[SCM] Debian package checker branch, lab-refactor, updated. 2.5.3-47-g3175484
The following commit has been merged in the lab-refactor branch:
commit 3175484735557f7902c9b03bc15d4119555e0eab
Author: Niels Thykier <niels@thykier.net>
Date: Sun Sep 18 23:39:10 2011 +0200
lib/Lintian/Lab.pm: Created a new (incomplete) lab interface
Signed-off-by: Niels Thykier <niels@thykier.net>
diff --git a/lib/Lintian/Lab.pm b/lib/Lintian/Lab.pm
new file mode 100644
index 0000000..fd2b8b3
--- /dev/null
+++ b/lib/Lintian/Lab.pm
@@ -0,0 +1,224 @@
+# Lintian::Lab -- Perl laboratory functions for lintian
+
+# Copyright (C) 2011 Niels Thykier
+# - Based on the work of "Various authors" (Copyright 1998-2004)
+#
+# 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.
+
+package Lintian::Lab;
+
+use strict;
+use warnings;
+
+use base qw(Class::Accessor Exporter);
+
+use Carp qw(croak);
+use Cwd();
+
+# Lab format Version Number increased whenever incompatible changes
+# are done to the lab so that all packages are re-unpacked
+use constant LAB_FORMAT => 10.1;
+
+
+# Export now due to cicular depends between Lab and Lab::Package.
+our (@EXPORT, @EXPORT_OK, %EXPORT_TAGS);
+
+BEGIN {
+ @EXPORT = ();
+ %EXPORT_TAGS = (
+ constants => [qw(LAB_FORMAT)],
+ );
+ @EXPORT_OK = (
+ @{$EXPORT_TAGS{constants}}
+ );
+};
+
+=head1 NAME
+
+Lintian::Lab -- Interface to the Lintian Lab
+
+=head2 Methods
+
+=over 4
+
+=item Lintian::Lab->new([$dir])
+
+Creates a new Lab instance. If C<$dir> is passed it will be used as
+the path to the lab and the lab will be in static mode. Otherwise the
+lab will be in temporary mode and will point to a temporary directory.
+
+=cut
+
+
+sub new {
+ my ($class, $dir) = @_;
+ my $absdir;
+ my $mode = 'temporary';
+ if ($dir) {
+ $absdir = Cwd::abs_path($dir);
+ croak "Cannot resolve $dir: $!" unless $absdir;
+ $mode = 'static';
+ }
+ my $self = {
+ 'dir' => $absdir,
+ 'state' => {},
+ 'mode' => $mode,
+ };
+ bless $self, $class;
+ $self->_init ($dir);
+ return $self;
+}
+
+=item $lab->dir
+
+Returns the absolute path to the base of the lab.
+
+=cut
+
+Lintian::Lab->mk_ro_accessors (qw(dir));
+
+=item $lab->auto_remove ([$val])
+
+Whether or not to auto-remove the lab. By default, temporary labs will
+be auto-removed and static labs will not. The removal will happen when
+C<$lab> goes out of scope.
+
+=cut
+
+Lintian::Lab->mk_accessors (qw(auto_remove));
+
+=item $lab->is_valid_lab
+
+Returns a truth value if B<$lab> points to a valid and existing
+lab.
+
+=cut
+
+sub is_valid_lab {
+ my ( $self ) = @_;
+ my $dir = $self->{dir};
+ return unless $dir;
+ # New style lab?
+ return 1 if -d "$dir/info" && -d "$dir/pool";
+ # 10-style lab?
+ return -d "$dir/binary"
+ && -d "$dir/udeb"
+ && -d "$dir/source"
+ && -d "$dir/info";
+}
+
+sub get_package {
+ croak "Not implemented";
+}
+
+sub _pool_path {
+ my ($self, $pkg_name, $pkg_type, $pkg_version, $pkg_arch) = @_;
+ my $path = $self->dir;
+ my $p;
+ if ($pkg_name =~ m/^lib/o) {
+ $p = substr $pkg_name, 0, 4;
+ } else {
+ $p = substr $pkg_name, 0, 1;
+ }
+ $path .= "/$p/$pkg_name/${pkg_name}_${pkg_version}";
+ $path .= "_${pkg_arch}" unless $pkg_type eq 'source';
+ $path .= "_${pkg_type}";
+ return $path;
+}
+
+=item $lab->remove_lab
+
+Removes the lab and everything in it. Any reference to an entry
+returned from this lab will immediately become invalid.
+
+If this is a temporary lab, the lab root dir (as returned $lab->dir)
+will be removed as well on success. Otherwise the lab root dir will
+not be removed by this call.
+
+On success, this will return a truth value and the directory path will
+be set to the empty string (that is, $lab->dir will return ''). It
+will not be possible to use B<$lab> to create a new lab.
+
+On error, this method will croak.
+
+If the lab has already been removed, this will return a truth value.
+
+=cut
+
+sub remove_lab {
+ my ($self) = @_;
+ my $dir = $self->dir;
+ my @subdirs = ();
+ my $empty = 0;
+
+ return 1 unless $dir && -d $dir;
+
+ # sanity check if $self->{dir} really points to a lab :)
+ unless (-d "$dir/info") {
+ # info/ subdirectory does not exist--empty directory?
+ my @t = glob("$dir/*");
+ if ($#t+1 <= 2) {
+ # yes, empty directory--skip it
+ $empty = 1;
+ } else {
+ # non-empty directory that does not look like a lintian lab!
+ croak "$dir: Does not look like a lab";
+ }
+ }
+
+ unless ($empty) {
+ # looks ok.
+ if ( -d "$dir/pool") {
+ # New lab style
+ @subdirs = qw/pool info/;
+ } else {
+ # 10-style Lab
+ @subdirs = qw/binary source udeb info/;
+ push @subdirs, 'changes' if -d "$dir/changes";
+ }
+ unless (delete_dir( map { "$dir/$_" } @subdirs )) {
+ croak "delete_dir (\$contents): $!";
+ }
+ }
+
+ # dynamic lab?
+ if ($self->{mode} eq 'temporary') {
+ croak "rmdir $dir: $!";
+ }
+
+ $self->{dir} = '';
+ return 1;
+}
+
+# initialize the instance
+#
+# May be overriden by a sub-class
+sub _init {
+ my ($self, $dir) = @_;
+
+}
+
+=back
+
+=head1 AUTHOR
+
+Niels Thykier <niels@thykier.net>
+
+Based on the work of various others.
+
+=cut
+
--
Debian package checker
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