feat(logging): first very simple logging implementation

Signed-off-by: Dominik Willner th33xitus@gmail.com

scripts/klipper.sh

@@ -48,9 +48,12 @@ function klipper_setup_dialog(){
   status_msg "Initializing Klipper installation ..."
 
   ### return early if klipper already exists
-  if [ -n "$(klipper_exists)" ]; then
+  local klipper_services
+  klipper_services=$(klipper_exists)
+  if [ -n "${klipper_services}" ]; then
     local error="At least one Klipper service is already installed:"
-    for s in $(klipper_exists); do
+    for s in ${klipper_services}; do
+      log "Found Klipper service: ${s}"
       error="${error}\n ➔ ${s}"
     done
     print_error "${error}" && return

scripts/utilities.sh

@@ -13,6 +13,7 @@ set -e
 
 ### base variables
 SYSTEMD="/etc/systemd/system"
+LOGFILE="/tmp/kiauh.log"
 
 # setting up some frequently used functions
 check_euid(){
@@ -27,6 +28,15 @@ check_euid(){
   fi
 }
 
+function timestamp() {
+  date +"[%F %T]"
+}
+
+function log() {
+  local message="${1}"
+  echo -e "$(timestamp) ${message}" | tr -s " " >> "${LOGFILE}"
+}
+
 check_klipper_cfg_path(){
   source_kiauh_ini
   if [ -z "${klipper_cfg_loc}" ]; then