File::Find - Get a lazy list of a directory tree
my @list := find(dir => 'foo');
my $list = find(dir => 'foo');
File::Find allows you to get the contents of the given directory, recursively, depth first. The only exported function,
find(), generates a lazy list of files in given directory. Every element of the list is an
IO::Path object, described below.
find() takes one (or more) named arguments. The
dir argument is mandatory, and sets the directory
find() will traverse. There are also few optional arguments. If more than one is passed, all of them must match for a file to be returned.
Specify a name of the file
File::Find is ought to look for. If you pass a string here,
find() will return only the files with the given name. When passing a regex, only the files with path matching the pattern will be returned. Any other type of argument passed here will just be smartmatched against the path (which is exactly what happens to regexes passed, by the way).
Given a type,
find() will only return files being the given type. The available types are
Exclude is meant to be used for skipping certain big and uninteresting directories, like '.git'. Neither them nor any of their contents will be returned, saving a significant amount of time.
The value of
exclude will be smartmatched against each IO object found by File::Find. It's recommended that it's passed as an IO object (or a Junction of those) so we avoid silly things like slashes vs backslashes on different platforms.
find() to not stop finding files on errors such as 'Access is denied', but rather ignore the errors and keep going.
find will recursively traverse a directory tree, descending into any subdirectories it finds. This behaviour can be changed by setting
recursive to a false value. In this case, only the first level entries will be processed.
Please note, that this module is not trying to be the verbatim port of Perl's File::Find module. Its interface is closer to Perl's File::Find::Rule, and its features are planned to be similar one day.
List assignment is eager in Raku, so if You assign
find() result to an array, the elements will be copied and the laziness will be spoiled. For a proper lazy list, use either binding (
:=) or assign a result to a scalar value (see SYNOPSIS).