automount-zsh.sh

#!/usr/bin/env zsh

TEMP=$(getopt -o 'shlum' --long  'help' -n 'automount.shy' -- "$@")
if [ $? -ne 0 ]; then
  echo 'getopt failed: $!' >&2
  exit 1
fi
eval set -- "${TEMP}"
unset TEMP


CONFIGFILE="${HOME}/automount_config"
TODO=list
SHOW=

while true; do
  case "$1" in
    '-s')
      shift
      SHOW="show"
      continue
    ;;
    '-l')
      shift
      TODO="list"
      continue
    ;;
    '-m')
      shift
      TODO="mount"
      continue
    ;;
    '-u')
      shift
      TODO="unmount"
      continue
    ;;
    '-h'|'--help')
      echo "Usage:"
      echo "  $0 [options] [pattern]"
      echo "    -l list"
      echo "    -m mount"
      echo "    -u unmount"
      echo "    -s show commands"
      echo "    [pattern] shows mount matches"
      shift
      exit 0
    ;;
    '--')
      shift
      break
    ;;
    *)
      echo 'Internal error!' >&2
      exit 1
    ;;
  esac
done

if [ ! -z $1 ]; then
 PATTERN=$1
 shift
fi

for arg; do
  PATTERN=${PATTERN}"|"$arg
done

# l list
# m mount
# u unmount

#     "sshfs -o reconnect -o idmap=user bee@macheteinfach.molgen.mpg.de:/project/beehive /home/wwwutz/project/beehive"

declare -a SSH

if [ -e $CONFIGFILE ]; then
  . $CONFIGFILE
else
  print "missing config file $CONFIGFILE"
  exit 1
fi

ROOT=${HOME}

if [ -z ${PATTERN} ]; then
  # kein pattern, liste alle
  case "${TODO}" in
    'list'|'unmount')
      PATTERN="/"
      ;;
    'mount')
      echo "mount needs pattern"
      exit 1
      ;;
    *)
      echo 'Internal error!' >&2
      exit 1
    ;;
  esac
fi

declare -A FSTYPE

FSTYPE=( [macfuse]=OK [nodir]='-' [notmounted]='-' )
GUID=$( id -g )

for AMD in "${SSH[@]}"; do
  if [[ "${AMD}" =~ "${PATTERN}" ]]; then

    SRC="${AMD% *}"
    DST="${AMD//* }"
    if [ "${DST}" = "${SRC}" ]; then
      DST="${HOME}${AMD//*:}"
    fi

    if [ -d "${DST}" ]; then
      STAT=( "$( mount | awk -v dst=$DST '$3 == dst {print $4}' | tr -cd '[[a-zA-Z]]' )" )
      # macfuse == already mounted
      if [[ "x$STAT" == "x" ]]; then
       STAT='notmounted'
      fi
    else
      STAT='nodir'
    fi

    if [ -n "$SHOW" ]; then
      echo -n '# '
    fi

    if [ $TODO = "list" ]; then
     if [ $STAT = "macfuse" ]; then
      printf "%-12s %3s %s on %s\n" ${DST##*/} ${FSTYPE[${STAT}]} ${SRC} ${DST}
     else 
      printf "%-12s %3s %s\n" ${DST##*/} ${FSTYPE[${STAT}]} ${SRC}
     fi
    fi

    if [ $TODO = "mount" ]; then

      if [ $STAT != "macfuse" ]; then
        if [ "$STAT" = "nodir" ]; then
          CMD="mkdir -vp ${DST}"
          if [ $SHOW ]; then
             echo "${CMD}"
          else
            ${CMD}
          fi
        fi
        CMD="sshfs -o reconnect -o idmap=user -o uid=${UID} -g gid=${GUID} ${SRC} ${DST}"
        if [ -n "$SHOW" ]; then
           echo "${CMD}"
        else
          echo "mounting ${SRC} to ${DST}"
          eval ${CMD}
        fi
      fi
    fi

    if [ $TODO = "unmount" ]; then

      if [ $STAT = "macfuse" ]; then
        CMD="umount -v ${DST}"
        if [ -n "$SHOW" ]; then
           echo "${CMD}"
        else
          echo "unmounting ${DST}"
          eval ${CMD}
        fi
      fi
    fi

  fi
done