/usr/share/perl5/Devel/Autoflush.pm is in libdevel-autoflush-perl 0.06-1.
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 | package Devel::Autoflush;
# ABSTRACT: Set autoflush from the command line
our $VERSION = '0.06'; # VERSION
my $kwalitee_nocritic = << 'END';
# can't use strict as older stricts load Carp and we can't allow side effects
use strict;
END
my $old = select STDOUT;
$|++;
select STDERR;
$|++;
select $old;
1;
__END__
=pod
=encoding UTF-8
=head1 NAME
Devel::Autoflush - Set autoflush from the command line
=head1 VERSION
version 0.06
=head1 SYNOPSIS
perl -MDevel::Autoflush Makefile.PL
=head1 DESCRIPTION
This module is a hack to set autoflush for STDOUT and STDERR from the command
line or from C<PERL5OPT> for code that needs it but doesn't have it.
This often happens when prompting:
# guess.pl
print "Guess a number: ";
my $n = <STDIN>;
As long as the output is going to a terminal, the prompt is flushed when STDIN
is read. However, if the output is being piped, the print statement will
not automatically be flushed, no prompt will be seen and the program will
silently appear to hang while waiting for input. This might happen with 'tee':
$ perl guess.pl | tee capture.out
Use Devel::Autoflush to work around this:
$ perl -MDevel::Autoflush guess.pl | tee capture.out
Or set it in C<PERL5OPT>:
$ export PERL5OPT=-MDevel::Autoflush
$ perl guess.pl | tee capture.out
= SEE ALSO
=over 4
=item *
L<CPANPLUS::Internals::Utils::Autoflush> -- same idea but STDOUT only and
only available as part of the full CPANPLUS distribution
=back
=for :stopwords cpan testmatrix url annocpan anno bugtracker rt cpants kwalitee diff irc mailto metadata placeholders metacpan
=head1 SUPPORT
=head2 Bugs / Feature Requests
Please report any bugs or feature requests through the issue tracker
at L<https://github.com/dagolden/Devel-Autoflush/issues>.
You will be notified automatically of any progress on your issue.
=head2 Source Code
This is open source software. The code repository is available for
public review and contribution under the terms of the license.
L<https://github.com/dagolden/Devel-Autoflush>
git clone https://github.com/dagolden/Devel-Autoflush.git
=head1 AUTHOR
David Golden <dagolden@cpan.org>
=head1 COPYRIGHT AND LICENSE
This software is Copyright (c) 2014 by David Golden.
This is free software, licensed under:
The Apache License, Version 2.0, January 2004
=cut
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