访问go模块中的本地包(go 1.11)
I'm trying out Go's new modules system and am having trouble accessing local packages. The following project is in a folder on my desktop outside my gopath.
My project structure looks like:
/
- /platform
- platform.go
- main.go
- go.mod
// platform.go
package platform
import "fmt"
func Print() {
fmt.Println("Hi")
}
// main.go
package main
import "platform"
func main() {
platform.Print()
}
go build main.go
tells me
cannot find module for path platform
我正在尝试Go的新模块系统,并且无法访问本地软件包。 以下项目位于我的gopath外的桌面上的文件夹中。 p>
我的项目结构如下: p>
/
-/ platform
-platform.go
-main.go
-go.mod
code> pre>
//平台。 go
打包平台
导入“ fmt”
func Print(){
fmt.Println(“ Hi”)
}
code> pre>
\ n
// main.go
package main
导入“平台”
func main(){
platform.Print()
}
code> pre>
去构建main.go code>告诉我 p>
找不到用于路径平台的模块
code>
div>
I would strongly suggest you to use go toolchain which takes care of these issues out of the box. Visual Studio Code with vscode-go plugin is really useful.
Problem here is that Go requires relative paths with respect to your $GOPATH/src
or module
in import statement. Depending on where you are in your GOPATH
, import path should include that as well. In this case, import statement must include go module path in go.mod
GOPATH
Assume your project resides here:
$GOPATH/src/github.com/myuser/myproject
Your import path should be:
import "github.com/myuser/myproject/platform"
VGO
Assume your go.mod file is:
module example.com/myuser/myproject
Your import path should be:
import "example.com/myuser/myproject/platform"
Let me define this first modules
are collections of packages
. In Go 11, I use go modules like the following:
If both packages are in the same project, you could just do the following:
In go.mod
:
module github.com/userName/moduleName
and inside your main.go
import "github.com/userName/moduleName/platform"
However, if they are separate modules, i.e different physical paths and you still want to import local packages
without publishing this remotely to github for example, you could achieve this by using replace
directive.
Given the module name github.com/otherModule
and platform
, as you've called it, is the only package inside there. In your main module's go.mod
add the following lines:
module github.com/userName/mainModule
require "github.com/userName/otherModule" v0.0.0
replace "github.com/userName/otherModule" v0.0.0 => "local physical path to the otherModule"
Note: The path should point to the root directory of the module, and can be absolute or relative.
Inside main.go
, to import a specific package like platform
from otherModule
:
import "github.com/userName/otherModule/platform"
Here's a gentle introduction to Golang Modules