Move `StorePathWithOutput` utilities out of store class

These are by no means part of the notion of a store, but rather are
things that happen to use stores. (Or put another way, there's no way
we'd make them virtual methods any time soon.) It's better to move them
out of that too-big class then.

Also, this helps us remove StorePathWithOutputs from the Store interface
altogether next commit.

1 files changed, 9 insertions, 0 deletions

diff --git a/src/libstore/path-with-outputs.hh b/src/libstore/path-with-outputs.hh
index a9e3fc7c2..0e34b5aa1 100644
--- a/src/libstore/path-with-outputs.hh
+++ b/src/libstore/path-with-outputs.hh
@@ -14,4 +14,13 @@ struct StorePathWithOutputs
 
 std::pair<std::string_view, StringSet> parsePathWithOutputs(std::string_view s);
 
+class Store;
+
+/* Split a string specifying a derivation and a set of outputs
+   (/nix/store/hash-foo!out1,out2,...) into the derivation path
+   and the outputs. */
+StorePathWithOutputs parsePathWithOutputs(const Store & store, std::string_view pathWithOutputs);
+
+StorePathWithOutputs followLinksToStorePathWithOutputs(const Store & store, std::string_view pathWithOutputs);
+
 }