# Explicitly given generated files are formatted with our rules.
gofumpt foo.go
cmp stdout foo.go.golden

# stdin is still considered an explicit file.
stdin foo.go
gofumpt
cmp stdout foo.go.golden

# Implicitly walked generated files get formatted without the added rules.
gofumpt -l .
stdout -count=1 '^badgofmt.go$'
! stdout '^foo.go$'
! stderr .

-- badgofmt.go --
// Code generated by foo. DO NOT EDIT.

package foo

func f() {
println("body")
}
-- foo.go --
// foo is a package about bar.

// Code generated by foo. DO NOT EDIT.

package foo

func f() {

	println("body")

}
-- foo.go.golden --
// foo is a package about bar.

// Code generated by foo. DO NOT EDIT.

package foo

func f() {
	println("body")
}