diff options
-rw-r--r-- | usr.sbin/pkg/Makefile | 10 | ||||
-rw-r--r-- | usr.sbin/pkg/pkg.pl | 388 |
2 files changed, 398 insertions, 0 deletions
diff --git a/usr.sbin/pkg/Makefile b/usr.sbin/pkg/Makefile new file mode 100644 index 00000000000..3c0725775c2 --- /dev/null +++ b/usr.sbin/pkg/Makefile @@ -0,0 +1,10 @@ +# $OpenBSD: Makefile,v 1.1 2001/04/02 10:11:16 espie Exp $ + +NOMAN= +NOPROG= + +afterinstall: + ${INSTALL} ${INSTALL_COPY} -o ${BINOWN} -g ${BINGRP} -m ${BINMODE} \ + ${.CURDIR}/pkg.pl ${DESTDIR}${BINDIR}/pkg + +.include <bsd.prog.mk> diff --git a/usr.sbin/pkg/pkg.pl b/usr.sbin/pkg/pkg.pl new file mode 100644 index 00000000000..0f975aa84e5 --- /dev/null +++ b/usr.sbin/pkg/pkg.pl @@ -0,0 +1,388 @@ +#!/usr/bin/perl +# ex:ts=8 sw=4: +# $OpenBSD: pkg.pl,v 1.1 2001/04/02 10:11:16 espie Exp $ +# +# Copyright (c) 2001 Marc Espie. +# +# Redistribution and use in source and binary forms, with or without +# modification, are permitted provided that the following conditions +# are met: +# 1. Redistributions of source code must retain the above copyright +# notice, this list of conditions and the following disclaimer. +# 2. Redistributions in binary form must reproduce the above copyright +# notice, this list of conditions and the following disclaimer in the +# documentation and/or other materials provided with the distribution. +# +# THIS SOFTWARE IS PROVIDED BY THE OPENBSD PROJECT AND CONTRIBUTORS +# ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT +# LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR +# A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE OPENBSD +# PROJECT OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, +# SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT +# LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, +# DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY +# THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT +# (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE +# OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. + +require 5.6.0; + +use strict; +use Getopt::Std; + +# This is a first implementation of the pkg_* perl replacement. +# We are doing this piecewise, handling larger and larger parts of +# package handling in perl, until the corresponding C code just vanishes. + +# This code is going to change a lot in the near future. + +# Currently, it's a bare-bones implementation of the new dependency +# handler. Note that even the syntax may change. + +my $vardb = $ENV{'PKG_DBDIR'} || '/var/db/pkg'; +my $verbose; + +sub compare_pseudo_numbers +{ + my ($n, $m) = @_; + + my ($n1, $m1); + + if ($n =~ m/^\d+/) { + $n1 = $&; + $n = $'; + } + if ($m =~ m/^\d+/) { + $m1 = $&; + $m = $'; + } + + if ($n1 == $m1) { + return $n cmp $m; + } else { + return $n1 <=> $m1; + } +} + + +sub dewey_compare +{ + my ($a, $b) = @_; + my ($pa, $pb); + + unless ($b =~ m/p\d+$/) { # does the Dewey hold a p<number> ? + $a =~ s/p\d+$//; # No -> strip it from version. + } + + return 0 if $a =~ /^$b$/; # bare equality + + if ($a =~ s/p(\d+)$//) { # extract patchlevels + $pa = $1; + } + if ($b =~ s/p(\d+)$//) { + $pb = $1; + } + + my @a = split(/\./, $a); + push @a, $pa if defined $pa; # ... and restore them + my @b = split(/\\\./, $b); + push @b, $pb if defined $pb; + while (@a > 0 && @b > 0) { + my $va = shift @a; + my $vb = shift @b; + next if $va eq $vb; + return compare_pseudo_numbers($va, $vb); + } + if (@a > 0) { + return 1; + } else { + return -1; + } +} + +sub check_version +{ + my ($v, $spec) = @_; + local $_; + + # any version spec + return 1 if $spec eq '.*'; + + my @specs = split(/,/, $spec); + for (grep /^\d/, @specs) { # exact number: check match + return 1 if $v =~ /^$_$/; + return 1 if $v =~ /^${_}p\d+$/; # allows for recent patches + } + for (grep !/^\d/, @specs) { # dewey match, all of them + if (m/^\<\=|\>\=|\<|\>/) { + my ($op, $dewey) = ($&, $'); + my $compare = dewey_compare($v, $dewey); + return 0 if $op eq '<' && $compare >= 0; + return 0 if $op eq '<=' && $compare > 0; + return 0 if $op eq '>' && $compare <= 0; + return 0 if $op eq '>=' && $compare < 0; + } + } + return 1; +} + +sub check_1flavor +{ + my ($f, $spec) = @_; + local $_; + + for (split /-/, $spec) { + # must not be here + if (m/^\!/) { + return 0 if $f->{$'}; + # must be here + } else { + return 0 unless $f->{$_}; + } + } + return 1; +} + +sub check_flavor +{ + my ($f, $spec) = @_; + local $_; + # no flavor constraints + return 1 if $spec eq ''; + + # retrieve all flavors + my %f = map +($_, 1), split /\-/, $f; + + # check each flavor constraint + for (split /,/, $spec) { + if (check_1flavor(\%f, $_)) { + return 1; + } + } + return 0; +} + +sub subpattern_match +{ + my ($p, $list) = @_; + local $_; + + my ($stemspec, $vspec, $flavorspec); + + # first, handle special characters (shell -> perl) + $p =~ s/\./\\\./g; + $p =~ s/\+/\\\+/g; + $p =~ s/\*/\.