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Name	Size	Permission	Date
Copy	[ DIR ]	drwxr-xr-x	2020-08-24 23:55
StripNondeterminism	[ DIR ]	drwxr-xr-x	2020-08-24 23:49
Rename.pm	5.25 KB	-rw-r--r--	2015-06-05 00:55
StripNondeterminism.pm	3.84 KB	-rw-r--r--	2017-05-20 15:16

Rename

#
# Copyright 2014 Andrew Ayer
#
# This file is part of strip-nondeterminism.
#
# strip-nondeterminism 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 3 of the License, or
# (at your option) any later version.
#
# strip-nondeterminism 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.
#
# You should have received a copy of the GNU General Public License
# along with strip-nondeterminism.  If not, see <http://www.gnu.org/licenses/>.
#
package File::StripNondeterminism;

use strict;
use warnings;

use POSIX qw(tzset);
use File::StripNondeterminism::handlers::ar;
use File::StripNondeterminism::handlers::gettext;
use File::StripNondeterminism::handlers::gzip;
use File::StripNondeterminism::handlers::jar;
use File::StripNondeterminism::handlers::javadoc;
use File::StripNondeterminism::handlers::pearregistry;
use File::StripNondeterminism::handlers::png;
use File::StripNondeterminism::handlers::javaproperties;
use File::StripNondeterminism::handlers::zip;

our($VERSION, $canonical_time, $clamp_time);

$VERSION = '0.034'; # 0.034

sub init() {
	$ENV{'TZ'} = 'UTC';
	tzset();
}

sub _get_file_type($) {
	my $file=shift;
	open(FILE, '-|') # handle all filenames safely
	  || exec('file', $file)
	  || die "can't exec file: $!";
	my $type=<FILE>;
	close FILE;
	return $type;
}

sub get_normalizer_for_file($) {
	$_ = shift;

return undef if -d $_; # Skip directories

# ar
	if (m/\.a$/ && _get_file_type($_) =~ m/ar archive/) {
		return \&File::StripNondeterminism::handlers::ar::normalize;
	}
	# gettext
	if (m/\.g?mo$/ && _get_file_type($_) =~ m/GNU message catalog/) {
		return \&File::StripNondeterminism::handlers::gettext::normalize;
	}
	# gzip
	if (m/\.(gz|dz)$/ && _get_file_type($_) =~ m/gzip compressed data/) {
		return \&File::StripNondeterminism::handlers::gzip::normalize;
	}
	# jar
	if (m/\.(jar|war|hpi|apk)$/
		&& _get_file_type($_) =~ m/(Java|Zip) archive data/) {
		return \&File::StripNondeterminism::handlers::jar::normalize;
	}
	# javadoc
	if (m/\.html$/
		&& File::StripNondeterminism::handlers::javadoc::is_javadoc_file($_)) {
		return \&File::StripNondeterminism::handlers::javadoc::normalize;
	}
	# pear registry
	if (
		m/\.reg$/
		&& File::StripNondeterminism::handlers::pearregistry::is_registry_file(
			$_)
	  ) {
		return \&File::StripNondeterminism::handlers::pearregistry::normalize;
	}
	# PNG
	if (m/\.png$/ && _get_file_type($_) =~ m/PNG image data/) {
		return \&File::StripNondeterminism::handlers::png::normalize;
	}
	# pom.properties, version.properties
	if (
		m/\.properties$/
		&& File::StripNondeterminism::handlers::javaproperties::is_java_properties_file(
			$_)
	  ) {
		return
		  \&File::StripNondeterminism::handlers::javaproperties::normalize;
	}
	# zip
	if (m/\.(zip|pk3|epub|whl|xpi|htb|zhfst|par)$/
		&& _get_file_type($_) =~ m/Zip archive data|EPUB document/) {
		return \&File::StripNondeterminism::handlers::zip::normalize;
	}
	return undef;
}

our %typemap = (
	ar	=> \&File::StripNondeterminism::handlers::ar::normalize,
	gettext	=> \&File::StripNondeterminism::handlers::gettext::normalize,
	gzip	=> \&File::StripNondeterminism::handlers::gzip::normalize,
	jar	=> \&File::StripNondeterminism::handlers::jar::normalize,
	javadoc	=> \&File::StripNondeterminism::handlers::javadoc::normalize,
	pearregistry => \&File::StripNondeterminism::handlers::pearregistry::normalize,
	png	=> \&File::StripNondeterminism::handlers::png::normalize,
	javaproperties => \&File::StripNondeterminism::handlers::javaproperties::normalize,
	zip	=> \&File::StripNondeterminism::handlers::zip::normalize,
);
sub get_normalizer_by_name($) {
	$_ = shift;
	return $typemap{$_};
}