stdout '"TagSum": "t1:47DEQpj8HBSa[+]/TImW[+]5JCeuQeRkm5NMpJWZG3hSuFU="'
stdout '"Ref": "HEAD"'
stdout '"Hash": "fc3a09f3dc5cfe0d7a743ea18f1f5226e68b3777"'
! stdout '"Dir"'
! stdout '"Info"'
! stdout '"GoMod"'
! stdout '"Zip"'

# reuse go mod download vcstest/hello pseudoversion result
go mod download -reuse=hellopseudo.json -x -json vcs-test.golang.org/git/hello.git@v0.0.0-20170922010558-fc3a09f3dc5c

env TESTGO_VERSION=go1.500
env TESTGO_VERSION_SWITCH=mismatch

# go env GOMOD should not trigger a toolchain download
cd $GOPATH/mod
go env GOMOD
stdout mod[/\\]go.mod
! stderr 'go: toolchain go1.500 invoked to provide go1.700'

# go env GOWORK should not trigger a toolchain download
cd $GOPATH/work
go env GOWORK
stdout work[/\\]go.work
! stderr 'go: toolchain go1.500 invoked to provide go1.700'

-- $GOPATH/mod/go.mod --

# list {{.Dir}} shows replaced directories
cp go.mod2 go.mod
go list -mod=mod -f {{.Dir}} rsc.io/quote
go list -m -f '{{.Path}} {{.Version}} {{.Dir}}{{with .Replace}} {{.GoMod}} => {{.Version}} {{.Dir}} {{.GoMod}}{{end}}' all
stdout 'mod[\\/]rsc.io[\\/]quote@v1.5.1'
stdout 'v1.3.0.*mod[\\/]rsc.io[\\/]sampler@v1.3.1 .*[\\/]v1.3.1.mod => v1.3.1.*sampler@v1.3.1 .*[\\/]v1.3.1.mod'

# list std should work
go list std

				m.GoVersion = summary.goVersion
			}
		}

		if m.Version != "" {
			if checksumOk("/go.mod") {
				gomod, err := modfetch.CachePath(ctx, mod, "mod")
				if err == nil {
					if info, err := os.Stat(gomod); err == nil && info.Mode().IsRegular() {
						m.GoMod = gomod
					}
				}
				if gomodsum, ok := modfetch.RecordedSum(modkey(mod)); ok {
					m.GoModSum = gomodsum
				}
			}

	}

	if *editJSON && *editPrint {
		base.Fatalf("go: cannot use both -json and -print")
	}

	if len(args) > 1 {
		base.Fatalf("go: too many arguments")
	}
	var gomod string
	if len(args) == 1 {
		gomod = args[0]
	} else {
		gomod = modload.ModFilePath()
	}

	if *editModule != "" {
		if err := module.CheckImportPath(*editModule); err != nil {
			base.Fatalf("go: invalid -module: %v", err)
		}
	}

# Configures Depdendabot to PR go security updates only

version: 2
updates:
  # Go configuration for master branch
  - package-ecosystem: "gomod"
    directory: "/"
    schedule:
      interval: "daily"
    # Limit number of open PRs to 0 so that we only get security updates
    # See https://docs.github.com/en/code-security/dependabot/dependabot-security-updates/configuring-dependabot-security-updates
    open-pull-requests-limit: 0
    labels:

	if err != nil {
		return nil, "", err
	}
	return info, file, nil
}

// GoMod is like Lookup(ctx, path).GoMod(rev) but avoids the
// repository path resolution in Lookup if the result is
// already cached on local disk.
func GoMod(ctx context.Context, path, rev string) ([]byte, error) {
	// Convert commit hash to pseudo-version
	// to increase cache hit rate.

! go run  example.com/b
stderr 'a(\\|/)a.go:4:8: no required module provides package rsc.io/quote; to add it:\n\tcd '$WORK(\\|/)gopath(\\|/)src(\\|/)a'\n\tgo get rsc.io/quote'
cd a
go get rsc.io/quote
cat go.mod
go env GOMOD # go env GOMOD reports the module in a single module context
stdout $GOPATH(\\|/)src(\\|/)a(\\|/)go.mod
cd ..
go run example.com/b
stdout 'Hello, world.'

# And try from a different directory
cd c
go run  example.com/b

)

// ReadModFile reads and parses the mod file at gomod. ReadModFile properly applies the
// overlay, locks the file while reading, and applies fix, if applicable.
func ReadModFile(gomod string, fix modfile.VersionFixer) (data []byte, f *modfile.File, err error) {
	gomod = base.ShortPath(gomod) // use short path in any errors
	if gomodActual, ok := fsys.OverlayPath(gomod); ok {
		// Don't lock go.mod if it's part of the overlay.

	}
	return ""
}

// ExtraEnvVars returns environment variables that should not leak into child processes.
func ExtraEnvVars() []cfg.EnvVar {
	gomod := ""
	modload.Init()
	if modload.HasModRoot() {
		gomod = modload.ModFilePath()
	} else if modload.Enabled() {
		gomod = os.DevNull
	}
	modload.InitWorkfile()
	gowork := modload.WorkFilePath()
	// As a special case, if a user set off explicitly, report that in GOWORK.