| Index: third_party/dpkg-dev/scripts/Dpkg/Compression/Process.pm
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| diff --git a/third_party/dpkg-dev/scripts/Dpkg/Compression/Process.pm b/third_party/dpkg-dev/scripts/Dpkg/Compression/Process.pm
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| deleted file mode 100644
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| index 03d6f276d5069a01f677192afc9feeb85208c0d8..0000000000000000000000000000000000000000
|
| --- a/third_party/dpkg-dev/scripts/Dpkg/Compression/Process.pm
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| +++ /dev/null
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| @@ -1,207 +0,0 @@
|
| -# Copyright © 2008-2010 Raphaël Hertzog <hertzog@debian.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 of the License, or
|
| -# (at your option) any later version.
|
| -#
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| -# 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
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| -# GNU General Public License for more details.
|
| -#
|
| -# You should have received a copy of the GNU General Public License
|
| -# along with this program. If not, see <https://www.gnu.org/licenses/>.
|
| -
|
| -package Dpkg::Compression::Process;
|
| -
|
| -use strict;
|
| -use warnings;
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| -
|
| -our $VERSION = '1.00';
|
| -
|
| -use Carp;
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| -
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| -use Dpkg::Compression;
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| -use Dpkg::ErrorHandling;
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| -use Dpkg::Gettext;
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| -use Dpkg::IPC;
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| -
|
| -=encoding utf8
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| -
|
| -=head1 NAME
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| -
|
| -Dpkg::Compression::Process - run compression/decompression processes
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| -
|
| -=head1 DESCRIPTION
|
| -
|
| -This module provides an object oriented interface to run and manage
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| -compression/decompression processes.
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| -
|
| -=head1 METHODS
|
| -
|
| -=over 4
|
| -
|
| -=item my $proc = Dpkg::Compression::Process->new(%opts)
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| -
|
| -Create a new instance of the object. Supported options are "compression"
|
| -and "compression_level" (see corresponding set_* functions).
|
| -
|
| -=cut
|
| -
|
| -sub new {
|
| - my ($this, %args) = @_;
|
| - my $class = ref($this) || $this;
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| - my $self = {};
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| - bless $self, $class;
|
| - $self->set_compression($args{compression} || compression_get_default());
|
| - $self->set_compression_level($args{compression_level} ||
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| - compression_get_default_level());
|
| - return $self;
|
| -}
|
| -
|
| -=item $proc->set_compression($comp)
|
| -
|
| -Select the compression method to use. It errors out if the method is not
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| -supported according to C<compression_is_supported> (of
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| -B<Dpkg::Compression>).
|
| -
|
| -=cut
|
| -
|
| -sub set_compression {
|
| - my ($self, $method) = @_;
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| - error(_g('%s is not a supported compression method'), $method)
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| - unless compression_is_supported($method);
|
| - $self->{compression} = $method;
|
| -}
|
| -
|
| -=item $proc->set_compression_level($level)
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| -
|
| -Select the compression level to use. It errors out if the level is not
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| -valid according to C<compression_is_valid_level> (of
|
| -B<Dpkg::Compression>).
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| -
|
| -=cut
|
| -
|
| -sub set_compression_level {
|
| - my ($self, $level) = @_;
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| - error(_g('%s is not a compression level'), $level)
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| - unless compression_is_valid_level($level);
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| - $self->{compression_level} = $level;
|
| -}
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| -
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| -=item my @exec = $proc->get_compress_cmdline()
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| -
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| -=item my @exec = $proc->get_uncompress_cmdline()
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| -
|
| -Returns a list ready to be passed to C<exec>, its first element is the
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| -program name (either for compression or decompression) and the following
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| -elements are parameters for the program.
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| -
|
| -When executed the program acts as a filter between its standard input
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| -and its standard output.
