zsh:autoload: Load wrapper only if command exists

.config/zsh/zshrc.d/00-autoload.zsh

@@ -9,8 +9,21 @@ autoload -Uz run-help run-help-git zmv
 
 # Load autoloadable functions
 if [[ -d "$ZDOTDIR/autoload" ]]; then
-	# Include all subdirectories
+	# Include all wrapper scripts if their wrapped command exists
+	d="$ZDOTDIR/autoload/wrapper"
+	if [[ -d "$d" ]]; then
+		fpath=("$d" $fpath)
+		for f in "$d"/[^_.]*(.xN:t); do
+			(( $+commands[$f] )) || continue
+			autoload -Uz -- "$f"
+		done
+	fi
+
+	# Include all other subdirectories
 	for d in "$ZDOTDIR/autoload/"*(/N); do
+		# EXTENDED_GLOB is not yet set, so we have to exclude manually
+		[[ ${d:t} != wrapper ]] || continue
+
 		fpath=("$d" $fpath)
 		autoload -Uz -- "" "$d"/[^_.]*(.xN:t)
 	done