Add files

setup.sh

@@ -1,24 +1,11 @@
 #!/bin/bash
 
-has_pip() {
-    command -v pip >/dev/null 2>&1
+install_dependency() {
+    pip show "$1" >/dev/null 2>&1 || pip install "$1"
 }
 
-check_and_install_dependency() {
-    if ! pip show "$1" >/dev/null 2>&1; then
-        pip install "$1"
-    fi
-}
-
-install_dependencies() {
-    if ! has_pip; then
-        echo "pip is not installed"
-        return
-    fi
-
-    check_and_install_dependency 'requests'
-    check_and_install_dependency 'qrcode'
-    check_and_install_dependency 'Pillow'
-}
+command -v pip >/dev/null 2>&1 || { echo "pip is not installed"; return; }
 
-install_dependencies
+install_dependency 'requests'
+install_dependency 'qrcode'
+install_dependency 'Pillow'