func CopyDirToTmp(t testing.TB, srcdir string) string
CopyDirToTmp copies dir to a temporary test directory using CopyTestFiles and returns the path to the test directory.
func CopyFS(dstdir string, src fs.FS) error
CopyFS copies the files and directories in src to a destination directory dst. Paths to files and directories ending in a ".test" extension have the ".test" extension removed. This allows tests to hide files whose names have special meaning, such as "go.mod" files or "testdata" directories from the go command, or ill-formed Go source files from gofmt.
For example if we copy the directory testdata:
testdata/
go.mod.test
a/a.go
b/b.go
The resulting files will be:
dst/
go.mod
a/a.go
b/b.go
func ExtractTxtar(dstdir string, ar *txtar.Archive) error
ExtractTxtar writes each archive file to the corresponding location beneath dir.
TODO(adonovan): move this to txtar package, we need it all the time (#61386).
func ExtractTxtarToTmp(t testing.TB, archive string) string
ExtractTxtarToTmp read a txtar archive on a given path, extracts it to a temporary directory, and returns the temporary directory.