Viewing file:  dc-debconf-select.pl (7.38 KB) -rw-r--r--
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# ---------------------------------------------------------------------------
# dc-debconf-select.pl:
# This file will be added to end of dictionaries-common.config-base
# to make dictionaries-common.config, as well as installed under
# /usr/share/dictionaries-common for single ispell dicts/wordlists use
# ---------------------------------------------------------------------------
sub dico_get_packages (){
# Get list of packages sharing the question
my $class = shift;
my $question = "shared/packages-$class";
my ($errorcode,$packages) = metaget ($question, "owners");
return [ split (/\s*,\s*/, $packages) ] unless $errorcode;
}
sub dico_parse_languages (){
# Get a hash reference of package -> list of (e)languages provided by package
my $class = shift;
my $variant = shift;
my $packages = shift;
my %tmphash = ();
die "No variant (languages|elanguages) string supplied\n" unless $variant;
$packages = &dico_get_packages($class) unless $packages;
foreach $pkg ( @$packages ){
my ($errorcode, $entry ) = metaget("$pkg/$variant", "default");
unless ( $errorcode ){
$entry =~ s/^\s+//;
$entry =~ s/\s+$//;
$tmphash{$pkg} = $entry;
}
}
return \%tmphash;
}
sub dico_get_all_choices (){
# Get $choices and $echoices parallel lists sorted after $echoices and formatted for debconf
my $class = shift;
my $languages = shift;
my $debug = 1 if exists $ENV{'DICT_COMMON_DEBUG'};
my %mappinghash = ();
my $debug_prefix = "[$class,dico_get_all_choices]";
$languages = &dico_parse_languages($class,"languages") unless $languages;
my $elanguages = &dico_parse_languages($class,"elanguages",[ keys %$languages ]);
if ( $debug ){
print STDERR "-------- $debug_prefix start --------\n";
my $langlist = join(', ',sort keys %{$languages});
my $elanglist = join(', ',sort keys %{$elanguages});
print STDERR " * Packages with languages: $langlist\n" if $debug;
print STDERR " * Packages with elanguages: $elanglist\n" if $debug;
}
foreach $pkg ( keys %$languages ){
my @langs = split(/\s*,\s*/, $languages->{$pkg});
my @elangs = @langs;
if ( exists $elanguages->{$pkg} ){
my @tmp = split(/\s*,\s*/, $elanguages->{$pkg});
if ( $debug ){
print STDERR " langs: $#langs, " . join(', ',@langs) . "\n";
print STDERR " tmp: $#tmp, " . join(', ',@tmp) . "\n";
}
@elangs = @tmp if ( $#langs == $#tmp );
}
foreach $index ( 0 .. $#langs ){
$mappinghash{$langs[$index]} = $elangs[$index];
}
}
my $echoices = join(', ', sort {lc($a) cmp lc($b)} values %mappinghash);
my $choices = join(', ',
sort {lc($mappinghash{$a}) cmp lc($mappinghash{$b})}
keys %mappinghash);
if ( $debug ){
print STDERR "- Choices:\n[$choices]\n";
print STDERR "- Echoices:\n[$echoices]\n";
print STDERR "-------- $debug_prefix end --------\n";
}
return $choices, $echoices;
}
sub dc_debconf_select (){
my $class = shift;
my $priority = shift;
my $question = "dictionaries-common/default-$class";
my $packages = &dico_get_packages($class);
my $debug = 1 if exists $ENV{'DICT_COMMON_DEBUG'};
my $reconfigure = 1 if exists $ENV{'DEBCONF_RECONFIGURE'};
my $flagdir = "/var/cache/dictionaries-common";
my $newflag = "$flagdir/flag-$class-new";
my $langscript = "/usr/share/dictionaries-common/dc-debconf-default-value.pl";
my $echoices;
my @oldchoices = ();
my %newchoices = ();
my %title = ('ispell' => "Dictionaries-common: Ispell dictionary",
'wordlist' => "Dictionaries-common: Wordlist dictionary"
);
my $debug_prefix = "[$class,dc_debconf_select]";
return unless $packages;
print STDERR "----- $debug_prefix start -----------\n" if $debug;
# Get new base list of provided languages
my $languages = &dico_parse_languages($class,"languages",$packages);
foreach $pkg ( keys %$languages ) {
foreach $lang ( split(/\s*,\s*/, $languages->{$pkg}) ){
$newchoices{$lang}++;
}
}
my $choices = join (', ', sort {lc($a) cmp lc($b)} keys %newchoices);
# Get old list of provided languages
@oldchoices = split(/\s*,\s*/,metaget ($question, "choices-c"));
pop @oldchoices; # Remove the manual entry
my $oldchoices = join (', ', sort {lc($a) cmp lc($b)} @oldchoices);
# If dictionaries-common is already installed (-r $langscript),
# there are elements for this chass to be installed (%newchoices)
# and there were none before (! $oldchoices), means that we are installing
# for the first time elements in this class, with dictionaries-common
# already installed. Try getting a reasonable default value
if ( -r $langscript && %newchoices && ! $oldchoices ){
print STDERR "$debug_prefix: Configuring $class class for the first time\n\n" if $debug;
require $langscript;
&dc_set_default_value_for_class($class);
}
# Read current value of default ispell dict / wordlist.
my $curval = get ($question) || "undefined";
if ( scalar %newchoices ) {
# If $priority is set &dc_set_default_value_for_class found something.
# This will usually be as much "medium", so honour it.
unless ( $priority ){
if ( $curval =~ /^Manual.*/ or exists $newchoices{$curval} ){
# Use priority "medium" if current value is in the new list or mode is set to manual.
$priority = "medium"; #
} else {
# Otherwise we have a wrong value with no associated entry.
# This is an *error* that needs to be signalled and acted upon.
# For this reason priority must be higher than the standard one.
# We leave it as "high" instead of "critical" so question can be
# overriden in special cases until underlying bug is fixed.
print STDERR "$debug_prefix error: [$curval] does not correspond to any package\n";
$priority = "high";
}
}
} else {
$priority = "low";
print STDERR "$debug_prefix info: No elements in given class.\n" if $debug;
}
print STDERR
"$debug_prefix:\n" .
" Class: $class, Priority: $priority\n" .
" Question: $question, Previous or guessed value: $curval\n" .
" New choices:[$choices]\n" .
" Old choices:[$oldchoices]\n" if $debug;
# May ask question if there is no match
if ( scalar %newchoices ) {
if ( $choices ne $oldchoices) {
fset ($question, "seen", "false");
# Let future processes in this apt run know that a new $class element is to be installed
if ( -d $flagdir ) {
open ($FLAG,"> $newflag")
or die "Could not open $newflag for write. Aborting ...\n";
print $FLAG "1\n";
close $FLAG;
}
}
my ( $errorcode, $seen ) = fget($question, "seen");
if ( $seen eq "false" or $reconfigure ){
($choices, $echoices ) = &dico_get_all_choices($class,$languages);
subst ($question, "choices", $choices);
subst ($question, "echoices", $echoices);
}
input ($priority, $question);
title ($title{$class});
go ();
subst ($question, "echoices", $choices); # Be backwards consistent
}
# If called from dictionaries-common.config, check actual values in debug mode
if ( $debug && $fromdcconfig ){
print STDERR "dictionaries-common.config: Checking really set values for $question\n";
print STDERR " Choices-C string: " . metaget ($question, "choices-c") . "\n";
print STDERR " Really set value: " . get ($question) . "\n";
}
print STDERR "----- $debug_prefix end -----------\n" if $debug;
}
# Local Variables:
# perl-indent-level: 2
# End:
1;
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