Merge pull request swiftlang#21210 from compnerd/ill-replace-you-with-a-tiny-python-script

stdlib: replace shell script with python

Author: compnerd

test/stdlib/Reflection.swift

@@ -1,7 +1,7 @@
 // RUN: %empty-directory(%t)
 // RUN: %target-build-swift -parse-stdlib %s -module-name Reflection -o %t/a.out
 // RUN: %target-codesign %t/a.out
-// RUN: %S/timeout.sh 360 %target-run %t/a.out | %FileCheck %s
+// RUN: %{python} %S/timeout.py 360 %target-run %t/a.out | %FileCheck %s
 // REQUIRES: executable_test
 // FIXME: timeout wrapper is necessary because the ASan test runs for hours
 

test/stdlib/Reflection_objc.swift

@@ -3,15 +3,16 @@
 // RUN: %target-clang %S/Inputs/Mirror/Mirror.mm -c -o %t/Mirror.mm.o -g
 // RUN: %target-build-swift -parse-stdlib %s -module-name Reflection -I %S/Inputs/Mirror/ -Xlinker %t/Mirror.mm.o -o %t/a.out
 // RUN: %target-codesign %t/a.out
-// RUN: %S/timeout.sh 360 %target-run %t/a.out %S/Inputs/shuffle.jpg | %FileCheck %s
-// REQUIRES: executable_test
+// RUN: %{python} %S/timeout.py 360 %target-run %t/a.out %S/Inputs/shuffle.jpg | %FileCheck %s
 // FIXME: timeout wrapper is necessary because the ASan test runs for hours
 
+// REQUIRES: executable_test
+// REQUIRES: objc_interop
+
 //
 // DO NOT add more tests to this file.  Add them to test/1_stdlib/Runtime.swift.
 //
 
-// XFAIL: linux
 
 import Swift
 import Foundation

test/stdlib/timeout.py

@@ -0,0 +1,19 @@
+#!/uar/bin/env python
+
+import subprocess
+import sys
+import threading
+
+
+def watchdog(command, timeout=None):
+    process = subprocess.Popen(command)
+    timer = threading.Timer(timeout, process.kill)
+    try:
+        timer.start()
+        process.communicate()
+    finally:
+        timer.cancel()
+
+
+if __name__ == '__main__':
+    watchdog(sys.argv[2:], timeout=sys.argv[1])