Template::Plugin::Directory - Plugin for generating directory listings
[% USE dir = Directory(dirpath) %]
# files returns list of regular files
[% FOREACH file = dir.files %]
[% file.name %] [% file.path %] ...
[% END %]
# dirs returns list of sub-directories
[% FOREACH subdir = dir.dirs %]
[% subdir.name %] [% subdir.path %] ...
[% END %]
# list returns both interleaved in order
[% FOREACH item = dir.list %]
[% IF item.isdir %]
Directory: [% item.name %]
[% ELSE %]
File: [% item.name %]
[% END %]
[% END %]
# define a VIEW to display dirs/files
[% VIEW myview %]
[% BLOCK file %]
File: [% item.name %]
[% END %]
[% BLOCK directory %]
Directory: [% item.name %]
[% item.content(myview) | indent -%]
[% END %]
[% END %]
# display directory content using view
[% myview.print(dir) %]
This Template Toolkit plugin provides a simple interface to directory
listings. It is derived from the the Template::Plugin::File manpage module and
uses the Template::Plugin::File manpage object instances to represent files within
a directory. Sub-directories within a directory are represented by
further Template::Plugin::Directory instances.
The constructor expects a directory name as an argument.
[% USE dir = Directory('/tmp') %]
It then provides access to the files and sub-directories contained within
the directory.
# regular files (not directories)
[% FOREACH file IN dir.files %]
[% file.name %]
[% END %]
# directories only
[% FOREACH file IN dir.dirs %]
[% file.name %]
[% END %]
# files and/or directories
[% FOREACH file IN dir.list %]
[% file.name %] ([% file.isdir ? 'directory' : 'file' %])
[% END %]
The plugin constructor will throw a Directory error if the specified
path does not exist, is not a directory or fails to stat() (see
the Template::Plugin::File manpage). Otherwise, it will scan the directory and
create lists named 'files' containing files, 'dirs' containing
directories and 'list' containing both files and directories combined.
The nostat option can be set to disable all file/directory checks
and directory scanning.
Each file in the directory will be represented by a
the Template::Plugin::File manpage object instance, and each directory by another
Template::Plugin::Directory. If the recurse flag is set, then those
directories will contain further nested entries, and so on. With the
recurse flag unset, as it is by default, then each is just a place
marker for the directory and does not contain any further content
unless its scan() method is explicitly called. The isdir flag can
be tested against files and/or directories, returning true if the item
is a directory or false if it is a regular file.
[% FOREACH file = dir.list %]
[% IF file.isdir %]
* Directory: [% file.name %]
[% ELSE %]
* File: [% file.name %]
[% END %]
[% END %]
This example shows how you might walk down a directory tree, displaying
content as you go. With the recurse flag disabled, as is the default,
we need to explicitly call the scan() method on each directory, to force
it to lookup files and further sub-directories contained within.
[% USE dir = Directory(dirpath) %]
* [% dir.path %]
[% INCLUDE showdir %]
[% BLOCK showdir -%]
[% FOREACH file = dir.list -%]
[% IF file.isdir -%]
* [% file.name %]
[% file.scan -%]
[% INCLUDE showdir dir=file FILTER indent(4) -%]
[% ELSE -%]
- [% f.name %]
[% END -%]
[% END -%]
[% END %]
This example is adapted (with some re-formatting for clarity) from
a test in t/directry.t which produces the following output:
* test/dir
- file1
- file2
* sub_one
- bar
- foo
* sub_two
- waz.html
- wiz.html
- xyzfile
The recurse flag can be set (disabled by default) to cause the
constructor to automatically recurse down into all sub-directories,
creating a new Template::Plugin::Directory object for each one and
filling it with any further content. In this case there is no need
to explicitly call the scan() method.
[% USE dir = Directory(dirpath, recurse=1) %]
...
[% IF file.isdir -%]
* [% file.name %]
[% INCLUDE showdir dir=file FILTER indent(4) -%]
[% ELSE -%]
...
The directory plugin also provides support for views. A view can be defined as
a VIEW ... END block and should contain BLOCK definitions for files
('file') and directories ('directory').
[% VIEW myview %]
[% BLOCK file %]
- [% item.name %]
[% END %]
[% BLOCK directory %]
* [% item.name %]
[% item.content(myview) FILTER indent %]
[% END %]
[% END %]
The view print() method can then be called, passing the
Directory object as an argument.
[% USE dir = Directory(dirpath, recurse=1) %]
[% myview.print(dir) %]
When a directory is presented to a view, either as [% myview.print(dir) %]
or [% dir.present(view) %], then the directory BLOCK within the
myview VIEW is processed. The item variable will be set to alias the
Directory object.
[% BLOCK directory %]
* [% item.name %]
[% item.content(myview) FILTER indent %]
[% END %]
In this example, the directory name is first printed and the content(view)
method is then called to present each item within the directory to the view.
Further directories will be mapped to the directory block, and files will be
mapped to the file block.
With the recurse option disabled, as it is by default, the directory
block should explicitly call a scan() on each directory.
[% VIEW myview %]
[% BLOCK file %]
- [% item.name %]
[% END %]
[% BLOCK directory %]
* [% item.name %]
[% item.scan %]
[% item.content(myview) FILTER indent %]
[% END %]
[% END %]
[% USE dir = Directory(dirpath) %]
[% myview.print(dir) %]
Michael Stevens wrote the original Directory plugin on which this is based.
Andy Wardley split it into separate File and
Directory plugins, added some extra code and
documentation for VIEW support, and made a few other minor tweaks.
Copyright (C) 2000-2007 Michael Stevens, Andy Wardley.
This module is free software; you can redistribute it and/or
modify it under the same terms as Perl itself.
the Template::Plugin manpage, the Template::Plugin::File manpage, the Template::View manpage
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