bootstrap/darwindiskimage

   1 #!/bin/sh
   2 #
   3 # $NetBSD$
   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 fstype fs osmajor file mountedname megabytes device
  23         [ $# -eq 2 ] || die 1 "Usage: $0 create <file> <megabytes>"
  24
  25         # Use case-sensitive HFS+ where available (Darwin >= 7)
  26         fstype='Apple_UFS'
  27         fs='UFS'
  28         osmajor=`uname -r | awk 'BEGIN {FS="."} {print $1}'`
  29         if [ ${osmajor} -ge 7 ]; then
  30                 fstype='Apple_HFSX'
  31                 fs='HFSX'
  32         fi
  33
  34         file="`_normalize_filename \"$1\"`"
  35         mountedname="`basename \"${file}\" .dmg`"
  36         megabytes=$2
  37
  38         # create
  39         hdiutil create -quiet "${file}" -megabytes ${megabytes} \
  40                 -partitionType ${fstype} -layout SPUD -fs ${fs}
  41
  42         # rename
  43         device=`_getdevice_and_halfway_mount "${file}"`
  44         hdiutil mount "${file}"
  45         disktool -n "${device}" "${mountedname}"
  46         hdiutil eject -quiet "${device}"
  47 }
  48
  49 dmg_mount()
  50 {
  51         local file device exitcode
  52         [ $# -eq 1 ] || die 1 "Usage: $0 mount <file>"
  53
  54         file="`_normalize_filename \"$1\"`"
  55
  56         hdiutil mount ${file}
  57 }
  58
  59
  60 dmg_umount()
  61 {
  62         local mountpoint device
  63         [ $# -eq 1 ] || die 1 "Usage: $0 umount <mount-point>"
  64
  65         mountpoint="$1"
  66         device=`mount | grep "${mountpoint} (local" | _getdevicebasename`
  67
  68         [ "${device}" ] || die 1 "error: no device mounted at ${mountpoint}"
  69
  70         hdiutil eject -quiet "${device}"
  71 }
  72
  73 die()
  74 {
  75         local exitcode
  76         exitcode=$1; shift
  77         warn "$@"
  78         exit ${exitcode}
  79 }
  80
  81 warn()
  82 {
  83         echo >&2 "$@"
  84 }
  85
  86 try()
  87 {
  88         exitcode=$1; shift
  89         action=$1; shift
  90         error=`"${action}" "$@" 2>&1` || die ${exitcode} "${error}"
  91 }
  92
  93 main()
  94 {
  95         [ $# -eq 0 ] && die 1 "Usage: $0 <create|mount|umount>"
  96         ACTION="$1"; shift
  97         case ${ACTION} in
  98                 create|mount|umount)
  99                         try 1 "dmg_${ACTION}" "$@"
 100                         return 0
 101                         ;;
 102                 *)
 103                         die 1 "Usage: $0 <create|mount|umount>"
 104                         ;;
 105         esac
 106 }
 107
 108 PATH=${PATH}:/sbin:/usr/sbin
 109 main "$@"
 110 exit $?