\*/g; + $p =~ s/\?/\./g; + + # then, guess at where the version number is if any, + + # this finds patterns like -<=2.3,>=3.4.p1- + # the only constraint is that the actual number + # - must start with a digit, + # - not contain - or , + if ($p =~ m/\-((?:\>|\>\=|\<|\<\=)?\d[^-]*)/) { + ($stemspec, $vspec, $flavorspec) = ($`, $1, $'); + # `any version' matcher + } elsif ($p =~ m/\-(\.\*)/) { + ($stemspec, $vspec, $flavorspec) = ($`, $1, $'); + # okay, so no version marker. Assume no flavor spec. + } else { + ($stemspec, $vspec, $flavorspec) = ($p, '', ''); + } + + print "$stemspec, $vspec, $flavorspec\n" if $verbose; + $p = "$stemspec-\.\*" if $vspec ne ''; + + # First trim down the list + my @l = grep {/^$p$/} @$list; + + my @result = (); + # Now, have to extract the version number, and the flavor... + for (@l) { + my ($stem, $v, $flavor); + if (m/\-(\d[^-]*)/) { + ($stem, $v, $flavor) = ($`, $1, $'); + if ($stem =~ m/^$stemspec$/ && + check_version($v, $vspec) && + check_flavor($flavor, $flavorspec)) { + push(@result, $_); + } + } + } + + print join(', ', @result), "\n"; + return @result; +} + +sub pattern_match +{ + my ($pattern, $list) = @_; + my @l; + + for my $subpattern (split /\|/, $pattern) { + @l = subpattern_match($subpattern, $list); + if (@l > 0) { + return $l[0]; + } + } + return 0; +} + +sub check_dependencies +{ + my $pattern = shift; + unless (chdir $vardb) { + die "Directory $vardb absent\n"; + } + my @list = glob '*'; + # Try subpatterns in sequence + return pattern_match($pattern, \@list) ? 1 : 0; +} + +sub solve_dependencies +{ + my $file = shift; + my $pkgname; + my %verify; + my @lines; + + open(FILE, '<', $file); + # Parse the old plist, scanning for what we want to handle only. + while (<FILE>) { + chomp; + if (m/^\@name\s+/) { + $pkgname=$'; + } + elsif (m/^\@newdepend\s+/) { + my ($name, $pattern, $def) = split(/\:/, $'); + unless (defined $verify{$name}) { + $verify{$name} = []; + } + push(@{$verify{$name}}, [$pattern, $def]); + push(@lines, "\@comment newdepend $name:$pattern:$def"); + } else { + push(@lines, $_); + } + } + close(FILE); + + open FILE, '>', "$file"; + print FILE "\@name $pkgname\n"; + my @todo = ($pkgname); + my %done = (); + + unless (chdir $vardb) { + die "Directory $vardb absent\n"; + } + my @list = glob '*'; + + # create all the new pkgdep stuff + + for my $check (@todo) { + print "Handling dependencies for $check\n" if $verbose; + for my $dep (@{$verify{$check}}) { + print " checking ", $dep->[0], " (", $dep->[1], + ") -> " if $verbose; + my $r = pattern_match($dep->[0], \@list); + if ($r) { + print "$r\n" if $verbose; + } else { + print "Not found\n" if $verbose; + } + # unshift so that base dependencies happen first. + if ($r) { + unshift @lines, "\@pkgdep $r"; + } else { + unshift @lines, "\@pkgdep ".$dep->[1]; + push @todo, $dep->[1] unless $done{$dep->[1]}; + } + } + $done{$check} = 1; + } + for my $l (@lines) { + print FILE $l, "\n"; + } + close FILE; +} + +sub resolve_version +{ + return $_ if -d $_; + my @l = glob("$_-[0-9]*"); + if (@l > 0) { + return $l[0]; + } else { + return undef; + } +} + +sub show_forward_dependencies +{ + my @l = @_; + + local $_; + + unless (chdir $vardb) { + die "Directory $vardb absent\n"; + } + + @l = map(resolve_version, @l); + + my %known = map +($_,1), @l; + + open(OUT, "|tsort -f -r|tr '\012' '\040';echo"); + for my $p (@l) { + print OUT "$p $p\n"; + if (open(DEPS, "$p/+REQUIRED_BY")) { + while (<DEPS>) { + chomp; + print OUT "$p $_\n"; + unless ($known{$_}) { + push(@l, $_); + $known{$_} = 1; + } + } + close DEPS; + } + } + close OUT; +} + +# Pass this off to the old package commands +my %legacy = map +($_, 1), qw{add info delete create}; +my %opts; + +getopts('v', \%opts); + +$verbose = 1 if defined($opts{'v'}); + +if (@ARGV == 0) { + die "needs arguments\n"; +} + +my $cmd = shift; + +if (defined $legacy{$cmd}) { + if (defined $opts{'v'}) { + unshift(@ARGV, '-v'); + } + exec { "pkg_$cmd"} ("pkg_$cmd", @ARGV); +} elsif ($cmd eq 'dependencies') { + my $sub = shift; + if ($sub eq 'check') { + if (check_dependencies(shift)) { + exit(0); + } else { + exit(1); + } + } elsif ($sub eq 'solve') { + solve_dependencies(shift); + exit(0); + } elsif ($sub eq 'show') { + show_forward_dependencies(@ARGV); + exit(0); + } + die "Bad dependency subcommand $sub\n"; +} +die "Bad command $cmd\n"; |