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authorrobert <robert@openbsd.org>2018-09-11 18:18:58 +0000
committerrobert <robert@openbsd.org>2018-09-11 18:18:58 +0000
commit820e1f31efc1d6ed04795ba2e79f3044e1907492 (patch)
tree815cebb3734784074b661935c33f00bd5eb4d862 /lib/libcxx/utils/not.py
parentNuke unused LIST() ieee80211com_head. (diff)
downloadwireguard-openbsd-820e1f31efc1d6ed04795ba2e79f3044e1907492.tar.xz
wireguard-openbsd-820e1f31efc1d6ed04795ba2e79f3044e1907492.zip
import of libc++ 6.0.0
Diffstat (limited to 'lib/libcxx/utils/not.py')
-rw-r--r--lib/libcxx/utils/not.py44
1 files changed, 44 insertions, 0 deletions
diff --git a/lib/libcxx/utils/not.py b/lib/libcxx/utils/not.py
new file mode 100644
index 00000000000..d9ceb8515d0
--- /dev/null
+++ b/lib/libcxx/utils/not.py
@@ -0,0 +1,44 @@
+#===----------------------------------------------------------------------===##
+#
+# The LLVM Compiler Infrastructure
+#
+# This file is dual licensed under the MIT and the University of Illinois Open
+# Source Licenses. See LICENSE.TXT for details.
+#
+#===----------------------------------------------------------------------===##
+
+"""not.py is a utility for inverting the return code of commands.
+It acts similar to llvm/utils/not.
+ex: python /path/to/not.py ' echo hello
+ echo $? // (prints 1)
+"""
+
+import distutils.spawn
+import subprocess
+import sys
+
+
+def main():
+ argv = list(sys.argv)
+ del argv[0]
+ if len(argv) > 0 and argv[0] == '--crash':
+ del argv[0]
+ expectCrash = True
+ else:
+ expectCrash = False
+ if len(argv) == 0:
+ return 1
+ prog = distutils.spawn.find_executable(argv[0])
+ if prog is None:
+ sys.stderr.write('Failed to find program %s' % argv[0])
+ return 1
+ rc = subprocess.call(argv)
+ if rc < 0:
+ return 0 if expectCrash else 1
+ if expectCrash:
+ return 1
+ return rc == 0
+
+
+if __name__ == '__main__':
+ exit(main())