Import removed when package name doesn't match directory name

[sman591]

Thanks for putting together this utility!

I believe I found a bug with how gosimports removes unused imports. If the package name doesn't match the name of the directory a package is imported from, gosimports will mistakenly think it is unused and remove it.

Example:

File being imported:

// project/foo/test.go
package foobar  // NOTE: package name is "foobar", but directory is "foo"

func Test() { ... }

Source file:

package server

import (
	"fmt"

	"github.com/mycompany/repo/foo/foo"
)

func main() {
	fmt.Printf("Hello world")
	foobar.Test()
}

gosimports will incorrectly remove this import:

package server

import (
	"fmt"
)

func main() {
	fmt.Printf("Hello world")
	foobar.Test()
}

However, if I manually name the import, gosimports will keep the import as desired.

package server

import (
	"fmt"

	foobar "github.com/mycompany/project/foo/foo"
)

func main() {
	fmt.Printf("Hello world")
	foobar.Test()
}