/* GNU Guix --- Functional package management for GNU
   Copyright (C) 2016-2019, 2023 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 },
    { "git-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;
}

}
ft'>Author</th></tr>
<tr><td><span title='2023-05-31 23:50:06 +0200'>2023-05-31</span></td><td><a href='/guix/commit/tests/pypi.scm?id=654fcf9971bb01389d577be07c6ec0f68940c743'>tests: Use quasiquoted 'match' patterns for package sexps.</a><span class='msg-avail'>...</span></td><td>Ludovic Courtès</td></tr>
<tr><td><span title='2023-05-31 23:25:24 +0200'>2023-05-31</span></td><td><a href='/guix/commit/tests/pypi.scm?id=e6223017d95bc615b2648f0798d9a3904d5b5f57'>upstream: Replace 'input-changes' field by 'inputs'.</a><span class='msg-avail'>...</span></td><td>Ludovic Courtès</td></tr>
<tr><td><span title='2023-05-31 23:25:24 +0200'>2023-05-31</span></td><td><a href='/guix/commit/tests/pypi.scm?id=d2f36abd02088cdf1ceb26de2de9c2b33f50c09e'>tests: pypi: Rewrite tests using a local HTTP server.</a><span class='msg-avail'>...</span></td><td>Ludovic Courtès</td></tr>
<tr><td><span title='2023-05-31 23:25:24 +0200'>2023-05-31</span></td><td><a href='/guix/commit/tests/pypi.scm?id=58da6b297c2696651d4c069678be0d2188eaec92'>tests: pypi: Factorize tarball and wheel file creation.</a><span class='msg-avail'>...</span></td><td>Ludovic Courtès</td></tr>
<tr><td><span title='2023-04-30 22:30:49 +0200'>2023-04-30</span></td><td><a href='/guix/commit/tests/pypi.scm?id=1ad52e2eebbd19963319a8530d413b1956ec5de7'>import: pypi: Adjust tests for new build system.</a><span class='msg-avail'>...</span></td><td>Ludovic Courtès</td></tr>
<tr><td><span title='2022-02-11 23:51:39 +0100'>2022-02-11</span></td><td><a href='/guix/commit/tests/pypi.scm?id=0f1cb023628d738bb21425c1921d17672db4f890'>tests: Adjust pypi test to recent changes.</a><span class='msg-avail'>...</span></td><td>Ludovic Courtès</td></tr>
<tr><td><span title='2022-01-26 17:54:58 +0100'>2022-01-26</span></td><td><a href='/guix/commit/tests/pypi.scm?id=bac9f8302c65802a576f733cc48829edb33019d8'>import: pypi: Convert hyphens to underscores in PyPI URLs if needed.</a><span class='msg-avail'>...</span></td><td>Vivien Kraus</td></tr>
<tr><td><span title='2021-11-18 22:56:10 +0100'>2021-11-18</span></td><td><a href='/guix/commit/tests/pypi.scm?id=bcff9d6388dc1cad38fbfb3983f97f52d0533301'>tests: Adjust opam and pypi tests to simplified inputs.</a><span class='msg-avail'>...</span></td><td>Ludovic Courtès</td></tr>
<tr><td><span title='2021-11-17 23:43:14 +0100'>2021-11-17</span></td><td><a href='/guix/commit/tests/pypi.scm?id=3a317f7476f8c6012e166ff9f340f861938721c9'>Merge branch 'master' into core-updates-frozen</a></td><td>Ludovic Courtès</td></tr>
<tr><td><span title='2021-11-11 00:14:30 +0100'>2021-11-11</span></td><td><a href='/guix/commit/tests/pypi.scm?id=b20cd80ff1f3c9eb988a0cc27ed9538b68914608'>import: pypi: Allow imports of a specific version.</a><span class='msg-avail'>...</span></td><td>Ludovic Courtès</td></tr>
<tr><td><span title='2021-10-12 17:46:23 +0000'>2021-10-12</span></td><td><a href='/guix/commit/tests/pypi.scm?id=a1eca979fb8da842e73c42f4f53be29b169810f2'>Merge remote-tracking branch 'origin/master' into core-updates-frozen.</a></td><td>Mathieu Othacehe</td></tr>
<tr><td><span title='2021-09-30 23:44:49 +0200'>2021-09-30</span></td><td><a href='/guix/commit/tests/pypi.scm?id=7b75f90c5b0da896c486cae23d19d43e2a03bb56'>import: pypi: Honor the 'upstream-name' package property.</a><span class='msg-avail'>...</span></td><td>Xinglu Chen</td></tr>
<tr><td><span title='2021-07-11 00:49:15 +0200'>2021-07-11</span></td><td><a href='/guix/commit/tests/pypi.scm?id=52a9a0712abb2a2b02e5747d118fecff95d92366'>import: pypi: Emit new-style package inputs.</a><span class='msg-avail'>...</span></td><td>Ludovic Courtès</td></tr>
<tr><td><span title='2020-07-25 19:11:36 +0200'>2020-07-25</span></td><td><a href='/guix/commit/tests/pypi.scm?id=6a79eed920fd4914b162461553a8d7e8f5eee324'>utils: Remove compatibility re-export of 'memoize'.</a><span class='msg-avail'>...</span></td><td>Ludovic Courtès</td></tr>