Go tools

gofmt

With gofmt, you can format Go source code in the opened file or in the whole Go project.

For a single file, you can use the built-in import management and code formatter. Imports are managed on-the-fly. To customize import management, open settings by pressing Ctrl+Alt+S and navigate to Go | Imports.

To reformat code, press Ctrl+Alt+L. Comparing to gofmt, GoLand’s formatter works with syntactically incorrect code and can be invoked on an arbitrary block. There are other features such as automatically inserting semicolons, wrapping parameters and arguments, and others.

Also, you can use On code reformat option (Editor | Code Style | Go, click Other tab). This option lets you invoke both formatters by pressing Ctrl+Alt+L whenever you want.

Alternatively, use the Reformat code option in Actions on Save. This action is enabled by default for GoLand. When triggered by pressing Ctrl+S, the IDE runs the built-in GoLand formatter and gofmt.

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For more information about gofmt, see Command gofmt.

goimports

With goimports, you can automatically update your Go import lines (add missing and remove unreferenced imports).

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The goimports tool also formats your code in the same style as gofmt. For more information about goimports, see Command goimports.

go generate

The go generate uses the //go:generate directive to define and invoke the code generation. For more information about go generate, see Generating code at blog.golang.org.

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For more information about go generate, see Generate Go files by processing source and Generating code.

go vet

The go vet command examines Go source code and reports suspicious constructs.

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For more information about go vet, refer to Command vet.