llppac

   1 #!/bin/sh
   2
   3 set -e
   4
   5 CACHEDIR=$HOME/.config/llpp
   6
   7 die()
   8 {
   9     echo "$1" >&2
  10     exit 1
  11 }
  12
  13 executable_p() {
  14     command -v $1 >/dev/null 2>&1
  15 }
  16
  17 trap '! test -z $casp && rm -f $casp' 0
  18
  19 test -d $CACHEDIR || die "cache directory $CACHEDIR does not exist"
  20 while getopts m: opt; do
  21     case "$opt" in
  22         m) mime="$OPTARG";;
  23         ?)
  24         die "usage: $0 [-t mime/type] path";
  25         exit 1;;
  26     esac
  27 done
  28 shift $(($OPTIND - 1))
  29 test -z "$1" && die "usage $0: path"
  30
  31 ft=$(file -L --mime-type -b "$1") || die "$ft"
  32
  33 case $ft in
  34     application/x-gzip) dc=zcat;;
  35     application/x-xz) dc=xzcat;;
  36     application/x-bzip2) dc=bzcat;;
  37     *) unset dc || true;;
  38 esac
  39
  40 test -z $dc || ft=$(file -L --mime-type -bz "$1") || die "$ft"
  41
  42 filt='${dc-cat} "$1" |'
  43
  44 mime=${mime:-$ft}
  45 case $mime in
  46     application/postscript) conv='ps2pdf - $casp';;
  47     application/pdf) test -z $dc && exec llpp "$1" || conv='cat >$casp';;
  48     image/vnd.djvu) conv='djvups - | ps2pdf - $casp';;
  49     text/html) {
  50         ! test -z $dc && die "can not convert compressed $mime"
  51         unset filt
  52         conv='prince "$1" -o $casp'
  53     };;
  54     application/msword) {
  55         if executable_p unoconv && test -z $dc; then
  56             unset filt
  57             conv='unoconv -o $casp "$1"'
  58         else
  59             conv='antiword -m 8859-1.txt -a a4 - >$casp'
  60         fi
  61     };;
  62     application/vnd.openxmlformats-officedocument.*) {
  63         if executable_p unoconv; then
  64             ! test -z $dc && die "can not convert compressed $mime"
  65             unset filt
  66             conv='unoconv -o $casp "$1"'
  67         else
  68             die 'unoconv not found'
  69         fi
  70     };;
  71     image/svg+xml) {
  72         executable_p rsvg-convert \
  73             && conv='rsvg-convert -f pdf -o $casp' \
  74             || conv='inkscape -z -A $casp -'
  75     };;
  76     image/*) conv='convert - pdf:$casp';;
  77     application/x-dvi) {
  78         ! test -z $dc && die "can not convert compressed $mime"
  79         unset filt
  80         conv='dvipdf $1 $casp'
  81     };;
  82     *) die "unhandled file type: $mime";;
  83 esac
  84
  85 hash=$(set - $(md5sum "$1"); printf $1)
  86 casp="$CACHEDIR/$hash"
  87 test -e $casp || eval "$filt" "$conv"
  88
  89 origin="$1"
  90 shift
  91 exec llpp -origin "$origin" $casp "$@"