From ddb4f1c8f8653f4c579f0a8da783f4a1eff20761 Mon Sep 17 00:00:00 2001
From: Peng Ding <pding.dp@foxmail.com>
Date: Mon, 20 Jan 2025 05:38:50 -0600
Subject: [PATCH] fix compatibility issue with sh.

---
 supplemental/scripts/install-agent.sh | 9 ++++++---
 supplemental/scripts/install-hub.sh   | 7 +++++--
 2 files changed, 11 insertions(+), 5 deletions(-)

diff --git a/supplemental/scripts/install-agent.sh b/supplemental/scripts/install-agent.sh
index c654cea..f9caa4e 100755
--- a/supplemental/scripts/install-agent.sh
+++ b/supplemental/scripts/install-agent.sh
@@ -10,8 +10,11 @@ is_openwrt() {
 
 # Function to ensure the proxy URL ends with a /
 ensure_trailing_slash() {
-  if [ -n "$1" ] && [ "${1: -1}" != "/" ]; then
-    echo "$1/"
+  if [ -n "$1" ]; then
+    case "$1" in
+    */) echo "$1" ;;
+    *) echo "$1/" ;;
+    esac
   else
     echo "$1"
   fi
@@ -23,7 +26,7 @@ UNINSTALL=false
 CHINA_MAINLAND=false
 GITHUB_URL="https://github.com"
 GITHUB_API_URL="https://api.github.com"
-GITHUB_PROXY_URL="https://ghfast.top/"  # Default proxy URL
+GITHUB_PROXY_URL="https://ghfast.top/" # Default proxy URL
 KEY=""
 
 # Check for help flag first
diff --git a/supplemental/scripts/install-hub.sh b/supplemental/scripts/install-hub.sh
index 7df1727..eb71655 100755
--- a/supplemental/scripts/install-hub.sh
+++ b/supplemental/scripts/install-hub.sh
@@ -19,8 +19,11 @@ GITHUB_PROXY_URL="https://ghfast.top/" # Default proxy URL
 
 # Function to ensure the proxy URL ends with a /
 ensure_trailing_slash() {
-  if [ -n "$1" ] && [ "${1: -1}" != "/" ]; then
-    echo "$1/"
+  if [ -n "$1" ]; then
+    case "$1" in
+    */) echo "$1" ;;
+    *) echo "$1/" ;;
+    esac
   else
     echo "$1"
   fi