A short blog post on how I’ve setup my development environment so I can develop on Go.
I’ve limited myself to FreeBSD (amd64) and Vim. However most of this setup should also work on other Unix environments and editors (e.g Emacs).
First step: install Go specific vim plugins. The Go source code ships with vim plugins which can be found in $GOROOT/misc/vim. The readme.txt explains the different options to install the plugins. You can soft link to this directory or copy everything straight into your ~/.vim/ directory. These plugins enable syntax highlighting, indentation and documentation lookup.
The second step is to enable you to jump around the code and go to definitions of specific functions. To enable this I use the (rather) well known ctags tools. A version of ctags which support Go can be found here: https://github.com/lyosha/ctags-go.git
Installations is simple, make install (watch out this overwrites previously installed ctags in /usr/local/bin). After this do a `ctags –recurse –sort=yes` at the top of your source tree, this will generater a tags file which can will be used by vim to lookup locations of code definitions. (C-[ : jump to definition, C-t : jump back)
The third step (last) is code completions. This can be done with a plugin called Omni Complete in combination with the Go autocompletion daemon. If your Go environment variables are setup correctly, the following command should do the trick: go get -u github.com/nsf/gocode. The daemon works in combination with the Go vim plugins. In Vim C-x C-o will open the menu with context sensitive suggestions.