feat: validate GitHub token

cli/cli_token.go

@@ -1,17 +1,31 @@
 package cli
 
 import (
+ "context"
  "encoding/json"
  "fmt"
  "io/ioutil"
  "os"
  "path/filepath"
 
+ "github.com/google/go-github/v33/github"
  "github.com/skmatz/vin"
+ "golang.org/x/oauth2"
 
  "github.com/AlecAivazis/survey/v2"
 )
 
+func validateToken(token string) bool {
+ ctx := context.Background()
+ sts := oauth2.StaticTokenSource(
+ &oauth2.Token{AccessToken: token},
+ )
+ gh := github.NewClient(oauth2.NewClient(ctx, sts))
+
+ _, _, err := gh.Octocat(context.Background(), "") // random API request
+ return err == nil
+}
+
 const tokenGenerateURL = "https://github.com/settings/tokens/new?description=Vin" //nolint:gosec
 
 // AskGitHubAccessToken prompts for the GitHub access token.
@@ -36,12 +50,14 @@ func (c *CLI) AskGitHubAccessToken() (string, error) {
  }
 
  fmt.Println(tokenGenerateURL)
- prompt := &survey.Input{
- Message: "Input your token:",
- Default: token,
- }
- if err := survey.AskOne(prompt, &token); err != nil {
- return "", err
+ for !validateToken(token) {
+ prompt := &survey.Input{
+ Message: "Input your token:",
+ Default: token,
+ }
+ if err := survey.AskOne(prompt, &token); err != nil {
+ return "", err
+ }
  }
  return token, nil
 }