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Filename :
InfoObj.pm
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# -*- Mode: cperl; coding: utf-8; cperl-indent-level: 4 -*- # vim: ts=4 sts=4 sw=4: package CPAN::InfoObj; use strict; use CPAN::Debug; @CPAN::InfoObj::ISA = qw(CPAN::Debug); use Cwd qw(chdir); use vars qw( $VERSION ); $VERSION = "5.5"; sub ro { my $self = shift; exists $self->{RO} and return $self->{RO}; } #-> sub CPAN::InfoObj::cpan_userid sub cpan_userid { my $self = shift; my $ro = $self->ro; if ($ro) { return $ro->{CPAN_USERID} || "N/A"; } else { $self->debug("ID[$self->{ID}]"); # N/A for bundles found locally return "N/A"; } } sub id { shift->{ID}; } #-> sub CPAN::InfoObj::new ; sub new { my $this = bless {}, shift; %$this = @_; $this } # The set method may only be used by code that reads index data or # otherwise "objective" data from the outside world. All session # related material may do anything else with instance variables but # must not touch the hash under the RO attribute. The reason is that # the RO hash gets written to Metadata file and is thus persistent. #-> sub CPAN::InfoObj::safe_chdir ; sub safe_chdir { my($self,$todir) = @_; # we die if we cannot chdir and we are debuggable Carp::confess("safe_chdir called without todir argument") unless defined $todir and length $todir; if (chdir $todir) { $self->debug(sprintf "changed directory to %s", CPAN::anycwd()) if $CPAN::DEBUG; } else { if (-e $todir) { unless (-x $todir) { unless (chmod 0755, $todir) { my $cwd = CPAN::anycwd(); $CPAN::Frontend->mywarn("I have neither the -x permission nor the ". "permission to change the permission; cannot ". "chdir to '$todir'\n"); $CPAN::Frontend->mysleep(5); $CPAN::Frontend->mydie(qq{Could not chdir from cwd[$cwd] }. qq{to todir[$todir]: $!}); } } } else { $CPAN::Frontend->mydie("Directory '$todir' has gone. Cannot continue.\n"); } if (chdir $todir) { $self->debug(sprintf "changed directory to %s", CPAN::anycwd()) if $CPAN::DEBUG; } else { my $cwd = CPAN::anycwd(); $CPAN::Frontend->mydie(qq{Could not chdir from cwd[$cwd] }. qq{to todir[$todir] (a chmod has been issued): $!}); } } } #-> sub CPAN::InfoObj::set ; sub set { my($self,%att) = @_; my $class = ref $self; # This must be ||=, not ||, because only if we write an empty # reference, only then the set method will write into the readonly # area. But for Distributions that spring into existence, maybe # because of a typo, we do not like it that they are written into # the readonly area and made permanent (at least for a while) and # that is why we do not "allow" other places to call ->set. unless ($self->id) { CPAN->debug("Bug? Empty ID, rejecting"); return; } my $ro = $self->{RO} = $CPAN::META->{readonly}{$class}{$self->id} ||= {}; while (my($k,$v) = each %att) { $ro->{$k} = $v; } } #-> sub CPAN::InfoObj::as_glimpse ; sub as_glimpse { my($self) = @_; my(@m); my $class = ref($self); $class =~ s/^CPAN:://; my $id = $self->can("pretty_id") ? $self->pretty_id : $self->{ID}; push @m, sprintf "%-15s %s\n", $class, $id; join "", @m; } #-> sub CPAN::InfoObj::as_string ; sub as_string { my($self) = @_; my(@m); my $class = ref($self); $class =~ s/^CPAN:://; push @m, $class, " id = $self->{ID}\n"; my $ro; unless ($ro = $self->ro) { if (substr($self->{ID},-1,1) eq ".") { # directory $ro = +{}; } else { $CPAN::Frontend->mywarn("Unknown object $self->{ID}\n"); $CPAN::Frontend->mysleep(5); return; } } for (sort keys %$ro) { # next if m/^(ID|RO)$/; my $extra = ""; if ($_ eq "CPAN_USERID") { $extra .= " ("; $extra .= $self->fullname; my $email; # old perls! if ($email = $CPAN::META->instance("CPAN::Author", $self->cpan_userid )->email) { $extra .= " <$email>"; } else { $extra .= " <no email>"; } $extra .= ")"; } elsif ($_ eq "FULLNAME") { # potential UTF-8 conversion push @m, sprintf " %-12s %s\n", $_, $self->fullname; next; } next unless defined $ro->{$_}; push @m, sprintf " %-12s %s%s\n", $_, $ro->{$_}, $extra; } KEY: for (sort keys %$self) { next if m/^(ID|RO)$/; unless (defined $self->{$_}) { delete $self->{$_}; next KEY; } if (ref($self->{$_}) eq "ARRAY") { push @m, sprintf " %-12s %s\n", $_, "@{$self->{$_}}"; } elsif (ref($self->{$_}) eq "HASH") { my $value; if (/^CONTAINSMODS$/) { $value = join(" ",sort keys %{$self->{$_}}); } elsif (/^prereq_pm$/) { my @value; my $v = $self->{$_}; for my $x (sort keys %$v) { my @svalue; for my $y (sort keys %{$v->{$x}}) { push @svalue, "$y=>$v->{$x}{$y}"; } push @value, "$x\:" . join ",", @svalue if @svalue; } $value = join ";", @value; } else { $value = $self->{$_}; } push @m, sprintf( " %-12s %s\n", $_, $value, ); } else { push @m, sprintf " %-12s %s\n", $_, $self->{$_}; } } join "", @m, "\n"; } #-> sub CPAN::InfoObj::fullname ; sub fullname { my($self) = @_; $CPAN::META->instance("CPAN::Author",$self->cpan_userid)->fullname; } #-> sub CPAN::InfoObj::dump ; sub dump { my($self, $what) = @_; unless ($CPAN::META->has_inst("Data::Dumper")) { $CPAN::Frontend->mydie("dump command requires Data::Dumper installed"); } local $Data::Dumper::Sortkeys; $Data::Dumper::Sortkeys = 1; my $out = Data::Dumper::Dumper($what ? eval $what : $self); if (length $out > 100000) { my $fh_pager = FileHandle->new; local($SIG{PIPE}) = "IGNORE"; my $pager = $CPAN::Config->{'pager'} || "cat"; $fh_pager->open("|$pager") or die "Could not open pager $pager\: $!"; $fh_pager->print($out); close $fh_pager; } else { $CPAN::Frontend->myprint($out); } } 1;