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package github
import (
"bytes"
"encoding/json"
"fmt"
"io"
"net/http"
"os"
"path/filepath"
"strings"
)
// Client handles GitHub API operations
type Client struct {
token string
org string
}
// NewClient creates a new GitHub API client
func NewClient(token, org string) *Client {
// If no token provided, try other sources
if token == "" {
fmt.Println(" No token in config, trying environment variable...")
// Try environment variable
token = os.Getenv("GITHUB_TOKEN")
// If still no token, try reading from file
if token == "" {
fmt.Println(" No GITHUB_TOKEN env var, trying ~/.gitsyncer_github_token file...")
home, err := os.UserHomeDir()
if err == nil {
tokenFile := filepath.Join(home, ".gitsyncer_github_token")
data, err := os.ReadFile(tokenFile)
if err == nil {
token = strings.TrimSpace(string(data))
fmt.Printf(" Loaded token from file (length: %d)\n", len(token))
// Check for common issues
if strings.Contains(token, "\n") || strings.Contains(token, "\r") {
fmt.Println(" Warning: Token contains newline characters")
}
if strings.HasPrefix(token, " ") || strings.HasSuffix(token, " ") {
fmt.Println(" Warning: Token has leading/trailing spaces")
}
} else {
fmt.Printf(" Could not read token file: %v\n", err)
}
}
} else {
fmt.Printf(" Loaded token from env var (length: %d)\n", len(token))
}
} else {
fmt.Printf(" Using token from config (length: %d)\n", len(token))
}
return &Client{
token: token,
org: org,
}
}
// CreateRepoRequest represents the request to create a repository
type CreateRepoRequest struct {
Name string `json:"name"`
Description string `json:"description"`
Private bool `json:"private"`
AutoInit bool `json:"auto_init"`
}
// CreateRepoResponse represents the response from creating a repository
type CreateRepoResponse struct {
ID int64 `json:"id"`
Name string `json:"name"`
FullName string `json:"full_name"`
Private bool `json:"private"`
SSHURL string `json:"ssh_url"`
CloneURL string `json:"clone_url"`
}
// ErrorResponse represents an error response from GitHub API
type ErrorResponse struct {
Message string `json:"message"`
Errors []struct {
Resource string `json:"resource"`
Field string `json:"field"`
Code string `json:"code"`
} `json:"errors,omitempty"`
}
// RepoExists checks if a repository exists
func (c *Client) RepoExists(repoName string) (bool, error) {
if c.token == "" {
return false, fmt.Errorf("GitHub token required")
}
url := fmt.Sprintf("https://api.github.com/repos/%s/%s", c.org, repoName)
fmt.Printf(" Checking URL: %s\n", url)
fmt.Printf(" Token present: %v (length: %d)\n", c.token != "", len(c.token))
req, err := http.NewRequest("GET", url, nil)
if err != nil {
return false, err
}
req.Header.Set("Authorization", "Bearer "+c.token)
req.Header.Set("Accept", "application/vnd.github.v3+json")
resp, err := http.DefaultClient.Do(req)
if err != nil {
return false, err
}
defer resp.Body.Close()
if resp.StatusCode == 200 {
return true, nil
} else if resp.StatusCode == 404 {
return false, nil
} else if resp.StatusCode == 401 {
// Read the response body for 401 errors
body, _ := io.ReadAll(resp.Body)
fmt.Printf(" 401 Unauthorized - Response: %s\n", string(body))
fmt.Printf(" Authorization header: %s\n", req.Header.Get("Authorization"))
return false, fmt.Errorf("authentication failed (401): %s", string(body))
}
return false, fmt.Errorf("unexpected status code: %d", resp.StatusCode)
}
// CreateRepo creates a new repository
func (c *Client) CreateRepo(repoName, description string, private bool) error {
if c.token == "" {
return fmt.Errorf("GitHub token required to create repository")
}
fmt.Printf(" Checking if GitHub repo %s/%s exists...\n", c.org, repoName)
// First check if it already exists
exists, err := c.RepoExists(repoName)
if err != nil {
return fmt.Errorf("failed to check if repo exists: %w", err)
}
if exists {
fmt.Printf(" GitHub repo already exists, skipping creation\n")
// Repo already exists, nothing to do
return nil
}
url := fmt.Sprintf("https://api.github.com/user/repos")
reqBody := CreateRepoRequest{
Name: repoName,
Description: description,
Private: private,
AutoInit: false, // Don't auto-init, we'll push content
}
jsonBody, err := json.Marshal(reqBody)
if err != nil {
return err
}
req, err := http.NewRequest("POST", url, bytes.NewBuffer(jsonBody))
if err != nil {
return err
}
req.Header.Set("Authorization", "Bearer "+c.token)
req.Header.Set("Accept", "application/vnd.github.v3+json")
req.Header.Set("Content-Type", "application/json")
resp, err := http.DefaultClient.Do(req)
if err != nil {
return err
}
defer resp.Body.Close()
if resp.StatusCode == 201 {
var createResp CreateRepoResponse
if err := json.NewDecoder(resp.Body).Decode(&createResp); err != nil {
return fmt.Errorf("failed to parse response: %w", err)
}
fmt.Printf("Created GitHub repository: %s\n", createResp.FullName)
return nil
}
// Handle error response
var errResp ErrorResponse
if err := json.NewDecoder(resp.Body).Decode(&errResp); err != nil {
return fmt.Errorf("unexpected status code: %d", resp.StatusCode)
}
if errResp.Message != "" {
return fmt.Errorf("GitHub API error: %s", errResp.Message)
}
return fmt.Errorf("failed to create repository: status %d", resp.StatusCode)
}
// HasToken returns whether a token is configured
func (c *Client) HasToken() bool {
return c.token != ""
}
|
