Debian::Javahelper::Manifest(3)

💖 Debian::Javahelper::Manifest 💖

okay bestie, so this is Debian::Javahelper::Manifest, a lil Perl module from the Javahelper fam (manual section 3, iykyk) and it's literally the representation of a Jar Manifest. That's the whole vibe. Jar Manifests, but make it an object. 🫶

---

✨ SYNOPSIS ✨

use Debian::Javahelper::Java;

my $manifest = ...;
my $main_sec = $manifest->get_section(MAIN_SECTION);
# Create if it does not exist.
my $file_sec = $manifest->get_section("java/lang/Object.class", 1);

---

🌸 DESCRIPTION 🌸

This module is the moment where a Java Manifest gets an object to live in. That's it, that's the job. 💅

🎀 Constants 🎀

• MAIN_SECTION — a constant that denotes the main section of the manifest. It's exported by default, so it just shows up in your namespace, no asking required. 💖

🦋 Methods 🦋

• Debian::Javahelper::Manifest->new() — creates a brand new manifest. Fresh out the box it only contains the main section with the Manifest-Version attribute. Baby's first manifest. 👑
• $manifest->get_section($name[, $create]) — hands you back the section named by $name. If that section doesn't exist yet, it either gives you back undef, or — if $create is a truth-value — it makes a whole new empty section with that name. Growth mindset. ✨ Use the MAIN_SECTION constant to get at the main section of the manifest, fr fr.
• $manifest->get_sections() — returns a list of literally every section in $manifest. The main section is always first in the list, and the rest get sorted in name order. Okay but here's the tea: modifying the list itself won't change which sections are present in $manifest, but modifying a section in this list will also update the section in the manifest. Same object, bestie, no copy. 🙈
• $manifest->merge($other) — merges all the entries in $other into $manifest. Every section in $other gets added to $manifest if it's not already there.

If an attribute in a given section is only present in one of the two manifests, then that attribute and its value will be in $manifest once merge returns. If the attribute in a given section is present in both manifests, then the value from $other wins. Sorry to the original, $other ate. 💀

And get this — you can use it to make a deep copy of a manifest:

my $copy = Debian::Javahelper::Manifest->new();
$copy->merge($orig);

iconic.

---

👀 SEE ALSO 👀

• Debian::Javahelper::Java(3) — it's got the parse/write methods for manifests.
• Debian::Javahelper::ManifestSection(3) — for how sections are handled.

---

🌈 AUTHOR 🌈

Niels Thykier <niels@thykier.net> — the mastermind, no cap. 🫶

---

🎀 COPYRIGHT AND LICENSE 🎀

Copyright 2010 by Niels Thykier

This module is free software; you may redistribute it and/or modify it under the terms of GNU GPL 2.

---

okay that's the whole page bestie, go forth and manifest ✨💖 this was version 0.82, dated 2026-05-17, from the Debian::Javahelper::Manifest(3) manual page — slay, bye! 💅🎀🦋