Method Detect

configs/toolchain_windows.go:248–298

Detect detect local installed MSVC.

(toolchainName string)

// Detect detect local installed MSVC.
func (t *Toolchain) Detect(toolchainName string) error {
	if err := buildtools.CheckTools(t.ctx, "git", "vswhere"); err != nil {
		return fmt.Errorf("vswhere is not available -> %w", err)
	}

	// Query all available msvc installation paths.
	command := "vswhere -products * -requires Microsoft.VisualStudio.Component.VC.Tools.x86.x64 -property installationPath"
	exector := cmd.NewExecutor("", command)
	output, err := exector.ExecuteOutput()
	if err != nil {
		return err
	}

	// Trim the output.
	msvcDir := strings.TrimSpace(output)
	if msvcDir == "" {
		return fmt.Errorf("msvc not found, please install msvc first")
	}

	switch toolchainName {
	case "", "msvc", "clang-cl":
		version, err := t.findLatestMSVCVersion(filepath.Join(msvcDir, "VC", "Tools", "MSVC"))
		if err != nil {
			return err
		}
		t.Version = version

	case "clang":
		t.Version = "" // clang version is not required

	default:
		return fmt.Errorf("unsupported toolchain name: %s", toolchainName)
	}

	t.Url = "file:///" + msvcDir
	// In windows, if no toolchain name is specified, use msvc as default.
	t.Name = expr.If(toolchainName == "", "msvc", toolchainName)
	t.SystemName = "Windows"
	t.SystemProcessor = "x86_64"
	t.Host = "x86_64-w64-mingw32"

	if err := t.Validate(); err != nil {
		return err
	}

	if err := t.CheckAndRepair(true); err != nil {
		return err
	}

	return nil
}

func (Toolchain) arch() string {
	switch runtime.GOARCH {