llppac

   1 #!/bin/sh
   2
   3 set -e
   4
   5 CACHEDIR=$HOME/.config/llpp
   6
   7 die()
   8 {
   9     fmt=$1
  10     shift
  11     printf "$fmt\n" "$*" >&2
  12     exit 1
  13 }
  14
  15 trap '! test -z $casp && rm -f $casp' 0
  16
  17 test -d $CACHEDIR || die "cache directory %s does not exist" $CACHEDIR
  18 test -z "$1" && die "usage %s: path" $0
  19
  20 ft=$(file --mime-type -b "$1")
  21
  22 case $ft in
  23     application/x-gzip) dc=zcat;;
  24     application/x-xz) dc=xzcat;;
  25     application/x-bzip2) dc=bzcat;;
  26     *) unset dc;;
  27 esac
  28
  29 test -z $dc || ft=$(file --mime-type -bz "$1")
  30
  31 case $ft in
  32     application/postscript) conv='ps2pdf $1 $casp';;
  33     application/pdf) {
  34         test -z $dc && exec llpp "$1" || conv='cat >$casp'
  35     };;
  36     application/msword) conv='antiword -p a4 $1 | ps2pdf - $casp';;
  37     image/vnd.djvu) conv='djvups $1 | ps2pdf - $casp';;
  38     image/svg+xml) conv='inkscape -z -A $casp $1';;
  39     application/x-dvi) {
  40         test -z $dc || die "can not handle compressed DVIs";
  41         conv='dvipdf $1 $casp'
  42     };;
  43     *) die "unhandled file type: %s" $ft;;
  44 esac
  45
  46 hash=$(md5sum "$1" | cut -f 1 -d\ )
  47
  48 casp="$CACHEDIR/$hash"
  49
  50 if ! test -e $casp; then
  51     test -z $dc && cmd="$conv" || cmd="$dc \"$1\" | $conv"
  52     eval "$cmd"
  53 fi
  54 exec llpp -origin "$1" $casp