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#pragma once
#include "types.hh"
#include "hash.hh"
#include <map>
namespace nix {
/* Extension of derivations in the Nix store. */
const string drvExtension = ".drv";
/* Abstract syntax of derivations. */
struct DerivationOutput
{
Path path;
string hashAlgo; /* hash used for expected hash computation */
string hash; /* expected hash, may be null */
DerivationOutput()
{
}
DerivationOutput(Path path, string hashAlgo, string hash)
{
this->path = path;
this->hashAlgo = hashAlgo;
this->hash = hash;
}
void parseHashInfo(bool & recursive, HashType & hashType, 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<Path, StringSet> DerivationInputs;
typedef std::map<string, string> StringPairs;
struct Derivation
{
DerivationOutputs outputs; /* keyed on symbolic IDs */
DerivationInputs inputDrvs; /* inputs that are sub-derivations */
PathSet inputSrcs; /* inputs that are sources */
string platform;
Path builder;
Strings args;
StringPairs env;
};
class StoreAPI;
/* Write a derivation to the Nix store, and return its path. */
Path writeDerivation(StoreAPI & store,
const Derivation & drv, const string & name, bool repair = false);
/* Read a derivation from a file. */
Derivation readDerivation(const Path & drvPath);
/* Print a derivation. */
string unparseDerivation(const Derivation & drv);
/* Check whether a file name ends with the extensions for
derivations. */
bool isDerivation(const string & fileName);
/* Return true iff this is a fixed-output derivation. */
bool isFixedOutputDrv(const Derivation & drv);
Hash hashDerivationModulo(StoreAPI & store, Derivation drv);
/* Memoisation of hashDerivationModulo(). */
typedef std::map<Path, Hash> DrvHashes;
extern DrvHashes drvHashes;
/* Split a string specifying a derivation and a set of outputs
(/nix/store/hash-foo!out1,out2,...) into the derivation path and
the outputs. */
typedef std::pair<string, std::set<string> > DrvPathWithOutputs;
DrvPathWithOutputs parseDrvPathWithOutputs(const string & s);
Path makeDrvPathWithOutputs(const Path & drvPath, const std::set<string> & outputs);
bool wantOutput(const string & output, const std::set<string> & wanted);
Merge branch 'nix'. This is a squashed commit of the following: commit 0dccab9f417b406f5d4aedc81900fc7b2f16c9f6 Author: Eelco Dolstra <eelco.dolstra@logicblox.com> Date: Thu Jul 2 00:30:16 2015 +0200 Typo commit 2cd28517b13524c242c7758783b0b2d8250fdded Author: Ludovic Courtès <ludo@gnu.org> Date: Wed Jul 1 14:56:34 2015 +0200 Preserve supplementary groups of build users The following patch is an attempt to address this bug (see <http://bugs.gnu.org/18994>) by preserving the supplementary groups of build users in the build environment. In practice, I would expect that supplementary groups would contain only one or two groups: the build users group, and possibly the “kvm” group. [Changed &at(0) to data() and removed tabs - Eelco] commit 6e38685ef65284093df79ebe7378bac33b0e7e5d Author: Eelco Dolstra <eelco.dolstra@logicblox.com> Date: Tue Jun 30 21:41:26 2015 +0200 GC: Handle ENOSPC creating/moving to the trash directory Issue #564. commit 5e0a9ae2e25a1016389f4893a6ed6682aadcf51d Author: Eelco Dolstra <eelco.dolstra@logicblox.com> Date: Mon Jun 22 15:54:55 2015 +0200 Use posix_fallocate to create /nix/var/nix/db/reserved commit 4e5ab98d6d14f8b0e3bd1d77b2f4f2354e7a49a8 Author: Eelco Dolstra <eelco.dolstra@logicblox.com> Date: Mon Jun 22 15:47:40 2015 +0200 Make /nix/var/nix/db/reserved bigger Issue #564. commit 60bda60fc06135aa97a93301b1a9e2270768f5b3 Author: Eelco Dolstra <eelco.dolstra@logicblox.com> Date: Wed Jun 10 16:17:06 2015 +0200 Export outputPaths function This is useful for the new hydra-queue-runner. commit 5dfea34048aa8541f20aeb2fbcd163561b609a49 Author: Eelco Dolstra <eelco.dolstra@logicblox.com> Date: Thu Jul 2 22:51:33 2015 +0200 Use std::vector::data() commit 2459458bc8257734ca78cb7a2db3df20bd730ec0 Author: Eelco Dolstra <eelco.dolstra@logicblox.com> Date: Thu Jun 4 16:04:41 2015 +0200 Allow substitutes for builds that have preferLocalBuild set Not substituting builds with "preferLocalBuild = true" was a bad idea, because it didn't take the cost of dependencies into account. For instance, if we can't substitute a fetchgit call, then we have to download/build git and all its dependencies. Partially reverts 5558652709f27e8a887580b77b93c705659d7a4b and adds a new derivation attribute "allowSubstitutes" to specify whether a derivation may be substituted.
7 years ago
PathSet outputPaths(const Derivation & drv);
}