Minimal Go config for Emacs

go.el

;; Go
;; Requires: go get github.com/rogpeppe/godef
;;           go get github.com/nsf/gocode
(defun jim-go-mode ()
  ;; gofmt on save.
  (add-hook 'before-save-hook 'gofmt-before-save)
  ;; Add flymake support for go.
  (require 'flymake-go)
  (flymake-mode)
  ;; Auto-complete support
  (auto-complete-mode 1)
  ;; Compile support
  (if (not (string-match "go build" compile-command))
      (set (make-local-variable 'compile-command)
           "go build -v && go test -v && go vet"))
  ;; 8-wide tabs are too wide.
  (setq tab-width 2))
(add-hook 'go-mode-hook 'jim-go-mode)
(with-eval-after-load 'go-mode
  (require 'go-autocomplete))