# Tests Issue #38478
# Tests that go get in GOPATH mode returns a specific error if the argument
# ends with '.go', and either has no slash or refers to an existing file.

env GO111MODULE=off

# argument doesn't have .go suffix
go get -d test

# argument has .go suffix, is a file and exists
! go get -d test.go
stderr 'go: test.go: arguments must be package or module paths'

# argument has .go suffix, doesn't exist and has no slashes
! go get -d test_missing.go
stderr 'go: test_missing.go: arguments must be package or module paths'

# argument has .go suffix, is a file and exists in sub-directory
! go get -d test/test.go
stderr 'go: test/test.go exists as a file, but ''go get'' requires package arguments'

# argument has .go suffix, doesn't exist and has slashes
! go get -d test/test_missing.go
! stderr 'arguments must be package or module paths'
! stderr 'exists as a file, but ''go get'' requires package arguments'

# argument has .go suffix, is a symlink and exists
[symlink] symlink test_sym.go -> test.go
[symlink] ! go get -d test_sym.go
[symlink] stderr 'go: test_sym.go: arguments must be package or module paths'
[symlink] rm test_sym.go

# argument has .go suffix, is a symlink and exists in sub-directory
[symlink] symlink test/test_sym.go -> test.go
[symlink] ! go get -d test/test_sym.go
[symlink] stderr 'go: test/test_sym.go exists as a file, but ''go get'' requires package arguments'
[symlink] rm test_sym.go

# argument has .go suffix, is a directory and exists
mkdir test_dir.go
! go get -d test_dir.go
stderr 'go: test_dir.go: arguments must be package or module paths'
rm test_dir.go

# argument has .go suffix, is a directory and exists in sub-directory
mkdir test/test_dir.go
! go get -d test/test_dir.go
! stderr 'arguments must be package or module paths'
! stderr 'exists as a file, but ''go get'' requires package arguments'
rm test/test_dir.go


-- test.go --
package main
func main() {println("test")}


-- test/test.go --
package main
func main() {println("test")}