ccs-push

#!/bin/bash

# This file is part of ccs-push
#
# Developed for the LSST Data Management System.
# This product includes software developed by the LSST Project
# (https://www.lsst.org).
# See the COPYRIGHT file at the top-level directory of this distribution
# for details of code ownership.
#
# This program is free software: you can redistribute it and/or modify
# it under the terms of the GNU General Public License as published by
# the Free Software Foundation, either version 3 of the License, or
# (at your option) any later version.
#
# This program is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
# GNU General Public License for more details.
#
# You should have received a copy of the GNU General Public License
# along with this program.  If not, see <https://www.gnu.org/licenses/>.

# Files are transferred to the remote system and then linked
# so they instantly appear to the OODS and DBB services. This
# is done so a service doesn't start processing while a file
# is in the process of being transferred.

#usage info
usage_msg="usage: $0 -h hostname -c (auxtel|comcam|maintel) -s subdir -f filename"


# argument parsing
while getopts c:df:h:s: option
do
    case "${option}" in
    # camera
    c)
        if  [[ "$OPTARG" == "auxtel" || "$OPTARG" == "comcam" || "$OPTARG" == "maintel" ]];
        then
            camera=${OPTARG}
        else
            echo "$usage_msg"
            exit 1
        fi;;
    # file name
    f)
        filename=${OPTARG}
        ;;
    # host to transfer to
    h)
        oods_hostname=${OPTARG}
        ;;
    # subdirectory (can be a, a/b, a/b/c, etc.)
    s)
        sub_dir=${OPTARG}
        ;;
    *)
        echo "$usage_msg"
        exit 1
        ;;
    esac
done

# check to see of all required arguments exist
if [[ -z "$camera" ]] || [[ -z "$filename" ]] || [[ -z "$oods_hostname" ]] || [[ -z "$sub_dir" ]];
then
    echo "$usage_msg"
    exit 1
fi

# file name to create on remote side
remote_file=$(basename "$filename")

# set the ssh login
oods_login=saluser@$oods_hostname

# directory where files are first staged from the camera
staging_root=/data/staging/$camera/camera/$sub_dir

# files where files are linked for the OODS
oods_landing_root=/data/staging/$camera/oods/$sub_dir

# link the file to the OODS directory
# shellcheck disable=SC2029
ssh "$oods_login" "\
    mkdir -p $staging_root && \
    mkdir -p $oods_landing_root && \
    cat > $staging_root/$remote_file && \
    mv $staging_root/$remote_file $oods_landing_root/$remote_file" <"$filename"