#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);

}
2e8bf00b76cb8&amp;showmsg=1'>Expand</a>)</th><th class='left'>Author</th></tr>
<tr><td><span title='2021-12-18 22:51:55 +0100'>2021-12-18</span></td><td><a href='/guix/commit/tests/elpa.scm?id=f21c70bc9a41d000acf7d39a0813a3c7415517ca'>import: elpa: Support ‘upstream-name’ property.</a><span class='msg-avail'>...<span class='msg-tooltip'>* guix/import/elpa.scm: (guix-package-&gt;elpa-name): New procedure.
  (latest-release): Use it.
* tests/elpa.scm ("guix-package-&gt;elpa-name: without 'upstream-name' property")
  ("guix-package-&gt;elpa-name: with 'upstream-name' property"): Test it.

Signed-off-by: Ludovic Courtès &lt;ludo@gnu.org&gt;
</span></span></td><td>Xinglu Chen</td></tr>
<tr><td><span title='2021-03-06 11:41:48 +0100'>2021-03-06</span></td><td><a href='/guix/commit/tests/elpa.scm?id=c05ceaf2b650d090cf39a048193505cb4e6bd257'>tests: do not hard code HTTP ports</a><span class='msg-avail'>...<span class='msg-tooltip'>Previously, test cases could fail if some process was listening
at a hard-coded port.  This patch eliminates most of these potential
failures, by automatically assigning an unbound port.  This should
allow for building multiple guix trees in parallel outside a build
container, though this is currently untested.

The test "home-page: Connection refused" in tests/lint.scm still
hardcodes port 9999, however.

* guix/tests/http.scm
  (http-server-can-listen?): remove now unused procedure.
  (%http-server-port): default to port 0, meaning the OS
  will automatically choose a port.
  (open-http-server-socket): remove the false statement claiming
  this procedure is exported and also return the allocated port
  number.
  (%local-url): raise an error if the port is obviously unbound.
  (call-with-http-server): set %http-server-port to the allocated
  port while the thunk is called.
* tests/derivations.scm: adjust test cases to use automatically
  assign a port.  As there is no risk of a port conflict now,
  do not make any tests conditional upon 'http-server-can-listen?'
  anymore.
* tests/elpa.scm: likewise.
* tests/lint.scm: likewise, and add a TODO comment about a port
  that is still hard-coded.
* tests/texlive.scm: likewise.

Signed-off-by: Ludovic Courtès &lt;ludo@gnu.org&gt;
</span></span></td><td>Maxime Devos</td></tr>
<tr><td><span title='2020-12-02 22:09:23 +0100'>2020-12-02</span></td><td><a href='/guix/commit/tests/elpa.scm?id=bea3b17739fc591b8cf6db1f8d28a6f6c9585577'>import: utils: 'recursive-import' accepts an optional version parameter.</a><span class='msg-avail'>...<span class='msg-tooltip'>This adds a key VERSION to 'recursive-import' and moves the parameter REPO to
a key. This also changes all the places that rely on 'recursive-import'.

* guix/import/utils.scm (recursive-import): Add the VERSION key. Make REPO a
  key.
  (package-&gt;definition): Add optional 'append-version?'.
* guix/scripts/import/crate.scm (guix-import-crate): Add the VERSION key.
* guix/import/crate.scm (crate-&gt;guix-package): Add the VERSION key.
  (crate-recursive-import): Pass VERSION to recursive-import, remove now
  unnecessary code.
* guix/import/cran.scm (cran-&gt;guix-package, cran-recursive-import): Change the
  REPO parameter to a key.
* guix/import/elpa.scm (elpa-&gt;guix-package, elpa-recursive-import): Likewise.
* guix/import/gem.scm (gem-&gt;guix-package, recursive-import): Likewise.
* guix/import/opam.scm (opam-recurive-import): Likewise.
* guix/import/pypi.scm (pypi-recursive-import): Likewise.
* guix/import/stackage.scm (stackage-recursive-import): Likewise.
* guix/scripts/import/cran.scm (guix-import-cran): Likewise.
* guix/scripts/import/elpa.scm (guix-import-elpa): Likewise.
* tests/elpa.scm (eval-test-with-elpa): Likewise.
* tests/import-utils.scm (recursive-import): Likewise.

Co-authored-by: Hartmut Goebel &lt;h.goebel@crazy-compilers.com&gt;
</span></span></td><td>Martin Becze</td></tr>
<tr><td><span title='2020-01-16 23:14:05 +0100'>2020-01-16</span></td><td><a href='/guix/commit/tests/elpa.scm?id=9d6c6cb20ef240221fc9a8e155f4bfa53e71bce4'>import: elpa: Rewrite test to use an HTTP server instead of mocking.</a><span class='msg-avail'>...<span class='msg-tooltip'>* guix/import/elpa.scm (elpa-url): Add 'gnu/http'.
(elpa-&gt;guix-package): Handle it.
* tests/elpa.scm (elpa-package-info-mock, auctex-readme-mock)
(elpa-version-&gt;string, package-source-url, ensure-list)
(package-home-page, make-elpa-package): Remove.
&lt;top level&gt;: Call '%http-server-port'.
(eval-test-with-elpa): Remove uses of 'mock'.  Use 'with-http-server'
and parameterize 'current-http-proxy' instead.
</span></span></td><td>Ludovic Courtès</td></tr>