#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);

}
x-repl.sh?id=f056d4f168e18c764ba586de960c00f531ac6d65&amp;showmsg=1'>Expand</a>)</th><th class='left'>Author</th></tr>
<tr><td><span title='2020-09-16 16:04:01 +0200'>2020-09-16</span></td><td><a href='/guix/commit/tests/guix-repl.sh?id=d7f7ed39be3be926b3c46c0ea15d416c593ef61f'>repl: Look for script files in (getcwd).</a><span class='msg-avail'>...<span class='msg-tooltip'>Fixes &lt;https://bugs.gnu.org/43331&gt;.

* guix/scripts/repl.scm (guix-repl): Replace "." by (getcwd)
* tests/guix-repl.sh: Add test.

Co-authored-by: Ludovic Courtès &lt;ludo@gnu.org&gt;
</span></span></td><td>Konrad Hinsen</td></tr>
<tr><td><span title='2020-06-14 23:02:36 +0200'>2020-06-14</span></td><td><a href='/guix/commit/tests/guix-repl.sh?id=c924e541390f9595d819edc33c19d979917c15ec'>guix repl: Add script execution.</a><span class='msg-avail'>...<span class='msg-tooltip'>* guix/scripts/repl.scm: Add filename options for script execution.
* doc/guix.texi (Invoking guix repl): Document it.
* tests/guix-repl.sh: Test it.
* Makefile.am: (SH_TESTS): Add it.

Signed-off-by: Ludovic Courtès &lt;ludo@gnu.org&gt;
</span></span></td><td>Konrad Hinsen</td></tr>