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 executable_p() {
  16     command -v $1 >/dev/null 2>&1
  17 }
  18
  19 trap '! test -z $casp && rm -f $casp' 0
  20
  21 test -d $CACHEDIR || die "cache directory %s does not exist" $CACHEDIR
  22 test -z "$1" && die "usage %s: path" $0
  23
  24 ft=$(file --mime-type -b "$1")
  25
  26 case $ft in
  27     application/x-gzip) dc=zcat;;
  28     application/x-xz) dc=xzcat;;
  29     application/x-bzip2) dc=bzcat;;
  30     *) unset dc;;
  31 esac
  32
  33 test -z $dc || ft=$(file --mime-type -bz "$1")
  34
  35 case $ft in
  36     application/postscript) conv='ps2pdf - $casp';;
  37     application/pdf) test -z $dc && exec llpp "$1" || conv='cat >$casp';;
  38     image/vnd.djvu) conv='djvups - | ps2pdf - $casp';;
  39     application/msword) conv='antiword -m 8859-1.txt -a a4 - >$casp';;
  40     image/svg+xml) {
  41         executable_p rsvg-convert \
  42             && conv='rsvg-convert -f pdf -o $casp' \
  43             || conv='inkscape -z -A $casp -'
  44     };;
  45     application/x-dvi) {
  46         test -z $dc || die "can not handle compressed DVIs"
  47         conv='dvipdf - $casp'
  48     };;
  49     *) die "unhandled file type: %s" $ft;;
  50 esac
  51
  52 hash=$(md5sum "$1" | cut -f 1 -d\ )
  53 casp="$CACHEDIR/$hash"
  54 test -e $casp ||
  55 eval "${dc-cat} \"$1\" | $conv"
  56
  57 exec llpp -origin "$1" $casp