mainModule,
				{Path: "go", Version: goVersion},
				{Path: "toolchain", Version: gover.LocalToolchain()},
			}
		} else {
			goVersion = gover.Local()
			pruning = pruningForGoVersion(goVersion)
			roots = []module.Version{
				{Path: "go", Version: goVersion},
				{Path: "toolchain", Version: gover.LocalToolchain()},
			}
		}
		rawGoVersion.Store(mainModule, goVersion)

	"context"
	"errors"
	"fmt"
	"strings"
)

// FromToolchain returns the Go version for the named toolchain,
// derived from the name itself (not by running the toolchain).
// A toolchain is named "goVERSION".
// A suffix after the VERSION introduced by a -, space, or tab is removed.
// Examples:
//
//	FromToolchain("go1.2.3") == "1.2.3"
//	FromToolchain("go1.2.3-bigcorp") == "1.2.3"
//	FromToolchain("invalid") == ""

	// awkwardness from the user.
	bi.GoVersion = runtime.Version()

	return bi, true
}

// BuildInfo represents the build information read from a Go binary.
type BuildInfo struct {
	// GoVersion is the version of the Go toolchain that built the binary
	// (for example, "go1.19.2").
	GoVersion string

	// Path is the package path of the main package for the binary

# Regression test for https://go.dev/issue/58767:
# with an empty go.work file in GOPATH mode, calls to load.defaultGODEBUG for a
# package named "main" panicked in modload.MainModules.GoVersion.

env GO111MODULE=off
cd example
go list example/m

-- example/go.work --
go 1.21
-- example/m/main.go --
package main

	for _, tt := range tests {
		x, err := Parse(tt.in)
		if err != nil {
			t.Fatal(err)
		}
		v := GoVersion(x)
		want := ""
		if tt.out == 0 {
			want = "go1"
		} else if tt.out > 0 {
			want = fmt.Sprintf("go1.%d", tt.out)
		}
		if v != want {
			t.Errorf("GoVersion(%q) = %q, want %q, nil", tt.in, v, want)
		}
	}

				m.Version = q.Version
				m.Time = &q.Time
			}
		}

		if m.GoVersion == "" && checksumOk("/go.mod") {
			// Load the go.mod file to determine the Go version, since it hasn't
			// already been populated from rawGoVersion.
			if summary, err := rawGoModSummary(mod); err == nil && summary.goVersion != "" {
				m.GoVersion = summary.goVersion
			}
		}

		if m.Version != "" {
			if checksumOk("/go.mod") {

	# write our version in toolchain lines.
env goversion=1.99.0
env TESTGO_VERSION=go${goversion}

# An invalid argument should be rejected.

! go mod tidy -go=bananas
stderr '^invalid value "bananas" for flag -go: expecting a Go version like "'$goversion'"$'
cmp go.mod go.mod.orig

! go mod tidy -go=0.9
stderr '^invalid value "0.9" for flag -go: expecting a Go version like "'$goversion'"$'

! go mod tidy -go=2000.0

}

func main() {
	telemetry.Start()
	flag.Usage = usage
	flag.Parse()
	telemetry.Inc("fix/invocations")
	telemetry.CountFlags("fix/flag:", *flag.CommandLine)

	if !version.IsValid(*goVersion) {
		report(fmt.Errorf("invalid -go=%s", *goVersion))
		os.Exit(exitCode)
	}

	sort.Sort(byDate(fixes))

	if *allowedRewrites != "" {
		allowed = make(map[string]bool)
		for _, f := range strings.Split(*allowedRewrites, ",") {

					// information to accurately correlate with the stderr output.
				} else {
					t.Parallel()
				}
			} else {
				old := *goVersion
				*goVersion = tt.Version
				defer func() {
					*goVersion = old
				}()
			}

			// Apply fix: should get tt.Out.
			out, fixed, ok := parseFixPrint(t, tt.Fn, tt.Name, tt.In, true)
			if !ok {
				return
			}

// See the License for the specific language governing permissions and
// limitations under the License.

package k8sversion

import (
	"fmt"

	goversion "github.com/hashicorp/go-version"
	"k8s.io/apimachinery/pkg/version"

	"istio.io/istio/operator/pkg/util/clog"
	"istio.io/istio/pkg/kube"
	pkgVersion "istio.io/istio/pkg/version"
)

const (