From 3c5688012f9ca29d2961103a56bfcfad607bd4c2 Mon Sep 17 00:00:00 2001
From: Alexander <alexxycarlsson@gmail.com>
Date: Fri, 23 Feb 2024 19:20:39 +0100
Subject: [PATCH] refactor

---
 .../OPTIONS/app_net_ready/app_net_ready.sh    |  6 ++--
 RESOURCES/OPTIONS/banner/banner.sh            | 19 ++--------
 RESOURCES/OPTIONS/bluetooth/bluetooth.sh      | 32 +++++------------
 .../OPTIONS/boot_resource/boot_resource.sh    | 11 ++----
 RESOURCES/OPTIONS/camera/camera.sh            | 36 +++----------------
 .../OPTIONS/custom_update/custom_update.sh    |  7 +---
 RESOURCES/OPTIONS/fswebcam/fswebcam.sh        | 20 ++---------
 .../kobra_unleashed/kobra_unleashed.sh        | 26 ++++++--------
 RESOURCES/OPTIONS/opkg/opkg.sh                | 25 ++++---------
 RESOURCES/OPTIONS/python/python.sh            | 21 +++--------
 RESOURCES/OPTIONS/root_access/root_access.sh  | 17 ++-------
 RESOURCES/OPTIONS/ssh/ssh.sh                  | 25 ++++---------
 .../OPTIONS/startup_script/startup_script.sh  | 29 +++++----------
 RESOURCES/OPTIONS/uart/uart.sh                | 19 ++--------
 14 files changed, 67 insertions(+), 226 deletions(-)

diff --git a/RESOURCES/OPTIONS/app_net_ready/app_net_ready.sh b/RESOURCES/OPTIONS/app_net_ready/app_net_ready.sh
index 572367c..42c9bed 100755
--- a/RESOURCES/OPTIONS/app_net_ready/app_net_ready.sh
+++ b/RESOURCES/OPTIONS/app_net_ready/app_net_ready.sh
@@ -22,14 +22,14 @@ if [ ! -d "$project_root" ]; then
 fi
 
 # check the target folder
-target_folder="$project_root/unpacked/squashfs-root"
+target_folder="$ROOTFS_DIR"
 if [ ! -d "$target_folder" ]; then
   echo -e "${RED}ERROR: Cannot find the target folder '$target_folder' ${NC}"
   exit 4
 fi
 
 # try to find out the app version (like app_ver="309")
-def_target="$project_root/unpacked/squashfs-root/app/app"
+def_target="$ROOTFS_DIR/app/app"
 app_ver=$("$app_version_tool" "$def_target")
 if [ $? != 0 ]; then
   echo -e "${RED}ERROR: Cannot find the app version ${NC}"
@@ -44,7 +44,7 @@ if [ $? != 0 ]; then
 fi
 
 # find if the selected setting file exists
-settings_file="$project_root/RESOURCES/OPTIONS/app_net_ready/$settings/${app_ver}.${app_model}"
+settings_file="$OPTIONS_DIR/app_net_ready/$settings/${app_ver}.${app_model}"
 if [ ! -f "$settings_file" ]; then
   echo -e "${RED}ERROR: Unsupported model and version! Cannot find the settings file '$settings_file' ${NC}"
   exit 7
diff --git a/RESOURCES/OPTIONS/banner/banner.sh b/RESOURCES/OPTIONS/banner/banner.sh
index 26f0d21..9912893 100755
--- a/RESOURCES/OPTIONS/banner/banner.sh
+++ b/RESOURCES/OPTIONS/banner/banner.sh
@@ -1,10 +1,5 @@
 #!/bin/bash
 
-# global definitions:
-RED='\033[0;31m'
-GREEN='\033[0;32m'
-NC='\033[0m'
-
 # check the parameters
 if [ $# != 2 ]; then
     echo "usage : $0 <project_root> <banner_file>"
@@ -17,15 +12,7 @@ banner_file="$2"
 # Echo the banner into $project_root/unpacked/etc/banner
 
 # Check the required tools
-TOOL_LIST="cat"
-for tool_name in $TOOL_LIST; do
-    echo "Checking tool: $tool_name"
-    tool_path=$(which "$tool_name")
-    if [ -z "$tool_path" ]; then
-        echo -e "${RED}ERROR: Missing tool '$tool_name' ${NC}"
-        exit 1
-    fi
-done
+check_tools "cat"
 
 # Check the project root folder
 if [ ! -d "$project_root" ]; then
@@ -34,13 +21,13 @@ if [ ! -d "$project_root" ]; then
 fi
 
