go help get

go help get

usage: go get [-t] [-u] [-v] [build flags] [packages]

Get resolves its command-line arguments to packages at specific module versions,
updates go.mod to require those versions, and downloads source code into the
module cache.

To add a dependency for a package or upgrade it to its latest version:

	go get example.com/pkg

To upgrade or downgrade a package to a specific version:

	go get example.com/[email protected]

To remove a dependency on a module and downgrade modules that require it:

	go get example.com/mod@none

See https://golang.org/ref/mod#go-get for details.

In earlier versions of Go, 'go get' was used to build and install packages.
Now, 'go get' is dedicated to adjusting dependencies in go.mod. 'go install'
may be used to build and install commands instead. When a version is specified,
'go install' runs in module-aware mode and ignores the go.mod file in the
current directory. For example:

	go install example.com/[email protected]
	go install example.com/pkg@latest

See 'go help install' or https://golang.org/ref/mod#go-install for details.

'go get' accepts the following flags.

The -t flag instructs get to consider modules needed to build tests of
packages specified on the command line.

The -u flag instructs get to update modules providing dependencies
of packages named on the command line to use newer minor or patch
releases when available.

The -u=patch flag (not -u patch) also instructs get to update dependencies,
but changes the default to select patch releases.

When the -t and -u flags are used together, get will update
test dependencies as well.

The -x flag prints commands as they are executed. This is useful for
debugging version control commands when a module is downloaded directly
from a repository.

For more about modules, see https://golang.org/ref/mod.

For more about specifying packages, see 'go help packages'.

This text describes the behavior of get using modules to manage source
code and dependencies. If instead the go command is running in GOPATH
mode, the details of get's flags and effects change, as does 'go help get'.
See 'go help gopath-get'.

See also: go build, go install, go clean, go mod.

Related

go help install

See also

• Go, Gorutine: go [ mod | list | fmt, for | build | get | version | env | install | test ] go help, Go template, Echo go web framework, Go packages, Blank identifier