testenv.MustHaveExternalNetwork(t)
	testenv.MustHaveExecPath(t, "git")

	oldAllowMissingModuleImports := allowMissingModuleImports
	oldRootMode := RootMode
	defer func() {
		allowMissingModuleImports = oldAllowMissingModuleImports
		RootMode = oldRootMode
	}()
	allowMissingModuleImports = true
	RootMode = NoRoot

	ctx := context.Background()
	rs := LoadModFile(ctx)

	for _, tt := range importTests {

		// before loading packages, since it affects package locations, e.g.,
		// for -race and -msan.
		modload.ForceUseModules = true
		modload.RootMode = modload.NoRoot
		modload.AllowMissingModuleImports()
		modload.Init()
	} else {
		modload.InitWorkfile()
	}

	work.BuildInit()
	b := work.NewBuilder("")
	defer func() {
		if err := b.Close(); err != nil {
			base.Fatal(err)
		}
	}()

//
// This function affects the default cfg.BuildMod when outside of a module,
// so it can only be called prior to Init.
func AllowMissingModuleImports() {
	if initialized {
		panic("AllowMissingModuleImports after Init")
	}
	allowMissingModuleImports = true
}

// makeMainModules creates a MainModuleSet and associated variables according to
// the given main modules.

		}
		if e.QueryErr != nil && e.QueryErr != ErrNoModRoot {
			return fmt.Sprintf("cannot find module providing package %s: %v", e.Path, e.QueryErr)
		}
		if cfg.BuildMod == "mod" || (cfg.BuildMod == "readonly" && allowMissingModuleImports) {
			return "cannot find module providing package " + e.Path
		}

		if e.replaced.Path != "" {
			suggestArg := e.replaced.Path
			if !module.IsZeroPseudoVersion(e.replaced.Version) {

//
// See golang.org/issue/40276 for details and rationale.
func installOutsideModule(ctx context.Context, args []string) {
	modload.ForceUseModules = true
	modload.RootMode = modload.NoRoot
	modload.AllowMissingModuleImports()
	modload.Init()
	BuildInit()

	// Load packages. Ignore non-main packages.
	// Print a warning if an argument contains "..." and matches no main packages.

	// what was requested.
	modload.ExplicitWriteGoMod = true

	// Allow looking up modules for import paths when outside of a module.
	// 'go get' is expected to do this, unlike other commands.
	modload.AllowMissingModuleImports()

	// 'go get' no longer builds or installs packages, so there's nothing to do
	// if there's no go.mod file.
	// TODO(#40775): make modload.Init return ErrNoModRoot instead of exiting.

			// version specified by a new root than add a new dependency on an
			// unrelated version.
			continue
		}

		if !ld.ResolveMissingImports || (!HasModRoot() && !allowMissingModuleImports) {
			// We've loaded as much as we can without resolving missing imports.
			break
		}

		modAddedBy, err := ld.resolveMissingImports(ctx)
		if err != nil {
			ld.error(err)
			break