Eliminate the "store" global variable

Also, move a few free-standing functions into StoreAPI and Derivation.

Also, introduce a non-nullable smart pointer, ref<T>, which is just a
wrapper around std::shared_ptr ensuring that the pointer is never
null. (For reference-counted values, this is better than passing a
"T&", because the latter doesn't maintain the refcount. Usually, the
caller will have a shared_ptr keeping the value alive, but that's not
always the case, e.g., when passing a reference to a std::thread via
std::bind.)

1 files changed, 0 insertions, 40 deletions

diff --git a/src/libstore/misc.hh b/src/libstore/misc.hh
deleted file mode 100644
index 495c528750fb..000000000000
--- a/src/libstore/misc.hh
+++ /dev/null
@@ -1,40 +0,0 @@
-#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 BasicDerivation & drv);
-
-bool substitutesAllowed(const BasicDerivation & drv);
-
-
-}