Command line utility for uploading directory structure into GridFS

mongo_upload.sh

#!/usr/bin/env bash

## Command line utility for uploading directory structure into GridFS
## Copyright (c) 2015-2016 norcane
##
## Authors:
##   - Vaclav Svejcar (v.svejcar@norcane.cz)
## ------------------------------------------------------------------
## 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 <http://www.gnu.org/licenses/>.
## ------------------------------------------------------------------

## Whether to remove all files from GridFS before upload, defaults to 'false'
REMOVE_FILES=false

## Parse the command line arguments
while [[ $# > 0 ]]
do
  key="$1"

  case $key in

    ## Represents the directory to upload files from
    -d|--directory)
    BASE_DIR="${2%/}"
    shift
    ;;

    ## Represents the database name
    -n|--db-name)
    DB_NAME="$2"
    shift
    ;;

    ## Represents the option wheter to remove all files from GridFS
    -r|--remove-all-files)
    REMOVE_FILES=true
    ;;

    ## Represents whether to show the 'help' text instead
    -h|--help)
    echo "Command line utility for uploading directory structure into GridFS"
    echo "Copyright (c) 2015-2016 norcane"
    echo "------------------------------------------------------------------"
    echo "This program is free software: you can redistribute it and/or modify"
    echo "it under the terms of the GNU General Public License as published by"
    echo "the Free Software Foundation, either version 3 of the License, or"
    echo "(at your option) any later version."
    echo ""
    echo "This program is distributed in the hope that it will be useful,"
    echo "but WITHOUT ANY WARRANTY; without even the implied warranty of"
    echo "MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the"
    echo "GNU General Public License for more details."
    echo
    echo "You should have received a copy of the GNU General Public License"
    echo "along with this program.  If not, see <http://www.gnu.org/licenses/>."
    echo "------------------------------------------------------------------"
    echo "OPTIONS:"
    echo -e "\t-d|--directory <path_to_dir> - directory to upload files from"
    echo -e "\t-n|--db-name <db_name> - name of the database"
    echo -e "\t-r|--remove-all-files - remove all existing files before uplading"
    exit
    ;;

    *)
    ;;

  esac
  shift
done

## For all files within the BASE_DIR directory...
find $BASE_DIR -type f | while read FILE; do
  ## 1/ Get the virtual filename & file content type
  FILE_FULL=${FILE#$BASE_DIR}
  CONTENT_TYPE=`file -b --mime-type $FILE`

  ## 2/ If '-r|--remove-all-files' option present, remove all files from GridFS
  if [ $REMOVE_FILES = true ] ; then
    echo -e "] Removing all files from GridFS"
    mongo $DB_NAME --eval "db.getCollection('fs.files').remove({})" >/dev/null
    mongo $DB_NAME --eval "db.getCollection('fs.chunks').remove({})" >/dev/null
  fi

  ## 3/ Upload files into the GridFS
  echo "] Uploading file '$FILE' ($CONTENT_TYPE) to database '$DB_NAME' as '$FILE_FULL'"
  mongofiles put $FILE_FULL -l $FILE --db $DB_NAME  --type $CONTENT_TYPE --replace &>/dev/null
done