func()

in repositories/github.go [33:76]

• 39 lines of code
• 9 McCabe index (conditional complexity)

func (gh *GitHubRepo) getFilteredVersions(bazeliskHome, bazelFork string, wantPrerelease bool) ([]string, error) {
	parse := func(data []byte) ([]gitHubRelease, error) {
		var releases []gitHubRelease
		if err := json.Unmarshal(data, &releases); err != nil {
			return nil, fmt.Errorf("could not parse JSON into list of releases: %v", err)
		}
		return releases, nil
	}

	var releases []gitHubRelease

	merger := func(chunks [][]byte) ([]byte, error) {
		for _, chunk := range chunks {
			current, err := parse(chunk)
			if err != nil {
				return nil, err
			}
			releases = append(releases, current...)
		}
		return json.Marshal(releases)
	}

	url := fmt.Sprintf("https://api.github.com/repos/%s/bazel/releases", bazelFork)
	releasesJSON, err := httputil.MaybeDownload(bazeliskHome, url, bazelFork+"-releases.json", "list of Bazel releases from github.com/"+bazelFork, fmt.Sprintf("token %s", gh.token), merger)
	if err != nil {
		return []string{}, fmt.Errorf("unable to dermine '%s' releases: %v", bazelFork, err)
	}

	if len(releases) == 0 {
		releases, err = parse(releasesJSON)
		if err != nil {
			return nil, err
		}
	}

	var tags []string
	for _, release := range releases {
		if release.Prerelease != wantPrerelease {
			continue
		}
		tags = append(tags, release.TagName)
	}
	return tags, nil
}