#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);


}
x-style.sh?id=add66292debb3048a8b5b7cfbfb5039115b4c4f1'>commit</a><a href='/guix/diff/tests/guix-style.sh?id=add66292debb3048a8b5b7cfbfb5039115b4c4f1'>diff</a></td><td class='form'><form class='right' method='get' action='/guix/log/tests/guix-style.sh'>
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<div class='path'>path: <a href='/guix/log/?id=add66292debb3048a8b5b7cfbfb5039115b4c4f1'>root</a>/<a href='/guix/log/tests?id=add66292debb3048a8b5b7cfbfb5039115b4c4f1'>tests</a>/<a href='/guix/log/tests/guix-style.sh?id=add66292debb3048a8b5b7cfbfb5039115b4c4f1'>guix-style.sh</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/tests/guix-style.sh?id=add66292debb3048a8b5b7cfbfb5039115b4c4f1&amp;showmsg=1'>Expand</a>)</th><th class='left'>Author</th></tr>
<tr><td><span title='2022-08-08 11:53:33 +0200'>2022-08-08</span></td><td><a href='/guix/commit/tests/guix-style.sh?id=a15542d26df42dabdb5e2f76d150ae200230c3b0'>style: Add '--whole-file' option.</a><span class='msg-avail'>...</span></td><td>Ludovic Courtès</td></tr>