From 31760bb5a146b2d3fabc91eec6a9bb18d305f977 Mon Sep 17 00:00:00 2001
From: rsteube <rsteube@users.noreply.github.com>
Date: Fri, 1 Sep 2023 15:44:27 +0200
Subject: [PATCH] command: support persistent flag

---
 pkg/command/command.go | 15 ++++++++++++---
 pkg/command/flag.go    |  1 +
 2 files changed, 13 insertions(+), 3 deletions(-)

diff --git a/pkg/command/command.go b/pkg/command/command.go
index d42cf0d..9aa173c 100644
--- a/pkg/command/command.go
+++ b/pkg/command/command.go
@@ -22,8 +22,17 @@ type Command struct {
 }
 
 func (c *Command) AddFlag(f Flag) {
-	if c.Flags == nil {
-		c.Flags = make(map[string]string)
+	switch {
+	case f.Persistent:
+		if c.PersistentFlags == nil {
+			c.PersistentFlags = make(map[string]string)
+		}
+		c.PersistentFlags[f.format()] = f.Usage
+
+	default:
+		if c.Flags == nil {
+			c.Flags = make(map[string]string)
+		}
+		c.Flags[f.format()] = f.Usage
 	}
-	c.Flags[f.format()] = f.Usage
 }
diff --git a/pkg/command/flag.go b/pkg/command/flag.go
index 982fbf3..e66fe77 100644
--- a/pkg/command/flag.go
+++ b/pkg/command/flag.go
@@ -9,6 +9,7 @@ type Flag struct {
 	Value      bool
 	Hidden     bool
 	Required   bool
+	Persistent bool
 }
 
 func (f Flag) format() string {