a1dd396cc0
Conflicts: .gitignore Makefile doc/manual/installation.xml doc/manual/introduction.xml doc/manual/local.mk doc/manual/manual.xml doc/manual/nix-collect-garbage.xml doc/manual/nix-env.xml doc/manual/nix-install-package.xml doc/manual/nix-store.xml doc/manual/quick-start.xml doc/manual/release-notes.xml local.mk misc/emacs/nix-mode.el mk/functions.mk mk/install.mk mk/lib.mk mk/libraries.mk mk/patterns.mk mk/programs.mk nix.spec.in release.nix scripts/install-nix-from-closure.sh scripts/nix-build.in src/libexpr/eval-inline.hh src/libexpr/eval.cc src/libexpr/eval.hh src/libexpr/get-drvs.cc src/libexpr/nixexpr.cc src/libexpr/nixexpr.hh src/libexpr/parser.y src/libexpr/primops.cc src/libstore/local.mk src/nix-daemon/local.mk src/nix-env/nix-env.cc src/nix-env/user-env.cc src/nix-instantiate/nix-instantiate.cc src/nix-store/nix-store.cc tests/init.sh tests/nix-copy-closure.nix tests/remote-builds.nix version
94 lines
2.4 KiB
C++
94 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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}
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