--- /dev/null
+# version-substvars -- lintian check script -*- perl -*-
+#
+# Copyright (C) 2006 Adeodato Simó
+#
+# This program is free software; you can redistribute it and/or modify
+# it under the terms of the GNU General Public License as published by
+# the Free Software Foundation; either version 2 of the License, or
+# (at your option) any later version.
+#
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+# GNU General Public License for more details.
+#
+# You should have received a copy of the GNU General Public License
+# along with this program. If not, you can find it on the World Wide
+# Web at http://www.gnu.org/copyleft/gpl.html, or write to the Free
+# Software Foundation, Inc., 51 Franklin St, Fifth Floor, Boston,
+# MA 02110-1301, USA.
+
+# SUMMARY
+# =======
+#
+# What breaks
+# -----------
+#
+# (b1) any -> any (= ${source:Version}) -> use b:V
+# (b2) any -> all (= ${Source-Version}) [or b:V] -> use s:V
+# (b3) all -> any (= ${either-of-them}) -> use (>= ${s:V}),
+# optionally (<< ${s:V}.1~)
+#
+# Always warn on ${Source-Version} even if it doesn't break since the substvar
+# is now considered deprecated.
+
+package Lintian::version_substvars;
+use strict;
+
+use Util;
+use Tags;
+
+sub run {
+
+my $pkg = shift;
+my $type = shift;
+
+my @control_data = read_dpkg_control("debfiles/control");
+my @dep_fields = qw(depends pre-depends recommends suggests conflicts replaces);
+
+shift @control_data; # skip source info entry
+
+foreach (@control_data) {
+ my ($pkg1, $pkg1_is_any, $pkg2, $pkg2_is_any, $substvar_strips_binNMU);
+
+ $pkg1 = $_->{'package'};
+ $pkg1_is_any = ($_->{'architecture'} ne 'all');
+
+ foreach my $field (@dep_fields) {
+ next unless $_->{$field};
+ if ($_->{$field} =~ m/\${Source-Version}/) {
+ tag "substvar-source-version-is-deprecated", $pkg1;
+ }
+ }
+
+ foreach (split(m/,/, ($_->{'pre-depends'} || "").", ".
+ ($_->{'depends'} || ""))) {
+ next unless m/(\S+)\s*\(\s*=\s*\${((?:Source-|source:|binary:)Version)}/x;
+
+ $pkg2 = $1;
+ $substvar_strips_binNMU = ($2 eq 'source:Version');
+
+ if (not -f "control/$pkg2/architecture") {
+ tag "version-substvar-for-external-package", "$pkg1 -> $pkg2";
+ next;
+ }
+ $pkg2_is_any = (slurp_entire_file("control/$pkg2/architecture") !~ m/^all$/);
+
+ if ($pkg1_is_any) {
+ if ($pkg2_is_any and $substvar_strips_binNMU) {
+ # (b1) any -> any (= ${source:Version})
+ tag "not-binnmuable-any-depends-any", "$pkg1 -> $pkg2";
+ } elsif (not $pkg2_is_any and not $substvar_strips_binNMU) {
+ # (b2) any -> all (= ${Source-Version}) [or b:V]
+ tag "not-binnmuable-any-depends-all", "$pkg1 -> $pkg2";
+ }
+ } elsif ($pkg2_is_any) {
+ # (b3) all -> any (= ${either-of-them})
+ tag "not-binnmuable-all-depends-any", "$pkg1 -> $pkg2";
+ }
+ }
+}
+
+}
+
+1;
+
+# vim: syntax=perl sw=4 ts=4 noet shiftround