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120 lines
3.4 KiB
Perl
120 lines
3.4 KiB
Perl
#!/usr/bin/perl
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#
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# $Id: make_index,v 1.1 1998/12/12 07:41:49 asami Exp $
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#
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# Written to speed-up INDEX file generation. The new scheme
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# basically visits each port once and writes out each port's
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# build-depends and run-depends as a list of directories. This
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# script goes back in and maps the directories back to pkgnames,
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# fixes up the build-depends and run-depends list, and writes
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# out the new INDEX file.
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require 5.002;
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# Helper function to map a directory to a pkgname.
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sub by_path {
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my $name = shift;
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# If a direct mapping exists, then use it.
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return $by_path{$name} if (defined $by_path{$name});
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# Make sure we have /usr/ports at the beginning.
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$name =~ s!^$pwd!/usr/ports!o;
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return $by_path{$name} if (defined $by_path{$name});
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# Collapse all the '..' sequences.
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my @f = split('/', $name), @p = ();
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foreach (@f) { (/\.\./) ? pop(@p) : push(@p, $_); }
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return $by_path{join('/', @p)};
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}
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# This routine replaces what used to be the time-consuming
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# recursive 'depends-list' and 'package-depends' targets.
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sub recurse {
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my $pkg = shift(@_);
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return if $pkg->{checked};
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# build-depends = build-depends + recursive list of run-depends
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# for each build-depends
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my @deps = ();
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foreach $name (@{$pkg->{bdep}}) {
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recurse($index{$name});
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push(@deps, @{$index{$name}->{rdep}});
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}
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$pkg->{bdep} = uniqify(@{$pkg->{bdep}}, @deps);
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# same as above except for run-depends this time
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@deps = ();
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foreach $name (@{$pkg->{rdep}}) {
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recurse($index{$name});
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push(@deps, @{$index{$name}->{rdep}});
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}
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$pkg->{rdep} = uniqify(@{$pkg->{rdep}}, @deps);
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$pkg->{checked} = 1;
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}
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# Given one or more lists as arguments return the set
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# of unique elements among them.
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sub uniqify {
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my %seen = ();
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my @unique = grep {! $seen{$_}++} (@_);
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return \@unique;
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}
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# Save where we are so that we can map all directories formed
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# from ${PORTSDIR} to their canonical location '/usr/ports/...'.
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chomp($pwd = `pwd`);
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# Read each line of output generated by the 'index' target.
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while (<>) {
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chomp;
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my @f = split(/\|/);
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# Force to canonical form.
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$f[1] =~ s!^$pwd!/usr/ports!o;
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$f[4] =~ s!^$pwd!/usr/ports!o;
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# Save directory -> pkgname relationship.
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# Note: $f[0] gets clobbered by the splice below so we'll save
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# it to a new $name first.
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$by_path{$f[1]} = $name = $f[0];
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# Create a hash table of the infomation we need about this port.
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my $pkg = {
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'bdep' => [split(/ /, $f[7])],
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'rdep' => [split(/ /, $f[8])],
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'text' => join('|', splice(@f, 0, 7))
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};
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$index{$name} = $pkg;
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# This is a cheap way of preserving the order of the entries.
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push(@names, $name);
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}
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# For each port perform the mapping between directory and pkgnames.
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foreach $name (keys %index) {
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my $pkg = $index{$name};
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# first the build dependencies
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if (@{$pkg->{bdep}}) {
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my @bdep = map { by_path($_) } @{$pkg->{bdep}};
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$pkg->{bdep} = \@bdep;
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}
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# and now the run dependencies
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if (@{$pkg->{rdep}}) {
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my @rdep = map { by_path($_) } @{$pkg->{rdep}};
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$pkg->{rdep} = \@rdep;
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}
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}
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# With all that done we're finally ready to write out the new
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# INDEX file one port at a time.
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foreach $name (@names) {
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my $pkg = $index{$name};
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recurse($pkg);
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print "$pkg->{text}|";
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print join(' ', sort(@{$pkg->{bdep}})) if @{$pkg->{bdep}};
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print "|";
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print join(' ', sort(@{$pkg->{rdep}})) if @{$pkg->{rdep}};
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print "\n";
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}
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