# Test GOMODCACHE
env GO111MODULE=on

# Explicitly set GOMODCACHE
env GOMODCACHE=$WORK/modcache
go env GOMODCACHE
stdout $WORK[/\\]modcache
go get rsc.io/quote@v1.0.0
exists $WORK/modcache/cache/download/rsc.io/quote/@v/v1.0.0.info
grep '{"Version":"v1.0.0","Time":"2018-02-14T00:45:20Z"}' $WORK/modcache/cache/download/rsc.io/quote/@v/v1.0.0.info

# Ensure GOMODCACHE doesn't affect location of sumdb, but $GOMODCACHE/cache/download/sumdb is still written

# '-n' should print commands but not actually execute them.
go clean -modcache -n
stdout '^rm -rf .*pkg.mod$'
exists $GOPATH/pkg/mod/cache/download/rsc.io/quote/@v/v1.5.0.info
exists $GOPATH/pkg/mod/cache/download/rsc.io/quote/@v/v1.5.0.mod
exists $GOPATH/pkg/mod/cache/download/rsc.io/quote/@v/v1.5.0.zip

# 'go clean -modcache' should actually delete the files.
go clean -modcache
! exists $GOPATH/pkg/mod/cache/download/rsc.io/quote/@v/v1.5.0.info

	testenv.MustHaveExternalNetwork(t)

	// Create a temp dir and modcache subdir.
	d := t.TempDir()
	// Create a spot for the modcache.
	modcache := filepath.Join(d, "modcache")
	if err := os.Mkdir(modcache, 0777); err != nil {
		t.Fatal(err)
	}

	t.Setenv("GO111MODULE", "on")
	t.Setenv("GOMODCACHE", modcache)

	// Download the JSON test file from the GOPROXY with `go mod download`,

# insecure host
env GOINSECURE=vcs-test.golang.org
go clean -modcache
go mod download vcs-test.golang.org/insecure/go/insecure@latest

# insecure glob host
env GOINSECURE=*.golang.org
go clean -modcache
go mod download vcs-test.golang.org/insecure/go/insecure@latest

# insecure multiple host
env GOINSECURE=somewhere-else.com,*.golang.org
go clean -modcache
go mod download vcs-test.golang.org/insecure/go/insecure@latest

go clean -modcache


# Also try it with a 'go install' that succeeds.
# (But skip in short mode, because linking a binary is expensive.)
[!short] go install -modcacherw example.com/printversion@v0.1.0
[!short] cp $WORK/extraneous.txt $GOPATH/pkg/mod/example.com/printversion@v0.1.0/extraneous_file.go
[!short] go clean -modcache


# The flag should also be applied if given in GOFLAGS

! exists $GOPATH/pkg/mod/rsc.io/quote@v1.5.2/extraneous_file.go


# Repeat part of the test with 'go mod download' instead of 'go get' to verify
# -modcacherw is supported on 'go mod' subcommands.
go clean -modcache
go mod download -modcacherw rsc.io/quote
cp $WORK/extraneous.txt $GOPATH/pkg/mod/rsc.io/quote@v1.5.2/extraneous_file.go
! go mod verify
[!root] ! cp $WORK/extraneous.txt $GOPATH/pkg/mod/rsc.io/quote@v1.5.2/go.mod

# commands that load the package in the current directory fail
! go build
! go fmt
! go generate
! go get
! go install
! go list
! go run
! go test
! go vet

# clean succeeds, even with -modcache
go clean -modcache

# doc succeeds for standard library
go doc unsafe

# env succeeds
go env

# tool succeeds
go tool -n test2json

# version succeeds
go version

-- x.mod --
module m

# This test verifies that GOMODCACHE does not affect whether checksums are embedded
# with vendored files.
# See issue #46400
[short] skip 'builds and links a binary twice'
go mod tidy
go mod vendor

go build -mod=vendor
go version -m example$GOEXE
cp stdout version-m.txt

env GOMODCACHE=$WORK${/}modcache
go build -mod=vendor
go version -m example$GOEXE
cmp stdout version-m.txt

-- go.mod --
module example
go 1.22

[GOOS:windows] env GOPROXY=file:///$WORK/mod1/cache/download
[!GOOS:windows] env GOPROXY=file://$WORK/mod1/cache/download
env GOMODCACHE=$WORK/modcache2


# If we resolve the "latest" version query using a proxy,
# it is only going to have Git origin information about the one
# commit — not the other tags that would go into resolving
# the underlying version list.

# Set GOCACHE to a clean directory to ensure that 'go build' has work to report.
[!GOOS:windows] env GOCACHE=$WORK/gocache
[GOOS:windows] env GOCACHE=$WORK\gocache

# 'go build' should use GOTMPDIR if set.
[!GOOS:windows] env GOTMPDIR=$WORK/my-favorite-tmpdir
[GOOS:windows] env GOTMPDIR=$WORK\my-favorite-tmpdir
mkdir $GOTMPDIR
go build -x hello.go
stderr ^WORK=.*my-favorite-tmpdir