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Current File : /bin/X11/mimeopen
#!/usr/bin/perl

use strict;
our $VERSION = '0.29';
$|++;

# ########## #
# Parse ARGV #
# ########## #
my %args = ();
my %opts = (
	# name	=> [char, expect_arg_bit ]
	'help'		=> ['h'],
	'usage'		=> ['u'],
	'version'	=> ['v'],
	'stdin'		=> [''],
	'dereference'	=> ['L'],
	'debug'		=> ['D'],
	'database'	=> ['', 1],
	'magic-only'	=> ['M'],
	'ask'		=> ['a'],
	'ask-default'	=> ['d'],
	'no-ask'	=> ['n'],
);

while ((@ARGV) && ($ARGV[0] =~ /^-/)) {
	my $opt = shift @ARGV;
	if ($opt =~ /^--?$/) {
		last;
	}
	elsif ($opt =~ s/^--([\w-]+)(?:=(.*))?/$1/) {
		if (exists $opts{$opt}) {
			if ($opts{$opt}[1]) {
				my $arg = $2 || shift @ARGV;
				complain('--'.$opt, 2) unless defined $arg;
				$args{$opt} .= ( $args{$opt} ? ' ' : '' ) . $arg;
			}
			else { $args{$opt}++ }
		}
		else { complain('--'.$opt) }
	}
	elsif ($opt =~ s/^-(?!-)//) {
		foreach my $o (split //, $opt) {
			my ($key) = grep { $opts{$_}[0] eq $o } keys %opts;
			complain($o) unless $key;

			if ($opts{$key}[1]) {
				my $arg = shift @ARGV;
				complain('-'.$o, 2) unless defined $arg;
				$args{$key} .= ( $args{$key} ? ' ' : '' ).$arg; # join with whitespace
			}
			else { $args{$key}++; }
		}
	}
	else { complain($opt) }
}

if ($args{help} || $args{usage}) {
	eval 'use Pod::Usage';
	die "Could not find perl module Pod::Usage\n" if $@;
	pod2usage( {
		-verbose => 1,
		-exitval => 0,
	} );
}

if ($args{version}) {
	print "mimeopen $VERSION\n\n", << 'EOV';
Copyright (c) 2005, 2012 Jaap G Karssenberg. All rights reserved.
This program is free software; you can redistribute it and/or
modify it under the same terms as Perl.

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.
EOV
	exit 0;
}

complain(undef, 4) unless scalar(@ARGV);

# ############# #
# prepare stuff #
# ############# #

# --database
@File::MimeInfo::DIRS = split /:/, $args{database} if $args{database};

## Actually use our modules ##
eval 'use File::MimeInfo::Magic qw/mimetype magic/;';
die $@ if $@;
eval 'use File::MimeInfo::Applications;';
die $@ if $@;

*default = \&File::MimeInfo::default;

# --debug
if ($args{debug}) {
	$File::MimeInfo::DEBUG++;
	$File::MimeInfo::Magic::DEBUG++;
	print	'> Data dirs are: ', join( ', ',
			$args{database}
				? ( split /:/, $args{database} )
				: (
					File::BaseDir::xdg_data_home(),
					File::BaseDir::xdg_data_dirs()
				)
		), "\n";
}

# --dereference ## deprecated - so always true
$args{dereference} = 1;
if ($args{dereference}) {
	eval 'use File::Spec';
	die "Could not find perl module File::Spec\n" if $@;
}

# ######## #
# do stuff #
# ######## #

my $mimetype;

my $file = $ARGV[0];
# --dereference
my $f = ($args{dereference} && -l $file) ? resolvelink($file) : $file;
# --magic-only
$mimetype = $args{'magic-only'}
	? (magic($f) || default($f))
	: mimetype($f) ;

unless (length $mimetype) {
	print STDERR "Could not determine mimetype for file: $file\n";
	exit 5;
}

my ($default, @other) = mime_applications_all($mimetype);

## Removed this because user should always be able to select "Other..."
#unless($default or @other) {
#	print STDERR "No applications found for mimetype: $mimetype\n";
#	exit 6;
#}
##

if    ($args{'no-ask'}) {
	$default = defined($default) ? $default : $other[0];
}
elsif ($args{'ask'}) {
	$default = choose($mimetype, 0, grep defined($_), $default, @other);
}
elsif ($args{'ask-default'}) {
	$default = choose($mimetype, 1, grep defined($_), $default, @other);
}
elsif (! defined $default) {
	($default) = (@other == 1) ? (@other) : choose($mimetype, 1, @other);
}

print 'Opening '.join(', ', map qq{"$_"}, @ARGV)
	. ' with '.$default->get_value('Name')."  ($mimetype)\n";
#print STDERR "exec string: ".$default->parse_Exec(@ARGV)."\n";
if (@ARGV == 1 or $default->wants_list) {
	$default->exec(@ARGV);
}
else {
	my $last = pop @ARGV;
	fork or $default->exec($_) for @ARGV;
	$default->exec($last);
}

