#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);

PathSet outputPaths(const Derivation & drv);

}
657&amp;showmsg=1'>Expand</a>)</th><th class='left'>Author</th></tr>
Expand</a>)</th><th class='left'>Author</th></tr>
<tr><td><span title='2022-01-06 16:27:30 +0100'>2022-01-06</span></td><td><a href='/guix/commit/tests/minetest.scm?id=9f526f5dad5f4af69d158c50369e182305147f3b'>upstream: Support updating and fetching 'git-fetch' origins.</a><span class='msg-avail'>...</span></td><td>Sarah Morgensen</td></tr>
<tr><td><span title='2021-10-02 17:16:43 +0200'>2021-10-02</span></td><td><a href='/guix/commit/tests/minetest.scm?id=085a8a0cdfef7c414c92dcf2b0ea9aa970888a62'>import/minetest: Define an updater for mods on ContentDB.</a><span class='msg-avail'>...</span></td><td>Maxime Devos</td></tr>
<tr><td><span title='2021-09-28 22:00:47 +0200'>2021-09-28</span></td><td><a href='/guix/commit/tests/minetest.scm?id=2f5368d678aad334149b280e9dab90ec1635104b'>import: minetest: Fix typos.</a><span class='msg-avail'>...</span></td><td>Tobias Geerinckx-Rice</td></tr>
<tr><td><span title='2021-09-18 19:43:00 +0200'>2021-09-18</span></td><td><a href='/guix/commit/tests/minetest.scm?id=808f9ffbd3106da4c92d2367b118b98196c9e81e'>import: minetest: Strip "v" prefixes from the version number.</a><span class='msg-avail'>...</span></td><td>Maxime Devos</td></tr>
<tr><td><span title='2021-09-18 19:42:54 +0200'>2021-09-18</span></td><td><a href='/guix/commit/tests/minetest.scm?id=8480a2a5bb360b432877dd33dca80a61c5a698eb'>import: minetest: Delete duplicate dependencies.</a><span class='msg-avail'>...</span></td><td>Maxime Devos</td></tr>
<tr><td><span title='2021-09-18 19:41:15 +0200'>2021-09-18</span></td><td><a href='/guix/commit/tests/minetest.scm?id=8d4c0e3104fdee7d2548077f9c338008b3595853'>tests/minetest: Fix 'test-package*' indenting.</a><span class='msg-avail'>...</span></td><td>Maxime Devos</td></tr>
<tr><td><span title='2021-08-20 12:41:54 +0200'>2021-08-20</span></td><td><a href='/guix/commit/tests/minetest.scm?id=467e874a86dc3dd83fe10e5610823c011de6565a'>guix: Add ContentDB importer.</a><span class='msg-avail'>...</span></td><td>Maxime Devos</td></tr>