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files >> //proc/thread-self/root/usr/local/share/perl5/CPAN/CacheMgr.pm
# -*- Mode: cperl; coding: utf-8; cperl-indent-level: 4 -*- # vim: ts=4 sts=4 sw=4: package CPAN::CacheMgr; use strict; use CPAN::InfoObj; @CPAN::CacheMgr::ISA = qw(CPAN::InfoObj CPAN); use Cwd qw(chdir); use File::Find; use vars qw( $VERSION ); $VERSION = "5.5002"; package CPAN::CacheMgr; use strict; #-> sub CPAN::CacheMgr::as_string ; sub as_string { eval { require Data::Dumper }; if ($@) { return shift->SUPER::as_string; } else { return Data::Dumper::Dumper(shift); } } #-> sub CPAN::CacheMgr::cachesize ; sub cachesize { shift->{DU}; } #-> sub CPAN::CacheMgr::tidyup ; sub tidyup { my($self) = @_; return unless $CPAN::META->{LOCK}; return unless -d $self->{ID}; my @toremove = grep { $self->{SIZE}{$_}==0 } @{$self->{FIFO}}; for my $current (0..$#toremove) { my $toremove = $toremove[$current]; $CPAN::Frontend->myprint(sprintf( "DEL(%d/%d): %s \n", $current+1, scalar @toremove, $toremove, ) ); return if $CPAN::Signal; $self->_clean_cache($toremove); return if $CPAN::Signal; } $self->{FIFO} = []; } #-> sub CPAN::CacheMgr::dir ; sub dir { shift->{ID}; } #-> sub CPAN::CacheMgr::entries ; sub entries { my($self,$dir) = @_; return unless defined $dir; $self->debug("reading dir[$dir]") if $CPAN::DEBUG; $dir ||= $self->{ID}; my($cwd) = CPAN::anycwd(); chdir $dir or Carp::croak("Can't chdir to $dir: $!"); my $dh = DirHandle->new(File::Spec->curdir) or Carp::croak("Couldn't opendir $dir: $!"); my(@entries); for ($dh->read) { next if $_ eq "." || $_ eq ".."; if (-f $_) { push @entries, File::Spec->catfile($dir,$_); } elsif (-d _) { push @entries, File::Spec->catdir($dir,$_); } else { $CPAN::Frontend->mywarn("Warning: weird direntry in $dir: $_\n"); } } chdir $cwd or Carp::croak("Can't chdir to $cwd: $!"); sort { -M $a <=> -M $b} @entries; } #-> sub CPAN::CacheMgr::disk_usage ; sub disk_usage { my($self,$dir,$fast) = @_; return if exists $self->{SIZE}{$dir}; return if $CPAN::Signal; my($Du) = 0; if (-e $dir) { if (-d $dir) { unless (-x $dir) { unless (chmod 0755, $dir) { $CPAN::Frontend->mywarn("I have neither the -x permission nor the ". "permission to change the permission; cannot ". "estimate disk usage of '$dir'\n"); $CPAN::Frontend->mysleep(5); return; } } } elsif (-f $dir) { # nothing to say, no matter what the permissions } } else { $CPAN::Frontend->mywarn("File or directory '$dir' has gone, ignoring\n"); return; } if ($fast) { $Du = 0; # placeholder } else { find( sub { $File::Find::prune++ if $CPAN::Signal; return if -l $_; if ($^O eq 'MacOS') { require Mac::Files; my $cat = Mac::Files::FSpGetCatInfo($_); $Du += $cat->ioFlLgLen() + $cat->ioFlRLgLen() if $cat; } else { if (-d _) { unless (-x _) { unless (chmod 0755, $_) { $CPAN::Frontend->mywarn("I have neither the -x permission nor ". "the permission to change the permission; ". "can only partially estimate disk usage ". "of '$_'\n"); $CPAN::Frontend->mysleep(5); return; } } } else { $Du += (-s _); } } }, $dir ); } return if $CPAN::Signal; $self->{SIZE}{$dir} = $Du/1024/1024; unshift @{$self->{FIFO}}, $dir; $self->debug("measured $dir is $Du") if $CPAN::DEBUG; $self->{DU} += $Du/1024/1024; $self->{DU}; } #-> sub CPAN::CacheMgr::_clean_cache ; sub _clean_cache { my($self,$dir) = @_; return unless -e $dir; unless (File::Spec->canonpath(File::Basename::dirname($dir)) eq File::Spec->canonpath($CPAN::Config->{build_dir})) { $CPAN::Frontend->mywarn("Directory '$dir' not below $CPAN::Config->{build_dir}, ". "will not remove\n"); $CPAN::Frontend->mysleep(5); return; } $self->debug("have to rmtree $dir, will free $self->{SIZE}{$dir}") if $CPAN::DEBUG; File::Path::rmtree($dir); my $id_deleted = 0; if ($dir !~ /\.yml$/ && -f "$dir.yml") { my $yaml_module = CPAN::_yaml_module(); if ($CPAN::META->has_inst($yaml_module)) { my($peek_yaml) = eval { CPAN->_yaml_loadfile("$dir.yml"); }; if ($@) { $CPAN::Frontend->mywarn("(parse error on '$dir.yml' removing anyway)"); unlink "$dir.yml" or $CPAN::Frontend->mywarn("(Could not unlink '$dir.yml': $!)"); return; } elsif (my $id = $peek_yaml->[0]{distribution}{ID}) { $CPAN::META->delete("CPAN::Distribution", $id); # XXX we should restore the state NOW, otherwise this # distro does not exist until we read an index. BUG ALERT(?) # $CPAN::Frontend->mywarn (" +++\n"); $id_deleted++; } } unlink "$dir.yml"; # may fail unless ($id_deleted) { CPAN->debug("no distro found associated with '$dir'"); } } $self->{DU} -= $self->{SIZE}{$dir}; delete $self->{SIZE}{$dir}; } #-> sub CPAN::CacheMgr::new ; sub new { my($class,$phase) = @_; $phase ||= "atstart"; my $time = time; my($debug,$t2); $debug = ""; my $self = { ID => $CPAN::Config->{build_dir}, MAX => $CPAN::Config->{'build_cache'}, SCAN => $CPAN::Config->{'scan_cache'} || 'atstart', DU => 0 }; $CPAN::Frontend->mydie("Unknown scan_cache argument: $self->{SCAN}") unless $self->{SCAN} =~ /never|atstart|atexit/; File::Path::mkpath($self->{ID}); my $dh = DirHandle->new($self->{ID}); bless $self, $class; $self->scan_cache($phase); $t2 = time; $debug .= "timing of CacheMgr->new: ".($t2 - $time); $time = $t2; CPAN->debug($debug) if $CPAN::DEBUG; $self; } #-> sub CPAN::CacheMgr::scan_cache ; sub scan_cache { my ($self, $phase) = @_; $phase = '' unless defined $phase; return unless $phase eq $self->{SCAN}; return unless $CPAN::META->{LOCK}; $CPAN::Frontend->myprint( sprintf("Scanning cache %s for sizes\n", $self->{ID})); my $e; my @entries = $self->entries($self->{ID}); my $i = 0; my $painted = 0; for $e (@entries) { my $symbol = "."; if ($self->{DU} > $self->{MAX}) { $symbol = "-"; $self->disk_usage($e,1); } else { $self->disk_usage($e); } $i++; while (($painted/76) < ($i/@entries)) { $CPAN::Frontend->myprint($symbol); $painted++; } return if $CPAN::Signal; } $CPAN::Frontend->myprint("DONE\n"); $self->tidyup; } 1;
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