meta_package_manager.managers.antigen module

meta_package_manager.managers.antigen.antigen_source_path()

Locate the antigen.zsh file every invocation sources.

Antigen documents no install location of its own: its README has the user curl -L git.io/antigen > antigen.zsh into a directory of their choosing, then source /path-to-antigen/antigen.zsh. Discovery is therefore best-effort over the two conventional spots plus $ADOTDIR, and a user who keeps it anywhere else simply leaves the manager unavailable rather than seeing it misbehave.

Falls back to the first candidate when none exists, so the built command stays well-formed and fails to source, which is what makes the version probe double as Antigen’s presence check.

Return type:

Path

class meta_package_manager.managers.antigen.Antigen

Bases: PackageManager

Antigen is a plugin manager for Zsh.

Bundles are declared in the user’s .zshrc with antigen bundle calls, then cloned under $ADOTDIR. Packages are identified by the short owner/repo name Antigen reports, which is the id mpm keys them on.

Caution

Antigen documents no canonical install path, so a host sourcing it from a nonstandard location leaves the manager unavailable.

Initialize cli_errors list.

operation_notes: ClassVar = {'install': "A bundle is loaded for the current shell only, and installing one for real means editing the user's `.zshrc`, which `mpm` does not own.", 'outdated': 'Antigen compares nothing against its remotes short of performing the update; `upgrade --all` still works.'}

Per-operation hints rendered in the Notes column of the manager page’s Operations table.

Keyed by the Operations member name, each value is a single short sentence explaining why the manager lacks the operation, or what makes its implementation partial: the pointer a reader needs to judge whether the gap is one they could help close. Each sentence starts with a capital and closes with a period, and starts on a word rather than a code span, so the cell reads standalone beside its row. A blank cell stays silent: a manager documenting nothing documents no gap.

The full rationale never lives here: it belongs in a comment beside the implementing method (or beside this declaration, for an operation with no method to hang it on), so the sentence on the page stays a hint and the code keeps the story. The class docstring follows the same split: it keeps only what a user needs to run the tool day to day, never how mpm wraps it.

Validated by test_operation_notes, which also checks every key matches a real operation: a key outside the enum’s vocabulary would never reach a page.

name: str = 'Zsh Antigen'

Return package manager’s common name.

Default value is based on class name.

documentation_url: str | None = 'https://github.com/zsh-users/antigen/wiki'

Entry point of the project’s own documentation, or None when it has none.

The manual, the documentation site, or the man page of the CLI mpm drives: whichever page a user reads to learn the commands this manager wraps. Listed between homepage_url and repository_url in the links of the manager’s page, so a reader reaching for the tool’s reference finds it in the box of facts rather than in the prose below it.

Left unset where a link would state a fact twice or invent one: a tool documenting itself in its repository alone, whose README repository_url already reaches. A page about the ecosystem rather than the tool does not qualify either.

Where a project’s only site is its manual, that address belongs here and homepage_url stays unset: the slot names what the page is, and a reader reaching for the reference looks under the documentation link.

Never inherited, like every other link: the AUR helpers extending pacman each document themselves.

repository_url: str | None = 'https://github.com/zsh-users/antigen'

Repository holding the project’s code, or None when it has no public one.

Linked from the manager’s documentation page. Also what the weekly metrics sample reads: docs/docs_update.py writes it into the [tool.repomatic.metrics] subjects of pyproject.toml when its forge answers the sampler, through a mirror for a forge that does not.

Never inherited, for the same reason as wikipedia_url: the AUR helpers extending pacman each live in a repository of their own.

logo: str | None = 'zsh'

Slug of the brand mark standing for this manager in the documentation.

Names an SVG vendored under docs/assets/managers/, whose provenance and license are recorded in docs/assets/managers/logos.yaml. Inlined at the top of the manager’s page by meta_package_manager._docs; a manager leaving it unset keeps the page’s default package glyph.

Several managers legitimately share one slug, either because they wrap the same upstream (brew and cask) or because the tool has no mark of its own and its ecosystem’s stands in (apt under Debian’s swirl, cargo under Rust’s gear). Documentation-only, like homepage_url: no CLI output reads it.

platforms: frozenset[Platform] | Group | Platform | Iterable[Platform | Group] = frozenset({Platform(id='almalinux', name='AlmaLinux'), Platform(id='alpine', name='Alpine Linux'), Platform(id='altlinux', name='ALT Linux'), Platform(id='amzn', name='Amazon Linux'), Platform(id='android', name='Android'), Platform(id='arch', name='Arch Linux'), Platform(id='buildroot', name='Buildroot'), Platform(id='cachyos', name='CachyOS'), Platform(id='centos', name='CentOS'), Platform(id='chromeos', name='ChromeOS'), Platform(id='clearlinux', name='Clear Linux OS'), Platform(id='cloudlinux', name='CloudLinux OS'), Platform(id='crux', name='CRUX'), Platform(id='debian', name='Debian'), Platform(id='endeavouros', name='EndeavourOS'), Platform(id='exherbo', name='Exherbo Linux'), Platform(id='fedora', name='Fedora'), Platform(id='generic_linux', name='Generic Linux'), Platform(id='gentoo', name='Gentoo Linux'), Platform(id='guix', name='Guix System'), Platform(id='ibm_powerkvm', name='IBM PowerKVM'), Platform(id='kali', name='Kali Linux'), Platform(id='kvmibm', name='KVM for IBM z Systems'), Platform(id='linuxmint', name='Linux Mint'), Platform(id='macos', name='macOS'), Platform(id='mageia', name='Mageia'), Platform(id='mandriva', name='Mandriva Linux'), Platform(id='manjaro', name='Manjaro Linux'), Platform(id='nixos', name='NixOS'), Platform(id='nobara', name='Nobara'), Platform(id='nutyx', name='NuTyX'), Platform(id='opensuse', name='openSUSE'), Platform(id='openwrt', name='OpenWrt'), Platform(id='oracle', name='Oracle Linux'), Platform(id='parallels', name='Parallels'), Platform(id='pidora', name='Pidora'), Platform(id='pikaos', name='PikaOS'), Platform(id='raspbian', name='Raspbian'), Platform(id='rhel', name='RedHat Enterprise Linux'), Platform(id='rocky', name='Rocky Linux'), Platform(id='scientific', name='Scientific Linux'), Platform(id='slackware', name='Slackware'), Platform(id='sles', name='SUSE Linux Enterprise Server'), Platform(id='slitaz', name='SliTaz GNU/Linux'), Platform(id='solus', name='Solus'), Platform(id='sourcemage', name='Source Mage GNU/Linux'), Platform(id='tuxedo', name='Tuxedo OS'), Platform(id='ubuntu', name='Ubuntu'), Platform(id='ultramarine', name='Ultramarine'), Platform(id='void', name='Void Linux'), Platform(id='wsl1', name='Windows Subsystem for Linux v1'), Platform(id='wsl2', name='Windows Subsystem for Linux v2'), Platform(id='xenserver', name='XenServer')})

