My thanks to all who provided help and assistance with this.
I now have a working test solution which I present below as this may be useful for others.
I used Path::Tiny,
as originally shown by ++tybalt89,
to generate the list of files for archiving.
I needed to tweak the suggested code in a few places, as follows:
-
Path::Tiny's visit() method
"Executes a callback for each child of a directory.".
This meant that the parent directory wasn't added to the array for add_files():
easily fixed by preloading that array with the parent directory.
-
For my purposes, the contents of the directory structure was well known,
so no filtering — based on file types, permissions or other characteristics — was required.
In other situations, some filtering may be required:
see ++tybalt89's and ++Tux'
examples[1,2]
for possible ways to achieve this.
-
I also needed to change directories to get the exact archive I wanted.
This may not be necessary in other circumstances.
Note the use of the autodie pragma in a limited, lexical scope
to handle problems with chdir
and provide useful feedback if they occur.
-
Not an actual tweak required by this code,
but use 5.016; was added because it mirrors the version I'm coding to for $work$
(and increases confidence that this won't have issues in my production environment).
If you're using this code as a template, and not adding anything fancy, replacing that with a simple
use strict; would probably be fine.
Here's the test script.
Note that the directory structure under $src_dir is exactly the same as that presented in the OP.
#!/usr/bin/env perl
use 5.016;
use warnings;
use Archive::Tar;
use Cwd;
use Path::Tiny;
my $src_dir = '/Users/ken/tmp/test_arch/src';
my $zip_dir = '/Users/ken/tmp/test_arch/zip';
my $top_dir = 'fred';
my $zip_name = 'fred.tar.gz';
my $zip_path = path($zip_dir, $zip_name);
{
use autodie;
my $cur_dir = getcwd;
chdir $src_dir or die;
my @tar_files = ($top_dir);
path($top_dir)->visit(
sub { push @tar_files, "$_" }, { recurse => 1 }
);
my $tar = Archive::Tar::->new();
$tar->add_files(@tar_files);
$tar->write($zip_path, COMPRESS_GZIP);
chdir $cur_dir or die;
}
A sample run, as well as various checks, are in the spoiler: