meta_package_manager.managers.go module

class meta_package_manager.managers.go.Go

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.

Note

The inventory is go version -m, not go list. Pointed at a directory, go version walks it recursively and reports the build information Go embeds in every binary it produced, which over the binary directory is exactly the set go install created. go list answers for the module in the working directory instead, so it reports nothing about the host.

Caution

Go has no uninstall verb, in any scope: removing a command means deleting its file, which is not something a wrapper should do behind the tool’s back. Nothing reports staleness either. Both absences are why nao1215/gup exists as a separate tool.

Documentation: go install.

Initialize cli_errors list.

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.

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

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.

$ 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)

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