#!perl

use strict;
use warnings;

our $AUTHORITY = 'cpan:PERLANCAR'; # AUTHORITY
our $DATE = '2023-02-14'; # DATE
our $DIST = 'App-sponge'; # DIST
our $VERSION = '0.002'; # VERSION

use Fcntl qw(:DEFAULT);
use Getopt::Std;

my %opts;
getopts('a', \%opts) or die "sponge: Error in options processing, bailing\n";

# soak input first
my $input; { local $/; $input = <STDIN> }

if (@ARGV) {
    my $fh;
    if ($opts{a}) {
        sysopen $fh, $ARGV[0], O_CREAT|O_WRONLY;
        seek $fh, 0, 2;
    } else {
        sysopen $fh, $ARGV[0], O_CREAT|O_TRUNC|O_WRONLY;
    }
    print $fh $input;
} else {
    # print to stdout
    print $input;
}

# ABSTRACT: Soak up standard input and write to a file (perl implementation)
# PODNAME: sponge

__END__

=pod

=encoding UTF-8

=head1 NAME

sponge - Soak up standard input and write to a file (perl implementation)

=head1 VERSION

This document describes version 0.002 of sponge (from Perl distribution App-sponge), released on 2023-02-14.

=head1 SYNOPSIS

 % sed '...' file | grep '...' | sponge [-a] file

=head1 DESCRIPTION

This is a simple perl implementation for the Unix utility B<sponge>. See its
documentation for more details. Any deviation of behavior compared to the
original C<sponge> is assumed as bug and can be reported.

=head1 HOMEPAGE

Please visit the project's homepage at L<https://metacpan.org/release/App-sponge>.

=head1 SOURCE

Source repository is at L<https://github.com/perlancar/perl-App-sponge>.

=head1 AUTHOR

perlancar <perlancar@cpan.org>

=head1 CONTRIBUTING


To contribute, you can send patches by email/via RT, or send pull requests on
GitHub.

Most of the time, you don't need to build the distribution yourself. You can
simply modify the code, then test via:

 % prove -l

If you want to build the distribution (e.g. to try to install it locally on your
system), you can install L<Dist::Zilla>,
L<Dist::Zilla::PluginBundle::Author::PERLANCAR>,
L<Pod::Weaver::PluginBundle::Author::PERLANCAR>, and sometimes one or two other
Dist::Zilla- and/or Pod::Weaver plugins. Any additional steps required beyond
that are considered a bug and can be reported to me.

=head1 COPYRIGHT AND LICENSE

This software is copyright (c) 2023 by perlancar <perlancar@cpan.org>.

This is free software; you can redistribute it and/or modify it under
the same terms as the Perl 5 programming language system itself.

=head1 BUGS

Please report any bugs or feature requests on the bugtracker website L<https://rt.cpan.org/Public/Dist/Display.html?Name=App-sponge>

When submitting a bug or request, please include a test-file or a
patch to an existing test-file that illustrates the bug or desired
feature.

=cut
