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 *Context

	// GoVersion describes the accepted Go language version. The string must
	// start with a prefix of the form "go%d.%d" (e.g. "go1.20", "go1.21rc1", or
	// "go1.21.0") or it must be empty; an empty string disables Go language
	// version checks. If the format is invalid, invoking the type checker will
	// result in an error.
	GoVersion string

go list ./b/main.go
env GOWORK=off
go build -n -o foo foo.go
env GOWORK=
go build -n -o foo foo.go

-- go.work.dup --
go 1.18

use (
	a
	b
	../src/a
)
-- go.work.want --
go $goversion

use (
	./a
	./b
)
-- go.work.d --
go 1.18

use (
	a
	b
	d
)
-- a/go.mod --

module example.com/a

-- a/a.go --
package a

import "fmt"

		if b.IsCmdList {
			return nil
		}
		return errors.New("binary-only packages are no longer supported")
	}

	if p.Module != nil && !allowedVersion(p.Module.GoVersion) {
		return errors.New("module requires Go " + p.Module.GoVersion + " or later")
	}

	if err := b.checkDirectives(a); err != nil {
		return err
	}

	if err := sh.Mkdir(a.Objdir); err != nil {
		return err
	}

		If module-aware mode is disabled, GOMOD will be the empty string.
	GOTOOLDIR
		The directory where the go tools (compile, cover, doc, etc...) are installed.
	GOVERSION
		The version of the installed Go tree, as reported by runtime.Version.
	`,
}

var HelpFileType = &base.Command{
	UsageLine: "filetype",
	Short:     "file types",
	Long: `

	r.reportChanges(oldReqs, newReqs)

	if gowork := modload.FindGoWork(base.Cwd()); gowork != "" {
		wf, err := modload.ReadWorkFile(gowork)
		if err == nil && modload.UpdateWorkGoVersion(wf, modload.MainModules.GoVersion()) {
			modload.WriteWorkFile(gowork, wf)
		}
	}
}

// parseArgs parses command-line arguments and reports errors.
//
// The command-line arguments are of the form path@version or simply path, with

//	    Dir        string        // directory holding local copy of files, if any
//	    GoMod      string        // path to go.mod file describing module, if any
//	    GoVersion  string        // go version used in module
//	    Retracted  []string      // retraction information, if any (with -retracted or -u)
//	    Deprecated string        // deprecation message, if any (with -u)

						},
					},
					"buildDate": {
						SchemaProps: spec.SchemaProps{
							Default: "",
							Type:    []string{"string"},
							Format:  "",
						},
					},
					"goVersion": {
						SchemaProps: spec.SchemaProps{
							Default: "",
							Type:    []string{"string"},
							Format:  "",
						},
					},
					"compiler": {

          "type": "string"
        },
        "gitTreeState": {
          "type": "string"
        },
        "gitVersion": {
          "type": "string"
        },
        "goVersion": {
          "type": "string"
        },
        "major": {
          "type": "string"
        },
        "minor": {
          "type": "string"
        },
        "platform": {