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/
utils.go
100 lines (79 loc) · 1.59 KB
/
utils.go
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package utils
import (
"fmt"
"net/url"
"os"
"github.com/google/go-github/github"
"golang.org/x/oauth2"
)
const (
// The default GitHub API url
Api = "https://api.github.com/"
apiEnv = "GITHUB_API"
tokenEnv = "GITHUB_TOKEN"
)
var (
// Deliberately uninitialized, see GetVersion().
version string
)
func GetClient(endpoint string, token string) (*github.Client, error) {
endpoint = getEndpoint(endpoint)
token, err := getToken(token)
if err != nil {
return nil, err
}
ts := oauth2.StaticTokenSource(
&oauth2.Token{
AccessToken: token,
},
)
tc := oauth2.NewClient(oauth2.NoContext, ts)
client := github.NewClient(tc)
err = setEndpoint(client, endpoint)
if err != nil {
return nil, err
}
return client, nil
}
func getToken(t string) (string, error) {
// If token is set, use that.
if t != "" {
return t, nil
}
// If token is set as an environment variable, use that.
t = os.Getenv(tokenEnv)
if t != "" {
return t, nil
}
// Otherwise return an error.
return "", fmt.Errorf("missing environment variable %s", tokenEnv)
}
func getEndpoint(e string) string {
// If endpoint is different from the default, use that.
if e != Api {
return e
}
// If endpoint is set as an environment variable, use that.
e = os.Getenv(apiEnv)
if e != "" {
return e
}
// Otherwise use the default endpoint.
return Api
}
func setEndpoint(c *github.Client, e string) error {
if e != Api {
ep, err := url.Parse(e)
if err != nil {
return err
}
c.BaseURL = ep
}
return nil
}
func GetVersion() string {
if version != "" {
return version
}
return "unknown"
}