 # Check the banner exists
-if [ ! -f "$project_root/RESOURCES/OPTIONS/$banner_file/$banner_file" ]; then
+if [ ! -f "$OPTIONS_DIR/$banner_file/$banner_file" ]; then
     echo -e "${RED}ERROR: Cannot find the file '$banner_file' ${NC}"
     exit 3
 fi
 
 # Overwrite the banner file with ./banner if error then exit
-cat "$project_root/RESOURCES/OPTIONS/$banner_file/$banner_file" >"$project_root/unpacked/squashfs-root/etc/banner"
+cat "$OPTIONS_DIR/$banner_file/$banner_file" >"$ROOTFS_DIR/etc/banner"
 if [ $? != 0 ]; then
     echo -e "${RED}ERROR: Cannot overwrite the banner file ${NC}"
     exit 4
diff --git a/RESOURCES/OPTIONS/bluetooth/bluetooth.sh b/RESOURCES/OPTIONS/bluetooth/bluetooth.sh
index dacdae9..7cfed68 100755
--- a/RESOURCES/OPTIONS/bluetooth/bluetooth.sh
+++ b/RESOURCES/OPTIONS/bluetooth/bluetooth.sh
@@ -1,11 +1,5 @@
 #!/bin/bash
 
-# global definitions:
-RED='\033[0;31m'
-GREEN='\033[0;32m'
-YELLOW='\033[0;33m'
-NC='\033[0m'
-
 # check the parameters
 if [ $# != 2 ]; then
     echo "usage : $0 <project_root>"
@@ -15,15 +9,7 @@ fi
 project_root="$1"
 
 # check the required tools
-TOOL_LIST="rm"
-for tool_name in $TOOL_LIST; do
-    echo "Checking tool: $tool_name"
-    tool_path=$(which "$tool_name")
-    if [ -z "$tool_path" ]; then
-        echo -e "${RED}ERROR: Missing tool '$tool_name' ${NC}"
-        exit 1
-    fi
-done
+check_tools "rm"
 
 # check the project root folder
 if [ ! -d "$project_root" ]; then
@@ -52,18 +38,18 @@ folders=(
 # Remove the folders and files
 # Check if folder or file and remove it
 for folder in "${folders[@]}"; do
-    if [ -d "$project_root/unpacked/squashfs-root/$folder" ]; then
-        echo "Removing folder: $project_root/unpacked/squashfs-root/$folder"
-        rm -rf "$project_root/unpacked/squashfs-root/$folder"
+    if [ -d "$ROOTFS_DIR/$folder" ]; then
+        echo "Removing folder: $ROOTFS_DIR/$folder"
+        rm -rf "$ROOTFS_DIR/$folder"
         if [ $? -ne 0 ]; then
-            echo -e "${RED}ERROR: Failed to remove folder: $project_root/unpacked/squashfs-root/$folder ${NC}"
+            echo -e "${RED}ERROR: Failed to remove folder: $ROOTFS_DIR/$folder ${NC}"
             exit 3
         fi
-    elif [ -f "$project_root/unpacked/squashfs-root/$folder" ]; then
-        echo "Removing file: $project_root/unpacked/squashfs-root/$folder"
-        rm -f "$project_root/unpacked/squashfs-root/$folder"
+    elif [ -f "$ROOTFS_DIR/$folder" ]; then
+        echo "Removing file: $ROOTFS_DIR/$folder"
+        rm -f "$ROOTFS_DIR/$folder"
         if [ $? -ne 0 ]; then
-            echo -e "${RED}ERROR: Failed to remove file: $project_root/unpacked/squashfs-root/$folder ${NC}"
+            echo -e "${RED}ERROR: Failed to remove file: $ROOTFS_DIR/$folder ${NC}"
             exit 3
         fi
     fi
diff --git a/RESOURCES/OPTIONS/boot_resource/boot_resource.sh b/RESOURCES/OPTIONS/boot_resource/boot_resource.sh
index 4859210..e50796c 100755
--- a/RESOURCES/OPTIONS/boot_resource/boot_resource.sh
+++ b/RESOURCES/OPTIONS/boot_resource/boot_resource.sh
@@ -1,10 +1,5 @@
 #!/bin/bash
 
-# global definitions:
-RED='\033[0;31m'
-GREEN='\033[0;32m'
-NC='\033[0m'
-
 # check the parameters
 if [ $# != 2 ]; then
   echo "usage : $0 <project_root> <boot_resource>"
@@ -21,21 +16,21 @@ if [ ! -d "$project_root" ]; then
 fi
 
