From 57320ad95839fae3a608ed13ebefd381b8940d04 Mon Sep 17 00:00:00 2001
From: Edi Septriyanto <me@masedi.net>
Date: Wed, 11 Aug 2021 15:13:22 +0700
Subject: [PATCH] Add pre check required packages

---
 lib/lemper-create.sh | 14 ++++++++++----
 1 file changed, 10 insertions(+), 4 deletions(-)

diff --git a/lib/lemper-create.sh b/lib/lemper-create.sh
index 515d87f..4eb262b 100755
--- a/lib/lemper-create.sh
+++ b/lib/lemper-create.sh
@@ -100,13 +100,19 @@ if [ "$(id -u)" -ne 0 ]; then
 fi
 
 # Check pre-requisite packages.
-if [[ ! -f $(command -v unzip) || ! -f $(command -v git) || ! -f $(command -v rsync) ]]; then
-    error "${APP_NAME^} requires git, rsync, unzip, wget, please install it first!"
-    echo "help: sudo apt install git rsync unzip wget"
+REQUIRED_PACKAGES=("curl" "git" "rsync" "unzip" "wget")
+for CMD in "${REQUIRED_PACKAGES[@]}"; do
+    if ! [[ -x "$(command -v "${CMD}")" ]]; then
+        NO_PACKAGES+=("${CMD}")
+    fi
+done
+if [[ ${#NO_PACKAGES[@]} -gt 0 ]]; then
+    printf -v NO_PACKAGES_STR '%s, ' "${NO_PACKAGES[@]}"
+    error "${APP_NAME^} requires: ${NO_PACKAGES_STR%, }, please install it first!"
+    echo "help: run 'sudo apt-get install ${NO_PACKAGES[*]}'"
     exit 1
 fi
 
-
 ##
 # Main Functions
 #