applets/usage_compressed

   1 #!/bin/sh
   2
   3 target="$1"
   4 loc="$2"
   5
   6 test "$target" || exit 1
   7 test "$loc" || loc=.
   8 test -x "$loc/usage" || exit 1
   9 test "$SED" || SED=sed
  10 test "$DD" || DD=dd
  11
  12 # Some people were bitten by their system lacking a (proper) od
  13 od -v -b </dev/null >/dev/null
  14 if test $? != 0; then
  15         echo 'od tool is not installed or cannot accept "-v -b" options'
  16         exit 1
  17 fi
  18
  19 exec >"$target.$$"
  20
  21 echo '#define UNPACKED_USAGE "" \'
  22 "$loc/usage" | od -v -b \
  23 | grep -v '^ ' \
  24 | $SED -e 's/^[^ ]*//' \
  25         -e 's/ //g' \
  26         -e '/^$/d' \
  27         -e 's/\(...\)/\\\1/g' \
  28         -e 's/^/"/' \
  29         -e 's/$/" \\/'
  30 echo ''
  31 # "grep -v '^ '" is for toybox's od bug: od -b prints some extra lines:
  32 #0000000 010 000 010 000 133 055 144 146 135 040 133 055 143 040 103 117
  33 #         000010 000010 026533 063144 020135 026533 020143 047503
  34 #0000020 116 106 104 111 122 135 040 133 055 154 040 114 117 107 106 111
  35 #         043116 044504 056522 055440 066055 046040 043517 044506
  36 #0000040 114 105 135 040 133 055 141 040 101 103 124 111 117 116 106 111
  37 #         042514 020135 026533 020141 041501 044524 047117 044506
  38
  39 echo "#define UNPACKED_USAGE_LENGTH `$loc/usage | wc -c`"
  40 echo
  41
  42 echo '#define PACKED_USAGE \'
  43 ## Breaks on big-endian systems!
  44 ## # Extra effort to avoid using "od -t x1": -t is not available
  45 ## # in non-CONFIG_DESKTOPed busybox od
  46 ##
  47 ## "$loc/usage" | bzip2 -1 | od -v -x \
  48 ## | $SED -e 's/^[^ ]*//' \
  49 ##      -e 's/ //g' \
  50 ##      -e '/^$/d' \
  51 ##      -e 's/\(..\)\(..\)/0x\2,0x\1,/g'
  52 ##      -e 's/$/ \\/'
  53 "$loc/usage" | bzip2 -1 | $DD bs=2 skip=1 2>/dev/null | od -v -b \
  54 | grep -v '^ ' \
  55 | $SED -e 's/^[^ ]*//' \
  56         -e 's/ //g' \
  57         -e '/^$/d' \
  58         -e 's/\(...\)/0\1,/g' \
  59         -e 's/$/ \\/'
  60 echo ''
  61
  62 mv -- "$target.$$" "$target"