 # check the selected boot resource folder
-boot_resource_folder="$project_root/RESOURCES/OPTIONS/boot_resource/$boot_resource"
+boot_resource_folder="$OPTIONS_DIR/boot_resource/$boot_resource"
 if [ ! -d "$boot_resource_folder" ]; then
   echo -e "${RED}ERROR: Cannot find the folder '$boot_resource_folder' ${NC}"
   exit 3
 fi
 
 # check the selected boot resource file
-boot_resource_file="$project_root/RESOURCES/OPTIONS/boot_resource/$boot_resource/boot-resource"
+boot_resource_file="$boot_resource_folder/boot-resource"
 if [ ! -f "$boot_resource_file" ]; then
   echo -e "${RED}ERROR: Cannot find the folder '$boot_resource_file'\nPlease use 'sudo ./process.sh' to create the 'boot_resource' file from the source folder ${NC}"
   exit 3
 fi
 
 # check the target folder
-target_folder="$project_root/unpacked"
+target_folder="$ROOTFS_DIR"
 if [ ! -d "$target_folder" ]; then
   echo -e "${RED}ERROR: Cannot find the target folder '$target_folder' ${NC}"
   exit 4
diff --git a/RESOURCES/OPTIONS/camera/camera.sh b/RESOURCES/OPTIONS/camera/camera.sh
index 2fa7596..87184ef 100755
--- a/RESOURCES/OPTIONS/camera/camera.sh
+++ b/RESOURCES/OPTIONS/camera/camera.sh
@@ -1,10 +1,5 @@
 #!/bin/bash
 
-# global definitions:
-RED='\033[0;31m'
-GREEN='\033[0;32m'
-NC='\033[0m'
-
 # check the parameters
 if [ $# != 2 ]; then
   echo "usage : $0 <project_root> <webcam_package>"
@@ -22,28 +17,7 @@ if [ "$package_action" == "run" ]; then
   auto_start="Y"
 fi
 
-# check the required tools
-app_version_tool=$(which app_version.sh)
-app_model_tool=$(which app_model.sh)
-TOOL_LIST="unzip app_version.sh app_model.sh dd printf"
-for tool_name in $TOOL_LIST; do
-  echo "Checking tool: $tool_name"
-  tool_path=$(which "$tool_name")
-  if [ -z "$tool_path" ]; then
-    local_tool_path="$project_root/TOOLS/$tool_name"
-    if [ ! -f "$local_tool_path" ]; then
-      echo -e "${RED}ERROR: Missing tool '$tool_name' ${NC}"
-      exit 2
-    else
-      if [ "$tool_name" == "app_version.sh" ]; then
-        app_version_tool="$local_tool_path"
-      fi
-      if [ "$tool_name" == "app_model.sh" ]; then
-        app_model_tool="$local_tool_path"
-      fi
-    fi
-  fi
-done
+check_tools "unzip app_version.sh app_model.sh dd printf"
 
 # check the project root folder
 if [ ! -d "$project_root" ]; then
@@ -52,7 +26,7 @@ if [ ! -d "$project_root" ]; then
 fi
 
 # check the webcam package folder
-webcam_package_folder="${project_root}/RESOURCES/OPTIONS/camera/${package_name}"
+webcam_package_folder="$OPTIONS_DIR/camera/$package_name"
 if [ ! -d "$webcam_package_folder" ]; then
   echo -e "${RED}ERROR: Cannot find the folder '$webcam_package_folder' ${NC}"
   exit 4
@@ -66,7 +40,7 @@ if [ ! -f "$webcam_package_file" ]; then
 fi
 
 # check the target folder
-target_folder="$project_root/unpacked/squashfs-root"
+target_folder="$ROOTFS_DIR"
 if [ ! -d "$target_folder" ]; then
   echo -e "${RED}ERROR: Cannot find the target folder '$target_folder' ${NC}"
   exit 6
@@ -80,11 +54,11 @@ cd "$current_folder" || exit 8
 
 if [ "$auto_start" == "N" ]; then
   # auto start not requested, remove the auto start
-  rm -f "$project_root/unpacked/squashfs-root/opt/etc/init.d/S55camera"
+  rm -f "$ROOTFS_DIR/opt/etc/init.d/S55camera"
 fi
 
 # try to find out the app version (like app_ver="309")
-def_target="$project_root/unpacked/squashfs-root/app/app"
+def_target="$ROOTFS_DIR/app/app"
 app_ver=$("$app_version_tool" "$def_target")
 if [ $? != 0 ]; then
   echo -e "${RED}ERROR: Cannot find the app version ${NC}"
diff --git a/RESOURCES/OPTIONS/custom_update/custom_update.sh b/RESOURCES/OPTIONS/custom_update/custom_update.sh
index 1a82afa..f653094 100755
--- a/RESOURCES/OPTIONS/custom_update/custom_update.sh
+++ b/RESOURCES/OPTIONS/custom_update/custom_update.sh
@@ -1,10 +1,5 @@
 #!/bin/bash
 
