Re: mailcap next step

[mcINEK <kaioshin@gazeta.pl>]

I'm attaching two scripts. One just converts 'old' 
/usr/lib/mime/packages/ directory to 'new' one. Why I'll explain later.
Next is replacement for update-mime script to use 'new' format. It
generates full compatible mailcap file, but inserts just one application
(x and non x) for each mime type. I think this solution isn't worse than
original. Although this script has one *big* disadvantage... It's shell
script and it's very slow. I'm sorry but I don't know perl. Nevertheless
it can't be improved, it's just a sample.

Now, why I think my structure of files in /usr/lib/mime/packages is
better. It's very simple to take control of it. System wide script (my
update-mime2) looks at .default files for each type and puts into
mailcap. If it doesn't find defaults (admin didn't choose one) it puts
first from directory (such as old one). In conclusion, we see that we
generally don't loose usability but we're getting new one. Of course,
this script propably doesn't use all of original update-mime features,
because I don't even know them, but I can be improved.

In contrast the 'power' of this special directory structure is appearing
for user, not administrator. It's very easy to write a frontend to
select apps from that tree. For each type it can show user all
posibilities and extra show administrator suggestion (.default). Then in
*simple* way it'd generate ~/.mailcap file.

As we see, we don't loose usability, even compatibility. I replaced just
one script, and provide converter for temporary. Please, look at it, and
thinks is it interesting. Say rather about 'idealogic' solution, not
technically scripts, because they can be improved by someone, who's good
at it.

PS. I'm now using this on my computer and I don't have any problems. I
work know on a kind of frontend.

PS2. For tests, you can change directiories in scripts vars.

Regards,
Marcin.
-- 
      .---,             --:   mcINEK   :--
     /  ,. \   '   T h e   O w l s  a r e  n o t     
    |  |  ; ;    W h a t   T h e y   S e e m . . .   '
     \ `._ /        wrote on Debian GNU/Linux SID

#! /bin/bash
#
# This sctipt is a replacment for update-mime.
# It uses new format of /usr/lib/mime/packages dir.
#
# Author: mcINEK <kaioshin@gazeta.pl>
#

if [ -x /usr/sbin/update-mimedir ]; then
  /usr/sbin/update-mimedir
fi

mime_dirs="/usr/lib/mime/packages"
mailcap="/etc/mailcap" 

dirs=`find $mime_dirs -type d | sort`

if [ "$mime_dirs" == "" ]; then
  echo "Is /usr/lib/mime/packages using new format?"
  exit
fi

echo "# File generated by update-mime2 script." > $mailcap
echo >> $mailcap

for dir in $dirs; do
  [ ! "$dir" == "$mime_dirs" ] || continue
  dir=`echo "$dir" | awk -F\/ '{ print $NF}'`
  cd "$mime_dirs/$dir"
  # check, if there's any program
  [ ! "`ls`" == "" ] || continue
  # looking for non x program, sed to make sure if chosen only one
  x_program=`ls x.*.default 2> /dev/null | sed q1`
  if [ ! "$x_program" ]; then
    # choose first available
    x_program=`ls x.* 2> /dev/null | sed q1`
  fi
  # if not will use terminal program

  # chech for a default term program
  term_program=`ls --ignore='x.*' 2> /dev/null | grep .*.default | sed q1`
  if [ ! "$term_program" ]; then
    term_program=`ls --ignore='x.*' 2> /dev/null | sed q1`
  fi

  mime_type=`echo $dir | sed 's/\./\//'`
  
  #echo "X - $x_program         T - $term_program"
  
  if [ "$x_program" ]; then
    echo "$mime_type; `cat $mime_dirs/$dir/$x_program`" >> $mailcap
  fi
  if [ "$term_program" ]; then
    echo "$mime_type; `cat $mime_dirs/$dir/$term_program`" >> $mailcap
  fi
      
  echo >> $mailcap
  
  echo -n .
done

echo 

#! /bin/bash
#
# This script converts old /usr/lib/mime/packages
# to new format.
#
# Author mcINEK <kaioshin@gazeta.pl>
#

mimedirs="/usr/lib/mime/packages"
new_mimedirs=$mimedirs

files=`find $mimedirs -type f -maxdepth 0 | awk -F\/ '{ print $NF  }'`

[ ! "$files" == "" ] || exit

for file in $files; do
  while read line; do
    [ ! "$line" == "" ] || continue
    mime_type=`echo $line | awk -F\; '{ print $1 }'`
    mime_dir=`echo $mime_type | sed 's/\//./'`
#    echo $mime_type # choose one of two: this
    echo -n .       # or this
    mkdir "$new_mimedirs/$mime_dir" 2> /dev/null
    if [ "`echo $line | grep DISPLAY`" == "" ]; then
      echo $line | awk -F' ' '{ for(i=2;i<=NF;i++) {printf("%s ",$i)} }' \
        > "$new_mimedirs/$mime_dir/$file"
    else
      echo $line | awk -F' ' '{ for(i=2;i<=NF;i++) {printf("%s ",$i)} }' \
        > "$new_mimedirs/$mime_dir/x.$file"
    fi	    
  done < "$mimedirs/$file"
  rm "$mimedirs/$file" 2> /dev/null
done

echo

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