[lit] Add --version option.

llvm-svn: 203496

1 files changed, 7 insertions, 0 deletions

diff --git a/llvm/utils/lit/lit/main.py b/llvm/utils/lit/lit/main.py
index a2486193e36..9141ad7091e 100755
--- a/llvm/utils/lit/lit/main.py
+++ b/llvm/utils/lit/lit/main.py
@@ -136,6 +136,9 @@ def main(builtinParameters = {}):
     from optparse import OptionParser, OptionGroup
     parser = OptionParser("usage: %prog [options] {file-or-path}")
 
+    parser.add_option("", "--version", dest="show_version",
+                      help="Show version and exit",
+                      action="store_true", default=False)
     parser.add_option("-j", "--threads", dest="numThreads", metavar="N",
                       help="Number of testing threads",
                       type=int, action="store", default=None)
@@ -228,6 +231,10 @@ def main(builtinParameters = {}):
 
     (opts, args) = parser.parse_args()
 
+    if opts.show_version:
+        print "lit %s" % (lit.__version__,)
+        return
+
     if not args:
         parser.error('No inputs specified')