Enum CAHash 

pub enum CAHash {
    Flat(NixHash),
    Nar(NixHash),
    Text([u8; 32]),
}

A Nix CAHash describes a content-addressed hash of a path.

The way Nix prints it as a string is a bit confusing, but there’s essentially three modes, Flat, Nar and Text. Flat and Nar support all 4 algos that NixHash supports (sha1, md5, sha256, sha512), Text only supports sha256.

Variants

Flat(NixHash)

Nar(NixHash)

Text([u8; 32])

Implementations

impl CAHash

pub fn hash(&self) -> Cow<'_, NixHash>

pub fn mode(&self) -> HashMode

pub fn from_nix_hex_str(s: &str) -> Option<Self>

Constructs a CAHash from the textual representation, which is one of the three:

• text:sha256:$nixbase32sha256digest
• fixed:r:$algo:$nixbase32digest
• fixed:$algo:$nixbase32digest

These formats are used in NARInfo, for example.

Trait Implementations

impl Clone for CAHash

fn clone(&self) -> CAHash

Returns a duplicate of the value.

fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source.

impl Debug for CAHash

fn fmt(&self, f: &mut Formatter<'_>) -> Result

Formats the value using the given formatter.

impl Display for CAHash

Formats a CAHash in the Nix default hash format, which is the format that’s used in NARInfos for example.

fn fmt(&self, f: &mut Formatter<'_>) -> Result

Formats the value using the given formatter.

impl NixDeserialize for CAHash

Available on crate features wire and nix-compat-derive only.

async fn try_deserialize<R>(reader: &mut R) -> Result<Option<Self>, R::Error>

where R: ?Sized + NixRead + Send,

Read a value from the reader. This returns an Option to support gracefull shutdown.

fn deserialize<R>( reader: &mut R, ) -> impl Future<Output = Result<Self, R::Error>> + Send + '_

where R: ?Sized + NixRead + Send,

impl NixSerialize for CAHash

Available on crate features wire and nix-compat-derive only.

async fn serialize<W>(&self, writer: &mut W) -> Result<(), W::Error>

where W: NixWrite,

Write a value to the writer.

impl PartialEq for CAHash

fn eq(&self, other: &CAHash) -> bool

Tests for self and other values to be equal, and is used by ==.

fn ne(&self, other: &Rhs) -> bool

Tests for !=. The default implementation is almost always sufficient, and should not be overridden without very good reason.

impl Eq for CAHash

impl StructuralPartialEq for CAHash