From 9f575c37738eb273dbf89f37197c8880b80188e2 Mon Sep 17 00:00:00 2001
From: telyn <telyn@bytemark.co.uk>
Date: Fri, 23 Nov 2018 16:47:58 +0000
Subject: [PATCH] oh yeah actually include the ConcatFlags function

---
 cmd/bytemark/cliutil/concat_flags.go | 21 +++++++++++++++++++++
 1 file changed, 21 insertions(+)
 create mode 100644 cmd/bytemark/cliutil/concat_flags.go

diff --git a/cmd/bytemark/cliutil/concat_flags.go b/cmd/bytemark/cliutil/concat_flags.go
new file mode 100644
index 00000000..73baa690
--- /dev/null
+++ b/cmd/bytemark/cliutil/concat_flags.go
@@ -0,0 +1,21 @@
+package cliutil
+
+import (
+	"github.com/urfave/cli"
+)
+
+// ConcatFlags combines multiple slices of flags together without modification
+func ConcatFlags(flagSets ...[]cli.Flag) (res []cli.Flag) {
+	// saves us re-allocating each time.. Probably doesn't save a lot of
+	// memory/GC time in real life but eh. Feels good to be efficient.
+	totalLen := 0
+	for i := range flagSets {
+		totalLen += len(flagSets[i])
+	}
+	res = make([]cli.Flag, 0, totalLen)
+
+	for i := range flagSets {
+		res = append(res, flagSets[i]...)
+	}
+	return
+}