findGitLabREADME tries to find the correct README filename in a repository using GitLab API.
(u *url.URL)
| 12 | |
| 13 | // findGitLabREADME tries to find the correct README filename in a repository using GitLab API. |
| 14 | func findGitLabREADME(u *url.URL) (*source, error) { |
| 15 | owner, repo, ok := strings.Cut(strings.TrimPrefix(u.Path, "/"), "/") |
| 16 | if !ok { |
| 17 | return nil, fmt.Errorf("invalid url: %s", u.String()) |
| 18 | } |
| 19 | |
| 20 | projectPath := url.QueryEscape(owner + "/" + repo) |
| 21 | |
| 22 | type readme struct { |
| 23 | ReadmeURL string `json:"readme_url"` |
| 24 | } |
| 25 | |
| 26 | apiURL := fmt.Sprintf("https://%s/api/v4/projects/%s", u.Hostname(), projectPath) |
| 27 | |
| 28 | //nolint:bodyclose |
| 29 | // it is closed on the caller |
| 30 | res, err := http.Get(apiURL) //nolint: gosec,noctx |
| 31 | if err != nil { |
| 32 | return nil, fmt.Errorf("unable to get url: %w", err) |
| 33 | } |
| 34 | |
| 35 | body, err := io.ReadAll(res.Body) |
| 36 | if err != nil { |
| 37 | return nil, fmt.Errorf("unable to read http response body: %w", err) |
| 38 | } |
| 39 | |
| 40 | var result readme |
| 41 | if err := json.Unmarshal(body, &result); err != nil { |
| 42 | return nil, fmt.Errorf("unable to parse json: %w", err) |
| 43 | } |
| 44 | |
| 45 | readmeRawURL := strings.ReplaceAll(result.ReadmeURL, "blob", "raw") |
| 46 | |
| 47 | if res.StatusCode == http.StatusOK { |
| 48 | //nolint:bodyclose |
| 49 | // it is closed on the caller |
| 50 | resp, err := http.Get(readmeRawURL) //nolint: gosec,noctx |
| 51 | if err != nil { |
| 52 | return nil, fmt.Errorf("unable to get url: %w", err) |
| 53 | } |
| 54 | |
| 55 | if resp.StatusCode == http.StatusOK { |
| 56 | return &source{resp.Body, readmeRawURL}, nil |
| 57 | } |
| 58 | } |
| 59 | |
| 60 | return nil, errors.New("can't find README in GitLab repository") |
| 61 | } |