[U-Boot] [PATCH] tools: buildman: prevent trying to use the working directory as build dorectory

[Lothar Waßmann]

When the U-Boot base directory happens to have the same name as the
branch that buildman is directed to use via the '-b' option and no
output directory is specified with '-o', buildman happily starts
removing the whole U-Boot sources eventually only stopped with the
error message:
OSError: [Errno 20] Not a directory: '../<branch-name>/boards.cfg

Add a check to the builderthread.Mkdir function to verify that the
path it tries to create does not match the current working
directory.

Signed-off-by: Lothar Waßmann <LW at KARO-electronics.de>
---
 tools/buildman/builderthread.py | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/tools/buildman/builderthread.py b/tools/buildman/builderthread.py
index acaf500..3549029 100644
--- a/tools/buildman/builderthread.py
+++ b/tools/buildman/builderthread.py
@@ -7,6 +7,7 @@ import errno
 import glob
 import os
 import shutil
+import sys
 import threading
 
 import command
@@ -27,6 +28,9 @@ def Mkdir(dirname, parents = False):
             os.mkdir(dirname)
     except OSError as err:
         if err.errno == errno.EEXIST:
+            if os.path.realpath('.') == os.path.realpath(dirname):
+                print "Cannot create the current working directory '%s'!" % dirname
+                sys.exit(1)
             pass
         else:
             raise
-- 
2.1.4