# Functions
DirFiles returns the list of files in the tree rooted at dir, replacing the directory name dir with prefix in each name.
Hash1 is the "h1:" directory hash function, using SHA-256.
HashDir returns the hash of the local file system directory dir, replacing the directory name itself with prefix in the file names used in the hash function.
HashZip returns the hash of the file content in the named zip file.
# Variables
DefaultHash is the default hash function used in new go.sum entries.
# Type aliases
A Hash is a directory hash function.