From 151a54703cbab18031e692bd58dbda7ab2d1c9f9 Mon Sep 17 00:00:00 2001
From: Stoiko Ivanov <s.ivanov@proxmox.com>
Date: Fri, 11 Feb 2022 16:15:41 +0100
Subject: [PATCH] proxmox-boot: return empty if file does not exist in
 get_first_line
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makes using this helper shorter in most cases

Signed-off-by: Stoiko Ivanov <s.ivanov@proxmox.com>
Reviewed-by: Fabian Grünbichler <f.gruenbichler@proxmox.com>
Tested-by: Fabian Grünbichler <f.gruenbichler@proxmox.com>
Signed-off-by: Thomas Lamprecht <t.lamprecht@proxmox.com>
---
 proxmox-boot/functions | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/proxmox-boot/functions b/proxmox-boot/functions
index 4515a2d..27da363 100755
--- a/proxmox-boot/functions
+++ b/proxmox-boot/functions
@@ -104,6 +104,11 @@ loop_esp_list() {
 
 get_first_line() {
 	file="$1"
+	if [ ! -e  "$file" ]; then
+	    echo ""
+	    return
+	fi
+
 	while IFS= read -r line || [ -n "$line" ]; do
 		break
 	done < "${file}"