#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);

bool willBuildLocally(const Derivation & drv);

bool substitutesAllowed(const Derivation & drv);


}
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<div class='path'>path: <a href='/guix/log/?id=98908e0777889aeec2796dbdc4f0809a1898dd3b'>root</a>/<a href='/guix/log/gnu?id=98908e0777889aeec2796dbdc4f0809a1898dd3b'>gnu</a>/<a href='/guix/log/gnu/home?id=98908e0777889aeec2796dbdc4f0809a1898dd3b'>home</a>/<a href='/guix/log/gnu/home/services?id=98908e0777889aeec2796dbdc4f0809a1898dd3b'>services</a>/<a href='/guix/log/gnu/home/services/syncthing.scm?id=98908e0777889aeec2796dbdc4f0809a1898dd3b'>syncthing.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/home/services/syncthing.scm?id=98908e0777889aeec2796dbdc4f0809a1898dd3b&amp;showmsg=1'>Expand</a>)</th><th class='left'>Author</th></tr>
<tr><td><span title='2023-08-29 11:42:16 +0200'>2023-08-29</span></td><td><a href='/guix/commit/gnu/home/services/syncthing.scm?id=cf6abf50dbbbd95fef465ab4bb3b608843ac47e1'>home: services: dicod, syncthing: Import (gnu home services shepherd).</a><span class='msg-avail'>...<span class='msg-tooltip'>Fixes &lt;https://issues.guix.gnu.org/65510&gt;.

Without this import, 'shepherd-service-type' is not mapped, leading to
an error about missing 'system' target.

* gnu/home/services/dict.scm,
gnu/home/services/syncthing.scm: Add #:use-module clause.

Reported-by: Morgan Smith &lt;Morgan.J.Smith@outlook.com&gt;
</span></span></td><td>Ludovic Courtès</td></tr>
<tr><td><span title='2023-08-20 22:48:48 +0200'>2023-08-20</span></td><td><a href='/guix/commit/gnu/home/services/syncthing.scm?id=7605c01fccb20b387f5a0d98d6b81074b3039e23'>home: services: Add Syncthing.</a><span class='msg-avail'>...<span class='msg-tooltip'>* gnu/home/services/syncthing.scm: New file.
* gnu/local.mk (GNU_SYSTEM_MODULES): Add it.
* gnu/services/syncthing.scm (&lt;syncthing-configuration&gt;)[home-service?]:
New field.
Adjust 'provision' and 'requirement' depending on 'home-service?', and
likewise for #:user and #:group.
Use 'filter' + 'negate' instead of 'remove'.
* doc/guix.texi (Networking Services): Add note and cross-reference to
"Networking Home Services".
(Networking Home Services): New node.
</span></span></td><td>Ludovic Courtès</td></tr>