
     # Write script file
-    f = open(script,'w')
+    mode = 'w'
+    if litConfig.isWindows and not isWin32CMDEXE:
+      mode += 'b'  # Avoid CRLFs when writing bash scripts.
+    f = open(script, mode)
     if isWin32CMDEXE:
         f.write('\nif %ERRORLEVEL% NEQ 0 EXIT\n'.join(commands))
     else: