#!/bin/bash
#
#   Usage: setup-nemo [options] ver=tag runid=name config=config \
#                     [save=on] \
#                     [repo=dirpath] \
#                     [exp=EXP00] \
#                     [maestro_repo=url] \
#                     [maestro_version=ver] \
#                     [cmip6_diag=on] \
#          Quantities in square brackets are optional. Note that ver and config are not required if
#          the flags -d or -r are used. See below.
#
# Purpose: Copy all files needed to compile and run nemo into the current directory and optionally 
#          save required namelist files to DATAPATH. Also drops a logfile for the run into
#          ".setup-nemo.log" and sends a copy of this log to the nemo run database.  
#          
# Options:
#   -h                  ...display this usage documentation!
#   -d                  ...sets up a maestro dump to tape/delete only job on existing data
#   -r                  ...sets up a maestro rtd only job on existing data
#   -l END_yr:END_mnth  ...compiles and launches a simulation from 0001:01 to the specified end date
#                   Note: the desired simulation length must be such that the default nemo_freq divides 
#                       evenly into it. The default values for nemo_freq are set to  
#                       -> CCC_ORCA1_LIM        : 120 mnths
#                       -> CCC_ORCA1_LIM_CMOC   : 60  mnths
#                       -> CCC_ORCA1_LIM_CANOE  : 24  mnths
#                       -> CCC_ORCA025_LIM      : 4   mnths
#                       -> others               : 12  mnths
#
# Variable definitions:
#   ver=tag       ...tag is the version number/tag or branch to extract from
#                    the git repository (e.g. ccc_nemo_v01)
#   runid=abc     ...abc is the runid for your run (normally three letters). This will be
#                    used in saving the namelist files to DATAPATH, and in naming local files.
#   config=name   ...name is the name of a CCCma nemo configuration (one of CCC_ORCA1_LIM,
#                    CCC_ORCA1_LIM_PISCES, CCC_ORCA1_LIM_CMOC, CCC_ORCA1_LIM_CANOE, 
#                    CCC_ORCA1_OFF_PISCES, CCC_ORCA1_OFF_CANOE, CCC_ORCA1_OFF_CMOC,
#                    and CCC_ORCA025_LIM).
#                    Note that 2 degree configs are no longer supported.
#   repo=dirpath  ...dirpath is the pathname to the git repository
#   save=on       ...with save=on the namelist and iodef files required to do the nemo run will be saved to
#                    DATAPATH with the appropriate runid in their name. The corresponding variables in the 
#                    make_orca_job file are set by default to point to the files on DATAPATH.
#   exp=EXP00 ...is the name of the "experiment" directory from which to extract files (generally not needed).
#   maestro_repo=url ...repositorty to use for the maestro suite (defaults to gitlab).
#   maestro_version=ver ...version of the maestro repo to use (defaults to develop).
#   cmip6_diag=on ...with with_nemo_diag=on the cmip6 diagnostics will be output.
#
# Examples:
# -setup an "out of the box" CCC_ORCA1_LIM_PISCES configuration in the current directory:
#
#    setup-nemo ver=ccc_nemo_v0.1 runid=nta config=CCC_ORCA1_LIM_PISCES 
#     
#  The above command will result in a compile and make_orca_job_nta file in the current directory.
#  To launch the run one simply needs to compile the model and then generate the jobstring and submit.
#
# -setup the CCC_ORCA1_LIM_PISCES configuration from my custom repo on branch my_crazy_test_branch 
#  in the current directory:
#
#    setup-nemo repo=path/to/my/nemo-CCCma_repo ver=my_crazy_test_branch runid=nta config=CCC_ORCA1_LIM_PISCES 
#
# -setup a CCC_ORCA1_LIM config from develop and automatically compile and launch 20 year simulation
#
#    setup-nemo -l 20:12 ver=develop runid=abc config=CCC_ORCA1_LIM
# 
# - setup the CCC_ORCA1_LIM configuration with cmip6 diagnostics from myrepo on branch my_test_branch 
#  in the current directory:
#
#    setup-nemo repo=path/to/my/nemo-CCCma_repo ver=my_test_branch runid=abc config=CCC_ORCA1_LIM cmip6_diag=on
#
# -setup a job to dump to tape and/or delete (existing) data from sitestore for run abc 
#
#    setup-nemo -d runid=abc
#
# -setup an rtd only job for run abc
#
#    setup-nemo -r runid=abc
#
# 2014-11-05 Neil Swart     : Adapted from Larry's build-nemo
# 2018-02-01 Clint Seinen   : Updated to combine other setup scripts into one.
# 2018-04-09 Clint Seinen   : Updated to allow for automatic launching.
# 2018-04-10 Duo Yang       : Adapted for cmip6 diagnostics.
########################################################################
#
bail(){
echo "${Runame}: *** ERROR *** $1"
exit 1
}

FULLPATH=`type $0|awk '{print $3}'` # pathname of this script
Runame=`basename $FULLPATH`

usage() {
  err_exit=0
  while getopts e opt; do
    case $opt in
      e) err_exit=1 ;;
    esac
  done
  shift `expr $OPTIND - 1`

  [ -n "$1" ] && echo >&2 "${Runame}:" "$@"
  echo >&2 " "
  sed >&2 -n '/^###/q; s/^#$/# /; s/^ *$/# /; 3,$s/^# //p;' "$FULLPATH"
  if [ $err_exit -eq 0 ]; then
    exit
  else
    exit 1
  fi
}


# Set defaults

# The particular configuration of nemo to be built will be defined by files
# in a subdir of the nemo source tree. nemo_config is the name of that subdir.
# Only CCC configs wil produce a meaningfull result (e.g. CCC_ORCA2_LIM_PISCES
# not ORCA2_LIM_PISCES).
nemo_config=''

# The version of code to extract and compile
nemo_version=''

# The default location of the repository containing nemo source code
nemo_repo=git@gitlab.science.gc.ca:CanESM/CanNEMO.git

# The default maestro version
maestro_repo=git@gitlab.science.gc.ca:ncs001/CanNEMO_maestro_suite.git
maestro_version='develop'
# a binary flag specifying if the user entered non-default maestro ver
usr_maestro_ver=0 

# The default jobtype
jobtype='sim'

# flag to decide whether to compile and launch
lnch_jb=0

# Target machine to run on. Where we will put stuff on lustre
#run_mach=''

# whether namelist and iodef files are saved to DATAPATH.
save_files=on

# set experiment directory
nemo_exp=EXP00

# Set default history file output
with_nemo_diag=off

# process command line options
while getopts hxrdl: opt
do
  case $opt in
    x) set -x ;;
    h) usage ;;
    r) jobtype='rtd';;      # rtd only
    d) jobtype='dumpdel';;  # dumpdel only
    l) lnch_jb=1            # comp/lnch rn_ln long simulation
        [[ "$OPTARG" == *"="* ]] && 
        bail "you must provide an argument with -l in the following format Y:MM" 
        rn_ln_m=$(echo $OPTARG | sed "s/.*://" | xargs printf "%02d")
        rn_ln_y=$(echo $OPTARG | sed "s/:.*//" | xargs printf "%04d")
        [ "${rn_ln_m}" -gt 12 ] && bail "number of months given with -l must be less than 12" ;;
    -) shift; break ;;              # end of options
    ?) usage -e $USAGE   ;;
  esac
done
shift `expr $OPTIND - 1`

# Process the remaining command line args
for arg in "$@"; do
  case $arg in
    *=*) var=`echo $arg|awk -F\= '{printf "%s",$1}' -`
         val=`echo "$arg"|awk '{i=index($0,"=")+1;printf "%s",substr($0,i)}' -`
         # add this variable definition to the current environment
         [ -n "$var" ] && eval ${var}=\"\$val\" # preserve quoted assignments
         case $var in
             runid) nemo_runid="$val" ;;    # The runid for this setup (three letters)
               ver) nemo_version="$val" ;;  # git version, tag or branch
 #             mach) run_mach="$val" ;;     # target machine
              repo) nemo_repo="$val" ;;     # location of git repository
            config) nemo_config="$val" ;;   # name of subdir in which config lives
              save) save_files="$val" ;;    # save namelists to DATAPATH
               exp) nemo_exp="$val" ;;      # NEMO experiment directory
      maestro_repo) ;;                      # maestro repo (already added to the env in the eval statement)
   maestro_version) usr_maestro_ver=1;;     # maestro verion / commit, the actual var is added to the env in the eval statement 
        cmip6_diag) with_nemo_diag="$val" ;; # cmip6 diagnostics or defaul history file output
                 *) bail "Invalid command line arg --> $arg <--" ;;
         esac
         ;;
    *) bail "Invalid command line arg --> $arg <--" ;;
  esac
done

[ -z "$nemo_runid" ] && bail "A runid is required on the command line."

# Set up maestro according the jobtype
if [ "$jobtype" == 'rtd' ] || [ "$jobtype" == 'dumpdel' ]; then

    if [ "$jobtype" == 'rtd' ]; then
        # set up dirs for rtd
        echo "Setting up an rtd only job"
        # if the use gave a maestro version, use that, else default to 
        # rtd only branch
        [ $usr_maestro_ver -eq 1 ] || maestro_version='maestro-rtd'
    else
        # set up dirs for dumpdel
        echo "Setting up a dump(to tape)/delete data only job"
        # if user gave a maestro version, use that, else default to the 
        # hpcarchonly branch
        [ $usr_maestro_ver -eq 1 ] || maestro_version='maestro-hpcarch'
    fi

    # create directory by cloning the maestro repo
    [ -d ${nemo_runid}-${jobtype} ] && bail "Directory ${nemo_runid}-${jobtype} already exists! Aborting"
    git clone $maestro_repo ${nemo_runid}-${jobtype}
    cd ${nemo_runid}-${jobtype} || { echo "Failed to clone" ;  exit 1 ; }
    git checkout $maestro_version

    CWD=`pwd`
    nrg=`pwd`/.git
    sha1_maestro=`git --git-dir=${nrg} rev-parse ${maestro_version}`

    # basic maestro setup
    export SEQ_EXP_HOME=`pwd`
    mkdir hub logs sequencing stats listings
    makelinks -f
    PATH=$CWD/bin:$PATH
    export PATH

    sed -i "s/RUNID=.*/RUNID=${nemo_runid}/g" experiment.cfg
    sed -i "s/SEQ_JOBNAME_PREFIX=.*/SEQ_JOBNAME_PREFIX=${nemo_runid}-/g" resources/resources.def
    sed -i "s/CONFIG=.*/CONFIG=${nemo_config}/g" experiment.cfg
    config-maestro

    # produce message about experiement.cfg
    echo ""
    if [ "$jobtype" == 'rtd' ]; then 
        echo "NOTE: You should copy the experiment.cfg used for the run here, then do bin/config-maestro before launching."
        echo "Alter the 'start' and 'end' variables if you wish to only perform the diagnostics on a sub-range."
    else
        echo "NOTE: You should copy the experiment.cfg used for the run here, and then alter the settings to fit your needs."
        echo "Warning: it is possible to delete data that hasn't been archived to tape. Be sure to review the descriptions for 'Dump to tape settings' and 'Delete off sitestore settings'."
        echo "See http://wiki.cccma.ec.gc.ca/twiki/bin/view/Main/TechnicalDevelopmentConversion2017-nemo-maestro-instructions for additional details"
    fi

    # print to log
    cd ../
    echo '~~~' >> .setup-${jobtype}.log
    echo `date` >> .setup-${jobtype}.log
    echo "setup-${jobtype}"  $@ >> .setup-${jobtype}.log
    echo 'Maestro suite corresponds to SHA1:' $sha1_maestro >> .setup-${jobtype}.log
else
    echo "Setting up an ocean only run"
    [ -z "$nemo_version" ] && bail "A version number/tag or branch is required on the command line."
    [ -z "$nemo_config" ] &&
        bail "The name of the configuration is required on the command line ...config=cfgname"

    [ -z "$nemo_repo" ] && bail "The source repository name is missing."
    #[ ! -d "$nemo_repo" ] && bail "Repository is not a directory --> $nemo_source_repo <--"
    #echo "Using the git repository $nemo_repo"

    # Ensure this is a full pathname
    #nemo_source_repo=$(cd $nemo_source_repo; pwd)

    # Try to get user input list for a new config.
    get_list(){
    echo " "
    echo "*** Unrecognized CONFIG! ***"
    echo " "
    echo "This might be OK if you have just added this CONFIG to your repo, otherwise you are in trouble and should abort.
          We need to figure out which namelists (etc) you want to save from this config. The choices below relate only 
          to the *names* of files to be used. The files themselves will be extracted from the CONFIG ($nemo_config) that you specified."
    echo " "
    echo "Choose an option and hit enter"
    echo "
          a) Abort \n 
          b) use physics default: 'namelist namelist_ice iodef.xml xmlio_server.def' \n
          c) use carbon (pisces/canoe) default: 'namelist namelist_ice namelist_pisces namelist_top iodef.xml xmlio_server.def' \n
          d) use carbon (cmoc) default: 'namelist namelist_ice namelist_pisces namelist_cmoc namelist_top iodef.xml xmlio_server.def'
         "
    echo " "
    read inlist
    case $inlist in
        a) bail "Aborting..." ;;
        b) lists='namelist namelist_ice namelist_top iodef.xml xmlio_server.def' ;;
        c) lists='namelist namelist_ice namelist_pisces namelist_top iodef.xml xmlio_server.def'  ;;
        d) lists='namelist namelist_ice namelist_pisces namelist_cmoc namelist_top iodef.xml xmlio_server.def' ;;
        *) bail "Aborting" ;;
    esac
    }

    # Make sure the config is valid and decide which namelist files we need.
    case $nemo_config in
        CCC_ORCA025_LIM)      lists='namelist namelist_ice namelist_top iodef.xml xmlio_server.def'                               ;;
        CCC_ORCA025_LIM_CMOC) lists='namelist namelist_ice namelist_pisces namelist_cmoc namelist_top iodef.xml xmlio_server.def' ;;
        CCC_ORCA1_LIM)        lists='namelist namelist_ice namelist_top iodef.xml xmlio_server.def'                               ;;
        CCC_ORCA1_LIM_PISCES) lists='namelist namelist_ice namelist_pisces namelist_top iodef.xml xmlio_server.def'  ;;
        CCC_ORCA1_LIM_CANOE) lists='namelist namelist_ice namelist_pisces namelist_top iodef.xml xmlio_server.def'  ;;
        CCC_ORCA1_LIM_CMOC)   lists='namelist namelist_ice namelist_pisces namelist_cmoc namelist_top iodef.xml xmlio_server.def' ;;
        CCC_ORCA1_OFF_PISCES) lists='namelist namelist_pisces namelist_top iodef.xml xmlio_server.def'  ;;
        CCC_ORCA1_OFF_CANOE) lists='namelist namelist_pisces namelist_top iodef.xml xmlio_server.def'  ;;
        CCC_ORCA1_OFF_CMOC) lists='namelist namelist_pisces namelist_top namelist_cmoc iodef.xml xmlio_server.def'  ;;
                         #*) bail "Invalid configuration --> $arg <-- ...config MUST be a CCC_* config." ;;
                         *) get_list ;;
    esac

    nemo_config_lc=`echo "$nemo_config" | awk '{print tolower($0)}'`
    # Make a directory by cloning the maestro repo and do basic maestro setup
    [ -d $nemo_runid ] && bail "Directory $nemo_runid already exists! Aborting"

    git clone $maestro_repo $nemo_runid
    cd $nemo_runid || { echo "Failed to clone" ;  exit 1 ; }

    git checkout $maestro_version
    CWD=`pwd`
    nrg=`pwd`/.git
    sha1_maestro=`git --git-dir=${nrg} rev-parse ${maestro_version}`

    # basic maestro setup
    export SEQ_EXP_HOME=`pwd`
    mkdir hub logs sequencing stats listings
    touch "logs/`date '+%Y%m%d'`000000_nodelog"
    makelinks -f
    PATH=$CWD/bin:$PATH
    export PATH

    sed -i "s/RUNID=.*/RUNID=${nemo_runid}/g" experiment.cfg
    # Set the configuration on which to base this experiment
    sed -i 's/.*config=.*/config='"$nemo_config/" experiment.cfg
    if [ ${with_nemo_diag} = on ] ; then
       sed -i "s/with_nemo_diag=.*/with_nemo_diag=on/" experiment.cfg
    fi
    sed -i "s/SEQ_JOBNAME_PREFIX=.*/SEQ_JOBNAME_PREFIX=${nemo_runid}-/g" resources/resources.def
    config-maestro

