104 lines
3.1 KiB
Go
104 lines
3.1 KiB
Go
 
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package glclient
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import (
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"bytes"
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"context"
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"encoding/json"
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"fmt"
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"net/http"
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"net/url"
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"strings"
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"time"
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)
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// Client is a minimal GitLab API client covering only the Releases endpoint.
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type Client struct {
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baseURL string
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token string
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projectID string // numeric ID or URL-encoded namespace/project
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httpClient *http.Client
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}
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// New creates a Client. baseURL is the GitLab instance root (e.g. "https://gitlab.example.com").
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// project can be a numeric ID ("123") or a namespace/project path ("group/myapp").
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func New(baseURL, token, project string) *Client {
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return &Client{
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baseURL: strings.TrimRight(baseURL, "/"),
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token: token,
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projectID: encodeProjectPath(project),
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httpClient: &http.Client{
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Timeout: 30 * time.Second,
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},
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}
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}
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// endpoint builds a full API URL for the given resource under the project.
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// Uses url.URL{Path, RawPath} to preserve %2F encoding in the project path —
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// url.Parse would silently decode %2F back to / in the Path field.
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func (c *Client) endpoint(resource string) string {
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rawPath := fmt.Sprintf("/api/v4/projects/%s/%s", c.projectID, resource)
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u, err := url.Parse(c.baseURL)
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if err != nil {
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return c.baseURL + rawPath // fallback, handles only simple cases
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}
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u.Path = strings.ReplaceAll(rawPath, "%2F", "/")
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u.RawPath = rawPath
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return u.String()
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}
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// encodeProjectPath URL-encodes a GitLab project identifier for use in an API path.
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// Numeric IDs ("123") pass through unchanged.
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// Path-style IDs ("group/project") have each segment encoded and slashes replaced with %2F,
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// because url.PathEscape does not encode / (it is a valid path separator).
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func encodeProjectPath(project string) string {
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parts := strings.Split(project, "/")
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for i, p := range parts {
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parts[i] = url.PathEscape(p)
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}
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return strings.Join(parts, "%2F")
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}
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type createReleaseRequest struct {
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Name string `json:"name"`
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TagName string `json:"tag_name"`
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Description string `json:"description"`
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}
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// CreateRelease creates a GitLab release on an existing tag.
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// The tag must already be pushed to the remote before calling this.
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func (c *Client) CreateRelease(ctx context.Context, tagName, description string) error {
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// json.Marshal never fails for a struct with only string fields
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body, _ := json.Marshal(createReleaseRequest{
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Name: tagName,
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TagName: tagName,
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Description: description,
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})
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endpoint := c.endpoint("releases")
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req, err := http.NewRequestWithContext(ctx, http.MethodPost, endpoint, bytes.NewReader(body))
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if err != nil {
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return err
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}
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req.Header.Set("Content-Type", "application/json")
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req.Header.Set("PRIVATE-TOKEN", c.token)
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resp, err := c.httpClient.Do(req)
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if err != nil {
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return fmt.Errorf("GitLab API request failed: %w", err)
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}
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defer resp.Body.Close()
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if resp.StatusCode < 200 || resp.StatusCode >= 300 {
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var errBody struct {
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Message string `json:"message"`
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}
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json.NewDecoder(resp.Body).Decode(&errBody) //nolint:errcheck
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if errBody.Message != "" {
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return fmt.Errorf("GitLab API returned %d: %s", resp.StatusCode, errBody.Message)
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}
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return fmt.Errorf("GitLab API returned %d", resp.StatusCode)
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}
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return nil
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}
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