• gofmt/goimports on file save
• Auto-completion using go-autocomplete (with the auto-completion layer)
• Source analysis using go-guru
• Refactoring with godoctor
• Edit struct field tag with gomodifytags
• Linting with flycheck's built-in checkers or flycheck-gometalinter
• Coverage profile visualization

You will need gocode, godef and godoctor:

  go get -u -v github.com/nsf/gocode
  go get -u -v github.com/rogpeppe/godef
  go get -u -v golang.org/x/tools/cmd/guru
  go get -u -v golang.org/x/tools/cmd/gorename
  go get -u -v golang.org/x/tools/cmd/goimports

If you wish to use gometalinter set the value of go-use-gometalinter to t:

  (go :variables go-use-gometalinter t)

and install the tool:

  go get -u -v github.com/alecthomas/gometalinter
  gometalinter --install --update

For more information read gometalinter README.md and flycheck-gometalinter README.md

If you wish to use godoctor for refactoring, install it too:

  go get -u -v github.com/godoctor/godoctor
  go install github.com/godoctor/godoctor

If you want to use gomodifytags to edit field tags, install it too:

  go get -u -v github.com/fatih/gomodifytags

Make sure that the gocode executable is in your PATH. For information about setting up $PATH, check out the corresponding section in the FAQ (SPC h f $PATH RET).

For best results, make sure that the auto-completion and syntax-checking layers are enabled as well.

To use this configuration layer, add it to your ~/.spacemacs. You will need to add go to the existing dotspacemacs-configuration-layers list in this file.

By default, the tab width in Go mode is 8 spaces. To use a different value set the layer variable go-tab-width, e.g.

  (go :variables go-tab-width 4)

If you're using gocheck in your project you can use the go-use-gocheck-for-testing variable to enable suite testing and to get single function testing to work.

go-coverage-display-buffer-func controls how go-coverage should display the coverage buffer. See display-buffer for a list of possible functions. The default value is display-buffer-reuse-window.

Tests are run in a compilation buffer displayed in a popup window that can be closed by pressing C-g from any other window. The variable go-test-buffer-name can be customized to set the output buffer name.

To provide additional arguments to go test, specify go-use-test-args.

  (go :variables go-use-test-args "-race -timeout 10s"

Go Oracle has been deprecated as of October 1, 2016, it's replacement is go-guru.

If you would like to use the goguru bindings in your work, you will need to install it, and in your project you will need to set the scope with SPC m f o. The scope is a comma separated set of packages, and go's recursive operator is supported. In addition, you can prefix with - to exclude a package from searching.

In addition, GOPATH must be set prior to go-guru initialization.

gocode uses the output from installed binary files to provide its suggestions. You have a few options to ensure you always get up to date suggestions:

• Run go install ./... in your package directory when you make a file change.
• Run gocode set autobuild true to have gocode attempt to run go install ./... for you.
• You can configure your task runner to run go install ./... command on every file change.