diskutil

# Bash completion for diskutil
# by Tony Williams, honestpuck@gmail.com
# version 0.3
# 23/05/2017

__du_comp_words_include() {
  local i=1
  while [[ "$i" -lt "$COMP_CWORD" ]]
  do
    if [[ "${COMP_WORDS[i]}" = "$1" ]]
    then
      return 0
    fi
    i="$((++i))"
  done
  return 1
}

__du_comp() {
  # break $1 on space, tab, and newline characters,
  # and turn it into a newline separated list of words
  local list s sep=$'\n' IFS=$' '$'\t'$'\n'
  local cur="${COMP_WORDS[COMP_CWORD]}"

  for s in $1
  do
    __du_comp_words_include "$s" && continue
    list="$list$s$sep"
  done

  IFS="$sep"
  COMPREPLY=($(compgen -W "$list" -- "$cur"))
}

_du_list() {
  __du_comp "-plist internal external physical virtual"
  return
}

_du_info() {
  local cur="${COMP_WORDS[COMP_CWORD]}"
  case "$cur" in
    -*)
      __du_comp "-all -plist"
      return
      ;;
  esac
}

_du_activity() {
  return
}


_du_listFilesystems() {
  local cur="${COMP_WORDS[COMP_CWORD]}"
  case "$cur" in
    -*)
      __du_comp "-plist"
      return
      ;;
  esac
}

_du_unmount() {
  __du_comp "force"
  return
}

_du_unmountDisk() {
  __du_comp "force"
  return
}

_du_eject() {
  return
}

_du_mount() {
  __du_comp "readOnly -mountPoint"
  return
}

_du_mountDisk() {
  return
}

_du_rename() {
  return
}

_du_enableJournal() {
  return
}

_du_disableJournal() {
  __du_comp "force"
  return
}

_du_moveJournal() {
  __du_comp "external internal"
  return
}

_du_enableOwnership() {
  return
}

_du_disableOwnership() {
  return
}

_du_verifyVolume() {
  return
}

_du_repairVolume() {
  return
}

_du_verifyDisk() {
  return
}

_du_repairDisk() {
  return
}

_du_eraseVolume() {
  __du_comp "APFS ExFAT FAT16 FAT32 HFS+ hfsx jhfsx jhfs+ readOnly -mountPoint"
  return
}

_du_eraseDisk() {
  __du_comp "APFS ExFAT FAT16 FAT32 HFS+ hfsx jhfsx jhfs+ APM MBR GPT"
  return
}

_du_reformat() {
  return
}

_du_eraseOptical() {
  __du_comp "quick"
  return
}

_du_zeroDisk() {
  __du_comp "force"
  return
}

_du_randomDisk() {
  return
}

_du_secureErase() {
  __du_comp "freespace"
  return
}

_du_partitionDisk() {
  __du_comp "APFS ExFAT FAT16 FAT32 HFS+ hfsx jhfsx jhfs+ APM MBR GPT"
  return
}

_du_resizeVolume() {
  __du_comp "limits mapsize R APFS ExFAT FAT16 FAT32 HFS+ hfsx jhfsx jhfs+ "
  return
}

_du_splitPartition() {
  __du_comp "APFS ExFAT FAT16 FAT32 HFS+ hfsx jhfsx jhfs+ "
  return
}

_du_mergePartitions() {
  __du_comp "force"
  return
}

_du_appleRAID() {
  local cur="${COMP_WORDS[COMP_CWORD]}"
  case "$cur" in
    -*)
    __du_comp "-plist"
    return
    ;;
  esac
  __du_comp "list create mirror stripe concat delete repairMirror add remove enable update"
}

_du_APFS() {
  local cur="${COMP_WORDS[COMP_CWORD]}"
  case "$cur" in
    -*)
      __du_comp "-plist -fileencryption -effaceable -reserve -quota -role -nomount \
      -mountpoint"
      return
      ;;
  esac
  __du_comp "list create createContainer deleteContainer resizeContainer addVolume \
    addVolume deleteVolume eraseVolume changeVolumeRole defragment"
}

_du_coreStorage() {
  local cur="${COMP_WORDS[COMP_CWORD]}"
  case "$cur" in
    -*)
      __du_comp "-plist -stdinpassphrase -passphrase -recoverykeychain -nomount \
        -oldpassphrase -newpassphrase "
      return
      ;;
  esac
  __du_comp "list info convert revert createLVG deleteLVG renameLVG createLV \
    deleteLV encryptLV decryptLV unlockLV changeVolumePassphrase resizeLV \
    resizeDisk resizePV resizeStack"
}

_diskutil() {
  local cur prev opts
  COMPREPLY=()
  cur="${COMP_WORDS[COMP_CWORD]}"
  prev="${COMP_WORDS[COMP_CWORD-1]}"

  if [[ "$COMP_CWORD" = "1" ]] # we are matching the command
  then
    opts="list info activity listFilesystems unmount unmountDisk eject mount mountDisk \
      rename enableJournal disableJournal moveJournal enableOwnership disableOwnership \
      verifyVolume repairVolume verifyDisk repairDisk eraseVolume eraseDisk reformat \
      eraseOptical zeroDisk randomDisk secureErase partitionDisk resizeVolume \
      splitPartition mergePartitions APFS appleRAID coreStorage "
    COMPREPLY=( $(compgen -W "${opts}" ${cur}) )
    return 0
  fi

  cmd="${COMP_WORDS[1]}"
    
  case "$cmd" in
	list) _du_list ;;
	info) _du_info ;;
	activity) _du_activity ;;
	listFilesystems) _du_listFilesystems ;;
	unmount) _du_unmount ;;
	unmountDisk) _du_unmountDisk ;;
	eject) _du_eject ;;
	mount) _du_mount ;;
	mountDisk) _du_mountDisk ;;
	rename) _du_rename ;;
	enableJournal) _du_enableJournal ;;
	disableJournal) _du_disableJournal ;;
	moveJournal) _du_moveJournal ;;
	enableOwnership) _du_enableOwnership ;;
	disableOwnership) _du_disableOwnership ;;
	verifyVolume) _du_verifyVolume ;;
	repairVolume) _du_repairVolume ;;
	verifyDisk) _du_verifyDisk ;;
	repairDisk) _du_repairDisk ;;
	eraseVolume) _du_eraseVolume ;;
	eraseDisk) _du_eraseDisk ;;
	reformat) _du_reformat ;;
	eraseOptical) _du_eraseOptical ;;
	zeroDisk) _du_zeroDisk ;;
	randomDisk) _du_randomDisk ;;
	secureErase) _du_secureErase ;;
	partitionDisk) _du_partitionDisk ;;
	resizeVolume) _du_resizeVolume ;;
	splitPartition) _du_splitPartition ;;
	mergePartitions) _du_mergePartitions ;;
	APFS) _du_APFS ;;
	apfs) _du_APFS ;;
	appleRAID) _du_appleRAID ;;
	coreStorage) _du_coreStorage ;;
  esac
}

complete -o bashdefault -o default -F _diskutil diskutil