-# global definitions:
-RED='\033[0;31m'
-GREEN='\033[0;32m'
-NC='\033[0m'
-
 # check the parameters
 if [ $# != 2 ]; then
   echo "usage : $0 <project_root> <public_key>"
@@ -27,7 +22,7 @@ if [ ! -f "$public_key" ]; then
 fi
 
 # check the target folder
-target_folder="$project_root/unpacked/squashfs-root/etc"
+target_folder="$ROOTFS_DIR/etc"
 if [ ! -d "$target_folder" ]; then
   echo -e "${RED}ERROR: Cannot find the output folder '$target_folder' ${NC}"
   exit 4
diff --git a/RESOURCES/OPTIONS/fswebcam/fswebcam.sh b/RESOURCES/OPTIONS/fswebcam/fswebcam.sh
index 37952c9..5586d11 100755
--- a/RESOURCES/OPTIONS/fswebcam/fswebcam.sh
+++ b/RESOURCES/OPTIONS/fswebcam/fswebcam.sh
@@ -1,10 +1,5 @@
 #!/bin/bash
 
-# global definitions:
-RED='\033[0;31m'
-GREEN='\033[0;32m'
-NC='\033[0m'
-
 # check the parameters
 if [ $# != 2 ]; then
   echo "usage : $0 <project_root> <fswebcam_package>"
@@ -14,16 +9,7 @@ fi
 project_root="$1"
 fswebcam_package="$2"
 
-# check the required tools
-TOOL_LIST="unzip sed"
-for tool_name in $TOOL_LIST; do
-  echo "Checking tool: $tool_name"
-  tool_path=$(which "$tool_name")
-  if [ -z "$tool_path" ]; then
-    echo -e "${RED}ERROR: Missing tool '$tool_name' ${NC}"
-    exit 1
-  fi
-done
+check_tools "unzip sed"
 
 # check the project root folder
 if [ ! -d "$project_root" ]; then
@@ -32,7 +18,7 @@ if [ ! -d "$project_root" ]; then
 fi
 
 # check the fswebcam package folder
-fswebcam_package_folder="${project_root}/RESOURCES/OPTIONS/fswebcam/${fswebcam_package}"
+fswebcam_package_folder="${OPTIONS_DIR}/fswebcam/${fswebcam_package}"
 if [ ! -d "$fswebcam_package_folder" ]; then
   echo -e "${RED}ERROR: Cannot find the folder '$fswebcam_package_folder' ${NC}"
   exit 4
@@ -46,7 +32,7 @@ if [ ! -f "$fswebcam_package_file" ]; then
 fi
 
 # check the target folder
-target_folder="$project_root/unpacked/squashfs-root"
+target_folder="$ROOTFS_DIR"
 if [ ! -d "$target_folder" ]; then
   echo -e "${RED}ERROR: Cannot find the target folder '$target_folder' ${NC}"
   exit 6
diff --git a/RESOURCES/OPTIONS/kobra_unleashed/kobra_unleashed.sh b/RESOURCES/OPTIONS/kobra_unleashed/kobra_unleashed.sh
index f966992..0384a3d 100755
--- a/RESOURCES/OPTIONS/kobra_unleashed/kobra_unleashed.sh
+++ b/RESOURCES/OPTIONS/kobra_unleashed/kobra_unleashed.sh
@@ -1,32 +1,28 @@
 #!/bin/bash
 
-RED='\033[0;31m'
-YELLOW='\033[1;33m'
-GREEN='\033[0;32m'
-NC='\033[0m'
-
 # default urls to be replaced
 mqtt_urls="mqtt-universe-test.anycubic.com mqtt-universe.anycubic.com mqtt-test.anycubic.com mqtt.anycubic.com"
 
+project_root="$1"
+
 # check the parameters
 if [ $# != 2 ]; then
   echo "usage : $0 <project_root> <mqtt_url>"
   exit 1
 fi
 
-def_target="$1/unpacked/squashfs-root/app/app"
+def_target="$ROOTFS_DIR/app/app"
+
 def_url="$2"
 
 # check the required tools
-TOOL_LIST="printf dd grep awk"
-for tool_name in $TOOL_LIST; do
-  echo "Checking tool: $tool_name"
-  tool_path=$(which "$tool_name")
-  if [ -z "$tool_path" ]; then
-    echo -e "${RED}ERROR: Missing tool '$tool_name' ${NC}"
-    exit 1
-  fi
-done
+check_tools "printf dd grep awk"
+
+# check the project root folder
+if [ ! -d "$project_root" ]; then
+  echo -e "${RED}ERROR: Cannot find the folder '$project_root' ${NC}"
+  exit 3
+fi
 
