From 58cdab64acd4807f73768fb32acdde39b501799f Mon Sep 17 00:00:00 2001 From: regnat Date: Thu, 8 Oct 2020 17:36:51 +0200 Subject: Store metadata about drv outputs realisations MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit For each known realisation, store: - its output - its output path This comes with a set of needed changes: - New `realisations` module declaring the types needed for describing these mappings - New `Store::registerDrvOutput` method registering all the needed informations about a derivation output (also replaces `LocalStore::linkDeriverToPath`) - new `Store::queryRealisation` method to retrieve the informations for a derivations This introcudes some redundancy on the remote-store side between `wopQueryDerivationOutputMap` and `wopQueryRealisation`. However we might need to keep both (regardless of backwards compat) because we sometimes need to get some infos for all the outputs of a derivation (where `wopQueryDerivationOutputMap` is handy), but all the stores can't implement it − because listing all the outputs of a derivation isn't really possible for binary caches where the server doesn't allow to list a directory. --- src/libstore/worker-protocol.hh | 5 +++++ 1 file changed, 5 insertions(+) (limited to 'src/libstore/worker-protocol.hh') diff --git a/src/libstore/worker-protocol.hh b/src/libstore/worker-protocol.hh index 63bd6ea49..f2cdc7ca3 100644 --- a/src/libstore/worker-protocol.hh +++ b/src/libstore/worker-protocol.hh @@ -1,5 +1,8 @@ #pragma once +#include "store-api.hh" +#include "serialise.hh" + namespace nix { @@ -50,6 +53,8 @@ typedef enum { wopAddToStoreNar = 39, wopQueryMissing = 40, wopQueryDerivationOutputMap = 41, + wopRegisterDrvOutput = 42, + wopQueryRealisation = 43, } WorkerOp; -- cgit v1.2.3