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lib/Aion/Fs.pm  view on Meta::CPAN

	NLINK_NO	=> 3,	# Количество жестких ссылок
	UID_NO		=> 4,	# Идентификатор пользователя-владельца
	GID_NO		=> 5,	# Идентификатор группы-владельца
	RDEV_NO		=> 6,	# Номер устройства (если это специальный файл)
	SIZE_NO		=> 7,	# Размер файла в байтах
	ATIME_NO	=> 8,	# Время последнего доступа
	MTIME_NO	=> 9,	# Время последнего изменения
	CTIME_NO	=> 10,	# Время последнего изменения inode
	BLKSIZE_NO	=> 11,	# Размер блока ввода-вывода
	BLOCKS_NO	=> 12,	# Количество выделенных блоков
};

# Вернуть время модификации файла
sub mtime(;$) {
	my ($file) = @_ == 0? $_: @_;
	($file) = @$file if ref $file;
	(Time::HiRes::stat $file)[MTIME_NO] // die "mtime $file: $!"
}

# Информация о файле в виде хеша
sub sta(;$) {
	my ($path) = @_ == 0? $_: @_;
	($path) = @$path if ref $path;
	
	my %sta = (path => $path);
	@sta{qw/dev ino mode nlink uid gid rdev size atime mtime ctime blksize blocks/} = Time::HiRes::stat $path or die "sta $path: $!";
# 	@sta{qw/
# 		 user_can_exec user_can_read   user_can_write
# 		group_can_exec group_can_read group_can_write
# 		other_can_exec other_can_read other_can_write
# 	/} = (
# 		
# 	);
	\%sta
}

# Файловые фильтры
sub _filters(@) {
	map {
		if(ref $_ eq "CODE") {$_}
		elsif(ref $_ eq "Regexp") { my $re = $_; sub { $_ =~ $re } }
		elsif(/^-([a-z]+)$/) {
			eval join "", "sub { ", (join " && ", map "-$_()", split //, $1), " }"
		}
		else { my $re = wildcard(); sub { $_ =~ $re } }
	} @_
}

# Найти файлы
sub find(;@) {
	my $files = @_? shift: $_;
    $files = [$files] unless ref $files;

	my @noenters; my $errorenter = sub {};
	
	my $ex = @_ && ref($_[$#_]) eq 'Aion::Fs::Find'
		? pop
		: undef;

	if($ex) {
		bless $ex, 'Aion::Fs';
		if(Scalar::Util::reftype $ex eq 'CODE') {
			$errorenter = $ex;
		} else {
			$errorenter = bless pop @$ex, undef if Scalar::Util::reftype($ex->[$#$ex]) eq "CODE";
			push @noenters, _filters @$ex;
		}
	}
	
	my @filters = _filters @_;

	my $iter = Aion::Fs::Find->new(
		noenters => \@noenters,
		errorenter => $errorenter,
		filters => \@filters,
		files => $files,
	);

	defined(wantarray)
		? (wantarray? @$iter: $iter)
		: do { while(defined $iter->next) {} };
}

# Не входить в подкаталоги
sub noenter(@) {
	bless [@_], "Aion::Fs::Find"
}

# Вызывается для всех ошибок ввода-вывода
sub errorenter(&) {
	bless shift, "Aion::Fs::Find"
}

# Останавливает find будучи вызван с одного из его фильтров, errorenter или noenter
sub find_stop() {
	die bless \(my $stop = 1), "Aion::Fs::Find"
}

# Производит замену во всех указанных файлах. Возвращает файлы в которых замен не было
sub replace(&@) {
    my $fn = shift;
	my @noreplace; local $_; my $pkg = caller;
	my $aref = "$pkg\::a";	my $bref = "$pkg\::b";
    for $$aref (@_) {
		if(ref $$aref) { ($$aref, $$bref) = @$$aref } else { $$bref = ":utf8" }
        my $file = $_ = cat [$$aref, $$bref];
        $fn->();
		if($file ne $_) { lay [$$aref, $$bref], $_ } else { push @noreplace, $$aref if defined wantarray }
    }
	@noreplace
}

# Стирает все указанные файлы. Возвращает переданные файлы
sub erase(@) {
    -d? rmdir: unlink or die "erase ${\(-d? 'dir': 'file')} $_: $!" for @_;
	@_
}