 # check the input file
 if [ ! -f "$def_target" ]; then
diff --git a/RESOURCES/OPTIONS/opkg/opkg.sh b/RESOURCES/OPTIONS/opkg/opkg.sh
index 50ad725..d17227e 100755
--- a/RESOURCES/OPTIONS/opkg/opkg.sh
+++ b/RESOURCES/OPTIONS/opkg/opkg.sh
@@ -1,10 +1,5 @@
 #!/bin/bash
 
-# global definitions:
-RED='\033[0;31m'
-GREEN='\033[0;32m'
-NC='\033[0m'
-
 # check the parameters
 if [ $# != 2 ]; then
   echo "usage : $0 <project_root> <opkg_package>"
@@ -15,15 +10,7 @@ project_root="$1"
 opkg_package="$2"
 
 # check the required tools
-TOOL_LIST="unzip grep sed"
-for tool_name in $TOOL_LIST; do
-  echo "Checking tool: $tool_name"
-  tool_path=$(which "$tool_name")
-  if [ -z "$tool_path" ]; then
-    echo -e "${RED}ERROR: Missing tool '$tool_name' ${NC}"
-    exit 1
-  fi
-done
+check_tools "unzip grep sed"
 
 # check the project root folder
 if [ ! -d "$project_root" ]; then
@@ -32,7 +19,7 @@ if [ ! -d "$project_root" ]; then
 fi
 
 # check the opkg package folder
-opkg_package_folder="${project_root}/RESOURCES/OPTIONS/opkg/${opkg_package}"
+opkg_package_folder="${OPTIONS_DIR}/opkg/${opkg_package}"
 if [ ! -d "$opkg_package_folder" ]; then
   echo -e "${RED}ERROR: Cannot find the folder '$opkg_package_folder' ${NC}"
   exit 4
@@ -46,7 +33,7 @@ if [ ! -f "$opkg_package_file" ]; then
 fi
 
 # check the target folder
-target_folder="$project_root/unpacked/squashfs-root"
+target_folder="$ROOTFS_DIR"
 if [ ! -d "$target_folder" ]; then
   echo -e "${RED}ERROR: Cannot find the target folder '$target_folder' ${NC}"
   exit 6
@@ -57,13 +44,13 @@ current_folder="$PWD"
 cd "$target_folder" || exit 7
 unzip -o "$opkg_package_file"
 # add "/opt/etc/init.d/rc.unslung start" to $project_root/unpacked/squashfs-root/etc/rc.local before the exit 0 line
-result=$(grep "/opt/etc/init.d/rc.unslung start" "$project_root/unpacked/squashfs-root/etc/rc.local")
+result=$(grep "/opt/etc/init.d/rc.unslung start" "$ROOTFS_DIR/etc/rc.local")
 if [ -z "$result" ]; then
   # add it only if not already done
-  sed -i '/exit 0/i /opt/etc/init.d/rc.unslung start' "$project_root/unpacked/squashfs-root/etc/rc.local"
+  sed -i '/exit 0/i /opt/etc/init.d/rc.unslung start' "$ROOTFS_DIR/etc/rc.local"
 fi
 # extend the PATH to $project_root/unpacked/squashfs-root/etc/profile
-sed -i 's#export PATH="/usr/sbin:/usr/bin:/sbin:/bin"#export PATH="/usr/sbin:/usr/bin:/sbin:/bin:/opt/sbin:/opt/bin:/usr/local/sbin:/usr/local/bin:/usr/sbin:/usr/bin"#' "$project_root/unpacked/squashfs-root/etc/profile"
+sed -i 's#export PATH="/usr/sbin:/usr/bin:/sbin:/bin"#export PATH="/usr/sbin:/usr/bin:/sbin:/bin:/opt/sbin:/opt/bin:/usr/local/sbin:/usr/local/bin:/usr/sbin:/usr/bin"#' "$ROOTFS_DIR/etc/profile"
 cd "$current_folder" || exit 8
 
 echo -e "${GREEN}SUCCESS: The '$opkg_package' opkg package has been installed ${NC}"
diff --git a/RESOURCES/OPTIONS/python/python.sh b/RESOURCES/OPTIONS/python/python.sh
index 88d1423..3bd3e4a 100755
--- a/RESOURCES/OPTIONS/python/python.sh
+++ b/RESOURCES/OPTIONS/python/python.sh
@@ -1,10 +1,5 @@
 #!/bin/bash
 
