77 lines
2.2 KiB
C++
77 lines
2.2 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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const OptionalPathSetting rootDir{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{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{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{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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inline static std::string operationName = "Local Filesystem Store";
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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<SourceAccessor> getFSAccessor(bool requireValidPath) override;
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/**
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* Creates symlink from the `gcRoot` to the `storePath` and
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* registers the `gcRoot` as a permanent GC root. The `gcRoot`
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* symlink lives outside the store and is created and owned by the
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* user.
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*
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* @param gcRoot The location of the symlink.
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*
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* @param storePath The store object being rooted. The symlink will
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* point to `toRealPath(store.printStorePath(storePath))`.
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*
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* How the permanent GC root corresponding to this symlink is
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* managed is implementation-specific.
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*/
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virtual Path addPermRoot(const StorePath & storePath, const Path & gcRoot) = 0;
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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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