/ 
SHARYANTO-Utils-0.55
River stage zero No dependents
/ SHARYANTO::File::Util

NAME

SHARYANTO::File::Util - File-related utilities

VERSION

version 0.55

SYNOPSIS

use SHARYANTO::File::Util qw(file_exists l_abs_path dir_empty);

print "file exists" if file_exists("/path/to/file/or/dir");
print "absolute path = ", l_abs_path("foo");
print "dir exists and is empty" if dir_empty("/path/to/dir");

DESCRIPTION

FUNCTIONS

None are exported by default, but they are exportable.

file_exists($path) => BOOL

This routine is just like the -e test, except that it assume symlinks with non-existent target as existing. If sym is a symlink to a non-existing target:

-e "sym"             # false, Perl performs stat() which follows symlink

but:

-l "sym"             # true, Perl performs lstat()
-e _                 # false

This function performs the following test:

!(-l "sym") && (-e _) || (-l _)

l_abs_path($path) => STR

Just like Cwd::abs_path(), except that it will not follow symlink if $path is symlink (but it will follow symlinks for the parent paths).

Example:

use Cwd qw(getcwd abs_path);

say getcwd();              # /home/steven
# s is a symlink to /tmp/foo
say abs_path("s");         # /tmp/foo
say l_abs_path("s");       # /home/steven/s
# s2 is a symlink to /tmp
say abs_path("s2/foo");    # /tmp/foo
say l_abs_path("s2/foo");  # /tmp/foo

Mnemonic: l_abs_path -> abs_path is analogous to lstat -> stat.

Note: currently uses hardcoded / as path separator.

dir_empty($dir) => BOOL

Will return true if $dir exists and is empty.

None are exported by default, but they are exportable.

FAQ

Where is file_empty()?

For checking if some path exists, is a regular file, and is empty (content is zero-length), you can simply use the -z filetest operator.

AUTHOR

Steven Haryanto <stevenharyanto@gmail.com>

COPYRIGHT AND LICENSE

This software is copyright (c) 2013 by Steven Haryanto.

This is free software; you can redistribute it and/or modify it under the same terms as the Perl 5 programming language system itself.