英文:
What do I need to do to execute sample golang code having a 'named' import like below?
问题
这是一个新手问题。依赖项似乎在GitHub上，从导入语句中很明显，那为什么运行不起来呢？
错误信息是：没有提供所需的模块来提供 github.com/hashicorp/go-getter 包
package main
import (
"context"
"fmt"
"os"
// 下面这行代码有问题，出现错误：没有提供所需的模块
getter "github.com/hashicorp/go-getter"
)
func main() {
client := &getter.Client{
Ctx: context.Background(),
// 定义目标目录，如果目录不存在则创建
Dst: "/tmp/gogetter",
Dir: true,
// 要克隆的仓库及其子目录
Src: "github.com/hashicorp/terraform/examples/cross-provider",
Mode: getter.ClientModeDir,
// 定义要使用的检测器类型，这里只需要 GitHub
Detectors: []getter.Detector{
&getter.GitHubDetector{},
},
// 提供下载文件所需的 getter
Getters: map[string]getter.Getter{
"git": &getter.GitGetter{},
},
}
// 下载文件
if err := client.Get(); err != nil {
fmt.Fprintf(os.Stderr, "获取路径 %s 时出错：%v", client.Src, err)
os.Exit(1)
}
// 现在你可以检查临时目录中的文件是否存在
}
英文:
This is newbie question. The dependencies seems to be on github, and it's pretty obvious from the import, so why run doesn't work?
Error is: no required module provides package github.com/hashicorp/go-getter
package main
import (
"context"
"fmt"
"os"
// Problem with line below, getting error: no required module provides package
getter "github.com/hashicorp/go-getter"
)
func main() {
client := &getter.Client{
Ctx: context.Background(),
//define the destination to where the directory will be stored. This will create the directory if it doesnt exist
Dst: "/tmp/gogetter",
Dir: true,
//the repository with a subdirectory I would like to clone only
Src: "github.com/hashicorp/terraform/examples/cross-provider",
Mode: getter.ClientModeDir,
//define the type of detectors go getter should use, in this case only github is needed
Detectors: []getter.Detector{
&getter.GitHubDetector{},
},
//provide the getter needed to download the files
Getters: map[string]getter.Getter{
"git": &getter.GitGetter{},
},
}
//download the files
if err := client.Get(); err != nil {
fmt.Fprintf(os.Stderr, "Error getting path %s: %v", client.Src, err)
os.Exit(1)
}
//now you should check your temp directory for the files to see if they exist
}
答案1
得分: 1
在某个地方创建一个名为getter的文件夹，然后创建一个名为getter/getter.go的文件：
package main
import (
"fmt"
"github.com/hashicorp/go-getter/v2"
)
func main() {
fmt.Println(getter.ErrUnauthorized)
}
注意，我没有像你指定的那样使用一个名字，因为在这种情况下是多余的。包已经叫做getter[1]，所以你不需要指定相同的名字。然后运行：
go mod init getter
go mod tidy
go build
英文:
Create a folder somewhere called getter, then create a file
getter/getter.go:
package main
import (
"fmt"
"github.com/hashicorp/go-getter/v2"
)
func main() {
fmt.Println(getter.ErrUnauthorized)
}
Notice I didn't use a name like you specified, as it's redundant in this case. The package is already called getter [1], so you don't need to specify the same name. Then, run:
go mod init getter
go mod tidy
go build
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