Struct NarInfo

pub struct NarInfo<'a> {

    pub flags: Flags,
    pub store_path: StorePathRef<'a>,
    pub nar_hash: [u8; 32],
    pub nar_size: u64,
    pub references: Vec<StorePathRef<'a>>,
    pub signatures: Vec<SignatureRef<'a>>,
    pub ca: Option<CAHash>,
    pub system: Option<&'a str>,
    pub deriver: Option<StorePathRef<'a>>,
    pub url: &'a str,
    pub compression: Option<&'a str>,
    pub file_hash: Option<[u8; 32]>,
    pub file_size: Option<u64>,
}

Fields

flags: Flags

store_path: StorePathRef<'a>

Store path described by this NarInfo

nar_hash: [u8; 32]

SHA-256 digest of the NAR file

nar_size: u64

Size of the NAR file in bytes

references: Vec<StorePathRef<'a>>

Store paths known to be referenced by the contents

signatures: Vec<SignatureRef<'a>>

Ed25519 signature over the path fingerprint

ca: Option<CAHash>

Content address (for content-defined paths)

system: Option<&'a str>

Nix system triple of NarInfo::deriver

deriver: Option<StorePathRef<'a>>

Store path of the derivation that produced this. The last .drv suffix is stripped.

url: &'a str

Relative URL of the compressed NAR file

compression: Option<&'a str>

Compression method of the NAR file None means Compression: none.

Nix interprets a missing Compression field as Some("bzip2"), so we do as well. We haven’t found any examples of this in the wild, not even in the cache.nixos.org dataset.

file_hash: Option<[u8; 32]>

SHA-256 digest of the file at url

file_size: Option<u64>

Size of the file at url in bytes

Implementations

impl<'a> NarInfo<'a>

pub fn parse(input: &'a str) -> Result<Self, Error>

pub fn fingerprint(&self) -> String

Computes the fingerprint string for certain fields in this NarInfo. This fingerprint is signed in [self.signatures].

pub fn add_signature<S>(&mut self, signer: &'a SigningKey<S>)

where S: Signer<Signature>,

Adds a signature, using the passed signer to sign. This is generic over algo implementations / providers, so users can bring their own signers.

Trait Implementations

impl<'a> Debug for NarInfo<'a>

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

Formats the value using the given formatter.

impl Display for NarInfo<'_>

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

Formats the value using the given formatter.