# Переводит вилдкард в регулярку
sub wildcard(;$) {
	my ($wildcard) = @_;
	$wildcard = $_ if @_ == 0;
	$wildcard =~ s{
		(?<file> \*\*)
		| (?<path> \*)
		| (?<anyn> \?\? )
		| (?<any> \? )
		| (?<w1> \{ )
		| (?<w2> \} )
		| (?<comma> , )
		| .
	}{
		exists $+{file}? "[^/]*?":
		exists $+{path}? ".*?":
		exists $+{anyn}? "[^/]":
		exists $+{any}? ".":
		exists $+{w1}? "(":
		exists $+{w2}? ")":
		exists $+{comma}? "|":
		quotemeta $&
	}gxe;
	qr/^$wildcard$/ns
}

# Открывает файл на указанной строке в редакторе
use config EDITOR => "vscodium %p:%l";
sub goto_editor($$) {
	my ($path, $line) = @_;
	my $p = EDITOR;
	$p =~ s!%p!$path!;
	$p =~ s!%l!$line!;
	my $status = system $p;
	die "$path:$line --> $status" if $status;
	return;
}

lib/Aion/Fs.pm  view on Meta::CPAN

=item * L<Path::Util> - C<$filename = basename($dir)>.

=item * L<Parse::Path> – C<< Parse::Path-E<gt>new(path =E<gt> 'gophers[0].food.count', style =E<gt> 'DZIL')-E<gt>push("chunk") >>. Works with paths as arrays (C<push>, C<pop>, C<shift>, C<splice>). It also overloads comparison operators. It has sty...

=back

=head2 transpath ($path?, $from, $to)

Converts a path from one OS format to another.

If C<$path> is not specified, C<$_> is used.

For a list of supported operating systems, see the examples of the C<path> subroutine just above or like this: C<keys %Aion::Fs::FS>.

OS names are case insensitive.

	local $_ = ">x>y>z.doc.zip";
	transpath "vos", "unix"       # \> /x/y/z.doc.zip
	transpath "vos", "VMS"        # \> [.x.y]z.doc.zip
	transpath $_, "vos", "RiscOS" # \> .x.y.z/doc/zip

=head2 splitdir (;$dir)

Splits a directory into components. The directory should first be obtained from C<< path-E<gt>{dir} >>.

	local $^O = "unix";
	[ splitdir "/x/" ]    # --> ["", "x", ""]

=head2 joindir (;$dirparts)

Combines a directory from its components. The resulting directory should then be included in C<< path +{dir =E<gt> $dir} >>.

	local $^O = "unix";
	joindir qw/x y z/    # => x/y/z
	
	path +{ dir => joindir qw/x y z/ } # => x/y/z/

=head2 splitext (;$ext)

Breaks the extension into its components. The extension should first be obtained from C<< path-E<gt>{ext} >>.

	local $^O = "unix";
	[ splitext ".x." ]    # --> ["", "x", ""]

=head2 joinext (;$extparts)

Combines an extension from its components. The resulting extension should then be included in C<< path +{ext =E<gt> $ext} >>.

	local $^O = "unix";
	joinext qw/x y z/    # => x.y.z
	
	path +{ ext => joinext qw/x y z/ } # => .x.y.z

=head2 include (;$pkg)

Connects C<$pkg> (if it has not already been connected via C<use> or C<require>) and returns it. Without a parameter, uses C<$_>.

lib/A.pm file:

	package A;
	sub new { bless {@_}, shift }
	1;

lib/N.pm file:

	package N;
	sub ex { 123 }
	1;



	use lib "lib";
	include("A")->new               # ~> A=HASH\(0x\w+\)
	[map include, qw/A N/]          # --> [qw/A N/]
	{ local $_="N"; include->ex }   # -> 123

=head2 catonce (;$file)

Reads the file for the first time. Any subsequent attempt to read this file returns C<undef>. Used to insert js and css modules into the resulting file. Without a parameter, uses C<$_>.

=over

=item * C<$file> can contain arrays of two elements. The first is considered as a path, and the second as a layer. The default layer is C<:utf8>.

=item * If C<$file> is not specified, use C<$_>.

=back

	local $_ = "catonce.txt";
	lay "result";
	catonce  # -> "result"
	catonce  # -> undef
	
	eval { catonce[] }; $@ # ~> catonce not use ref path!

=head2 wildcard (;$wildcard)

Converts a file mask to a regular expression. Without a parameter, uses C<$_>.

=over

=item * C<**> - C<[^/]*>

=item * C<*> - C<.*>

=item * C<?> - C<.>

=item * C<??> - C<[^/]>

=item * C<{> - C<(>

=item * C<}> - C<)>

=item * C<,> - C<|>

=item * Other characters are escaped using C<quotemeta>.

=back

	wildcard "*.{pm,pl}"  # \> (?^usn:^.*?\.(pm|pl)$)
	wildcard "?_??_**"  # \> (?^usn:^._[^/]_[^/]*?$)