add script to ensure lit test contains %run

llvm-svn: 208819

1 files changed, 27 insertions, 0 deletions

diff --git a/compiler-rt/lib/sanitizer_common/scripts/litlint.py b/compiler-rt/lib/sanitizer_common/scripts/litlint.py
new file mode 100755
index 00000000000..15b496ff4fc
--- /dev/null
+++ b/compiler-rt/lib/sanitizer_common/scripts/litlint.py
@@ -0,0 +1,27 @@
+#!/usr/bin/python
+#
+# lit-lint
+#
+# Check that the RUN commands in lit tests can be executed with an emulator.
+#
+
+import argparse
+import re
+import sys
+
+parser = argparse.ArgumentParser(description='lint lit tests')
+parser.add_argument('filenames', nargs='+')
+parser.add_argument('--filter')  # ignored
+args = parser.parse_args()
+
+runRegex = re.compile(r'(?<!-o)(?<!%run) %t\s')
+errorMsg = "litlint: {}:{}: error: missing %run before %t.\n\t{}"
+
+def LintFile(p):
+    with open(p, 'r') as f:
+        for i, s in enumerate(f.readlines()):
+            if runRegex.search(s):
+               sys.stderr.write(errorMsg.format(p, i, s))
+
+for p in args.filenames:
+    LintFile(p)