feat: Add datetime on log

watch

@@ -4,6 +4,11 @@
 
 DEBUG=${DEBUG:-"Unknown Error"}
 
+function log {
+  now=`date +"%Y-%m-%d %T"`
+  echo "[${now}] $1"
+}
+
 function usage {
 cat <<-EOF
 	Usage: $PROGNAME [OPTIONS] <local-path> <remote-path>
@@ -16,7 +21,7 @@ EOF
 }
 
 function error_exit {
-  echo "${1:-"Unknown Error"}" 1>&2
+  log "${1:-"Unknown Error"}" 1>&2
   exit 1
 }
 
@@ -51,49 +56,49 @@ function restore {
     fi
   fi
 
-  echo "restoring $REMOTE => $LOCAL"
+  log "restoring $REMOTE => $LOCAL"
   if ! $S3_PROG sync "$REMOTE/*" "$LOCAL"; then
     error_exit "restore failed"
   fi
 }
 
 function backup {
-  echo "backup $LOCAL => $REMOTE"
+  log "backup $LOCAL => $REMOTE"
   if ! $S3_PROG sync "$LOCAL" "$REMOTE" $S3_SYNC_FLAGS; then
-    echo "backup failed" 1>&2
+    log "backup failed" 1>&2
     return 1
   fi
 }
 
 function final_backup {
-  echo "backup $LOCAL => $REMOTE"
+  log "backup $LOCAL => $REMOTE"
   while ! $S3_PROG sync "$LOCAL" "$REMOTE" $S3_SYNC_FLAGS; do
-    echo "backup failed, will retry" 1>&2
+    log "backup failed, will retry" 1>&2
     sleep 1
   done
   exit 0
 }
 
 function idle {
-  echo "ready"
+  log "ready"
+  log "RESTORE_INTERVAL: ${RESTORE_INTERVAL}"
   while true; do
     restore
-    if [[ -v $RESTORE_INTERVAL ]]; then
+    if [[ -v RESTORE_INTERVAL ]]; then
       backup
-      timeout ${RESTORE_INTERVAL} inotifywait -m -e modify -e move -e create -e delete --timefmt '%Y-%m-%d %H:%M:%S' --format '%T %f' $LOCAL | while read date time file; do echo echo "The file '$file' appeared in directory '$path' via '$action'"; backup; done
+      timeout ${RESTORE_INTERVAL} inotifywait -m -e modify -e move -e create -e delete --timefmt '%Y-%m-%d %H:%M:%S' --format '%T %f' $LOCAL | while read date time file; do log "The file '$file' appeared in directory '$path' via '$action'"; backup; done
     else
+      log "Without restore interval"
       inotifywait -m -e modify -e move -e create -e delete --timefmt '%Y-%m-%d %H:%M:%S' --format '%T %f' $LOCAL |
       while read date time file
       do
-        echo echo "The file '$file' appeared in directory '$path' via '$action'"
+        log "The file '$file' appeared in directory '$path' via '$action'"
         backup
       done
     fi
   done
 }
 
-restore
-
 trap final_backup SIGHUP SIGINT SIGTERM
 trap "backup; idle" USR1