/usr/share/polymake/perllib/Polymake/Tempfile.pm is in polymake-common 3.2r2-3.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 | # Copyright (c) 1997-2018
# Ewgenij Gawrilow, Michael Joswig (Technische Universitaet Berlin, Germany)
# http://www.polymake.org
#
# 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, or (at your option) any
# later version: http://www.gnu.org/licenses/gpl.txt.
#
# 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.
#-------------------------------------------------------------------------------
use strict;
use namespaces;
use warnings qw(FATAL void syntax misc);
use feature 'state';
require 'Polymake/file_utils.pl';
require Cwd;
package Polymake::Tempfile;
sub root_dir {
state $dir=find_writable_dir($PrivateDir);
}
sub new {
root_dir();
bless \(my $name), shift;
}
my $cnt="aaaa0000";
my $rename_cnt=0;
sub unique_name { "poly".$$."T".(++$cnt) }
use overload '""' => sub { ${$_[0]} ||= root_dir()."/".unique_name(); };
sub basename { $ {$_[0]} =~ m|/(poly[^/]+)$|; $1 }
sub dirname { $ {$_[0]} =~ m|(.*)/poly[^/]+$|; $1 }
sub rename { my $name="$_[0]"; ++$rename_cnt; $name=~s/T(?=\w+$)/N${rename_cnt}_/; $name }
# filename => boolean
sub is_a { index($_[1], root_dir())==0 }
sub DESTROY {
my $stem=${$_[0]};
if (defined($stem) and my @files=glob("$stem*")) {
if ($DebugLevel && $@) {
warn_print( "Preserving temporary files: @files\n" );
} else {
unlink @files;
}
}
}
package Polymake::Tempdir;
use POSIX ':errno_h';
my @to_delete;
sub new {
my ($pkg, $till_exit)=@_;
if ($till_exit && $till_exit ne "till_exit") {
croak( "unknown Tempdir option $till_exit" );
}
my $path;
for (;;) {
$path=Tempfile::root_dir()."/".Tempfile::unique_name();
mkdir($path, 0700) and last;
$!==EEXIST or die "could not create temporary directory $path: $!\n";
}
my $self=bless \$path, $pkg;
if ($till_exit) {
@to_delete or add AtEnd("tempdir", sub { undef @to_delete });
push @to_delete, $self;
}
$self
}
use overload '""' => sub { ${$_[0]} };
sub DESTROY {
my $path=${$_[0]};
if ($DebugLevel && $@) {
warn_print( "Preserving temporary directory: $path" );
} else {
File::Path::remove_tree($path);
}
}
package Polymake::TempChangeDir;
sub new {
my ($pkg, $to_dir)=@_;
my $cwd=Cwd::getcwd;
chdir $to_dir or die "can't change into $to_dir: $!\n";
bless \$cwd, $pkg;
}
sub DESTROY {
chdir ${$_[0]} or warn "can't change back into ${$_[0]}: $!\n";
}
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