bootstrap/ufsdiskimage

   1 #!/bin/sh
   2 #
   3 # $NetBSD: ufsdiskimage,v 1.2 2002/07/26 21:26:18 schmonz Exp $
   4
   5 _getdevice_and_halfway_mount()
   6 {
   7         hdid -nomount "$1" | _getdevicebasename | tail -1
   8 }
   9
  10 _getdevicebasename()
  11 {
  12         awk '{print $1}' | sed -e 's|^/dev/||'
  13 }
  14
  15 _normalize_filename()
  16 {
  17         echo "$1" | sed -e 's|\.dmg$||' -e 's|$|.dmg|'
  18 }
  19
  20 dmg_create()
  21 {
  22         local file mountedname megabytes device
  23         [ $# -eq 2 ] || die 1 "Usage: $0 create <file> <megabytes>"
  24
  25         file="`_normalize_filename \"$1\"`"
  26         mountedname="`basename \"${file}\" .dmg`"
  27         megabytes=$2
  28
  29         # create
  30         hdiutil create -quiet "${file}" -megabytes ${megabytes} \
  31                 -partitionType Apple_UFS -layout SPUD
  32
  33         # format
  34         device=`_getdevice_and_halfway_mount "${file}"`
  35         newfs ${device}
  36         hdiutil eject -quiet "${device}"
  37
  38         # rename
  39         hdiutil mount "${file}"
  40         disktool -n "${device}" "${mountedname}"
  41         hdiutil eject -quiet "${device}"
  42         # mountpoint="`hdiutil mount -verbose '${file}' | grep -A 1 '<key>mount-point</key>' | grep -v '<key>mount-point</key>' | sed -e 's|<string>||' -e 's|</string>||' | awk '{print $1}'`"
  43         # mount | grep '^/dev/disk1' | awk '{print $3}' | sed -e 's|^/Volumes/||'
  44 }
  45
  46 dmg_mount()
  47 {
  48         local file device exitcode
  49         [ $# -eq 1 ] || die 1 "Usage: $0 mount <file>"
  50
  51         file="`_normalize_filename \"$1\"`"
  52
  53         hdiutil mount ${file}
  54 }
  55
  56
  57 dmg_umount()
  58 {
  59         local mountpoint device
  60         [ $# -eq 1 ] || die 1 "Usage: $0 umount <mount-point>"
  61
  62         mountpoint="$1"
  63         device=`mount | grep "${mountpoint} (local" | _getdevicebasename`
  64
  65         [ "${device}" ] || die 1 "error: no device mounted at ${mountpoint}"
  66
  67         hdiutil eject -quiet "${device}"
  68 }
  69
  70 die()
  71 {
  72         local exitcode
  73         exitcode=$1; shift
  74         warn "$@"
  75         exit ${exitcode}
  76 }
  77
  78 warn()
  79 {
  80         echo >&2 "$@"
  81 }
  82
  83 try()
  84 {
  85         exitcode=$1; shift
  86         action=$1; shift
  87         error=`"${action}" "$@" 2>&1` || die ${exitcode} "${error}"
  88 }
  89
  90 main()
  91 {
  92         [ $# -eq 0 ] && die 1 "Usage: $0 <create|mount|umount>"
  93         ACTION="$1"; shift
  94         case ${ACTION} in
  95                 create|mount|umount)
  96                         try 1 "dmg_${ACTION}" "$@"
  97                         return 0
  98                         ;;
  99                 *)
 100                         die 1 "Usage: $0 <create|mount|umount>"
 101                         ;;
 102         esac
 103 }
 104
 105 main "$@"
 106 exit $?