add has_flag function

Author: devy

functions/index.sh

@@ -2,6 +2,7 @@
 source $dotfile_dir/functions/shared/validators.sh
 
 source $dotfile_dir/functions/shared/join_args.sh
+source $dotfile_dir/functions/shared/has_flag.sh
 
 # Barrel file for functions
 source $dotfile_dir/functions/localhost.sh

functions/shared/has_flag.sh

@@ -0,0 +1,26 @@
+# Helper function to determine if a bash function contains a flag
+has_flag() {
+  local flag="$1"
+  shift
+
+  for arg in "$@"; do
+    if [ "$arg" = "$flag" ]; then
+      return 0 # found
+    fi
+  done
+
+  return 1 # not found
+}
+
+# Helper function to strip flags from args
+strip_flags() {
+  local result=()
+
+  for arg in "$@"; do
+    if [[ "$arg" != -* ]]; then
+      result+=("$arg")
+    fi
+  done
+
+  echo "${result[@]}"
+}