322eeb87d0
This is a squashed commit of the following: commit0dccab9f41Author: Eelco Dolstra <eelco.dolstra@logicblox.com> Date: Thu Jul 2 00:30:16 2015 +0200 Typo commit2cd28517b1Author: 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] commit6e38685ef6Author: 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. commit5e0a9ae2e2Author: 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 commit4e5ab98d6dAuthor: Eelco Dolstra <eelco.dolstra@logicblox.com> Date: Mon Jun 22 15:47:40 2015 +0200 Make /nix/var/nix/db/reserved bigger Issue #564. commit60bda60fc0Author: 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. commit5dfea34048Author: Eelco Dolstra <eelco.dolstra@logicblox.com> Date: Thu Jul 2 22:51:33 2015 +0200 Use std::vector::data() commit2459458bc8Author: 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 reverts5558652709and adds a new derivation attribute "allowSubstitutes" to specify whether a derivation may be substituted.
95 lines
2.4 KiB
C++
95 lines
2.4 KiB
C++
#pragma once
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#include "types.hh"
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#include "hash.hh"
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#include <map>
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namespace nix {
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/* Extension of derivations in the Nix store. */
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const string drvExtension = ".drv";
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/* Abstract syntax of derivations. */
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struct DerivationOutput
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{
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Path path;
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string hashAlgo; /* hash used for expected hash computation */
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string hash; /* expected hash, may be null */
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DerivationOutput()
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{
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}
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DerivationOutput(Path path, string hashAlgo, string hash)
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{
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this->path = path;
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this->hashAlgo = hashAlgo;
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this->hash = hash;
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}
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void parseHashInfo(bool & recursive, HashType & hashType, Hash & hash) const;
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};
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typedef std::map<string, DerivationOutput> DerivationOutputs;
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/* For inputs that are sub-derivations, we specify exactly which
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output IDs we are interested in. */
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typedef std::map<Path, StringSet> DerivationInputs;
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typedef std::map<string, string> StringPairs;
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struct Derivation
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{
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DerivationOutputs outputs; /* keyed on symbolic IDs */
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DerivationInputs inputDrvs; /* inputs that are sub-derivations */
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PathSet inputSrcs; /* inputs that are sources */
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string platform;
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Path builder;
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Strings args;
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StringPairs env;
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};
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class StoreAPI;
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/* Write a derivation to the Nix store, and return its path. */
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Path writeDerivation(StoreAPI & store,
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const Derivation & drv, const string & name, bool repair = false);
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/* Read a derivation from a file. */
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Derivation readDerivation(const Path & drvPath);
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/* Print a derivation. */
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string unparseDerivation(const Derivation & drv);
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/* Check whether a file name ends with the extensions for
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derivations. */
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bool isDerivation(const string & fileName);
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/* Return true iff this is a fixed-output derivation. */
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bool isFixedOutputDrv(const Derivation & drv);
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Hash hashDerivationModulo(StoreAPI & store, Derivation drv);
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/* Memoisation of hashDerivationModulo(). */
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typedef std::map<Path, Hash> DrvHashes;
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extern DrvHashes drvHashes;
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/* Split a string specifying a derivation and a set of outputs
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(/nix/store/hash-foo!out1,out2,...) into the derivation path and
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the outputs. */
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typedef std::pair<string, std::set<string> > DrvPathWithOutputs;
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DrvPathWithOutputs parseDrvPathWithOutputs(const string & s);
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Path makeDrvPathWithOutputs(const Path & drvPath, const std::set<string> & outputs);
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bool wantOutput(const string & output, const std::set<string> & wanted);
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PathSet outputPaths(const Derivation & drv);
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}
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