dl/dl.go

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package dl
import (
"context"
"encoding/json"
"net/http"
)
var dlURL = "https://golang.org/dl/?mode=json"
// Version is a Go version
type Version struct {
Version string `json:"version"`
Stable bool `json:"stable"`
Files []File `json:"files"`
}
// File is a dl file
type File struct {
Filename string `json:"filename"`
OS string `json:"os"`
Arch string `json:"arch"`
Version string `json:"version"`
Sha256 string `json:"sha256"`
Size int `json:"size"`
Kind string `json:"kind"`
}
// Versions gets the latest Version(s) from dl
func Versions(ctx context.Context) ([]Version, error) {
req, err := http.NewRequestWithContext(ctx, http.MethodGet, dlURL, nil)
if err != nil {
return nil, err
}
req.Header.Set("User-Agent", "git.jojodev.com/golang/dl")
res, err := http.DefaultClient.Do(req)
if err != nil {
return nil, err
}
defer res.Body.Close()
var versions []Version
if err := json.NewDecoder(res.Body).Decode(&versions); err != nil {
return nil, err
}
return versions, nil
}