Clean $DATA and have all steps of ocean anl use same $DATA

The ocean analysis jobs appear to need a persistent $DATA directory,
so the j-jobs have had their previous settings for $DATA restored.

Additionally, the j-job header now wipes any existing $DATA
directory if the variable $WIPE_DATA is set to "YES", which is the
default. To allow the persistent $DATA for the ocean analysis jobs,
the RUN and POST j-jobs set $WIPE_DATA to "NO".

jobs/JGDAS_GLOBAL_OCEAN_ANALYSIS_POST

@@ -1,6 +1,8 @@
 #!/bin/bash
 export STRICT="NO"
 source "${HOMEgfs}/ush/preamble.sh"
+WIPE_DATA="NO"
+DATA="${DATA:-${DATAROOT}/${RUN}ocnanal_${cyc}}"
 source "${HOMEgfs}/ush/jjob_header.sh" base ocnanalpost
 
 

jobs/JGDAS_GLOBAL_OCEAN_ANALYSIS_PREP

@@ -1,6 +1,7 @@
 #!/bin/bash
 export STRICT="NO"
 source "${HOMEgfs}/ush/preamble.sh"
+DATA="${DATA:-${DATAROOT}/${RUN}ocnanal_${cyc}}"
 source "${HOMEgfs}/ush/jjob_header.sh" base ocnanal ocnanalprep
 
 

jobs/JGDAS_GLOBAL_OCEAN_ANALYSIS_RUN

@@ -1,6 +1,8 @@
 #!/bin/bash
 export STRICT="NO"
 source "${HOMEgfs}/ush/preamble.sh"
+WIPE_DATA="NO"
+DATA="${DATA:-${DATAROOT}/${RUN}ocnanal_${cyc}}"
 source "${HOMEgfs}/ush/jjob_header.sh" base ocnanal ocnanalrun
 
 

ush/jjob_header.sh

@@ -3,7 +3,8 @@
 # Universal header for global j-jobs
 #
 # Sets up and completes actions common to all j-jobs:
-# - Creates and moves to $DATA
+# - Creates and moves to $DATA after removing any
+#     existing one unless $WIPE_DATA is set to "NO"
 # - Runs `setpdy.sh`
 # - Sources configs provided as arguments
 # - Sources machine environment script
@@ -33,6 +34,9 @@ configs=("$@")
 # make temp directory
 ##############################################
 export DATA=${DATA:-"${DATAROOT}/${jobid}"}
+if [[ ${WIPE_DATA:-YES} == "YES" ]]; then
+    rm -rf "${DATA}"
+fi
 mkdir -p "${DATA}"
 cd "${DATA}" || ( echo "FATAL: ${DATA} does not exist"; exit 1 )