Make sure loh_helpers is sourced only once

log_helpers

@@ -1,38 +1,35 @@
 #!/bin/bash
 # set -x 
 
-#if [ ${log_helpers_sourced:-1} = "1" ]; then
+if [ ${log_helpers_sourced:-1} = "1" ]; then    # include ony once
-#    readonly log_helpers_sourced=${BASH_SOURCE[0]}
+    readonly log_helpers_sourced=${BASH_SOURCE[0]}
-#else
-#    return 0
-#fi 
 
-readonly log_file=/var/log/update_controller.log
+    readonly log_file=/var/log/update_controller.log
-if ! [ -f "$log_file" ]; then
+    if ! [ -f "$log_file" ]; then
         touch $log_file
-fi
+    fi
 
-readonly DEBUG=0
+    readonly DEBUG=0
-readonly INFO=1
+    readonly INFO=1
-readonly WARN=2
+    readonly WARN=2
-readonly CRIT=3
+    readonly CRIT=3
-readonly ERROR=4
+    readonly ERROR=4
-readonly FATAL=5
+    readonly FATAL=5
-readonly MAX_DEBUG_LEVEL=6
+    readonly MAX_DEBUG_LEVEL=6
 
-log_level=0
+    log_level=0
 
-set_dbg_level () {
+    set_dbg_level () {
         if [ $1 < $MAX_DEBUG_LEVEL ]; then
             log_level=$1
         fi
-}
+    }
 
-dbg_level () {
+    dbg_level () {
         return $log_level
-}
+    }
 
-log() {
+    log() {
         if [[ $(("$(wc -l < $log_file)")) -ge $((100000)) ]]; then
             # remove first line
             sed -e 1d -i $log_file
@@ -40,44 +37,44 @@ log() {
         local msg="$(date +'%Y-%m-%d_%T'): $*"
         printf "log:$msg\n" >&2
         printf "$msg\n" >> $log_file
-}
+    }
 
-log_debug() {
+    log_debug() {
         if [ $log_level = $DEBUG ]; then
             log "DEBUG $*"
         fi
-}
+    }
 
-log_info() {
+    log_info() {
         if [ $log_level -le $INFO ]; then
             log "INFO  $*"
         fi
-}
+    }
 
-log_warn() {
+    log_warn() {
         if [ $log_level -le $WARN ]; then
             log "WARN  $*"
         fi
-}
+    }
 
-log_crit() {
+    log_crit() {
         if [ $log_level -le $CRIT ]; then
             log "CRIT  $*"
         fi
-}
+    }
 
-log_error() {
+    log_error() {
         if [ $log_level -le $ERROR ]; then
             log "ERROR  $*"
         fi
-}
+    }
 
-log_fatal() {
+    log_fatal() {
         if [ $log_level -le $FATAL ]; then
             log "FATAL  $*"
             log "exiting ..."
             exit 1
         fi
-}
+    }
-
+###############################################################################
-# log "test message1" "test message2"
+fi ### include guard