Function nix_compat::nixhash::from_str
source · pub fn from_str(s: &str, algo_str: Option<&str>) -> NixHashResult<NixHash>
Expand description
Nix allows specifying hashes in various encodings, and magically just derives the encoding. This function parses strings to a NixHash.
Hashes can be:
- Nix hash strings
- SRI hashes
- bare digests
Encoding for Nix hash strings or bare digests can be:
- base16 (lowerhex),
- nixbase32,
- base64 (StdEncoding)
- sri string
The encoding is derived from the length of the string and the hash type. The hash is communicated out-of-band, but might also be in-band (in the case of a nix hash string or SRI), in which it needs to be consistent with the one communicated out-of-band.