util

func Sha256FileHex ¶

func Sha256FileHex(path string) (string, error)

Sha256FileHex streams the file at path and returns the lowercase hexadecimal SHA-256.

func Sha256Hex ¶

func Sha256Hex(b []byte) string

Sha256Hex returns the lowercase hexadecimal SHA-256 of the provided bytes.

func Sha256StringHex ¶

func Sha256StringHex(s string) string

Sha256StringHex returns the lowercase hexadecimal SHA-256 of the provided string.

func SplitNonEmptyLines ¶

func SplitNonEmptyLines(s string) []string

func TarDirectoryToWriter ¶

func TarDirectoryToWriter(localDir string, targetPrefix string, w io.Writer) error

TarDirectoryToWriter walks localDir and writes a tar stream to w. Each entry path in the archive is prefixed with targetPrefix when non-empty and not ".". Extract with `tar -xpf - -C <dest>`.

func TarFilesToWriter ¶

func TarFilesToWriter(localRoot string, files []string, w io.Writer) error

TarFilesToWriter writes a tar stream containing only the provided relative file paths from localRoot. - files must be relative to localRoot and use OS path separators. They will be normalized to forward slashes in the archive. - directories will be created implicitly for files; directory headers are included as needed. - symlinks are ignored; non-regular special files are skipped.

func Truncate ¶

func Truncate(s string, max int) string