-# global definitions:
-RED='\033[0;31m'
-GREEN='\033[0;32m'
-NC='\033[0m'
-
 # check the parameters
 if [ $# != 2 ]; then
   echo "usage : $0 <project_root> <python_package>"
@@ -15,15 +10,7 @@ project_root="$1"
 python_package="$2"
 
 # check the required tools
-TOOL_LIST="unzip sed"
-for tool_name in $TOOL_LIST; do
-  echo "Checking tool: $tool_name"
-  tool_path=$(which "$tool_name")
-  if [ -z "$tool_path" ]; then
-    echo -e "${RED}ERROR: Missing tool '$tool_name' ${NC}"
-    exit 1
-  fi
-done
+check_tools "unzip sed"
 
 # check the project root folder
 if [ ! -d "$project_root" ]; then
@@ -32,7 +19,7 @@ if [ ! -d "$project_root" ]; then
 fi
 
 # check the python package folder
-python_package_folder="${project_root}/RESOURCES/OPTIONS/python/${python_package}"
+python_package_folder="${OPTIONS_DIR}/python/${python_package}"
 if [ ! -d "$python_package_folder" ]; then
   echo -e "${RED}ERROR: Cannot find the folder '$python_package_folder' ${NC}"
   exit 4
@@ -46,7 +33,7 @@ if [ ! -f "$python_package_file" ]; then
 fi
 
 # check the target folder
-target_folder="$project_root/unpacked/squashfs-root"
+target_folder="$ROOTFS_DIR"
 if [ ! -d "$target_folder" ]; then
   echo -e "${RED}ERROR: Cannot find the target folder '$target_folder' ${NC}"
   exit 6
@@ -57,7 +44,7 @@ current_folder="$PWD"
 cd "$target_folder" || exit 7
 unzip -o "$python_package_file"
 # extend the PATH to $project_root/unpacked/squashfs-root/etc/profile
-sed -i 's#export PATH="/usr/sbin:/usr/bin:/sbin:/bin"#export PATH="/usr/sbin:/usr/bin:/sbin:/bin:/opt/sbin:/opt/bin:/usr/local/sbin:/usr/local/bin:/usr/sbin:/usr/bin"#' "$project_root/unpacked/squashfs-root/etc/profile"
+sed -i 's#export PATH="/usr/sbin:/usr/bin:/sbin:/bin"#export PATH="/usr/sbin:/usr/bin:/sbin:/bin:/opt/sbin:/opt/bin:/usr/local/sbin:/usr/local/bin:/usr/sbin:/usr/bin"#' "$ROOTFS_DIR/etc/profile"
 cd "$current_folder" || exit 8
 
 echo -e "${GREEN}The python package has been successfully installed ${NC}"
diff --git a/RESOURCES/OPTIONS/root_access/root_access.sh b/RESOURCES/OPTIONS/root_access/root_access.sh
index e9adc07..b081202 100755
--- a/RESOURCES/OPTIONS/root_access/root_access.sh
+++ b/RESOURCES/OPTIONS/root_access/root_access.sh
@@ -1,10 +1,5 @@
 #!/bin/bash
 
-# global definitions:
-RED='\033[0;31m'
-GREEN='\033[0;32m'
-NC='\033[0m'
-
 # check the parameters
 if [ $# != 2 ]; then
   echo "usage : $0 <project_root> <password_hash>"
@@ -15,15 +10,7 @@ project_root="$1"
 password_hash="$2"
 
 # check the required tools
-TOOL_LIST="awk"
-for tool_name in $TOOL_LIST; do
-  echo "Checking tool: $tool_name"
-  tool_path=$(which "$tool_name")
-  if [ -z "$tool_path" ]; then
-    echo -e "${RED}ERROR: Missing tool '$tool_name' ${NC}"
-    exit 1
-  fi
-done
+check_tools "awk"
 
 # check the project root folder
 if [ ! -d "$project_root" ]; then
@@ -32,7 +19,7 @@ if [ ! -d "$project_root" ]; then
 fi
 
 # check the target file
-target_file="$project_root/unpacked/squashfs-root/etc/shadow"
+target_file="$ROOTFS_DIR/etc/shadow"
 if [ ! -f "$target_file" ]; then
   echo -e "${RED}ERROR: Cannot find the target file '$target_file' ${NC}"
   exit 3
diff --git a/RESOURCES/OPTIONS/ssh/ssh.sh b/RESOURCES/OPTIONS/ssh/ssh.sh
index 248ad47..fe67781 100755
--- a/RESOURCES/OPTIONS/ssh/ssh.sh
+++ b/RESOURCES/OPTIONS/ssh/ssh.sh
@@ -1,10 +1,5 @@
 #!/bin/bash
 