    # Do the cloning to RAMDISK for speedup
    #stamp=`date "+%j%H%M%S"$$`
    #tmpd=/tmp/tmp_setup_nemo_$stamp
    #mkdir -p $tmpd && cd $tmpd || tmpd=$CWD

    # Get the CanESM source code
    src_path=CanNEMO_tmp_src
    git clone --recursive $nemo_repo $src_path
    cd CanNEMO_tmp_src
    git checkout $nemo_version
    git submodule update --init --recursive
    # Get the exact checksum of the ver
    nrg=`pwd`/.git
    sha1=`git --git-dir=${nrg} rev-parse ${nemo_version}`
    echo sha1 is $sha1

    cd $CWD

    ## Move down from RAMDISK
    #if [ "$tmpd" != "$CWD" ]; then
    #   mv $tmpd/$src_path $CWD/
    #fi

    # SETUP links to relevant namelists and compile script

    # Get the compile script, and reset runid, repo and ver.
    ln -s ${src_path}/nemo/CONFIG/${nemo_config}/${nemo_exp}/compile ${CWD}/compile
    [ -e compile ] || bail "Failed to extract compile script from ${src_path}/nemo/CONFIG/${nemo_config}/${nemo_exp}/compile" 
    cat compile | sed "s#build-nemo#./CanNEMO_tmp_src/bin/build-nemo#;s#runid#${nemo_runid}#;s#repo=[^ ]*#repo="$nemo_repo"#;s#ver=[^ ]*#ver=$sha1 srcpath=${CWD}/${src_path}#" > compile_${nemo_runid}
    if [ ${with_nemo_diag} = on ] ; then
       sed -i '/cfg/s/$/ add_key="key_trdtra key_diaar5"/' compile_${nemo_runid}
    fi
    rm -f compile
    chmod +x compile_${nemo_runid}

    # add to compile script to allow it to be called from any where (not just on the xc40s)
    insrt_hdr="#!/bin/bash\nCWD="'`pwd`'"\nssh "'$(whoami)'"@hare << EOSSH\ncd "'$CWD'"\n"
    sed -i "1i $insrt_hdr" compile_${nemo_runid}
    echo "EOSSH" >> compile_${nemo_runid}

    nemo_config_lower=`echo ${nemo_config} | tr '[:upper:]' '[:lower:]'`
    nemo_exe=${nemo_runid}_${nemo_config_lower}_exe
    sed -i "s#nemo_exec=.*#nemo_exec="'${SEQ_EXP_HOME}/'${nemo_exe}"#g" experiment.cfg

    # nameslists
    # Get the namelists/iodefs and optionally save them to DATAPATH
    if [ -s $CWD/namelists ]; then 
        echo "WARNING: namelists dir already exists, overwriting"
        cd $CWD/namelists
    else
        mkdir namelists
        cd $CWD/namelists
    fi
    . ${CWD}/bin/CanNEMO_shell_functions.sh
    for i in $lists
    do
        # Link here from source using relative links
        ln -s ../${src_path}/nemo/CONFIG/${nemo_config}/${nemo_exp}/${i} .
        if [[ $i == *"namelist"* ]]; then
           #stre="${i}="'${SEQ_EXP_HOME}/namelists/'${i}"" 
           #mod_nl $CWD/experiment.cfg stre
           sed -i "s#${i}=.*#${i}="'${SEQ_EXP_HOME}/namelists/'${i}"#" ../experiment.cfg
        fi
        if [[ $i == "iodef"* ]]; then
           if [ ${with_nemo_diag} = on ] ; then
              sed -i 's#output_level=.*#output_level="10" >#' ${i}
           fi
        fi
    done
    # Modifiy namelist paths in experiment.cfg
    #sed -i "s#nemo_namelist=.*#nemo_namelist="'${SEQ_EXP_HOME}/namelists/'namelist"#" ../experiment.cfg
    #sed -i "s#nemo_namelist_ice=.*#nemo_namelist_ice="'${SEQ_EXP_HOME}/namelists/'namelist_ice"#" ../experiment.cfg
    #sed -i "s#nemo_namelist_top=.*#nemo_namelist_top="'${SEQ_EXP_HOME}/namelists/'namelist_top"#" ../experiment.cfg
    #sed -i "s#nemo_namelist_pisces=.*#nemo_namelist_pisces="'${SEQ_EXP_HOME}/namelists/'namelist_pisces"#" ../experiment.cfg
    #sed -i "s#nemo_namelist_cmoc=.*#nemo_namelist_cmoc="'${SEQ_EXP_HOME}/namelists/'namelist_cmoc"#" ../experiment.cfg

