meta_package_manager.managers.am module¶

class meta_package_manager.managers.am.AM[source]¶

Bases: PackageManager

AppImage manager, covering the applications of its own catalog.

Note

am and appman are the same script under two names, and only this one is wrapped. AppMan’s repository holds no implementation at all, just a stub that replaces itself with this script, which then reads its own path to decide whether to run system-wide or under the user’s home. Wrapping both would double-count: am -fi renders AppMan’s applications in a second table of its own whenever AppMan is configured, so they are already reported here. See Unsupported managers for the recorded decision.

Caution

The listing’s column count depends on its contents: a fifth column appears between the name and the version whenever an application resolves to a third-party catalog. The version is therefore located by reading the header rather than by counting from the left, which is also what lets a listing carrying two tables be parsed in one pass.

Note

No install. am refuses to be run under sudo and escalates on its own instead, priming the credential cache before it installs anything, so an install blocks on a password prompt that no flag of its own can answer. Removal is unaffected, -R needing no confirmation and no escalation mpm has to arrange.

No outdated either: nothing reports a remote version without installing it, and the catalog carries no versions at all. Its maintainer declined to publish a machine-readable feed, so this is settled rather than pending, and upgrade --all is unaffected.

No search: results are folded to the terminal width before they are printed, so a record wraps across lines with no marker to rejoin it, and its description is unrecoverable once wrapped.

Documentation: AM.

Initialize cli_errors list.

name: str = 'AppImage Manager'¶

Return package manager’s common name.

Default value is based on class name.

homepage_url: str | None = 'https://github.com/ivan-hc/AM'¶

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

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='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='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='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='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.

sudo: bool | None = False¶

User escalation policy: run this manager’s privileged commands with sudo.

None (the default) means the user expressed no preference, so the built-in default_sudo decides. True/False force escalation on or off for every operation this manager marks privileged (a build_cli(..., sudo=True) call). Set globally by mpm --sudo / mpm --no-sudo and per manager by the [mpm.managers.<id>] sudo config key, the latter winning (see meta_package_manager.pool.ManagerPool._select_managers()).

Only privileged operations on UNIX are ever escalated. A manager that escalates internally (internal_sudo) has no such markers and is never wrapped in sudo by mpm: its own sudo reuses the credential cache when prime_sudo() finds it already warm, and is otherwise covered by the silent-call notice in run().

default_sudo: bool = False¶

am refuses outright to run under sudo, exiting rather than proceeding, and arranges its own escalation per privileged step instead.

internal_sudo: bool = True¶

It calls the escalation binary itself for the steps that need it, picking sudo or doas from what the host provides.

requirement: str | None = '>=10.4'¶

The release that added the flag answering its confirmation prompts, which is what makes the mutating operations here unattended.

extra_env: ClassVar = {'NO_COLOR': '1'}¶

Additional environment variables to add to the current context.

Automatically applied on each meta_package_manager.execution.CLIExecutor.run_cli() calls.

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

CLI options used to produce the version of the package manager.

The raw output produced by the package manager CLI will be parsed with the version_regexes below to extract the version number.

cli_names: tuple[str, ...] = ('am',)¶

List of CLI names the package manager is known as.

This list of recognized CLI names is ordered by priority. That way we can influence the search of the right binary.

..hint::

This was helpful in the case of the Python transition from 2.x to 3.x, where multiple versions of the same executable were named python or python3.

By default, this property’s value is derived from the manager’s ID (see the MetaPackageManager.__init__ method above).

id: str = 'am'¶

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.

version_regexes: tuple[str, ...] = ('(?m)^(?P<version>\\d+(?:\\.\\d+)+)$',)¶

Search a line holding nothing but the version.

$ am --version
10.4

Anchored to a whole line because am prepends a multi-line warning banner on hosts that restrict user namespaces, which is the default on recent Ubuntu: a pattern matching the first number anywhere would read that banner instead.

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.

property installed: Iterator[Package]¶

Fetch installed packages.

-fi is the listing without the trailing table of unmanaged AppImages, and --byname fixes its order, which is otherwise by size.

$ am -fi --byname

 YOU HAVE INSTALLED 3 PROGRAMS MANAGED BY "AM"

 - APPNAME              | VERSION             | TYPE           | SIZE
 - -------              | -------             | ----           | ----
 â—† code                 | 1.107.1             | dynamic-binary | 450 MiB
 â—† krita                | 5.2.14              | appimage       | 322 MiB
 â—† zoom                 | 6.4.3.827.glibc2.27 | appimage*      | 288 MiB

Note

A version is genuinely optional here: an application whose updater reports none renders an empty cell, and one is yielded without a version rather than with a placeholder.

upgrade_all_cli()[source]¶

Generates the CLI to upgrade all packages.

--apps confines the run to the installed applications. The bare form additionally refreshes the catalogs and rewrites the am script itself, which is not what upgrading packages should mean.

$ am -y -u --apps
Return type:

tuple[str, ...]

upgrade_one_cli(package_id, version=None)[source]¶

Generates the CLI to upgrade the package provided as parameter.

Naming an application genuinely restricts the run to it.

$ am -y -u firefox
Return type:

tuple[str, ...]

remove(package_id)[source]¶

Removes a package.

-R is the unattended removal: unlike its lowercase counterpart it asks for no confirmation, so no flag is needed to answer one.

$ am -R firefox
Return type:

str

cleanup_cache()[source]¶

Removes things we don’t need anymore.

Clears the download caches, the caches applications leave in the home directory, and the launchers left behind by removals.

$ am -c
Return type:

None