nix::ContentAddress Struct Reference

#include <content-address.hh>

Public Member Functions
	GENERATE_CMP (ContentAddress, me->method, me->hash)
std::string	render () const
std::string	printMethodAlgo () const

Static Public Member Functions
static ContentAddress	parse (std::string_view rawCa)
static std::optional< ContentAddress >	parseOpt (std::string_view rawCaOpt)

Public Attributes
ContentAddressMethod	method
Hash	hash

Detailed Description

We've accumulated several types of content-addressed paths over the years; fixed-output derivations support multiple hash algorithms and serialisation methods (flat file vs NAR). Thus, ‘ca’ has one of the following forms:

• ‘text:sha256:<sha256 hash of file contents>’: For paths computed by Store::makeTextPath() / Store::addTextToStore().
• ‘fixed:<r?>:<ht>:<h>’: For paths computed by Store::makeFixedOutputPath() / Store::addToStore().

Member Function Documentation

render()

std::string nix::ContentAddress::render

(

)

const

Compute the content-addressability assertion (ValidPathInfo::ca) for paths created by Store::makeFixedOutputPath() / Store::addToStore().

Member Data Documentation

hash

Hash nix::ContentAddress::hash

Hash of that serialization

method

ContentAddressMethod nix::ContentAddress::method

How the file system objects are serialized

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The documentation for this struct was generated from the following files:

• lix/libstore/content-address.hh
• lix/libstore/content-address.cc