[lit] Implement non-pipelined ‘mkdir’, ‘diff’ and ‘rm’ commands internally

Summary:
The internal shell already supports 'cd', ‘export’ and ‘echo’ commands. 
This patch adds implementation of non-pipelined ‘mkdir’, ‘diff’ and ‘rm’ 
commands as the internal shell builtins.

Reviewers: Zachary Turner, Reid Kleckner

Subscribers: llvm-commits

Differential Revision: https://reviews.llvm.org/D39567

llvm-svn: 318911

1 files changed, 28 insertions, 0 deletions

diff --git a/llvm/utils/lit/tests/Inputs/shtest-shell/check_path.py b/llvm/utils/lit/tests/Inputs/shtest-shell/check_path.py
new file mode 100644
index 00000000000..c1d279700de
--- /dev/null
+++ b/llvm/utils/lit/tests/Inputs/shtest-shell/check_path.py
@@ -0,0 +1,28 @@
+#!/usr/bin/env python
+
+import os
+import sys
+
+
+def check_path(argv):
+    if len(argv) < 3:
+        print("Wrong number of args")
+        return 1
+
+    type = argv[1]
+    paths = argv[2:]
+    exit_code = 0
+
+    if type == 'dir':
+        for idx, dir in enumerate(paths):
+            print(os.path.isdir(dir))
+    elif type == 'file':
+        for idx, file in enumerate(paths):
+            print(os.path.isfile(file))
+    else:
+        print("Unrecognised type {}".format(type))
+        exit_code = 1
+    return exit_code
+
+if __name__ == '__main__':
+    sys.exit (check_path (sys.argv))