/* GNU Guix --- Functional package management for GNU
   Copyright (C) 2016, 2017, 2018, 2019 Ludovic Courtès <ludo@gnu.org>

   This file is part of GNU Guix.

   GNU Guix is free software; you can redistribute it and/or modify it
   under the terms of the GNU General Public License as published by
   the Free Software Foundation; either version 3 of the License, or (at
   your option) any later version.

   GNU Guix is distributed in the hope that it will be useful, but
   WITHOUT ANY WARRANTY; without even the implied warranty of
   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
   GNU General Public License for more details.

   You should have received a copy of the GNU General Public License
   along with GNU Guix.  If not, see <http://www.gnu.org/licenses/>.  */

#include <builtins.hh>
#include <util.hh>
#include <globals.hh>

#include <unistd.h>
#include <cstdlib>

namespace nix {

static void builtinDownload(const Derivation &drv,
			    const std::string &drvPath,
			    const std::string &output)
{
    /* Invoke 'guix perform-download'.  */
    Strings args;
    args.push_back("perform-download");
    args.push_back(drvPath);

    /* Close all other file descriptors. */
    closeMostFDs(set<int>());

    const char *const argv[] =
      {
	  "guix", "perform-download", drvPath.c_str(), output.c_str(), NULL
      };

    /* Tell the script what the store file name is, so that
       'strip-store-file-name' (used for instance to determine the URL of
       content-addressed mirrors) works correctly.  */
    setenv("NIX_STORE", settings.nixStore.c_str(), 1);

    /* Tell it about options such as "print-extended-build-trace".  */
    setenv("_NIX_OPTIONS", settings.pack().c_str(), 1);

    const string program = settings.guixProgram;
    execv(program.c_str(), (char *const *) argv);

    throw SysError(format("failed to run download program '%1%'") % program);
}

static const std::map<std::string, derivationBuilder> builtins =
{
    { "download", builtinDownload }
};

derivationBuilder lookupBuiltinBuilder(const std::string & name)
{
    if (name.substr(0, 8) == "builtin:")
    {
	auto realName = name.substr(8);
	auto builder = builtins.find(realName);
	return builder == builtins.end() ? NULL : builder->second;
    }
    else
	return NULL;
}

std::list<std::string> builtinBuilderNames()
{
    std::list<std::string> result;
    for(auto&& iter: builtins)
    {
	result.push_back(iter.first);
    }
    return result;
}

}
or</th></tr>
<tr><td><span title='2020-01-31 17:06:16 +0100'>2020-01-31</span></td><td><a href='/guix/commit/gnu/ci.scm?id=2032d8473d11711b88fd3e48644c569dee32fa42'>ci: Cross-build for riscv64-linux-gnu.</a><span class='msg-avail'>...<span class='msg-tooltip'>* gnu/ci.scm (%cross-targets): Add "riscv64-linux-gnu".
</span></span></td><td>Ludovic Courtès</td></tr>
<tr><td><span title='2019-12-01 11:26:11 +0100'>2019-12-01</span></td><td><a href='/guix/commit/gnu/ci.scm?id=f71b0a0012d46bd30ead1a14ed58fd59647415e2'>ci: Make sure the Guix checkout is the one providing Cuirass proc.</a><span class='msg-avail'>...<span class='msg-tooltip'>Fixes &lt;https://bugs.gnu.org/36378&gt;.
Reported by Reza Alizadeh Majd &lt;r.majd@pantherx.org&gt;.

* build-aux/hydra/gnu-system.scm (find-current-checkout): New procedure.
(hydra-jobs): Use FIND-CURRENT-CHECKOUT to define CHECKOUT.  Pass it to the
inferior Guix as an extra argument whose key is 'superior-guix-checkout'.
* gnu/ci.scm (find-current-checkout): New procedure.
(hydra-jobs): Use FIND-CURRENT-CHECKOUT to define CHECKOUT.  This will return
'#f' if the current Guix is an inferior.  In that case, use the
'superior-guix-checkout' argument provided by the superior Guix.
</span></span></td><td>Clément Lassieur</td></tr>
<tr><td><span title='2019-11-13 23:26:35 +0100'>2019-11-13</span></td><td><a href='/guix/commit/gnu/ci.scm?id=887fd835a7c90f720d36a211478012547feaead0'>tests: "make check-system" uses Guix built with (guix self).</a><span class='msg-avail'>...<span class='msg-tooltip'>This is a followup to 7e6d8d366a61f951936ed83371877ce006f679f6.
It means that "make check-system" can run tests from (gnu tests install)
much faster because it does not need to build a full 'guix' package.

* gnu/ci.scm (channel-instance-&gt;package): Export.
* build-aux/run-system-tests.scm (tests-for-channel-instance): New
procedure, with code formerly in 'run-system-tests'.
(run-system-tests): Call 'interned-file' for SOURCE, and add call to
'tests-for-channel-instance'.
</span></span></td><td>Ludovic Courtès</td></tr>