func (pkg *Package) SetName(name string) { pkg.name = name }

// GoVersion returns the minimum Go version required by this package.
// If the minimum version is unknown, GoVersion returns the empty string.
// Individual source files may specify a different minimum Go version,
// as reported in the [go/ast.File.GoVersion] field.
func (pkg *Package) GoVersion() string { return pkg.goVersion }

// Scope returns the (complete or incomplete) package scope

			s.addTooNew(e)
		}

	case interface{ Unwrap() error }:
		s.addTooNew(err.Unwrap())

	case *gover.TooNewError:
		if s.TooNew == nil ||
			gover.Compare(err.GoVersion, s.TooNew.GoVersion) > 0 ||
			gover.Compare(err.GoVersion, s.TooNew.GoVersion) == 0 && err.What < s.TooNew.What {
			s.TooNew = err
		}
	}
}

// NeedSwitch reports whether Switch would attempt to switch toolchains.

func IsVersionString(path string) bool {
	_, err := goversion.NewSemver(path)
	if err != nil {
		return false
	}
	vs := Version{}
	return yaml.Unmarshal([]byte(path), &vs) == nil
}

// TagToVersionString converts an istio container tag into a version string
func TagToVersionString(path string) (string, error) {
	path = strings.TrimPrefix(path, releasePrefix)
	ver, err := goversion.NewSemver(path)
	if err != nil {
		return "", err

	modload.ForceUseModules = true
	modload.RootMode = modload.NeedRoot

	goVersion := tidyGo.String()
	if goVersion != "" && gover.Compare(gover.Local(), goVersion) < 0 {
		toolchain.SwitchOrFatal(ctx, &gover.TooNewError{
			What:      "-go flag",
			GoVersion: goVersion,
		})
	}

	modload.LoadPackages(ctx, modload.PackageOpts{
		TidyGoVersion:            tidyGo.String(),

	}
	return NewConfig(&cfg), nil
}

func NewConfig(cfg *telemetry.UploadConfig) *Config {
	ucfg := Config{UploadConfig: cfg}
	ucfg.goos = set(ucfg.GOOS)
	ucfg.goarch = set(ucfg.GOARCH)
	ucfg.goversion = set(ucfg.GoVersion)
	ucfg.program = make(map[string]bool, len(ucfg.Programs))
	ucfg.pgversion = make(map[pgkey]bool, len(ucfg.Programs))
	ucfg.pgcounter = make(map[pgkey]bool, len(ucfg.Programs))

package telemetry

// Common types and directories used by multiple packages.

// An UploadConfig controls what data is uploaded.
type UploadConfig struct {
	GOOS       []string
	GOARCH     []string
	GoVersion  []string
	SampleRate float64
	Programs   []*ProgramConfig
}

type ProgramConfig struct {
	// the counter names may have to be
	// repeated for each program. (e.g., if the counters are in a package

					if entry == "explicit" {
						meta.Explicit = true
					}
					if goVersion, ok := strings.CutPrefix(entry, "go "); ok {
						meta.GoVersion = goVersion
						rawGoVersion.Store(mod, meta.GoVersion)
						if gover.Compare(goVersion, gover.Local()) > 0 {
							base.Fatal(&gover.TooNewError{What: mod.Path + " in " + base.ShortPath(vendorFile), GoVersion: goVersion})
						}
					}
					// All other tokens are reserved for future use.

	"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

}

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, ",") {