-# global definitions:
-RED='\033[0;31m'
-GREEN='\033[0;32m'
-NC='\033[0m'
-
 # check the parameters
 if [ $# != 2 ]; then
   echo "usage : $0 <project_root> <ssh_package>"
@@ -15,15 +10,7 @@ project_root="$1"
 ssh_package="$2"
 
 # check the required tools
-TOOL_LIST="unzip grep sed"
-for tool_name in $TOOL_LIST; do
-  echo "Checking tool: $tool_name"
-  tool_path=$(which "$tool_name")
-  if [ -z "$tool_path" ]; then
-    echo -e "${RED}ERROR: Missing tool '$tool_name' ${NC}"
-    exit 1
-  fi
-done
+check_tools "unzip grep sed"
 
 # check the project root folder
 if [ ! -d "$project_root" ]; then
@@ -32,7 +19,7 @@ if [ ! -d "$project_root" ]; then
 fi
 
 # check the ssh package folder
-ssh_package_folder="${project_root}/RESOURCES/OPTIONS/ssh/${ssh_package}"
+ssh_package_folder="$OPTIONS_DIR/ssh/${ssh_package}"
 if [ ! -d "$ssh_package_folder" ]; then
   echo -e "${RED}ERROR: Cannot find the folder '$ssh_package_folder' ${NC}"
   exit 4
@@ -46,7 +33,7 @@ if [ ! -f "$ssh_package_file" ]; then
 fi
 
 # check the target folder
-target_folder="$project_root/unpacked/squashfs-root"
+target_folder="$ROOTFS_DIR"
 if [ ! -d "$target_folder" ]; then
   echo -e "${RED}ERROR: Cannot find the target folder '$target_folder' ${NC}"
   exit 6
@@ -57,13 +44,13 @@ current_folder="$PWD"
 cd "$target_folder" || exit 7
 unzip -o "$ssh_package_file"
 # add "/opt/etc/init.d/rc.unslung start" to $project_root/unpacked/squashfs-root/etc/rc.local before the exit 0 line
-result=$(grep "/opt/etc/init.d/rc.unslung start" "$project_root/unpacked/squashfs-root/etc/rc.local")
+result=$(grep "/opt/etc/init.d/rc.unslung start" "$ROOTFS_DIR/etc/rc.local")
 if [ -z "$result" ]; then
   # add it only if not already done
-  sed -i '/exit 0/i /opt/etc/init.d/rc.unslung start' "$project_root/unpacked/squashfs-root/etc/rc.local"
+  sed -i '/exit 0/i /opt/etc/init.d/rc.unslung start' "$ROOTFS_DIR/etc/rc.local"
 fi
 # extend the PATH to $project_root/unpacked/squashfs-root/etc/profile
-sed -i 's#export PATH="/usr/sbin:/usr/bin:/sbin:/bin"#export PATH="/usr/sbin:/usr/bin:/sbin:/bin:/opt/sbin:/opt/bin:/usr/local/sbin:/usr/local/bin:/usr/sbin:/usr/bin"#' "$project_root/unpacked/squashfs-root/etc/profile"
+sed -i 's#export PATH="/usr/sbin:/usr/bin:/sbin:/bin"#export PATH="/usr/sbin:/usr/bin:/sbin:/bin:/opt/sbin:/opt/bin:/usr/local/sbin:/usr/local/bin:/usr/sbin:/usr/bin"#' "$ROOTFS_DIR/etc/profile"
 cd "$current_folder" || exit 8
 
 echo -e "${GREEN}The ssh package has been successfully installed ${NC}"
diff --git a/RESOURCES/OPTIONS/startup_script/startup_script.sh b/RESOURCES/OPTIONS/startup_script/startup_script.sh
index c1a860e..bfb3b4c 100755
--- a/RESOURCES/OPTIONS/startup_script/startup_script.sh
+++ b/RESOURCES/OPTIONS/startup_script/startup_script.sh
@@ -1,10 +1,5 @@
 #!/bin/bash
 
-# global definitions:
-RED='\033[0;31m'
-GREEN='\033[0;32m'
-NC='\033[0m'
-
 # check the parameters
 if [ $# != 2 ]; then
     echo "usage : $0 <project_root> <startup_script>"
@@ -15,18 +10,10 @@ project_root="$1"
 startup_script="$2"
 
