vim-go deleting unused code when write to disk

I have imported several packages into a file in a Go package (package commands) I am writing (following along with a golang tutorial) using Vim with the Vim-Go plugin. Several of these packages are not yet used in the package. When I save the file :w, Vim seems to be deleting the unused packages, which is really annoying because those unused packages are going to be used. I just haven't added the necessary code for them. Is there a way to turn off this functionality in Vim-Go or do I have to delete the whole plugin to get rid of this annoying behavior?

Before Write

package commands
import (
	"fmt"
	"os"
	"time"

	rss "github.com/jteeuwen/go-pkg-rss"
	"github.com/spf13/cobra"
	"github.com/spf13/viper"
)

After Save

import (
	"github.com/spf13/cobra"
	"github.com/spf13/viper"
)

This is because you're using goimports as the tool to use when formatting your go code (I think vim-go does this by default - and it formats code on save by default). goimports removes unused imports for you .. thats why its so great. You will learn to love it at some point

For now, what you want to use is gofmt to format your code, which doesn't touch imports - it only formats the code. You can put this in your .vimrc:

let g:go_fmt_command = "gofmt"

If you decide you want to manually run goimports on your file after you've done the above .. you can run :GoImports.

You can also choose another option if you prefer: you can turn off formatting on save by putting this into your .vimrc:

let g:go_fmt_autosave = 0

Then, you can still use goimports when formatting your code .. but it won't do it automatically on save.