From 9201c89238651c82b5957798bb581e11af85d800 Mon Sep 17 00:00:00 2001
From: Christoph <ckubu@oopen.de>
Date: Mon, 17 Oct 2022 00:20:38 +0200
Subject: [PATCH] Add scipt 'is_empty_dir.sh'.

---
 snippets/is_empty_dir.sh | 69 ++++++++++++++++++++++++++++++++++++++++
 1 file changed, 69 insertions(+)
 create mode 100755 snippets/is_empty_dir.sh

diff --git a/snippets/is_empty_dir.sh b/snippets/is_empty_dir.sh
new file mode 100755
index 0000000..171e163
--- /dev/null
+++ b/snippets/is_empty_dir.sh
@@ -0,0 +1,69 @@
+#!/usr/bin/env bash
+
+# Set the variable for bash behavior
+shopt -s nullglob
+shopt -s dotglob
+
+# Die if dir name provided on command line
+[[ $# -eq 0 ]] && { echo "" ; echo "   Usage: $0 dir-name"; echo "" ; exit 1; }
+
+# Check for empty files using arrays
+chk_files=(${1}/*)
+
+echo ""
+(( ${#chk_files[*]} )) && echo "   Files found in '$1' directory." || echo "   Directory '$1' is empty."
+echo ""
+
+# Unset the variable  for bash behavior
+shopt -u nullglob
+shopt -u dotglob
+
+
+# ---------------------------------------------
+
+# Check if directory is empty
+#
+is_empty_directory () {
+
+   # Set the variable for bash behavior
+   shopt -s nullglob
+   shopt -s dotglob
+
+   # Die if no dir name was provided on command line
+   if [[ $# -eq 0 ]]; then
+
+      echo ""
+      echo "   [ Error ]: Wrong call of function 'is_empty_directory ()'.
+
+               Usage: is_empty_directory <dir-name>"
+      echo ""
+      return 1
+   fi
+
+   chk_empty_dir=(${1}/*)
+
+   # Unset the variable  for bash behavior
+   shopt -u nullglob
+   shopt -u dotglob
+
+   if (( ${#chk_empty_dir[*]} )) ; then
+
+      # Files found in $1 directory (send false)
+      return 1
+   else
+
+      # Directory $1 is empty. (send true)
+      return 0
+   fi
+
+}
+
+echo ""
+if $(is_empty_directory "${1}") ; then
+   echo "   Directory '$1' is empty."
+else
+   echo "   Files found in '$1' directory."
+fi
+echo ""
+
+exit 0