#!/usr/bin/perl -w
#
# Registration with ispell dictionary

use strict;

my $class = "ispell";
my $program = "installdeb-$class";
my $debug;

# =======================================================
# Main part
# =======================================================

use Text::Wrap;
$Text::Wrap::columns = 72;

use Debian::Debhelper::Dh_Lib;
use Debian::DictionariesCommon q(:all);
use Devel::DictionariesCommon q(:all);

if ( "$class" eq "wordlist" or "$class" eq "ispell" ){
  init( options => { 'write-elanguages'  => \$dh{WRITE_ELANGUAGES},
		     'no-elanguages'     => \$dh{DISABLE_ELANGUAGES},
		     'no-pre-post'       => \$dh{DISABLE_PREPOST},
		     'no-installdebconf' => \$dh{NO_INSTALLDEBCONF}
		   });
} elsif ( $class eq "aspell" ){
  init(options => { 'aspell-simple' => \$dh{ASPELL_SIMPLE} });
} else {
  init();
}

if ( $dh{NOSCRIPTS} ){
  $dh{DISABLE_PREPOST}++;
  $dh{NO_INSTALLDEBCONF}++;
};

delete $dh{WRITE_ELANGUAGES} if ( $dh{DISABLE_ELANGUAGES} );

foreach my $package (@{$dh{DOPACKAGES}}) {
  my $lib_dir       = tmpdir($package) . getlibdir($class);
  my $usr_lib_dir   = tmpdir($package) . "/usr/lib/$class";
  my $var_lib_dir   = tmpdir($package) . "/var/lib/$class";
  my $usr_share_dir = tmpdir($package) . "/usr/share/$class";
  my %options       = ('class'         => $class,
		       'program'       => $program,
		       'package'       => $package,
		       'lib_dir'       => $lib_dir,
		       'usr_lib_dir'   => $usr_lib_dir,
		       'var_lib_dir'   => $var_lib_dir,
		       'usr_share_dir' => $usr_share_dir
		      );

  # Obsolete "cdbs" snippets called installdeb-* scripts
  # unconditionally in case there was something for them.
  # Do not trigger an error if not found, just try next one.
  my $dicts = dico_process_infofile(\%options)
    or next;

  #

  # Install debhelper and debhelper-like auto-scripts
  unless ( $dh{NOSCRIPTS} or $dh{DISABLE_PREPOST}) {

    # Install normal autoscripts. While called earlier than autocompat
    # autoscripts, will be placed later in maintainer scripts.
    autoscript ($package, "postinst", "postinst-$class",
		"s/#PACKAGE#/$package/");
    autoscript ($package, "postrm", "postrm-$class",
		"s/#PACKAGE#/$package/");

    if ( $class eq "ispell" || $class eq "aspell" ){
      my %hash_extension   = ("ispell" => "hash", "aspell" => "rws");
      my $autocompat_info  = dico_process_autocompat($dicts,\%options);

      #

      if ( %{$autocompat_info->{'auto-compat'}} ){
	verbose_print("$program info:");
	if ( defined  $autocompat_info->{'auto-contents'}
	     && %{$autocompat_info->{'auto-contents'}} ){
	  verbose_print(" auto-contents: \"",join(', ',sort keys %{$autocompat_info->{'auto-contents'}}),"\"");
	}
	verbose_print(" auto-compat: \"",join(', ',sort keys %{$autocompat_info->{'auto-compat'}}),"\"");
	verbose_print(" auto-hash: \"",  join(', ',sort keys %{$autocompat_info->{'auto-hash'}}), "\"");
      }

      # Install autocompat autoscripts
      if ( %{$autocompat_info->{'auto-compat'}} ){
	dico_install_autocompat($autocompat_info,\%options);
      }
    }

    # Populate substvars $class:Depends
    dico_populate_substvars(\%options);
  }
  # -- Handle debconf stuff for this package
  unless ( $dh{NOSCRIPTS} ){
    dico_create_debconf_files($class,$package,$dicts);
    dico_installcleandebconf($package) unless ( $dh{NO_INSTALLDEBCONF} )
  }
  #
}


__END__

=head1 NAME

B<installdeb-ispell> - debhelper-like utility for
maintainers of ispell dictionary Debian packages

=head1 SYNOPSIS

 installdeb-ispell [debhelper options] [options]

=head1 DESCRIPTION

B<installdeb-ispell> is a
debhelper like program that is responsible for installing appropriate
debconf config and templates files and debhelper snippets in
an ispell dictionary
package, according to the Debian Spell Dictionaries and Tools Policy.

For more details, see
 /usr/share/doc/dictionaries-common-dev/dsdt-policy.txt.gz

The actions executed by
B<installdeb-ispell>
are the following:

=over

=item * Maintainer Scripts

B<installdeb-ispell>
installs the necessary scraps of code in the
F<postinst> and F<postrm> scripts.

=item * Language info file

B<installdeb-ispell>
also checks a file containing
ispell dictionary
information, called
F<debian/info-ispell>
or
F<debian/package.info-ispell>.
If this file is successfully parsed, it is installed in the
F</var/lib/dictionaries-common/ispell> directory.

=item * Substvars substitutions

This script will populate a F<substvars> file, so Depends line in
control file can contain
${ispell:Depends} to
automatically care for dictionaries-common dependencies.

