BaseTools: remove unnecessary calls of os.exist

REF: https://bugzilla.tianocore.org/show_bug.cgi?id=2101

This patch is going to remove unnecessary calls
of os.exist()

Cc: Liming Gao <liming.gao@intel.com>
Signed-off-by: Bob Feng <bob.c.feng@intel.com>
Reviewed-by: Liming Gao <liming.gao@intel.com>

1 files changed, 3 insertions, 1 deletions

diff --git a/BaseTools/Source/Python/AutoGen/GenMake.py b/BaseTools/Source/Python/AutoGen/GenMake.py
index cda1fbe610..940136248f 100755
--- a/BaseTools/Source/Python/AutoGen/GenMake.py
+++ b/BaseTools/Source/Python/AutoGen/GenMake.py
@@ -636,11 +636,13 @@ cleanlib:
         while not found and os.sep in package_rel_dir:

             index = package_rel_dir.index(os.sep)

             current_dir = mws.join(current_dir, package_rel_dir[:index])

-            if os.path.exists(current_dir):

+            try:

                 for fl in os.listdir(current_dir):

                     if fl.endswith('.dec'):

                         found = True

                         break

+            except:

+                EdkLogger.error('build', FILE_NOT_FOUND, "WORKSPACE does not exist.")

             package_rel_dir = package_rel_dir[index + 1:]

 

         MakefileTemplateDict = {