From 410cd9cfc46194d6c053b498ad7995d71b70db5c Mon Sep 17 00:00:00 2001
From: Norman Feske <norman.feske@genode-labs.com>
Date: Thu, 6 Jan 2022 22:48:16 +0100
Subject: [PATCH] run: avoid superfluous call of depot auto update

If only versioned archives are supplied to a depot function like
'create_tar_from_depot_binaries', the depot/create tool is called
with zero arguments, resulting in a help message. The patch detects
this case and skips the call.
---
 tool/run/depot.inc | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/tool/run/depot.inc b/tool/run/depot.inc
index 79feadbc30..59ec4b4023 100644
--- a/tool/run/depot.inc
+++ b/tool/run/depot.inc
@@ -209,6 +209,9 @@ proc _depot_auto_update { archives } {
 	# remove duplicates
 	set archives_to_create [lsort -unique $archives_to_create]
 
+	if {[llength $archives_to_create] == 0} {
+		return }
+
 	set    cmd "[genode_dir]/tool/depot/create $archives_to_create "
 	append cmd "CROSS_DEV_PREFIX=[cross_dev_prefix] "
 	append cmd "DEPOT_DIR=[depot_dir] "