This requires C<Build-Depends> on at least dictionaries-common-dev
1.23.0 and is highly recommended.

=item * Debconf files

=over

=item o templates and config files

B<installdeb-ispell> installs the Policy compliant
Debconf files from the information contained in the
F<info-ispell> file.
These files are created as
F<debian/config> (or F<debian/package.config>) and F<debian/templates>
(or F<debian/package.templates>).
No intervention is needed here,
since B<installdeb-ispell> will make a call to
dh_installdebconf(1).

If the package needs to have special code in the F<config> file,
the maintainer should supply files called F<debian/config.in>
(or F<debian/package.config.in>).
In the F<config.in> file, the string C<#DEBHELPER#> must appear
alone in one line and start at the first column.
B<installdeb-ispell> will replace that
token with the necessary Policy compliant code
(this works with F<config.in> is either a Bourne shell or Perl script).

If the package needs to define its own questions via the F<templates>
file the maintainer should either supply files F<debian/po-master.templates>
(or F<debian/package.po-master.templates>)
together with the appropriate
po files if the package handles template localization through po-debconf,
or F<debian/templates.in>
(or F<debian/package.templates.in>)
otherwise.
See the po-debconf(7) manual page for more details and remember that the
master templates name is now different.

The templates defined in the F<templates.in> or F<po-master.templates>
files are merged into the Policy compliant templates by
installdeb-ispell and a call to dh_installdebconf(1)
is internally done.

=item o The elanguages template field

This field is useful if you want to override the debconf languages string
with something different
(since the master string remains the same, this
will not trigger a new debconf call)
or if you really think that the languages string should be
internationalized for your package.
Note that for most packages the poor man default localization should
be enough, and translators should have another priorities.

installdeb-ispell default behavior is not adding an
C<elanguages> field to the templates file.
If you want it added you have
to call the script with the explicit B<--write-elanguages> option.

This field will be added with value taken from the C<Elanguage> entry in
the info file if present, or after the C<Language> value otherwise.
Note that this is useful only if:

=over

=item - You want to fix a buggy entry

In this case just fill the C<Elanguage> field in the info file with the
new value. This will be shown at the debconf prompt.

=item - You want to fully internationalize your entries

In this case some black magic is needed at first time for smooth use,

=over

=item (a) Run B<installdeb-{ispell,wordlist} --no-installdebconf
      --write-elanguages> for
      every package whose string should be internationalized.
      Edit the created F<.templates> files and remove the leading
      underscores in the elanguages entry if present.

=item (b) Run B<debconf-gettextize templates_to_be_internationalized>.
      Check that all the desired F<.templates> files are in
      F<debian/po/POTFILES.in> and remove old F<.config> and
      F<.templates> files.

=item (c) Run again B<installdeb-{ispell,wordlist} --no-installdebconf
      --write-elanguages> and B<debconf-updatepo>
      (no edit here)
      to remove references to non-translatable strings.
      Check that the desired strings are in the po master file
      (F<debian/po/templates.pot>)
      and remove F<.config> and F<.templates> files.
      You are done.
      If the master C<Elanguages> string is changed, repeat (c)
      afterward.

=back

=back

=back



=item * Extra installdeb-ispell options in Language info file

For benefit of ispell dictionaries using B<ispell-autobuildhash>,
B<installdeb-ispell> script will look for C<'auto-compat'> fields in
F<$dict.info-ispell>, containing base name(s) of your compat file(s).
If C<'auto-compat'> entry is found two debhelper snippets are added,
one to create/reset compatfile(s) in postinst and the other to remove
files in a removal list from postrm.
Removal list will contain compat file(s) and associated hash(es) with
the same basename.

F</usr/lib/ispell/$dict.hash -E<gt> /var/lib/ispell/$dict.hash>
symlinks are no longer created automatically by this script.
They are now created by new ispell-autobuildhash together with the
relevant hashes.
Make sure to depend on at least dictionaries-common 1.23
(See F<dictionaries-common.checklist>). 

=back

=head1 OPTIONS

The usual dephelper(1) options are accepted. Options below are specific
to B<installdeb-ispell>

=over

=item B<--no-installdebconf>

Do not run B<dh_installdebconf> nor remove templates and config file.

=item B<--no-pre-post>

Do not install {pre,post}{inst,rm} snippets.

=item B<--write-elanguages>

Create the elanguages stuff.

=item B<--debug>

Show some extra info.

=back


=head1 NOTES

This program is not part of debhelper, although it is intended to be used
in ispell dictionary packages using debhelper in its
building.

=head1 SEE ALSO

debhelper(1),
dictionaries-common.checklist,
dsdt-policy.txt

This program is part of the dictionaries-common-dev package.
It is intended to be used by maintainers of
ispell dictionary
packages for Debian. See the documentation
under /usr/share/doc/dictionaries-common-dev.

=head1 AUTHORS

Rafael Laboissiere, Agustin Martin

=cut

# Local Variables:
#  mode: flyspell-prog
#  mode: perl
#  ispell-local-dictionary: "american"
# End:

#  LocalWords:  aspell ispell wordlist debconf debhelper Debian config postrm
#  LocalWords:  debian elanguages installdeb dephelper installdebconf Elanguage
#  LocalWords:  Laboissiere
