go work use
go list

# Using a new enough Go version, fails later and can suggest 'go work use'.
env TESTGO_VERSION=go1.21.2
env TESTGO_VERSION_SWITCH=switch
cp go.work.orig go.work
! go list
stderr '^go: module . listed in go.work file requires go >= 1.21.2, but go.work lists go 1.21.1; to update it:\n\tgo work use$'

# go work use fixes the problem.
go work use
go list

-- go.work --
go 1.21.1

        link.createLink("other")

        given:
        run("work")
        run("work")
        result.assertTasksSkipped(":work")

        when:
        inFile.text = 'new content'
        run("work")

        then:
        result.assertTasksNotSkipped(":work")

        when:
        run("work")

        then:
        result.assertTasksSkipped(":work")
    }

! go work use
stderr '^go: no go\.work file found\n\t\(run ''go work init'' first or specify path using GOWORK environment variable\)$'

! go work use .
stderr '^go: no go\.work file found\n\t\(run ''go work init'' first or specify path using GOWORK environment variable\)$'

! go work edit
stderr '^go: no go\.work file found\n\t\(run ''go work init'' first or specify path using GOWORK environment variable\)$'

! go work edit -go=1.18

! go build -x
! exists $WORK/log.txt

-- go.mod --
module m

-- m.go --
package m

// #define X 1
import "C"

-- $WORK/program files/gcc --
#!/bin/sh

echo ok >$WORK/log.txt
-- $WORK/program files/clang --
#!/bin/sh

echo ok >$WORK/log.txt
-- $WORK/program files/gcc.bat --
echo ok >%WORK%\log.txt
-- $WORK/program files/clang.bat --

-- $WORK/notfound/example.com/join/subpkg/@v/list --
v1.0.0-does-not-exist
-- $WORK/notfound/example.com/join/@v/list --
v1.1.0
-- $WORK/notfound/example.com/join/@v/v1.1.0.info --
{"Version": "v1.1.0"}
-- $WORK/gatekeeper/example.com/join/subpkg/@v/list --
-- $WORK/gatekeeper/example.com/join/subpkg/@latest --
ERROR: Latest version is forbidden.
-- $WORK/gatekeeper/example.com/join/@v/list --
v1.1.0

cmpenv go.mod $WORK/go.mod.edit2

# go mod edit -json
go mod edit -json
cmpenv stdout $WORK/go.mod.json

# go mod edit -json (retractions with rationales)
go mod edit -json $WORK/go.mod.retractrationale
cmp stdout $WORK/go.mod.retractrationale.json

# go mod edit -json (deprecation)
go mod edit -json $WORK/go.mod.deprecation
cmp stdout $WORK/go.mod.deprecation.json

# Note that toolchain lines in modules should be completely ignored.
env TESTGO_VERSION=go1.50
mkdir m1_22_0
go mod init -C m1_22_0
go mod edit -C m1_22_0 -go=1.22.0 -toolchain=go1.99.0

# work init writes the current Go version to the go line
go work init
grep '^go 1.50$' go.work
! grep toolchain go.work

# work init with older modules should leave go 1.50 in the go.work.
rm go.work
go work init ./m1_22_0

# Test support for go work edit -toolchain to set toolchain to use

env GOTOOLCHAIN=local
env GO111MODULE=on

! grep toolchain go.work
go work edit -toolchain=go1.9
grep 'toolchain go1.9' go.work

go work edit -toolchain=default
grep 'toolchain default' go.work

go work edit -toolchain=none
! grep toolchain go.work

-- go.work --
go 1.8
use .
-- go.mod --

func prepareFreeWorkbufs() {
	lock(&work.wbufSpans.lock)
	if work.full != 0 {
		throw("cannot free workbufs when work.full != 0")
	}
	// Since all workbufs are on the empty list, we don't care
	// which ones are in which spans. We can wipe the entire empty
	// list and move all workbuf spans to the free list.
	work.empty = 0
	work.wbufSpans.free.takeAll(&work.wbufSpans.busy)
	unlock(&work.wbufSpans.lock)
}

[!GOOS:windows] env GOPROXY=file://$WORK/gopath1/pkg/mod/cache/download,file://$WORK/sumproxy
env GOPATH=$WORK/gopath2
rm go.sum
go get -x -v golang.org/x/text@v0.3.2

# Once the checksum is present in the go.sum file,
# an empty file-based sumdb can be used in conjunction with
# a fallback module mirror.
grep golang.org/x/text go.sum
env GOPATH=$WORK/gopath3
[GOOS:windows] env GOPROXY=file:///$WORK/sumproxy