run: add log command

run

@@ -2,6 +2,7 @@
 
 dev=/dev/serial/by-id/usb-FTDI_FT232R_USB_UART_A500DA2H-if00-port0
 rundir=$(realpath $(dirname $0))
+session="tic2mqtt"
 
 cmd=""
 quiet=""
@@ -12,16 +13,17 @@ while [ $# -gt 0 ]; do
       stop)    cmd=$1;;
       restart) cmd=$1;;
       status)  cmd=$1;;
+      log)     cmd=$1;;
       -q)      quiet=$1;;
       --quiet) quiet=$1;;
-      *)       echo "usage: $0 [start|stop|restart|status] [-q|--quiet]"
+      *)       echo "usage: $0 [start|stop|restart|status|log] [-q|--quiet]"
                exit 1
                ;;
     esac
     shift
 done
 
-is_running=$(tmux has -t tic2mqtt 2> /dev/null && echo yes)
+is_running=$(tmux has -t $session 2> /dev/null && echo yes)
 
 case "$cmd" in
     start)
@@ -31,7 +33,7 @@ case "$cmd" in
         fi
         make -s
         test -z $quiet && echo "starting tic2mqtt"
-        tmux new -s tic2mqtt -d "./tic2mqtt -a -t $dev -h doctor -v"
+        tmux new -s $session -d "./tic2mqtt -a -t $dev -h doctor -v"
         test -z $quiet && tmux ls
         ;;
     stop)
@@ -40,7 +42,7 @@ case "$cmd" in
             exit 0
         fi
         test -z $quiet && echo "killing tic2mqtt"
-        tmux kill-session -t tic2mqtt
+        tmux kill-session -t $session
         ;;
     restart)
         $0 $quiet stop
@@ -48,7 +50,16 @@ case "$cmd" in
         ;;
     status)
         if [ -n "$is_running" ]; then
-            tmux ls | grep tic2mqtt
+            tmux ls | grep $session
+        else
+            echo "no tic2mqtt running"
+        fi
+        ;;
+    log)
+        if [ -n "$is_running" ]; then
+            tmux capture -b $session -p -S - | head -15
+            echo "[...]"
+            tmux capture -b $session -p -E -
         else
             echo "no tic2mqtt running"
         fi