@@ -1352,6 +1352,7 @@ function is_running {

 # If the command includes shell metachatacters (;<>*) it must be run using a shell

 # If an optional group is provided sg will be used to run the

 # command as that group.

+# Uses globals ``USE_SCREEN``

 # run_process service "command-line" [group]

 function run_process {

     local service=$1

@@ -1370,7 +1371,7 @@ function run_process {

 # Helper to launch a process in a named screen

 # Uses globals ``CURRENT_LOG_TIME``, ```LOGDIR``, ``SCREEN_LOGDIR``, `SCREEN_NAME``,

-# ``SERVICE_DIR``, ``USE_SCREEN``, ``SCREEN_IS_LOGGING``

+# ``SERVICE_DIR``, ``SCREEN_IS_LOGGING``

 # screen_process name "command-line" [group]

 # Run a command in a shell in a screen window, if an optional group

 # is provided, use sg to set the group of the command.

@@ -1381,7 +1382,6 @@ function screen_process {

     SCREEN_NAME=${SCREEN_NAME:-stack}

     SERVICE_DIR=${SERVICE_DIR:-${DEST}/status}

-    USE_SCREEN=$(trueorfalse True USE_SCREEN)

     screen -S $SCREEN_NAME -X screen -t $name

@@ -1465,14 +1465,13 @@ function screen_rc {

 # If a PID is available use it, kill the whole process group via TERM

 # If screen is being used kill the screen window; this will catch processes

 # that did not leave a PID behind

-# Uses globals ``SCREEN_NAME``, ``SERVICE_DIR``, ``USE_SCREEN``

+# Uses globals ``SCREEN_NAME``, ``SERVICE_DIR``

 # screen_stop_service service

 function screen_stop_service {

     local service=$1

     SCREEN_NAME=${SCREEN_NAME:-stack}

     SERVICE_DIR=${SERVICE_DIR:-${DEST}/status}

-    USE_SCREEN=$(trueorfalse True USE_SCREEN)

     if is_service_enabled $service; then

         # Clean up the screen window

@@ -1490,7 +1489,6 @@ function stop_process {

     local service=$1

     SERVICE_DIR=${SERVICE_DIR:-${DEST}/status}

-    USE_SCREEN=$(trueorfalse True USE_SCREEN)

     if is_service_enabled $service; then

         # Kill via pid if we have one available

@@ -1552,11 +1550,11 @@ function service_check {

 }

 # Tail a log file in a screen if USE_SCREEN is true.

+# Uses globals ``USE_SCREEN``

 function tail_log {

     local name=$1

     local logfile=$2

-    USE_SCREEN=$(trueorfalse True USE_SCREEN)

     if [[ "$USE_SCREEN" = "True" ]]; then

         screen_process "$name" "sudo tail -f $logfile"

     fi

@@ -101,7 +101,7 @@ HORIZON_APACHE_ROOT="/dashboard"

 # ctrl-c, up-arrow, enter to restart the service. Starting services

 # this way is slightly unreliable, and a bit slower, so this can

 # be disabled for automated testing by setting this value to False.

-USE_SCREEN=True

+USE_SCREEN=$(trueorfalse True USE_SCREEN)

 # When using screen, should we keep a log file on disk?  You might

 # want this False if you have a long-running setup where verbose logs