Function findInstalledVersion

internal/cli/cli.go:153–209

(version string)

	return utils.GoVersion{}, fmt.Errorf("no version matching '%s' found", version)
}
func findInstalledVersion(version string) (utils.GoVersion, error) {
	homeDir, err := os.UserHomeDir()
	if err != nil {
		return utils.GoVersion{}, fmt.Errorf("failed to get home directory: %v", err)
	}
	goVersionsDir := filepath.Join(homeDir, ".govm", "versions")
	versionDir := filepath.Join(goVersionsDir, "go"+version)
	if _, err := os.Stat(versionDir); err == nil {
		return utils.GoVersion{
			Version:   version,
			Path:      versionDir,
			Installed: true,
		}, nil
	}
	entries, err := os.ReadDir(goVersionsDir)
	if err != nil {
		return utils.GoVersion{}, fmt.Errorf("failed to read versions directory: %v", err)
	}
	prefix := "go" + version + "."
	var matchedVersion utils.GoVersion
	found := false
	for _, entry := range entries {
		if entry.IsDir() && strings.HasPrefix(entry.Name(), prefix) {
			versionPath := filepath.Join(goVersionsDir, entry.Name())
			versionStr := strings.TrimPrefix(entry.Name(), "go")
			if !found || compareVersions(versionStr, matchedVersion.Version) > 0 {
				matchedVersion = utils.GoVersion{
					Version:   versionStr,
					Path:      versionPath,
					Installed: true,
				}
				found = true
			}
		}
	}
	if !found && !strings.Contains(version, ".") {
		prefix = "go" + version + "."
		for _, entry := range entries {
			if entry.IsDir() && strings.HasPrefix(entry.Name(), prefix) {
				versionPath := filepath.Join(goVersionsDir, entry.Name())
				versionStr := strings.TrimPrefix(entry.Name(), "go")
				if !found || compareVersions(versionStr, matchedVersion.Version) > 0 {
					matchedVersion = utils.GoVersion{
						Version:   versionStr,
						Path:      versionPath,
						Installed: true,
					}
					found = true
				}
			}
		}
	}
	if found {
		return matchedVersion, nil
	}
	return utils.GoVersion{}, fmt.Errorf("no installed version matching '%s' found", version)
}
func compareVersions(v1, v2 string) int {