`meta_package_manager.managers.go` module¶

class meta_package_manager.managers.go.Go[source]¶

Bases: PackageManager

The Go toolchain, wrapped for the binaries go install puts on the machine.

A package here is a command, not a library: go install <path>@<version> compiles one and writes it into the toolchain’s binary directory, where it stays until the file is deleted. Libraries are a module’s own business and are scoped to the module that declares them, so they are outside what a system package manager can address.

Initialize cli_errors list.

operation_notes: ClassVar = {'outdated': 'Nothing reports staleness: [nao1215/gup](https://github.com/nao1215/gup) is the separate tool built to fill that gap.', 'remove': 'Go has no uninstall verb in any scope; removing a command means deleting its file.'}¶

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 = 'Go'¶

Return package manager’s common name.

Default value is based on class name.

homepage_url: str | None = 'https://go.dev'¶

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.

documentation_url: str | None = 'https://go.dev/ref/mod#go-install'¶

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/golang/go'¶

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.

wikipedia_url: str | None = 'https://en.wikipedia.org/wiki/Go_(programming_language)'¶

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.

platforms: frozenset[Platform] | Group | Platform | Iterable[Platform | Group] = frozenset({Platform(id='aix', name='IBM AIX'), 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='cygwin', name='Cygwin'), Platform(id='debian', name='Debian'), Platform(id='dragonfly_bsd', name='DragonFly BSD'), Platform(id='endeavouros', name='EndeavourOS'), Platform(id='exherbo', name='Exherbo Linux'), Platform(id='fedora', name='Fedora'), Platform(id='freebsd', name='FreeBSD'), Platform(id='generic_linux', name='Generic Linux'), Platform(id='gentoo', name='Gentoo Linux'), Platform(id='guix', name='Guix System'), Platform(id='haiku', name='Haiku'), Platform(id='hurd', name='GNU/Hurd'), Platform(id='ibm_powerkvm', name='IBM PowerKVM'), Platform(id='illumos', name='illumos'), 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='midnightbsd', name='MidnightBSD'), Platform(id='netbsd', name='NetBSD'), Platform(id='nixos', name='NixOS'), Platform(id='nobara', name='Nobara'), Platform(id='nutyx', name='NuTyX'), Platform(id='openbsd', name='OpenBSD'), Platform(id='opensuse', name='openSUSE'), Platform(id='openwrt', name='OpenWrt'), Platform(id='oracle', name='Oracle Linux'), Platform(id='os400', name='IBM i'), 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='solaris', name='Solaris'), Platform(id='solus', name='Solus'), Platform(id='sourcemage', name='Source Mage GNU/Linux'), Platform(id='sunos', name='SunOS'), Platform(id='tuxedo', name='Tuxedo OS'), Platform(id='ubuntu', name='Ubuntu'), Platform(id='ultramarine', name='Ultramarine'), Platform(id='void', name='Void Linux'), Platform(id='windows', name='Windows'), 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 = '>=1.16.0'¶

go install only accepts a version suffix from Go 1.16.

Before it, the command built whatever the current directory’s module resolved to, so a machine-wide install was not expressible. The release notes introduce the change as: “go install now accepts arguments with version suffixes (for example, go install example.com/cmd@v1.0.0). This causes go install to build and install packages in module-aware mode, ignoring the go.mod file in the current directory or any parent directory, if there is one.”

cli_names: tuple[str, ...] = ('go',)¶

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).

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

$ go version
go version go1.27.0 darwin/arm64

property installed: Iterator[Package]¶

Fetch installed packages.

Each binary produces a multi-line record: a header naming the file, a path line carrying the import path install accepts, a mod line carrying the module that provided it with its version, then build settings and one dep line per transitive dependency.

The id comes from path and the version from mod, which is why this cannot be one regex per line. The two agree whenever a module’s main package sits at its root, as both samples below do, but a command installed from a subdirectory has a path ending in that subdirectory while mod stops at the module. dep lines are the dependency tree of the command rather than commands themselves, and are skipped.

