added function to validate a git repo directory

functions

@@ -253,6 +253,7 @@ box-light(){
  box-singlechar(){
   set_borders "$borderchar" "$borderchar" "$borderchar" "$borderchar" "$borderchar" "$borderchar" "$borderchar" "$borderchar" "-"
 }
+
  set-boxtype(){
   case $boxtype in 
     norm)   box-norm ;;
@@ -602,6 +603,22 @@ run-from-url(){
   return $ec
 }
 
+check-git-repository(){
+  repodir=${1:-$rundir}
+  if [ -z $repodir ] ; then
+    warn "check-git-repository() Incorrect usage. Usage: check-git-repository </path/to/dir>"
+    return 2
+  fi
+  if git -C "$repodir" rev-parse --is-inside-work-tree >/dev/null 2>&1; then
+    echo "Directory '$repodir' is a valid Git repository."
+    return 0
+    # Your script logic here
+  else
+    echo "Directory '$repodir' is not a valid Git repository"
+    return 1
+  fi
+}
+
 # fancy script exits
 
 ctrl_c(){