114 lines
3 KiB
Go
114 lines
3 KiB
Go
package github
|
|
|
|
import (
|
|
"context"
|
|
"encoding/json"
|
|
"fmt"
|
|
"net/http"
|
|
"os"
|
|
"strings"
|
|
|
|
"golang.org/x/oauth2"
|
|
)
|
|
|
|
// Repo is a minimal representation of a GitHub repository used in this package.
|
|
type Repo struct {
|
|
CloneURL string `json:"clone_url"`
|
|
}
|
|
|
|
// GetPublicRepos returns clone URLs for all public repositories owned by the given user or org.
|
|
// It uses the public GitHub API endpoint.
|
|
func GetPublicRepos(ctx context.Context, userOrOrg string) ([]string, error) {
|
|
return GetPublicReposWithAPIURL(ctx, "https://api.github.com", userOrOrg)
|
|
}
|
|
|
|
// newAuthenticatedClient returns an HTTP client authenticated with a GitHub token if present.
|
|
// If the GITHUB_TOKEN environment variable is not set, it returns http.DefaultClient.
|
|
func newAuthenticatedClient(ctx context.Context) *http.Client {
|
|
token := os.Getenv("GITHUB_TOKEN")
|
|
if token == "" {
|
|
return http.DefaultClient
|
|
}
|
|
ts := oauth2.StaticTokenSource(
|
|
&oauth2.Token{AccessToken: token},
|
|
)
|
|
return oauth2.NewClient(ctx, ts)
|
|
}
|
|
|
|
// GetPublicReposWithAPIURL returns clone URLs for all public repositories for userOrOrg
|
|
// using the specified GitHub API base URL. It transparently follows pagination.
|
|
func GetPublicReposWithAPIURL(ctx context.Context, apiURL, userOrOrg string) ([]string, error) {
|
|
client := newAuthenticatedClient(ctx)
|
|
var allCloneURLs []string
|
|
url := fmt.Sprintf("%s/users/%s/repos", apiURL, userOrOrg)
|
|
|
|
for {
|
|
if err := ctx.Err(); err != nil {
|
|
return nil, err
|
|
}
|
|
req, err := http.NewRequestWithContext(ctx, "GET", url, nil)
|
|
if err != nil {
|
|
return nil, err
|
|
}
|
|
req.Header.Set("User-Agent", "Borg-Data-Collector")
|
|
resp, err := client.Do(req)
|
|
if err != nil {
|
|
return nil, err
|
|
}
|
|
|
|
if resp.StatusCode != http.StatusOK {
|
|
resp.Body.Close()
|
|
// Try organization endpoint
|
|
url = fmt.Sprintf("%s/orgs/%s/repos", apiURL, userOrOrg)
|
|
req, err = http.NewRequestWithContext(ctx, "GET", url, nil)
|
|
if err != nil {
|
|
return nil, err
|
|
}
|
|
req.Header.Set("User-Agent", "Borg-Data-Collector")
|
|
resp, err = client.Do(req)
|
|
if err != nil {
|
|
return nil, err
|
|
}
|
|
}
|
|
|
|
if resp.StatusCode != http.StatusOK {
|
|
resp.Body.Close()
|
|
return nil, fmt.Errorf("failed to fetch repos: %s", resp.Status)
|
|
}
|
|
|
|
var repos []Repo
|
|
if err := json.NewDecoder(resp.Body).Decode(&repos); err != nil {
|
|
resp.Body.Close()
|
|
return nil, err
|
|
}
|
|
resp.Body.Close()
|
|
|
|
for _, repo := range repos {
|
|
allCloneURLs = append(allCloneURLs, repo.CloneURL)
|
|
}
|
|
|
|
linkHeader := resp.Header.Get("Link")
|
|
if linkHeader == "" {
|
|
break
|
|
}
|
|
nextURL := findNextURL(linkHeader)
|
|
if nextURL == "" {
|
|
break
|
|
}
|
|
url = nextURL
|
|
}
|
|
|
|
return allCloneURLs, nil
|
|
}
|
|
|
|
// findNextURL parses the RFC 5988 Link header and returns the URL with rel="next", if any.
|
|
func findNextURL(linkHeader string) string {
|
|
links := strings.Split(linkHeader, ",")
|
|
for _, link := range links {
|
|
parts := strings.Split(link, ";")
|
|
if len(parts) == 2 && strings.TrimSpace(parts[1]) == `rel="next"` {
|
|
return strings.Trim(strings.TrimSpace(parts[0]), "<>")
|
|
}
|
|
}
|
|
return ""
|
|
}
|