$ go version -m /tmp/mpm-drive/go/bin
/tmp/mpm-drive/go/bin/gup: go1.27.0
        path    github.com/nao1215/gup
        mod     github.com/nao1215/gup  v1.8.1  h1:An1c11EdZ36h40GDhtbx5NSRwbKvaEbjwOODwkBDjw4=
        dep     github.com/adrg/xdg     v0.5.3  h1:xRnxJXne7+oWDatRhR1JLnvuccuIeCoBu2rtuLqQB78=
        dep     github.com/cpuguy83/go-md2man/v2        v2.0.6  h1:XJtiaUW6dEEqVuZiMTn1ldk455QWwEIsMIJlo5vtkx0=
        dep     github.com/fatih/color  v1.19.0 h1:Zp3PiM21/9Ld6FzSKyL5c/BULoe/ONr9KlbYVOfG8+w=
        dep     github.com/gen2brain/beeep      v0.11.2 h1:+KfiKQBbQCuhfJFPANZuJ+oxsSKAYNe88hIpJuyKWDA=
        dep     github.com/hashicorp/go-version v1.9.0  h1:CeOIz6k+LoN3qX9Z0tyQrPtiB1DFYRPfCIBtaXPSCnA=
        dep     github.com/jackmordaunt/icns/v3 v3.0.1  h1:xxot6aNuGrU+lNgxz5I5H0qSeCjNKp8uTXB1j8D4S3o=
        dep     github.com/mattn/go-colorable   v0.1.15 h1:+u9SLTRGnXv73cEsnsmoZBom+dMU88B2M0aDcWy0/jY=
        dep     github.com/mattn/go-isatty      v0.0.20 h1:xfD0iDuEKnDkl03q4limB+vH+GxLEtL/jb4xVJSWWEY=
        dep     github.com/nfnt/resize  v0.0.0-20180221191011-83c6a9932646      h1:zYyBkD/k9seD2A7fsi6Oo2LfFZAehjjQMERAvZLEDnQ=
        dep     github.com/russross/blackfriday/v2      v2.1.0  h1:JIOH55/0cWyOuilr9/qlrm0BSXldqnqwMsf35Ld67mk=
        dep     github.com/spf13/cobra  v1.10.2 h1:DMTTonx5m65Ic0GOoRY2c16WCbHxOOw6xxezuLaBpcU=
        dep     github.com/spf13/pflag  v1.0.9  h1:9exaQaMOCwffKiiiYk6/BndUBv+iRViNW+4lEMi0PvY=
        dep     go.yaml.in/yaml/v3      v3.0.4  h1:tfq32ie2Jv2UxXFdLJdh3jXuOzWiL1fo0bu/FbuKpbc=
        dep     golang.org/x/sys        v0.42.0 h1:omrd2nAlyT5ESRdCLYdm3+fMfNFE/+Rf4bDIQImRJeo=
        build   -buildmode=exe
        build   -compiler=gc
        build   DefaultGODEBUG=cryptocustomrand=1,tlssecpmlkem=0,tracebacklabels=0,urlstrictcolons=0,x509sslcertoverrideplatform=0
        build   CGO_ENABLED=1
        build   CGO_CFLAGS=
        build   CGO_CPPFLAGS=
        build   CGO_CXXFLAGS=
        build   CGO_LDFLAGS=
        build   GOARCH=arm64
        build   GOOS=darwin
        build   GOARM64=v8.0
/tmp/mpm-drive/go/bin/hello: go1.27.0
        path    golang.org/x/example/hello
        mod     golang.org/x/example/hello      v0.0.0-20250915201037-7f05d217867b      h1:+gZE2jOdiscYByu0606Uw8Ldir2Cecd39Vq/3IEasRA=
        build   -buildmode=exe
        build   -compiler=gc
        build   DefaultGODEBUG=containermaxprocs=0,cryptocustomrand=1,decoratemappings=0,gotestjsonbuildtext=1,httpcookiemaxnum=0,httplaxcontentlength=1,httpmuxgo121=1,httpservecontentkeepheaders=1,multipathtcp=0,panicnil=1,randseednop=0,rsa1024min=0,tlsmlkem=0,tlssecpmlkem=0,tlssha1=1,tracebacklabels=0,updatemaxprocs=0,urlmaxqueryparams=0,urlstrictcolons=0,winreadlinkvolume=0,winsymlink=0,x509negativeserial=1,x509rsacrt=0,x509sha256skid=0,x509sslcertoverrideplatform=0,x509usepolicies=0
        build   CGO_ENABLED=1
        build   CGO_CFLAGS=
        build   CGO_CPPFLAGS=
        build   CGO_CXXFLAGS=
        build   CGO_LDFLAGS=
        build   GOARCH=arm64
        build   GOOS=darwin
        build   GOARM64=v8.0

property bin_dir: str[source]¶

Locate the directory go install writes commands into.

GOBIN wins when it is set, and is empty on a stock installation, where the destination is the bin subdirectory of the first GOPATH entry instead.

Rendered with forward slashes regardless of host: go accepts them on every platform it targets, and it keeps this value byte-identical to the documented command below on Windows, where str(Path(...)) would otherwise render the joined path with backslashes.

$ go env GOBIN

$ go env GOPATH
/tmp/mpm-drive/go

id: str = 'go'¶

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.

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

Install one package.

The version suffix is mandatory outside a module, so an unpinned install asks for @latest explicitly rather than omitting it.

$ go install golang.org/x/example/hello@latest

Return type:: str

meta_package_manager.managers.go module¶

`meta_package_manager.managers.go` module¶