go/src/cmd/vendor/golang.org/x/mod/sumdb/dirhash/hash.go

var DefaultHash …

type Hash …

// Hash1 is the "h1:" directory hash function, using SHA-256.
//
// Hash1 is "h1:" followed by the base64-encoded SHA-256 hash of a summary
// prepared as if by the Unix command:
//
//	sha256sum $(find . -type f | sort) | sha256sum
//
// More precisely, the hashed summary contains a single line for each file in the list,
// ordered by sort.Strings applied to the file names, where each line consists of
// the hexadecimal SHA-256 hash of the file content,
// two spaces (U+0020), the file name, and a newline (U+000A).
//
// File names with newlines (U+000A) are disallowed.
func Hash1(files []string, open func(string) (io.ReadCloser, error)) (string, error) { … }

// 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.
func HashDir(dir, prefix string, hash Hash) (string, error) { … }

// DirFiles returns the list of files in the tree rooted at dir,
// replacing the directory name dir with prefix in each name.
// The resulting names always use forward slashes.
func DirFiles(dir, prefix string) ([]string, error) { … }

// HashZip returns the hash of the file content in the named zip file.
// Only the file names and their contents are included in the hash:
// the exact zip file format encoding, compression method,
// per-file modification times, and other metadata are ignored.
func HashZip(zipfile string, hash Hash) (string, error) { … }