CentOS 7.0 - man page for template::plugin::file (centos section 3)

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Template::Plugin::File(3)      User Contributed Perl Documentation	Template::Plugin::File(3)

NAME
       Template::Plugin::File - Plugin providing information about files

SYNOPSIS
	   [% USE File(filepath) %]
	   [% File.path %]	   # full path
	   [% File.name %]	   # filename
	   [% File.dir %]	   # directory

DESCRIPTION
       This plugin provides an abstraction of a file.  It can be used to fetch details about
       files from the file system, or to represent abstract files (e.g. when creating an index
       page) that may or may not exist on a file system.

       A file name or path should be specified as a constructor argument.  e.g.

	   [% USE File('foo.html') %]
	   [% USE File('foo/bar/baz.html') %]
	   [% USE File('/foo/bar/baz.html') %]

       The file should exist on the current file system (unless "nostat" option set, see below)
       as an absolute file when specified with as leading '"/"' as per '"/foo/bar/baz.html"', or
       otherwise as one relative to the current working directory.  The constructor performs a
       "stat()" on the file and makes the 13 elements returned available as the plugin items:

	   dev ino mode nlink uid gid rdev size
	   atime mtime ctime blksize blocks

       e.g.

	   [% USE File('/foo/bar/baz.html') %]

	   [% File.mtime %]
	   [% File.mode %]
	   ...

       In addition, the "user" and "group" items are set to contain the user and group names as
       returned by calls to "getpwuid()" and "getgrgid()" for the file "uid" and "gid" elements,
       respectively.  On Win32 platforms on which "getpwuid()" and "getgrid()" are not available,
       these values are undefined.

	   [% USE File('/tmp/foo.html') %]
	   [% File.uid %]      # e.g. 500
	   [% File.user %]     # e.g. abw

       This user/group lookup can be disabled by setting the "noid" option.

	   [% USE File('/tmp/foo.html', noid=1) %]
	   [% File.uid %]      # e.g. 500
	   [% File.user %]     # nothing

       The "isdir" flag will be set if the file is a directory.

	   [% USE File('/tmp') %]
	   [% File.isdir %]    # 1

       If the "stat()" on the file fails (e.g. file doesn't exists, bad permission, etc) then the
       constructor will throw a "File" exception.  This can be caught within a "TRY...CATCH"
       block.

	   [% TRY %]
	      [% USE File('/tmp/myfile') %]
	      File exists!
	   [% CATCH File %]
	      File error: [% error.info %]
	   [% END %]

       Note the capitalisation of the exception type, '"File"', to indicate an error thrown by
       the "File" plugin, to distinguish it from a regular "file" exception thrown by the
       Template Toolkit.

       Note that the "File" plugin can also be referenced by the lower case name '"file"'.
       However, exceptions are always thrown of the "File" type, regardless of the capitalisation
       of the plugin named used.

	   [% USE file('foo.html') %]
	   [% file.mtime %]

       As with any other Template Toolkit plugin, an alternate name can be specified for the
       object created.

	   [% USE foo = file('foo.html') %]
	   [% foo.mtime %]

       The "nostat" option can be specified to prevent the plugin constructor from performing a
       "stat()" on the file specified.	In this case, the file does not have to exist in the file
       system, no attempt will be made to verify that it does, and no error will be thrown if it
       doesn't.  The entries for the items usually returned by "stat()" will be set empty.

	   [% USE file('/some/where/over/the/rainbow.html', nostat=1)
	   [% file.mtime %]	# nothing

METHODS
       All "File" plugins, regardless of the "nostat" option, have set a number of items relating
       to the original path specified.

   path
       The full, original file path specified to the constructor.

	   [% USE file('/foo/bar.html') %]
	   [% file.path %]     # /foo/bar.html

   name
       The name of the file without any leading directories.

	   [% USE file('/foo/bar.html') %]
	   [% file.name %]     # bar.html

   dir
       The directory element of the path with the filename removed.

	   [% USE file('/foo/bar.html') %]
	   [% file.name %]     # /foo

   ext
       The file extension, if any, appearing at the end of the path following a '"."' (not
       included in the extension).

	   [% USE file('/foo/bar.html') %]
	   [% file.ext %]      # html

   home
       This contains a string of the form '"../.."' to represent the upward path from a file to
       its root directory.

	   [% USE file('bar.html') %]
	   [% file.home %]     # nothing

	   [% USE file('foo/bar.html') %]
	   [% file.home %]     # ..

	   [% USE file('foo/bar/baz.html') %]
	   [% file.home %]     # ../..

   root
       The "root" item can be specified as a constructor argument, indicating a root directory in
       which the named file resides.  This is otherwise set empty.

	   [% USE file('foo/bar.html', root='/tmp') %]
	   [% file.root %]     # /tmp

   abs
       This returns the absolute file path by constructing a path from the "root" and "path"
       options.

	   [% USE file('foo/bar.html', root='/tmp') %]
	   [% file.path %]     # foo/bar.html
	   [% file.root %]     # /tmp
	   [% file.abs %]      # /tmp/foo/bar.html

   rel(path)
       This returns a relative path from the current file to another path specified as an
       argument.  It is constructed by appending the path to the '"home"' item.

	   [% USE file('foo/bar/baz.html') %]
	   [% file.rel('wiz/waz.html') %]      # ../../wiz/waz.html

EXAMPLES
	   [% USE file('/foo/bar/baz.html') %]

	   [% file.path  %]	 # /foo/bar/baz.html
	   [% file.dir	 %]	 # /foo/bar
	   [% file.name  %]	 # baz.html
	   [% file.home  %]	 # ../..
	   [% file.root  %]	 # ''
	   [% file.abs	 %]	 # /foo/bar/baz.html
	   [% file.ext	 %]	 # html
	   [% file.mtime %]	 # 987654321
	   [% file.atime %]	 # 987654321
	   [% file.uid	 %]	 # 500
	   [% file.user  %]	 # abw

	   [% USE file('foo.html') %]

	   [% file.path %]	     # foo.html
	   [% file.dir	%]	 # ''
	   [% file.name %]	     # foo.html
	   [% file.root %]	 # ''
	   [% file.home %]	 # ''
	   [% file.abs	%]	 # foo.html

	   [% USE file('foo/bar/baz.html') %]

	   [% file.path %]	     # foo/bar/baz.html
	   [% file.dir	%]	 # foo/bar
	   [% file.name %]	     # baz.html
	   [% file.root %]	 # ''
	   [% file.home %]	 # ../..
	   [% file.abs	%]	 # foo/bar/baz.html

	   [% USE file('foo/bar/baz.html', root='/tmp') %]

	   [% file.path %]	     # foo/bar/baz.html
	   [% file.dir	%]	 # foo/bar
	   [% file.name %]	     # baz.html
	   [% file.root %]	 # /tmp
	   [% file.home %]	 # ../..
	   [% file.abs	%]	 # /tmp/foo/bar/baz.html

	   # calculate other file paths relative to this file and its root
	   [% USE file('foo/bar/baz.html', root => '/tmp/tt2') %]

	   [% file.path('baz/qux.html') %]	   # ../../baz/qux.html
	   [% file.dir('wiz/woz.html')	%]     # ../../wiz/woz.html

AUTHORS
       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
       Copyright 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.

SEE ALSO
       Template::Plugin, Template::Plugin::Directory, Template::View

perl v5.16.3				    2011-12-20			Template::Plugin::File(3)


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