openbsd-ports/infrastructure/package/check-common-dirs

#!/usr/bin/perl

# $OpenBSD: check-common-dirs,v 1.1 2004/08/12 18:58:34 espie Exp $
# Copyright (c) 2004 Marc Espie <espie@openbsd.org>
#
# Permission to use, copy, modify, and distribute this software for any
# purpose with or without fee is hereby granted, provided that the above
# copyright notice and this permission notice appear in all copies.
#
# THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
# WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
# MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
# ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
# WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
# ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
# OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.

# check all packages in the current directory, and report common directory
# issues

use strict;
use warnings;

use File::Spec;
use File::Path;
use File::Basename;
use OpenBSD::PackageLocator;
use OpenBSD::PackageInfo;
use OpenBSD::PackingList;

sub register_dir
{
	my ($d, $h) = @_;
	return if defined $h->{$d};
	$h->{$d} = 1;
	register_dir(dirname($d), $h);
}

package OpenBSD::PackingElement;
sub handle
{
}

package OpenBSD::PackingElement::FileBase;
use File::Basename;
sub handle
{
	my ($item, $t) = @_;
	my $d = File::Spec->canonpath($item->fullname());
	main::register_dir(dirname($d), $t->{need_dirs});
}

package OpenBSD::PackingElement::DirBase;
sub handle
{
	my ($item, $t) = @_;
	my $d = File::Spec->canonpath($item->fullname());
	$t->{dirs}->{$d} = 1;
}

package OpenBSD::PackingElement::DirRm;
sub handle
{
	&OpenBSD::PackingElement::DirBase::handle;
}

package OpenBSD::PackingElement::PkgDep;
sub handle
{
	my ($item, $t) = @_;
	$t->{deps}->{$item->{name}} = 1;
}

package OpenBSD::PackingElement::LibDepend;
sub handle
{
	my ($item, $t) = @_;
	$t->{deps}->{$item->{def}} = 1;
}

package OpenBSD::PackingElement::NewDepend;
sub handle
{
	&OpenBSD::PackingElement::LibDepend::handle;
}

package main;

sub analyze 
{
	my ($plist, $db) = @_;
	my $pkgname = $plist->pkgname();
	$db->{$pkgname} = {
		pkgname => $pkgname,
		missing_deps => {},
		dirs => {}, 
		need_dirs => {}, 
		deps => {} 
	} unless defined $db->{$pkgname};
	my $t = $db->{$pkgname};

	for my $listname (qw(pkgdep newdepend libdepend)) {
		if (defined $plist->{$listname}) {
			for my $item (@{$plist->{$listname}}) {
				$item->handle($t);
			}
		}
	}
	for my $item (@{$plist->{items}}) {
		$item->handle($t);
	}
}

sub parent_has_dir
{
	my ($db, $t, $dir) = @_;

	for my $dep (keys %{$t->{deps}}) {
		if (!defined $db->{$dep}) {
		    if (!defined $t->{missing_deps}->{$dep}) {
			    print $t->{pkgname}, ": $dep not found\n";
			    $t->{missing_deps}->{$dep} = 1;
		    }
		    next;
		}
		if ($db->{$dep}->{dirs}->{$dir} || 
		    parent_has_dir($db, $db->{$dep}, $dir)) {
			$t->{dirs}->{$dir} = 1;
			return 1;
		}
	}
	return 0;
}

sub show_results
{
	my ($db, $mtree) = @_;

	for my $pkgname (sort keys %$db) {
		my $t = $db->{$pkgname};
		my @l=();
		for my $dir (keys(%{$t->{need_dirs}})) {
			next if $t->{dirs}->{$dir};
			next if $mtree->{$dir};
			next if parent_has_dir($db, $t, $dir);
			push(@l, $dir);
		}
		print "$pkgname: ", join(', ', sort @l), "\n";
	}
}

# read an mtree file, and produce the corresponding directory hierarchy
sub parse_mtree 
{
	my ($mtree, $current, $filename) = @_;
	open my $file, '<', $filename;
	while(<$file>) {
		chomp;
		s/^\s*//;
		next if /^\#/ || /^\//;
		s/\s.*$//;
		next if /^$/;
		if ($_ eq '..') {
			$current =~ s|/[^/]*$||;
			next;
		} else {
			$current.="/$_";
		}
		$_ = $current;
		while (s|/\./|/|)	{}
		$mtree->{File::Spec->canonpath($_)} = 1;
	}
	close $file;
}

print "Scanning packages\n";
print "-----------------\n";
if (@ARGV==0) {
	@ARGV=(<*.tgz>);
}
my $db = {};
my $mtree = {};

parse_mtree($mtree, '/usr/local', '/etc/mtree/BSD.local.dist');
parse_mtree($mtree, '/', '/etc/mtree/4.4BSD.dist');
parse_mtree($mtree, '/usr/X11R6', '/etc/mtree/BSD.x11.dist');
$mtree->{'/usr/local/lib/X11'} = 1;
$mtree->{'/usr/local/lib/X11/app-defaults'} = 1;

for my $pkgname (@ARGV) {
	print STDERR "$pkgname\n";
	my $true_package = OpenBSD::PackageLocator->find($pkgname);
	next unless $true_package;
	my $dir = $true_package->info();
	$true_package->close();
	my $plist = OpenBSD::PackingList->fromfile($dir.CONTENTS);
	rmtree($dir);
	analyze($plist, $db);
}

show_results($db, $mtree);