    sed -i "s#nemo_xmlio_server_def=.*#nemo_xmlio_server_def="'${SEQ_EXP_HOME}/namelists/'xmlio_server.def"#" ../experiment.cfg
    sed -i "s#nemo_iodef=.*#nemo_iodef="'${SEQ_EXP_HOME}/namelists/'iodef.xml"#" ../experiment.cfg

    # Setup files and carbon options, depending on the config.
    if [[ $nemo_config_lower == *"cmoc"* ]] || [[ $nemo_config_lower == *"canoe"* ]]; then
        sed -i "s#nemo_carbon=.*#nemo_carbon=on#" ../experiment.cfg
        if [[ $nemo_config_lower == *"cmoc"* ]]; then
            sed -i "s#nemo_cmoc=.*#nemo_cmoc=on#" ../experiment.cfg
        fi
        if [[ $nemo_config_lower == *"off"* ]]; then
            sed -i 's#nemo_hist_file_suffix_list=.*#nemo_hist_file_suffix_list="ptrc_T diad_T"#' ../experiment.cfg
            sed -i 's#nemo_hist_file_freq_list=.*#nemo_hist_file_freq_list="1m     1m"#' ../experiment.cfg
            sed -i 's#nemo_dump_file_suff=.*#nemo_dump_file_suff="ptrc_T diad_T"#' ../experiment.cfg
            sed -i 's#nemo_dump_file_freq=.*#nemo_dump_file_freq="1m     1m"#' ../experiment.cfg
            sed -i 's#nemo_del_file_suff=.*#nemo_del_file_suff="ptrc_T diad_T"#' ../experiment.cfg
            sed -i 's#nemo_del_file_freq=.*#nemo_del_file_freq="1m     1m"#' ../experiment.cfg
        fi
    fi

    # Set the nemoval resolution, depending on the config (default is 1d in experiment.cfg).
    if [[ $nemo_config_lower == *"orca025"* ]]; then
        sed -i "s#nemoval_res=.*#nemoval_res=025d#" ../experiment.cfg
    fi

    # Set nemo_freq
    echo "Setting nemo_freq, based off given config, to recommended value for 3hr wallclock time"
    case $nemo_config_lower in 
        "ccc_orca1_lim")        frq="10y"   ;; 
        "ccc_orca1_lim_cmoc")   frq="5y"    ;;
        "ccc_orca1_lim_canoe")  frq="2y"    ;;
        "ccc_orca025_lim")      frq="4m"    ;;
        *) 
            echo "There is currently no recommended nemo_freq for config ${nemo_config}"
            echo "Value set to 1y. Alter if desired"
            frq="1y" ;;
    esac
    sed -i "s#nemo_freq=.*#nemo_freq=${frq}#" ../experiment.cfg

    # print to log
    cd ../
    echo '~~~' >> .setup-nemo.log
    echo `date` >> .setup-nemo.log
    echo 'setup-nemo ' $@ >> .setup-nemo.log

    echo 'Code corresponds to SHA1:' $sha1 >> .setup-nemo.log
    echo 'Maestro suite corresponds to SHA1:' $sha1_maestro >> .setup-nemo.log

    # Write log to nemo run database
    datef=`date +"%Y-%m-%d %T"`
    userf=`whoami`

    sqlite3 /home/ncs001/ocean_runs/ocean_runs.db  << EOF
                            INSERT INTO runs (runid, date, user, config, ver, repo, sha1)
                            values('${nemo_runid}', '${datef}', '${userf}', '${nemo_config}', 
                                   '${nemo_version}', '${nemo_repo}', '${sha1}');
EOF