 # check the required tools
-TOOL_LIST="sed"
-for tool_name in $TOOL_LIST; do
-    echo "Checking tool: $tool_name"
-    tool_path=$(which "$tool_name")
-    if [ -z "$tool_path" ]; then
-        echo -e "${RED}ERROR: Missing tool '$tool_name' ${NC}"
-        exit 1
-    fi
-done
+check_tools "sed"
 
 # Check if $startup_script is available
-if [ ! -f "$project_root/RESOURCES/OPTIONS/startup_script/$startup_script" ]; then
+if [ ! -f "$OPTIONS_DIR/startup_script/$startup_script" ]; then
     echo -e "${RED}ERROR: Cannot find the file '$startup_script' ${NC}"
     exit 2
 fi
@@ -38,20 +25,20 @@ if [ ! -d "$project_root" ]; then
 fi
 
 # Check if $project_root/RESOURCES/KEYS/mosquitto exists
-if [ ! -d "$project_root/RESOURCES/KEYS/mosquitto" ]; then
-    echo -e "${RED}ERROR: Cannot find the folder '$project_root/RESOURCES/KEYS/mosquitto' ${NC}"
+if [ ! -d "$KEYS_DIR/mosquitto" ]; then
+    echo -e "${RED}ERROR: Cannot find the folder '$KEYS_DIR/mosquitto' ${NC}"
     exit 4
 fi
 
 # Copy everything from $project_root/RESOURCES/KEYS/mosquitto to $project_root/unpacked/squashfs-root/etc/ssl/certs
-mkdir -p "$project_root/unpacked/squashfs-root/etc/ssl/certs"
-cp -rf "$project_root/RESOURCES/KEYS/mosquitto"/* "$project_root/unpacked/squashfs-root/etc/ssl/certs"
+mkdir -p "$ROOTFS_DIR/etc/ssl/certs"
+cp -rf "$KEYS_DIR/mosquitto"/* "$ROOTFS_DIR/etc/ssl/certs"
 
 # Move $startup_script to project root/unpacked/squashfs-root/etc
-cp -rf "$project_root/RESOURCES/OPTIONS/startup_script/$startup_script" "$project_root/unpacked/squashfs-root/etc"
+cp -rf "$OPTIONS_DIR/startup_script/$startup_script" "$ROOTFS_DIR/etc"
 
 # Add /etc/$startup_script to $project_root/unpacked/squashfs-root/etc/rc.local before the exit 0 line
-sed -i "/exit 0/i /etc/$startup_script" "$project_root/unpacked/squashfs-root/etc/rc.local"
+sed -i "/exit 0/i /etc/$startup_script" "$ROOTFS_DIR/etc/rc.local"
 
 echo -e "${GREEN}INFO: Startup script '$startup_script' has been installed ${NC}"
 
diff --git a/RESOURCES/OPTIONS/uart/uart.sh b/RESOURCES/OPTIONS/uart/uart.sh
index b264bd2..e734e4f 100755
--- a/RESOURCES/OPTIONS/uart/uart.sh
+++ b/RESOURCES/OPTIONS/uart/uart.sh
@@ -1,10 +1,5 @@
 #!/bin/bash
 
-# global definitions:
-RED='\033[0;31m'
-GREEN='\033[0;32m'
-NC='\033[0m'
-
 # check the parameters
 if [ $# != 2 ]; then
   echo "usage : $0 <project_root> <uart_package>"
@@ -15,15 +10,7 @@ project_root="$1"
 uart_package="$2"
 
 # check the required tools
-TOOL_LIST="unzip"
-for tool_name in $TOOL_LIST; do
-  echo "Checking tool: $tool_name"
-  tool_path=$(which "$tool_name")
-  if [ -z "$tool_path" ]; then
-    echo -e "${RED}ERROR: Missing tool '$tool_name' ${NC}"
-    exit 1
-  fi
-done
+check_tools "unzip"
 
 # check the project root folder
 if [ ! -d "$project_root" ]; then
@@ -32,7 +19,7 @@ if [ ! -d "$project_root" ]; then
 fi
 
 # check the uart package folder
-uart_package_folder="${project_root}/RESOURCES/OPTIONS/uart/${uart_package}"
+uart_package_folder="${OPTIONS_DIR}/uart/${uart_package}"
 if [ ! -d "$uart_package_folder" ]; then
   echo -e "${RED}ERROR: Cannot find the folder '$uart_package_folder' ${NC}"
   exit 4
@@ -46,7 +33,7 @@ if [ ! -f "$uart_package_file" ]; then
 fi
 
 # check the target folder
-target_folder="$project_root/unpacked"
+target_folder="$ROOTFS_DIR"
 if [ ! -d "$target_folder" ]; then
   echo -e "${RED}ERROR: Cannot find the target folder '$target_folder' ${NC}"
   exit 6