llppac

   1 #!/bin/sh
   2
   3 set -e
   4
   5 CACHEDIR=$HOME/.cache/llpp
   6
   7 die() {
   8     echo "$1" >&2
   9     exit 1
  10 }
  11
  12 executable_p() {
  13     command -v $1 >/dev/null 2>&1
  14 }
  15
  16 trap '! test -z $casp && rm -f $casp' 0
  17
  18 test -d $CACHEDIR || die "cache directory $CACHEDIR does not exist"
  19 while getopts m: opt; do
  20     case "$opt" in
  21         m) mime="$OPTARG";;
  22         ?)
  23         die "usage: $0 [-m mime/type] path";
  24         exit 1;;
  25     esac
  26 done
  27 shift $(($OPTIND - 1))
  28 test -z "$1" && die "usage $0: path"
  29
  30 ft=$(file -L --mime-type -b "$1") || die "$ft"
  31
  32 case $ft in
  33     application/x-gzip) dc=zcat;;
  34     application/x-xz) dc=xzcat;;
  35     application/x-bzip2) dc=bzcat;;
  36     *) unset dc || true;;
  37 esac
  38
  39 test -z $dc || ft=$(file -L --mime-type -bz "$1") || die "$ft"
  40
  41 filt='${dc-cat} "$1" |'
  42
  43 mime=${mime:-$ft}
  44 case $mime in
  45     application/postscript) conv='ps2pdf - $casp';;
  46     application/pdf) test -z $dc && exec llpp "$@" || conv='cat >$casp';;
  47     image/vnd.djvu) conv='djvups - | ps2pdf - $casp';;
  48     text/html) {
  49         ! test -z $dc && die "can not convert compressed $mime"
  50         unset filt
  51         conv='prince "$1" -o $casp'
  52     };;
  53     application/msword) {
  54         if executable_p unoconv && test -z $dc; then
  55             unset filt
  56             conv='unoconv -o $casp "$1"'
  57         else
  58             conv='antiword -m 8859-1.txt -a a4 - >$casp'
  59         fi
  60     };;
  61     application/vnd.openxmlformats-officedocument.* \
  62     | application/vnd.oasis.opendocument.*) {
  63         ! test -z $dc && die "can not convert compressed $mime"
  64         unset filt
  65         conv='unoconv -o $casp "$1"'
  66     };;
  67     image/svg+xml) {
  68         executable_p rsvg-convert \
  69             && conv='rsvg-convert -f pdf -o $casp' \
  70             || conv='inkscape -z -A $casp -'
  71     };;
  72     image/*) conv='convert - pdf:$casp';;
  73     application/x-dvi) {
  74         ! test -z $dc && die "can not convert compressed $mime"
  75         unset filt
  76         conv='dvipdf $1 $casp'
  77     };;
  78     *) die "unhandled file type: $mime";;
  79 esac
  80
  81 hash=$(md5sum "$1") || die "$hash"
  82 casp="$CACHEDIR/${hash%% *}"
  83 test -e $casp || eval "$filt" "$conv"
  84
  85 exec llpp -origin "$@" $casp