Imporved `command_exist()` to check the parameters. (#9193)

- Check if parameter exists and return error explicitly. Because the `commend -v` does not generate an error even if the parameter is null.

Signed-off-by: Sung-Jae Lee <sj925.lee@samsung.com>

diff --git a/infra/packaging/res/tf2nnpkg b/infra/packaging/res/tf2nnpkg
index e1db6e8..c300eb8 100644 (file)
--- a/infra/packaging/res/tf2nnpkg
+++ b/infra/packaging/res/tf2nnpkg
@@ -5,6 +5,9 @@ set -e
 ROOT="$(cd "$(dirname "${BASH_SOURCE[0]}")/.." && pwd)"
 
 command_exists() {
+  if [ "$#" -le 0 ]; then
+    return 1
+  fi
   command -v "$@" > /dev/null 2>&1
 }