pub fn write_named(what: &str, name: &str, bytes: &[u8]) -> Result<PathBuf>Expand description
bytes in a file called name (a part’s own name, which tells a
viewer its type) inside a fresh directory of ours: the directory is
created new (never one someone put there first) with mode 0700,
the file inside with 0600. discard takes both away again.