/* GNU Guix --- Functional package management for GNU
   Copyright (C) 2016, 2017 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/>.  */

/* Interface to built-in derivation builders.  */

#pragma once

#include <derivations.hh>
#include <map>
#include <string>

namespace nix {

    inline bool isBuiltin(const Derivation & drv)
    {
	return string(drv.builder, 0, 8) == "builtin:";
    }

    /* Build DRV, which lives at DRVPATH.  */
    typedef void (*derivationBuilder) (const Derivation &drv,
				       const std::string &drvPath,
				       const std::string &output);

    /* Return the built-in builder called BUILDER, or NULL if none was
       found.  */
    derivationBuilder lookupBuiltinBuilder(const std::string &builder);

    /* Return the list of supported built-in builder names.  */
    std::list<std::string> builtinBuilderNames();
}
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<div class='path'>path: <a href='/guix/log/?id=0fccd15f7895e86982ee30097bb1349fff3accb4'>root</a>/<a href='/guix/log/gnu?id=0fccd15f7895e86982ee30097bb1349fff3accb4'>gnu</a>/<a href='/guix/log/gnu/packages?id=0fccd15f7895e86982ee30097bb1349fff3accb4'>packages</a>/<a href='/guix/log/gnu/packages/rails.scm?id=0fccd15f7895e86982ee30097bb1349fff3accb4'>rails.scm</a></div><div class='content'><table class='list nowrap'><tr class='nohover'><th class='left'>Age</th><th class='left'>Commit message (<a href='/guix/log/gnu/packages/rails.scm?id=0fccd15f7895e86982ee30097bb1349fff3accb4&amp;showmsg=1'>Expand</a>)</th><th class='left'>Author</th></tr>
<tr><td><span title='2017-08-11 00:21:00 +0200'>2017-08-11</span></td><td><a href='/guix/commit/gnu/packages/rails.scm?id=eec0c587af5fbc2854104c4f540cf8982dab806b'>gnu: ruby-debug-inspector: Update to 0.0.3.</a><span class='msg-avail'>...<span class='msg-tooltip'>* gnu/packages/ruby.scm (ruby-debug-inspector): Update to 0.0.3.
</span></span></td><td>Tobias Geerinckx-Rice</td></tr>
<tr><td><span title='2016-08-10 15:36:33 +1000'>2016-08-10</span></td><td><a href='/guix/commit/gnu/packages/rails.scm?id=29f49403a9b34899a5eeeffac3cca50217955c4f'>gnu: ruby-spring: Update to 1.7.2.</a><span class='msg-avail'>...<span class='msg-tooltip'>* gnu/packages/rails.scm (ruby-spring): Update to 1.7.2.
</span></span></td><td>Ben Woodcroft</td></tr>
<tr><td><span title='2016-06-04 09:16:07 +1000'>2016-06-04</span></td><td><a href='/guix/commit/gnu/packages/rails.scm?id=3aeb6e1d1acfeeae61739fbaeeb6e94848557436'>gnu: Add ruby-spring.</a><span class='msg-avail'>...<span class='msg-tooltip'>* gnu/packages/rails.scm (ruby-spring): New variable.
</span></span></td><td>Matthew Jordan</td></tr>
<tr><td><span title='2016-06-04 09:15:57 +1000'>2016-06-04</span></td><td><a href='/guix/commit/gnu/packages/rails.scm?id=90322fdbe3c60a039224ceded296fc772f4b642e'>gnu: Add ruby-debug-inspector.</a><span class='msg-avail'>...<span class='msg-tooltip'>* gnu/local.mk (GNU_SYSTEM_MODULES): Add it.
* gnu/packages/rails.scm: New file.
</span></span></td><td>Matthew Jordan</td></tr>