#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);

}
t'><table class='list nowrap'><tr class='nohover'><th class='left'>Age</th><th class='left'>Commit message (<a href='/guix/log/doc/htmlxref.cnf?id=1c0ec4c69c4cdcff96bcb70bbaf98dd1abbce08e'>Collapse</a>)</th><th class='left'>Author</th></tr>
<tr class='logheader'><td><span title='2022-12-18 16:01:32 +0100'>2022-12-18</span></td><td class='logsubject'><a href='/guix/commit/doc/htmlxref.cnf?id=8e2f32cee982d42a79e53fc1e9aa7b8ff0514714'>doc: Update URLs for the manual and cookbook translations.</a></td><td>Ludovic Courtès</td></tr>
<tr class='nohover-highlight'><td/><td colspan='3' class='logmsg'>
* doc/htmlxref.cnf: Update URLs for "guix" and "guix-cookbook".


</td></tr>
<tr class='logheader'><td><span title='2022-12-18 15:53:43 +0100'>2022-12-18</span></td><td class='logsubject'><a href='/guix/commit/doc/htmlxref.cnf?id=b77b4c7c3a5ac180f5aed0983be50ffbe6832f87'>doc: Add guile-netlink to 'htmlxref.cnf'.</a></td><td>Ludovic Courtès</td></tr>
<tr class='nohover-highlight'><td/><td colspan='3' class='logmsg'>
* doc/htmlxref.cnf: Add guile-netlink.


</td></tr>
<tr class='logheader'><td><span title='2022-08-05 00:14:29 +0200'>2022-08-05</span></td><td class='logsubject'><a href='/guix/commit/doc/htmlxref.cnf?id=f9a267c6d266355b48bd12288f4414eaf4db8b33'>doc: Fix Guix manual URLs in 'htmlxref.cnf'.</a></td><td>Ludovic Courtès</td></tr>
<tr class='nohover-highlight'><td/><td colspan='3' class='logmsg'>
Fixes a regression introduced in
868da34d54365023223a4ff7520043ba55ad64e8.

* doc/htmlxref.cnf (GUIX): Remove "/guix".


</td></tr>
<tr class='logheader'><td><span title='2022-06-16 21:52:49 -0400'>2022-06-16</span></td><td class='logsubject'><a href='/guix/commit/doc/htmlxref.cnf?id=ec7a75034421654d2ece2ba20033b44d345547f0'>doc: Remove obsolete comment from htmlxref.cnf.</a></td><td>Maxim Cournoyer</td></tr>
<tr class='nohover-highlight'><td/><td colspan='3' class='logmsg'>
This is follow up to &lt;https://issues.guix.gnu.org/55290&gt;.

* doc/htmlxref.cnf (geiser): Delete obsolete comment.


</td></tr>
<tr class='logheader'><td><span title='2022-04-08 19:59:25 +0200'>2022-04-08</span></td><td class='logsubject'><a href='/guix/commit/doc/htmlxref.cnf?id=868da34d54365023223a4ff7520043ba55ad64e8'>doc: Fix cookbook URLs in htmlxref.cnf.</a></td><td>Ludovic Courtès</td></tr>
<tr class='nohover-highlight'><td/><td colspan='3' class='logmsg'>
Reported by Greg Hogan &lt;code@greghogan.com&gt;.

* doc/htmlxref.cnf (GUIX_ROOT): New variable.
(GUIX, GUIX_COOKBOOK): Adjust.


</td></tr>
<tr class='logheader'><td><span title='2021-10-04 16:36:58 +0200'>2021-10-04</span></td><td class='logsubject'><a href='/guix/commit/doc/htmlxref.cnf?id=1267c2e9efdb6e324ce1c7b1fcef242f8208a61f'>doc: Update htmlxref.cnf.</a></td><td>Sarah Morgensen</td></tr>
<tr class='nohover-highlight'><td/><td colspan='3' class='logmsg'>
Update and fix broken references to cuirass, git, and guix-cookbook.

* doc/htmlxref.cnf: Update from Texinfo.  Factorize Guix manuals.
(cuirass, git, guix-cookbook, guix-cookbook.de, guix-cookbook.fr): New
entries.

Signed-off-by: Ludovic Courtès &lt;ludo@gnu.org&gt;


</td></tr>
<tr class='logheader'><td><span title='2021-04-24 16:46:22 +0200'>2021-04-24</span></td><td class='logsubject'><a href='/guix/commit/doc/htmlxref.cnf?id=1ebd086286c3825cfae31e75f8394986f1a18736'>doc: Fix cross-reference URL to translated manual.</a></td><td>Julien Lepiller</td></tr>
<tr class='nohover-highlight'><td/><td colspan='3' class='logmsg'>
* doc/htmlxref.cnf: Fix translated manual URL.


</td></tr>