mirror of
https://github.com/privatevoid-net/nix-super.git
synced 2024-09-21 17:08:04 +03:00
2be64efb02
Today's fixed output derivations and regular derivations differ in a few ways which are largely orthogonal. This replaces `isFixedOutput` with a `type` that returns an enum of possible combinations.
124 lines
3.3 KiB
C++
124 lines
3.3 KiB
C++
#pragma once
|
|
|
|
#include "types.hh"
|
|
#include "hash.hh"
|
|
#include "store-api.hh"
|
|
|
|
#include <map>
|
|
|
|
|
|
namespace nix {
|
|
|
|
|
|
/* Abstract syntax of derivations. */
|
|
|
|
struct DerivationOutput
|
|
{
|
|
StorePath path;
|
|
std::string hashAlgo; /* hash used for expected hash computation */
|
|
std::string hash; /* expected hash, may be null */
|
|
DerivationOutput(StorePath && path, std::string && hashAlgo, std::string && hash)
|
|
: path(std::move(path))
|
|
, hashAlgo(std::move(hashAlgo))
|
|
, hash(std::move(hash))
|
|
{ }
|
|
void parseHashType(bool & recursive, HashType & hashType) const;
|
|
void parseHashInfo(bool & recursive, Hash & hash) const;
|
|
};
|
|
|
|
typedef std::map<string, DerivationOutput> DerivationOutputs;
|
|
|
|
/* For inputs that are sub-derivations, we specify exactly which
|
|
output IDs we are interested in. */
|
|
typedef std::map<StorePath, StringSet> DerivationInputs;
|
|
|
|
typedef std::map<string, string> StringPairs;
|
|
|
|
// Bit:
|
|
// 7: regular vs ca
|
|
// 6: floating vs fixed hash if ca, regular always floating
|
|
// 5: pure vs impure if ca, regular always pure
|
|
// _: Unassigned
|
|
enum DerivationTypeAxis : uint8_t {
|
|
DtAxisCA = 0b10000000,
|
|
DtAxisFixed = 0b01000000,
|
|
DtAxisImpure = 0b00100000,
|
|
};
|
|
enum DerivationType : uint8_t {
|
|
DtRegular = 0b0000000,
|
|
DtCAFixed = 0b11100000,
|
|
};
|
|
|
|
struct BasicDerivation
|
|
{
|
|
DerivationOutputs outputs; /* keyed on symbolic IDs */
|
|
StorePathSet inputSrcs; /* inputs that are sources */
|
|
string platform;
|
|
Path builder;
|
|
Strings args;
|
|
StringPairs env;
|
|
|
|
BasicDerivation() { }
|
|
explicit BasicDerivation(const BasicDerivation & other);
|
|
virtual ~BasicDerivation() { };
|
|
|
|
/* Return the path corresponding to the output identifier `id' in
|
|
the given derivation. */
|
|
const StorePath & findOutput(const std::string & id) const;
|
|
|
|
bool isBuiltin() const;
|
|
|
|
/* Return true iff this is a fixed-output derivation. */
|
|
DerivationType type() const;
|
|
|
|
/* Return the output paths of a derivation. */
|
|
StorePathSet outputPaths() const;
|
|
|
|
};
|
|
|
|
struct Derivation : BasicDerivation
|
|
{
|
|
DerivationInputs inputDrvs; /* inputs that are sub-derivations */
|
|
|
|
/* Print a derivation. */
|
|
std::string unparse(const Store & store, bool maskOutputs,
|
|
std::map<std::string, StringSet> * actualInputs = nullptr) const;
|
|
|
|
Derivation() { }
|
|
Derivation(Derivation && other) = default;
|
|
explicit Derivation(const Derivation & other);
|
|
};
|
|
|
|
|
|
class Store;
|
|
|
|
|
|
/* Write a derivation to the Nix store, and return its path. */
|
|
StorePath writeDerivation(ref<Store> store,
|
|
const Derivation & drv, const string & name, RepairFlag repair = NoRepair);
|
|
|
|
/* Read a derivation from a file. */
|
|
Derivation readDerivation(const Store & store, const Path & drvPath);
|
|
|
|
// FIXME: remove
|
|
bool isDerivation(const string & fileName);
|
|
|
|
Hash hashDerivationModulo(Store & store, const Derivation & drv, bool maskOutputs);
|
|
|
|
/* Memoisation of hashDerivationModulo(). */
|
|
typedef std::map<StorePath, Hash> DrvHashes;
|
|
|
|
extern DrvHashes drvHashes; // FIXME: global, not thread-safe
|
|
|
|
bool wantOutput(const string & output, const std::set<string> & wanted);
|
|
|
|
struct Source;
|
|
struct Sink;
|
|
|
|
Source & readDerivation(Source & in, const Store & store, BasicDerivation & drv);
|
|
void writeDerivation(Sink & out, const Store & store, const BasicDerivation & drv);
|
|
|
|
std::string hashPlaceholder(const std::string & outputName);
|
|
|
|
}
|