src/cmd/go/testdata/script/gopath_paths.txt

# Regression test for GOPATH validation in GOPATH mode.
env GO111MODULE=off

env ORIG_GOPATH=$GOPATH

# The literal path '.' in GOPATH should be rejected.
env GOPATH=.
! go build go-cmd-test/helloworld.go
stderr 'GOPATH entry is relative'

# It should still be rejected if the requested package can be
# found using another entry.
env GOPATH=${:}$ORIG_GOPATH${:}.
! go build go-cmd-test
stderr 'GOPATH entry is relative'

# GOPATH cannot be a relative subdirectory of the working directory.
env ORIG_GOPATH
stdout 'ORIG_GOPATH='$WORK[/\\]gopath
cd $WORK
env GOPATH=gopath
! go build gopath/src/go-cmd-test/helloworld.go
stderr 'GOPATH entry is relative'

# Blank paths in GOPATH should be rejected as relative (issue 21928).
env GOPATH=' '${:}$ORIG_GOPATH
! go build go-cmd-test
stderr 'GOPATH entry is relative'

[short] stop

# Empty paths in GOPATH should be ignored (issue 21928).
env GOPATH=${:}$ORIG_GOPATH
env GOPATH
go install go-cmd-test
exists $ORIG_GOPATH/bin/go-cmd-test$GOEXE

-- go-cmd-test/helloworld.go --
package main

func main() {
	println("hello world")
}