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nix copy: Add --profile flag

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This allows `nix copy` to atomically copy a store path and point a
profile to it, without the risk that the store path might be GC'ed in
between. This is useful for instance when deploying a new NixOS system
profile from a remote store.
This commit is contained in:
Eelco Dolstra 2024-10-08 15:28:49 +02:00
parent 26c3fc11ea
commit 76f75e7691
9 changed files with 53 additions and 27 deletions
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12
src/libcmd/command.hh
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@ -238,7 +238,7 @@ public:
BuiltPathsCommand(bool recursive = false);
virtual void run(ref<Store> store, BuiltPaths && paths) = 0;
virtual void run(ref<Store> store, BuiltPaths && allPaths, BuiltPaths && rootPaths) = 0;
void run(ref<Store> store, Installables && installables) override;
@ -251,7 +251,7 @@ struct StorePathsCommand : public BuiltPathsCommand
virtual void run(ref<Store> store, StorePaths && storePaths) = 0;
void run(ref<Store> store, BuiltPaths && paths) override;
void run(ref<Store> store, BuiltPaths && allPaths, BuiltPaths && rootPaths) override;
};
/**
@ -301,11 +301,15 @@ struct MixProfile : virtual StoreCommand
MixProfile();
/* If 'profile' is set, make it point at 'storePath'. */
void updateProfile(const StorePath & storePath);
void updateProfile(
const StorePath & storePath,
ref<Store> store);
/* If 'profile' is set, make it point at the store path produced
by 'buildables'. */
void updateProfile(const BuiltPaths & buildables);
void updateProfile(
const BuiltPaths & buildables,
ref<Store> store);
};
struct MixDefaultProfile : MixProfile