#pragma once

#include "derivations.hh"


namespace nix {


/* Read a derivation, after ensuring its existence through
   ensurePath(). */
Derivation derivationFromPath(StoreAPI & store, const Path & drvPath);

/* Place in `paths' the set of all store paths in the file system
   closure of `storePath'; that is, all paths than can be directly or
   indirectly reached from it.  `paths' is not cleared.  If
   `flipDirection' is true, the set of paths that can reach
   `storePath' is returned; that is, the closures under the
   `referrers' relation instead of the `references' relation is
   returned. */
void computeFSClosure(StoreAPI & store, const Path & path,
    PathSet & paths, bool flipDirection = false,
    bool includeOutputs = false, bool includeDerivers = false);

/* Return the path corresponding to the output identifier `id' in the
   given derivation. */
Path findOutput(const Derivation & drv, string id);

/* Given a set of paths that are to be built, return the set of
   derivations that will be built, and the set of output paths that
   will be substituted. */
void queryMissing(StoreAPI & store, const PathSet & targets,
    PathSet & willBuild, PathSet & willSubstitute, PathSet & unknown,
    unsigned long long & downloadSize, unsigned long long & narSize);

bool willBuildLocally(const Derivation & drv);

bool substitutesAllowed(const Derivation & drv);


}
8e29b57a6c7a8574df1a'>commit</a><a href='/guix/diff/?id=280e9c2a26978474b13e8e29b57a6c7a8574df1a'>diff</a></td><td class='form'><form class='right' method='get' action='/guix/log/'>
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<tr><th>author</th><td>Ludovic Courtès &lt;ludo@gnu.org&gt;</td><td class='right'>2019-01-25 23:25:03 +0100</td></tr>
<tr><th>committer</th><td>Ludovic Courtès &lt;ludo@gnu.org&gt;</td><td class='right'>2019-01-26 00:06:55 +0100</td></tr>
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<tr><th>parent</th><td colspan='2' class='oid'><a href='/guix/commit/?id=1379319fe7724d6cf077dc205f06c8cc179de943'>1379319fe7724d6cf077dc205f06c8cc179de943</a> (<a href='/guix/diff/?id=280e9c2a26978474b13e8e29b57a6c7a8574df1a&amp;id2=1379319fe7724d6cf077dc205f06c8cc179de943'>diff</a>)</td></tr><tr><th>download</th><td colspan='2' class='oid'><a href='/guix/snapshot/guix-280e9c2a26978474b13e8e29b57a6c7a8574df1a.tar.gz'>guix-280e9c2a26978474b13e8e29b57a6c7a8574df1a.tar.gz</a><br/><a href='/guix/snapshot/guix-280e9c2a26978474b13e8e29b57a6c7a8574df1a.zip'>guix-280e9c2a26978474b13e8e29b57a6c7a8574df1a.zip</a><br/></td></tr></table>
<div class='commit-subject'>doc: Update bit about GUIX_LD_WRAPPER_ALLOW_IMPURITIES.</div><div class='commit-msg'>This is a followup to d0a2db47fb550d684c47a0ae3b541a9a71727d9e.

* doc/guix.texi (Application Setup)[The GCC toolchain]: Adjust bit
about GUIX_LD_WRAPPER_ALLOW_IMPURITIES.
</div><div class='diffstat-header'><a href='/guix/diff/?id=280e9c2a26978474b13e8e29b57a6c7a8574df1a'>Diffstat</a></div><table summary='diffstat' class='diffstat'>-02-06</span></td><td><a href='/guix/commit/gnu/packages/tcl.scm?id=9cc03bbf0d1a9f7eef77164a59a4ea768db91e97'>gnu: expect: Update to 5.45.4.</a><span class='msg-avail'>...</span></td><td>Tobias Geerinckx-Rice</td></tr>
<tr><td><span title='2017-12-19 01:42:40 +0100'>2017-12-19</span></td><td><a href='/guix/commit/gnu/packages/tcl.scm?id=32cd878be0bb7e153fcaa6f3bfa2632867390ff9'>Merge branch 'master' into core-updates</a></td><td>Marius Bakke</td></tr>
<tr><td><span title='2017-12-18 23:25:20 +0100'>2017-12-18</span></td><td><a href='/guix/commit/gnu/packages/tcl.scm?id=8e9b3c6647ea0a47142cc35704cc18acd5e105c4'>gnu: expect: Update to 5.45.3.</a><span class='msg-avail'>...</span></td><td>Marius Bakke</td></tr>
<tr><td><span title='2017-12-13 07:30:13 +0100'>2017-12-13</span></td><td><a href='/guix/commit/gnu/packages/tcl.scm?id=1004a92c7201284a801e5c8be399e8852fc238be'>gnu: tcl: Use 'modify-phases' syntax.</a><span class='msg-avail'>...</span></td><td>Marius Bakke</td></tr>
<tr><td><span title='2017-12-13 07:26:42 +0100'>2017-12-13</span></td><td><a href='/guix/commit/gnu/packages/tcl.scm?id=f7c03e452b25b86123e0a9478fdb5541f259ddee'>gnu: tcl, tk: Update to 8.6.7.</a><span class='msg-avail'>...</span></td><td>Marius Bakke</td></tr>
<tr><td><span title='2017-11-07 18:50:46 +0300'>2017-11-07</span></td><td><a href='/guix/commit/gnu/packages/tcl.scm?id=ad54924285e204f983a5dd6d8ebe56b5607f1de9'>gnu: expect: Change home-page to http://expect.sourceforge.net/.</a><span class='msg-avail'>...</span></td><td>Oleg Pykhalov</td></tr>