From ef6c8731743d0180a82448fcf9a4683a2f4deace Mon Sep 17 00:00:00 2001
From: Francois Pons <fpons@mandriva.com>
Date: Thu, 21 Feb 2002 17:25:49 +0000
Subject: 3.3-14mdk

---
 urpme | 56 ++++++++++++++++++++++++++++++++++----------------------
 1 file changed, 34 insertions(+), 22 deletions(-)

(limited to 'urpme')

diff --git a/urpme b/urpme
index 085e2075..20c58a49 100644
--- a/urpme
+++ b/urpme
@@ -20,12 +20,13 @@
 use strict;
 
 #use strict qw(subs vars refs);
+use rpmtools;
 use urpm;
 
 #- get I18N translation method.
 import urpm _;
 
-my ($auto, $matches, $maymatch, %provides, @l, @m, @toremove);
+my ($auto, $matches, $maymatch, @l, @m, @toremove);
 my $askok = _("Is it OK?");
 my $askrm = _("Remove them all?");
 # Translator: Add here the keys which might be pressed in the "No"-case.
@@ -43,8 +44,6 @@ if ( / --?h/ || @ARGV == 0 ) {
 $matches = / -a /;
 $auto = / --?auto /;
 
-my $DIR = "/var/lib/urpmi";
-
 @l = grep { !/^-/ } @ARGV;
 if (!$matches) {
     @m = map { chop; $_ } `rpm -q @l 2>&1`;
@@ -65,10 +64,7 @@ if ($matches || $maymatch) {
     }
 }
 
-load_provides();
-my %toremove;
-@toremove{$_, @{$provides{$_} || []}} = () foreach @m;
-
+my %toremove; @toremove{@m} = ();
 my $changed = 1;
 while ($changed) {
     $changed = 0;
@@ -87,6 +83,37 @@ if ( ! (@toremove = keys %toremove) ) {
     print _("Nothing to remove.\n");
     exit(0);
 }
+
+#- check if a package to be removed is a part of basesystem requires.
+my %base;
+my @base = qw(basesystem);
+my %basepackages;
+my $db = rpmtools::db_open('');
+while (defined($_ = shift @base)) {
+    exists $basepackages{$_} and next;
+    rpmtools::db_traverse_tag($db, /^\// ? 'path' : 'whatprovides', [ $_ ], [ qw(name version release requires) ], sub {
+				  my ($p) = @_;
+				  push @{$basepackages{$_} ||= []}, "$p->{name}-$p->{version}-$p->{release}";
+				  push @base, @{$p->{requires} || []};
+			      });
+}
+rpmtools::db_close($db);
+foreach (values %basepackages) {
+    my $n = @$_;
+    foreach (@$_) {
+	$base{$_} = \$n;
+    }
+}
+my $base_str = '';
+foreach (@toremove) {
+    my $rn = $base{$_};
+    if ($rn) {
+	$$rn == 1 and $base_str .= _("removing package %s will break your system\n", $_);
+	--$$rn;
+    }
+}
+$base_str and die $base_str;
+
 if (@toremove > @l && !$auto) {
     my $sum = 0;
     map { $sum += $_ } `rpm -q --queryformat "%{SIZE}\n" @toremove`;
@@ -97,21 +124,6 @@ if (@toremove > @l && !$auto) {
 system("rpm", "-e", @toremove);
 
 
-sub load_provides {
-    local *F;
-    open F, "$DIR/depslist.ordered" or return;
-    my @packages_id;
-    my %provides_id;
-    foreach (<F>) {
-	my ($p, $size, @l) = split;
-        #$size{$p} = $size;
-	push @packages_id, $p;
-	push @{$provides_id{$_}}, $p foreach @l;
-    }
-    foreach (keys %provides_id) {
-	$provides{$packages_id[$_]} = $provides_id{$_};
-    }
-}
 sub toMb {
     my $nb = $_[0] / 1024 / 1024;
     int $nb + 0.5;
-- 
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