From 0a78be8aeb835f903222b7fe8372b432700d5919 Mon Sep 17 00:00:00 2001
From: KwadFan <romacron@gmail.com>
Date: Tue, 19 Oct 2021 21:22:24 +0200
Subject: [PATCH 1/2] Added two 'QoL' funtions to common.sh *
 check_install_pkgs - check if pkgs is installed if not installs it. *
 apt_update_skip - Skips 'apt update' if cache not older than one Hour

---
 src/common.sh | 38 ++++++++++++++++++++++++++++++++++++++
 1 file changed, 38 insertions(+)

diff --git a/src/common.sh b/src/common.sh
index 870de36e..03f9cb0e 100755
--- a/src/common.sh
+++ b/src/common.sh
@@ -398,6 +398,20 @@ function minimize_ext() {
   fi
 }
 
+# Skip apt update if Cache not older than 1 Hour.
+function apt_update_skip() {
+    if [ -f "/var/cache/apt/pkgcache.bin" ] && \
+    [ "$(($(date +%s)-$(stat -c %Y /var/cache/apt/pkgcache.bin)))" -lt "3600" ];
+    then
+        echo_green "APT Cache needs no update! [SKIPPED]"
+    else
+        # force update
+        echo_red "APT Cache needs to be updated!"
+        echo_green "Running 'apt update' ..."
+        apt update
+    fi
+}
+
 function is_installed(){
   # checks if a package is installed, returns 1 if installed and 0 if not.
   # usage: is_installed <package_name>
@@ -414,6 +428,30 @@ function is_in_apt(){
   fi
 }
 
+### Only install Packages if not installed.
+##  check_install_pkgs $MODULNAME_PKGS_VAR (Replace with your Variable set in config file)
+function check_install_pkgs() {
+  ## Build Array from Var
+  local missing_pkgs
+  for dep in "$@"; do
+    # if in apt cache and not installed add to array
+    if [ $(is_in_apt ${dep}) -eq 1 ] && [ $(is_installed ${dep}) -ne 1 ]; then
+      missing_pkgs+="${dep}"
+    else
+    # if not in apt cache
+      echo_red "Missing Package ${dep} not found in Apt Repository. [SKIPPED]"
+    fi 
+  done
+  # if missing pkgs install missing else skip that.
+  if [ "${#missing_pkgs[@]}" -ne 0 ]; then
+      echo_red "${#missing_pkgs[@]} missing Packages..."
+      echo_green "Installing ${missing_pkgs[@]}"
+      apt install --yes "${missing_pkgs[@]}"
+  else
+      echo_green "No Dependencies missing... [SKIPPED]"
+  fi
+}
+
 function remove_if_installed(){
   remove_extra_list=""
   for package in "$1"

From 8ef84eba299f9522da35f3b34e2890ba08bb9766 Mon Sep 17 00:00:00 2001
From: KwadFan <romacron@gmail.com>
Date: Wed, 20 Oct 2021 11:52:14 +0200
Subject: [PATCH 2/2] Fixed Typo in common.sh Forgot to set missing_pkgs
 Variable to an Array

---
 src/common.sh | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/src/common.sh b/src/common.sh
index 03f9cb0e..c31de1a1 100755
--- a/src/common.sh
+++ b/src/common.sh
@@ -436,7 +436,7 @@ function check_install_pkgs() {
   for dep in "$@"; do
     # if in apt cache and not installed add to array
     if [ $(is_in_apt ${dep}) -eq 1 ] && [ $(is_installed ${dep}) -ne 1 ]; then
-      missing_pkgs+="${dep}"
+      missing_pkgs+=("${dep}")
     else
     # if not in apt cache
       echo_red "Missing Package ${dep} not found in Apt Repository. [SKIPPED]"