forked from lix-project/lix
d2ce2e89b1
Rather than doing `allowEmpty` as boolean, have separate types and use `std::optional`. This makes it harder to forget the possibility of an empty path. The `build-hook` setting was categorized as a `PathSetting`, but actually it was split into arguments. No good! Now, it is `Setting<Strings>` which actually reflects what it means and how it is used. Because of the subtyping, we now also have support for `Setting<std::optional<String>>` in general. I imagine this can be used to clean up many more settings also.
69 lines
1.9 KiB
C++
69 lines
1.9 KiB
C++
#pragma once
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///@file
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#include "store-api.hh"
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#include "gc-store.hh"
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#include "log-store.hh"
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namespace nix {
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struct LocalFSStoreConfig : virtual StoreConfig
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{
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using StoreConfig::StoreConfig;
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// FIXME: the (StoreConfig*) cast works around a bug in gcc that causes
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// it to omit the call to the Setting constructor. Clang works fine
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// either way.
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const OptionalPathSetting rootDir{(StoreConfig*) this, std::nullopt,
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"root",
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"Directory prefixed to all other paths."};
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const PathSetting stateDir{(StoreConfig*) this,
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rootDir.get() ? *rootDir.get() + "/nix/var/nix" : settings.nixStateDir,
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"state",
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"Directory where Nix will store state."};
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const PathSetting logDir{(StoreConfig*) this,
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rootDir.get() ? *rootDir.get() + "/nix/var/log/nix" : settings.nixLogDir,
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"log",
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"directory where Nix will store log files."};
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const PathSetting realStoreDir{(StoreConfig*) this,
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rootDir.get() ? *rootDir.get() + "/nix/store" : storeDir, "real",
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"Physical path of the Nix store."};
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};
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class LocalFSStore : public virtual LocalFSStoreConfig,
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public virtual Store,
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public virtual GcStore,
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public virtual LogStore
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{
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public:
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const static std::string drvsLogDir;
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LocalFSStore(const Params & params);
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void narFromPath(const StorePath & path, Sink & sink) override;
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ref<FSAccessor> getFSAccessor() override;
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/**
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* Register a permanent GC root.
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*/
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Path addPermRoot(const StorePath & storePath, const Path & gcRoot);
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virtual Path getRealStoreDir() { return realStoreDir; }
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Path toRealPath(const Path & storePath) override
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{
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assert(isInStore(storePath));
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return getRealStoreDir() + "/" + std::string(storePath, storeDir.size() + 1);
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}
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std::optional<std::string> getBuildLogExact(const StorePath & path) override;
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};
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}
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