    # if the -l flag was given, launch simulation according to the desired length
    if [ $lnch_jb -eq 1 ]; then
        echo "Compiling and launching default $nemo_config simulation from 0001:01 to ${rn_ln_y}:${rn_ln_m}"

        # compile
        echo "compiling..."
        ./compile_${runid} >> compile.log 2>&1    

        # considerations for quarter degree model
        if [[ $nemo_config_lower == *"orca025"* ]]; then
            sed -i "s#nemo_rtd=.*#nemo_rtd=off#" ./experiment.cfg

            # set necessary data files for added resolution
            # grid information
            sed -i "s#orca_grid_info=.*#orca_grid_info=nemo3.4.1_orca025_mesh_mask_ngb.nc#" ./experiment.cfg
            # init files
            sed -i "s#nemo_data_1m_potential_temperature_nomask=.*#nemo_data_1m_potential_temperature_nomask=nemo_3.4_orca025_potemp_1m_z46_nomask_orca1jan.nc#" ./experiment.cfg
            sed -i "s#nemo_data_1m_salinity_nomask=.*#nemo_data_1m_salinity_nomask=nemo_3.4_orca025_salin_1m_z46_nomask_orca1jan.nc#" ./experiment.cfg
            sed -i "s#nemo_coordinates=.*#nemo_coordinates=nemo_3.4_orca025_coordinates_cmc.nc#" ./experiment.cfg
            sed -i "s#nemo_bathy_meter=.*#nemo_bathy_meter=nemo_3.4_orca025_bathy_meter_cmc.nc#" ./experiment.cfg
            sed -i "s#nemo_M2rowdrg=.*#nemo_M2rowdrg=nemo_3.4.1_orca025_m2rowdrg_orca1_inter.nc#" ./experiment.cfg
            sed -i "s#nemo_K1rowdrg=.*#nemo_K1rowdrg=nemo_3.4.1_orca025_k1rowdrg_orca1_inter.nc#" ./experiment.cfg
            sed -i "s#nemo_sss_data=.*#nemo_sss_data=nemo_3.4_orca025_sss_1m.nc#" ./experiment.cfg
            sed -i "s#nemo_chlorophyll=.*#nemo_chlorophyll=nemo_3.4.1_orca025_chlorophyll_1m_orca1.nc#" ./experiment.cfg
            # forcing consideration (set up to work with default forcing)
            #   - the addressing forces replacements only in default forcing section
            sed -i "/^\s*#/! s#nemo_weights_bicubic2=.*#nemo_weights_bicubic2=uncs_orca025_canesm2_weights_bicubic.nc#" ./experiment.cfg
            sed -i "/^\s*#/! s#nemo_weights_bilinear2=.*#nemo_weights_bilinear2=uncs_orca025_canesm2_weights_bilin.nc#" ./experiment.cfg
            sed -i "/^\s*#/! s#nemo_runoff_core_monthly=.*#nemo_runoff_core_monthly=nemo_3.4.1_orca025_rout_socoefr_month_r1i1p1_1979-2005-mean2.nc#" ./experiment.cfg
            sed -i "/^\s*sn_cnf=./ s#socoeff#socoefr#" ./experiment.cfg
            sed -i "/^\s*sn_cnf=./ s#weights_bil2##" ./experiment.cfg
            # timestep
            sed -i "s#nemo_rdt=.*#nemo_rdt=1200#" ./experiment.cfg
        fi

        # set run length
        sed -i "s#end=.*#end=${rn_ln_y}:${rn_ln_m}#" ./experiment.cfg

        # config maestro
        ./bin/config-maestro 2>/dev/null || 
        bail "your desired simulation length must be set such that nemo_freq (set to ${frq}) "\
        "evenly divides into the number of months in the run. Alter 'end' or 'nemo_freq' in "\
        "experiment.cfg and try to launch again with the following command './bin/config-maestro; "\
        "expbegin -e \`pwd\` -d \`date +%Y%m%d%H%M\`'"

        # launch run
        expbegin -e `pwd` -d `date +%Y%m%d%H%M`
    fi
fi