How can I "go run" a project with multiple files in the main package?

Question

I currently have a single file in my main package called main.go. How do I split the contents of main.go into multiple files without creating a separate package because the code isn't reusable.

I want a directory structure like this:

$ ls foo

main.go
bar.go

bar.go

package main

import "fmt"

func Bar() {
    fmt.Println("Bar")
}

Then in main.go

package main

func main() {
    Bar()
}

But go run main.go gives me:

# command-line-arguments
./main.go:4:2: undefined: Bar

Answer 1

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