Implement source postfixes

[deb/packages.git] / bin / parse-sources

diff --git a/bin/parse-sources b/bin/parse-sources
index 4976260b08523357fcc4944589feb7c14d1a78cc..91e8ad54d202d7d422e8dc8a10a02c451b256548 100755 (executable)
--- a/bin/parse-sources
+++ b/bin/parse-sources
@@ -22,9 +22,13 @@
 use strict;
 
 my $what = $ARGV[0] ? "non-free" : "*";
+# max. distinct results for a given package postfix
+my $MAX_SOURCE_POSTFIXES = 100;
 
 use DB_File;
 my %sources_small = ();
+my %source_names = ();
+my %source_postfixes = ();
 
 my @suites = ('oldstable', 'stable', 'testing', 'unstable', 'experimental');
 
@@ -53,6 +57,9 @@ for my $suite (@suites) {
                }
                $sources_all_db{"$data{'package'} $data{'version'}"}
                        = $data;
+
+               $source_names{$data{'package'}} = 1;
+
                my $section = 'main';
                my $subsection = $data{section};
                if ($data{section} && ($data{section} =~ m=/=o)) {
@@ -77,7 +84,32 @@ while (my ($k, $v) = each(%sources_small)) {
 }
 untie %sources_small_db;
 
+# package names stuff:
+for my $pkg (keys %source_names) {
+       for (my $i=0;$i<length($pkg)-1;$i++) {
+               my $before = substr($pkg, 0, $i);
+               my $after = substr($pkg, $i);
+               $source_postfixes{$after} .= "$before\0";
+       }
+}
+my %source_postfixes_db;
+tie %source_postfixes_db, "DB_File", "source_postfixes.db.new",
+       O_RDWR|O_CREAT, 0666, $DB_BTREE
+       or die "Error creating DB: $!";
+while (my ($k, $v) = each(%source_postfixes)) {
+       $v =~ s/.$//s;
+       my $nr = $v;
+       $nr =~ s/[^\000]//g;
+       $nr = length($nr) + 1; # < number of hits
+       if ($nr > $MAX_SOURCE_POSTFIXES) {
+               $v = "\001" . $nr;
+       }
+       $source_postfixes_db{$k} = $v;
+}
+untie %source_postfixes_db;
+
 for my $suite (@suites) {
        rename("sources_all_$suite.db.new", "sources_all_$suite.db");
 }
 rename("sources_small.db.new", "sources_small.db");
+rename("source_postfixes.db.new", "source_postfixes.db");