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package ghclient
import (
"bytes"
"context"
"encoding/json"
"fmt"
"net/http"
"time"
)
// Client is a minimal GitHub API client covering only the Releases endpoint.
type Client struct {
token string
repo string // "owner/repo"
httpClient *http.Client
}
// New creates a Client. repo must be in "owner/repo" format.
func New(token, repo string) *Client {
return &Client{
token: token,
repo: repo,
httpClient: &http.Client{
Timeout: 30 * time.Second,
},
}
}
type createReleaseRequest struct {
TagName string `json:"tag_name"`
Name string `json:"name"`
Body string `json:"body"`
}
// CreateRelease creates a GitHub release on an existing tag.
// The tag must already be pushed to the remote before calling this.
func (c *Client) CreateRelease(ctx context.Context, tagName, body string) error {
payload, _ := json.Marshal(createReleaseRequest{
TagName: tagName,
Name: tagName,
Body: body,
})
url := fmt.Sprintf("https://api.github.com/repos/%s/releases", c.repo)
req, err := http.NewRequestWithContext(ctx, http.MethodPost, url, bytes.NewReader(payload))
if err != nil {
return err
}
req.Header.Set("Content-Type", "application/json")
req.Header.Set("Authorization", "Bearer "+c.token)
req.Header.Set("Accept", "application/vnd.github+json")
req.Header.Set("X-GitHub-Api-Version", "2022-11-28")
resp, err := c.httpClient.Do(req)
if err != nil {
return fmt.Errorf("GitHub API request failed: %w", err)
}
defer resp.Body.Close()
if resp.StatusCode < 200 || resp.StatusCode >= 300 {
var errBody struct {
Message string `json:"message"`
}
json.NewDecoder(resp.Body).Decode(&errBody) //nolint:errcheck
if errBody.Message != "" {
return fmt.Errorf("GitHub API returned %d: %s", resp.StatusCode, errBody.Message)
}
return fmt.Errorf("GitHub API returned %d", resp.StatusCode)
}
return nil
}