List of platforms supported by the manager.

Allows for a mishmash of platforms and groups of platforms. Will be normalized into a frozenset of Platform instances at instantiation.

requirement: str | None = '>=2.0.0'

The 2.x series is where list, purge and update settled as the subcommands this class drives, alongside the $ADOTDIR layout.

cli_names: tuple[str, ...] = ('zsh',)

Zsh is the binary mpm actually executes.

Antigen is a shell function defined by an antigen.zsh file that is sourced, never executed, so it cannot serve as the manager’s CLI: mpm requires an executable. Keying the manager on Zsh instead makes the version probe the presence check.

extra_env: ClassVar = {'NO_COLOR': '1', 'SHELL_SESSIONS_DISABLE': '1'}

SHELL_SESSIONS_DISABLE keeps macOS’ Zsh session bookkeeping from writing a session file on every query, as for Antidote.

version_cli_options: tuple[str, ...] = ('version',)

Antigen spells it as a subcommand: it defines an antigen-version function reached as antigen version, and recognizes no --version flag.

version_regexes: tuple[str, ...] = ('Antigen\\s+v?(?P<version>\\S+)',)

Antigen prints its release followed by the short commit it was built from.

The optional v absorbs the tag prefix its release builds carry. A copy taken from the development branch reports the literal string develop there instead of a version, which parses to nothing and correctly leaves the manager unavailable.

$ zsh -c 'source ~/antigen.zsh && antigen version'
Antigen v2.2.3 (0554db1)
Revision date: 2026-07-14 16:52:45 +0100

homepage_url: str | None = None

Home page of the project, only used in documentation for reference.

Left unset when the home page is the project’s repository, which repository_url names on its own, and when it is the project’s manual, which documentation_url names. Never inherited, like the other links.

id: str = 'antigen'

Package manager’s ID.

Derived by defaults from the lower-cased class name in which underscores _ are replaced by dashes -.

This ID must be unique among all package manager definitions and lower-case, as they’re used as feature flags for the mpm CLI.

virtual: bool = False

Should we expose the package manager to the user?

Virtual package manager are just skeleton classes used to factorize code among managers of the same family.

wikipedia_url: str | None = None

English Wikipedia article about the project, or None when it has none.

Listed last in the links of the manager’s documentation page. The article covers the project that home page names, or is a redirect Wikipedia keeps under the project’s name, landing on the part of a broader article that describes it: Cargo_(software) opens the Cargo section of the Rust article. An article that merely mentions the project does not count, nor does one about a related subject: lazy is a Neovim plugin manager, and the Neovim article is not about it.

Never inherited: the metaclass resets it to None on any class not declaring its own. A subclass often wraps a distinct project, like the six AUR helpers extending pacman, and would otherwise present pacman’s article as its own. Documentation-only, like homepage_url.

build_cli(*args, **kwargs)

Wrap all CLI invocations in the Zsh shell Antigen needs.

The version probe is guarded by a readability test that exits successfully when antigen.zsh is absent. Zsh is the default shell on macOS and near ubiquitous elsewhere, so an unguarded probe would turn every host that merely has Zsh into a manager reporting errors.

Note

The **kwargs accepted by the base class (auto_pre_args, sudo, etc.) are accepted but ignored because every invocation goes through the zsh -c wrapper and Antigen never requires elevated privileges.

Return type:

tuple[str, ...]

property installed: Iterator[Package]

Fetch installed packages.

--simple is the listing format that prints one bare bundle name per line. Antigen’s default --short format appends @ <revision> to each, but that revision is the tracked branch (literally master for any bundle not pinned to one), not a version, so the simple form is what mpm parses.

$ zsh -c 'source ~/antigen.zsh && antigen list --simple'
zsh-users/zsh-syntax-highlighting
zsh-users/zsh-completions
zsh-users/zsh-history-substring-search

upgrade_all_cli()

Generates the CLI to upgrade all packages.

$ antigen update

Return type:

tuple[str, ...]

remove(package_id)

Remove one package.

purge drops the bundle’s clone from the filesystem. It leaves the user’s .zshrc untouched, so a bundle still declared there is cloned again by the next shell: the removal is of the installed copy, not of the declaration.

$ antigen purge zsh-users/zsh-completions --force

Return type:

str