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| -
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| -=cut
|
| -
|
| -sub get_compress_cmdline {
|
| - my ($self) = @_;
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| - my @prog = (@{compression_get_property($self->{compression}, 'comp_prog')});
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| - my $level = '-' . $self->{compression_level};
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| - $level = '--' . $self->{compression_level}
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| - if $self->{compression_level} !~ m/^[1-9]$/;
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| - push @prog, $level;
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| - return @prog;
|
| -}
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| -
|
| -sub get_uncompress_cmdline {
|
| - my ($self) = @_;
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| - return (@{compression_get_property($self->{compression}, 'decomp_prog')});
|
| -}
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| -
|
| -sub _sanity_check {
|
| - my ($self, %opts) = @_;
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| - # Check for proper cleaning before new start
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| - error(_g('Dpkg::Compression::Process can only start one subprocess at a time'))
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| - if $self->{pid};
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| - # Check options
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| - my $to = my $from = 0;
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| - foreach (qw(file handle string pipe)) {
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| - $to++ if $opts{"to_$_"};
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| - $from++ if $opts{"from_$_"};
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| - }
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| - croak 'exactly one to_* parameter is needed' if $to != 1;
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| - croak 'exactly one from_* parameter is needed' if $from != 1;
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| - return %opts;
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| -}
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| -
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| -=item $proc->compress(%opts)
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| -
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| -Starts a compressor program. You must indicate where it will read its
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| -uncompressed data from and where it will write its compressed data to.
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| -This is accomplished by passing one parameter C<to_*> and one parameter
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| -C<from_*> as accepted by B<Dpkg::IPC::spawn>.
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| -
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| -You must call C<wait_end_process> after having called this method to
|
| -properly close the sub-process (and verify that it exited without error).
|
| -
|
| -=cut
|
| -
|
| -sub compress {
|
| - my $self = shift;
|
| - my %opts = $self->_sanity_check(@_);
|
| - my @prog = $self->get_compress_cmdline();
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| - $opts{exec} = \@prog;
|
| - $self->{cmdline} = "@prog";
|
| - $self->{pid} = spawn(%opts);
|
| - delete $self->{pid} if $opts{to_string}; # wait_child already done
|
| -}
|
| -
|
| -=item $proc->uncompress(%opts)
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| -
|
| -Starts a decompressor program. You must indicate where it will read its
|
| -compressed data from and where it will write its uncompressed data to.
|
| -This is accomplished by passing one parameter C<to_*> and one parameter
|
| -C<from_*> as accepted by B<Dpkg::IPC::spawn>.
|
| -
|
| -You must call C<wait_end_process> after having called this method to
|
| -properly close the sub-process (and verify that it exited without error).
|
| -
|
| -=cut
|
| -
|
| -sub uncompress {
|
| - my $self = shift;
|
| - my %opts = $self->_sanity_check(@_);
|
| - my @prog = $self->get_uncompress_cmdline();
|
| - $opts{exec} = \@prog;
|
| - $self->{cmdline} = "@prog";
|
| - $self->{pid} = spawn(%opts);
|
| - delete $self->{pid} if $opts{to_string}; # wait_child already done
|
| -}
|
| -
|
| -=item $proc->wait_end_process(%opts)
|
| -
|
| -Call B<Dpkg::IPC::wait_child> to wait until the sub-process has exited
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| -and verify its return code. Any given option will be forwarded to
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| -the C<wait_child> function. Most notably you can use the "nocheck" option
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| -to verify the return code yourself instead of letting C<wait_child> do
|
| -it for you.
|
| -
|
| -=cut
|
| -
|
| -sub wait_end_process {
|
| - my ($self, %opts) = @_;
|
| - $opts{cmdline} ||= $self->{cmdline};
|
| - wait_child($self->{pid}, %opts) if $self->{pid};
|
| - delete $self->{pid};
|
| - delete $self->{cmdline};
|
| -}
|
| -
|
| -=back
|
| -
|
| -=head1 AUTHOR
|
| -
|
| -Raphaël Hertzog <hertzog@debian.org>.
|
| -
|
| -=cut
|
| -
|
| -1;
|
|
|