feat(utils.sh): 添加密码输入功能

utils.sh

@@ -56,7 +56,7 @@ confirm_action() {
 }
 
 command_exists() {
-    command -v "$@" >/dev/null 2>&1;
+    command -v "$@" >/dev/null 2>&1
 }
 
 pkg_install() {
@@ -69,6 +69,25 @@ pkg_install() {
     fi
 }
 
+read_password() {
+    echo -n "Password: "
+    password=""
+    while IFS= read -r -s -n1 char; do
+        if [[ $char == $'\0' ]]; then
+            break
+        elif [[ $char == $'\177' ]]; then
+            if [ -n "$password" ]; then
+                password=${password%?}
+                echo -ne "\b \b"
+            fi
+        else
+            password+="$char"
+            echo -n "*"
+        fi
+    done
+    echo
+}
+
 # ============================================================
 
 check_internet_access