exit 7; # something went wrong in the exec

# ########### #
# Subroutines #
# ########### #

sub choose {
	my ($mime, $set_default, @app) = @_;
	print $set_default ?
		"Please choose a default application for files of type $mime\n\n" :
		"Please choose an application\n\n" ;
	my @done;
	for my $i (0 .. $#app) {
		my (undef, undef, $file) =
			File::Spec->splitpath( $app[$i]->{file} );
		$file =~ s/\.desktop$//;
		if (grep {$_ eq $file} @done) {
			$app[$i] = undef;
		}
		else {
			push @done, $file;
			print "\t", scalar(@done), ") ",
				$app[$i]->get_value('Name'), "  ($file)\n";
		}
	}
	@app = grep defined($_), @app;
	print "\t", scalar(@done)+1, ") Other...\n" if $set_default;
	print "\nuse application #";
	my $c = <STDIN>;
	chomp $c;

	unless ($c =~ /^\d+$/) {
		print STDERR "Cancelled\n";
		exit 8;
	}
	$c--; # base-1 => base-0

	if ($set_default and $c == scalar(@done)) {
		# ask for custom command
		print "use command: ";
		my $cmd = <STDIN>;
		chomp $cmd;
		push @app,
			eval { mime_applications_set_custom($mime => $cmd) };
		warn $@ if $@;
	}
	elsif ($c > scalar(@app)) {
		print STDERR "Cancelled\n";
		exit 8;
	}
	elsif ($set_default) {
		eval { mime_applications_set_default($mime => $app[$c]) };
		warn $@ if $@;
	}

	return $app[$c];
}

sub complain { # Error messages
	my $opt = shift;
	my $m = shift || 1;

	my $bn = $0;
	$bn =~ s|^(.*/)*||;
	if ($m == 1) { print STDERR "$bn: unrecognized option '$opt'" }
	elsif ($m == 2) { print STDERR "$bn: option '$opt' requires an argument" }
	elsif ($m == 3) { print STDERR "$bn: $opt: No such file or directory\n" }
	elsif ($m == 4) { print STDERR "usage: $bn [options] files" }

	print "\nTry '$bn --help' for more information.\n" unless $m == 3;
	exit $m;
}

sub resolvelink { # --dereference
	my $file = shift;
	my $link = readlink($file) || return $file;
	my (undef, $dir, undef) = File::Spec->splitpath($file);
	$link = File::Spec->rel2abs($link, $dir);
	$link = resolvelink($link) if -l $link; # recurs
	return $link;
}

__END__

=head1 NAME

mimeopen - Open files by mimetype

=head1 SYNOPSIS

mimeopen [options] [-] files

=head1 DESCRIPTION

This script tries to determine the mimetype of a file and open it with the
default desktop application. If no default application is configured the
user is prompted with an "open with" menu in the terminal.

To use this script you need the freedesktop mime-info database and the
freedesktop desktop-file-utils package. See L<File::MimeInfo::Applications(3)>
for more details.

=head1 OPTIONS

=over 4

=item B<-a>, B<--ask>

Do not execute the default application but ask which application to run.
This does not change the default application.

=item B<-d>, B<--ask-default>

Let the user choose a new default program for given files.

=item B<-n>, B<--no-ask>

Don't ask the user which program to use. Choose the default program or the
first program known to handle the file mimetype. This does not set the
default application.

=item B<-M>, B<--magic-only>

Do not check for extensions, globs or inode type, only look at the content
of the file. This is particularly useful if for some reason you don't trust
the name or the extension a file has.

=item B<--database>=I<mimedir>:I<mimedir>:...

Force the program to look in these directories for the shared mime-info
database. The directories specified by the basedir specification
are ignored.

=item B<-D>, B<--debug>

Print debug information about how the mimetype was determined.

=item B<-h>, B<--help>

=item B<-u>, B<--usage>

Print a help message and exits.

=item B<-v>, B<--version>

Print the version of the program and exit.

=back

=head1 DEPRECATED OPTIONS

=over 4

=item B<-L>, B<--dereference>

Follow symbolic links.
Deprecated because this is the logical default for this command.
Ignored silently.

=back

=head1 BUGS

If you find bugs, please file them in our Github
issue tracker at L<https://github.com/mbeijen/File-MimeInfo/issues>.

See File::MimeInfo::Applications(3) and File::DesktopEntry(3)
for some limitations.

=head1 AUTHOR

Jaap Karssenberg E<lt>pardus@cpan.orgE<gt>
Maintained by Michiel Beijen E<lt>michiel.beijen@gmail.comE<gt>

=head1 COPYRIGHT

Copyright (c) 2002, 2012 Jaap G Karssenberg. All rights reserved.
This program is free software; you can redistribute it and/or
modify it under the same terms as Perl.

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.

=head1 SEE ALSO

L<mimetype(1)>,
L<update-mime-database(1)>,
L<update-desktop-database(1)>,
L<File::MimeInfo(3)>,
L<File::MimeInfo::Applications(3)>
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