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https://github.com/privatevoid-net/nix-super.git
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2040240e23
The typical use is to inherit Config and add Setting<T> members:
class MyClass : private Config
{
Setting<int> foo{this, 123, "foo", "the number of foos to use"};
Setting<std::string> bar{this, "blabla", "bar", "the name of the bar"};
MyClass() : Config(readConfigFile("/etc/my-app.conf"))
{
std::cout << foo << "\n"; // will print 123 unless overriden
}
};
Currently, this is used by Store and its subclasses for store
parameters. You now get a warning if you specify a non-existant store
parameter in a store URI.
134 lines
3.5 KiB
C++
134 lines
3.5 KiB
C++
#pragma once
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#include "crypto.hh"
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#include "store-api.hh"
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#include "pool.hh"
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#include <atomic>
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namespace nix {
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struct NarInfo;
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class BinaryCacheStore : public Store
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{
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public:
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const Setting<std::string> compression{this, "xz", "compression", "NAR compression method ('xz', 'bzip2', or 'none')"};
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const Setting<bool> writeNARListing{this, false, "write-nar-listing", "whether to write a JSON file listing the files in each NAR"};
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const Setting<Path> secretKeyFile{this, "", "secret-key", "path to secret key used to sign the binary cache"};
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private:
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std::unique_ptr<SecretKey> secretKey;
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protected:
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BinaryCacheStore(const Params & params);
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[[noreturn]] void notImpl();
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public:
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virtual bool fileExists(const std::string & path) = 0;
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virtual void upsertFile(const std::string & path,
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const std::string & data,
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const std::string & mimeType) = 0;
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/* Return the contents of the specified file, or null if it
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doesn't exist. */
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virtual void getFile(const std::string & path,
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std::function<void(std::shared_ptr<std::string>)> success,
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std::function<void(std::exception_ptr exc)> failure) = 0;
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std::shared_ptr<std::string> getFile(const std::string & path);
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protected:
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bool wantMassQuery_ = false;
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int priority = 50;
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public:
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virtual void init();
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private:
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std::string narMagic;
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std::string narInfoFileFor(const Path & storePath);
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public:
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bool isValidPathUncached(const Path & path) override;
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PathSet queryAllValidPaths() override
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{ notImpl(); }
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void queryPathInfoUncached(const Path & path,
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std::function<void(std::shared_ptr<ValidPathInfo>)> success,
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std::function<void(std::exception_ptr exc)> failure) override;
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void queryReferrers(const Path & path,
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PathSet & referrers) override
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{ notImpl(); }
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PathSet queryDerivationOutputs(const Path & path) override
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{ notImpl(); }
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StringSet queryDerivationOutputNames(const Path & path) override
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{ notImpl(); }
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Path queryPathFromHashPart(const string & hashPart) override
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{ notImpl(); }
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bool wantMassQuery() override { return wantMassQuery_; }
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void addToStore(const ValidPathInfo & info, const ref<std::string> & nar,
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bool repair, bool dontCheckSigs,
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std::shared_ptr<FSAccessor> accessor) override;
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Path addToStore(const string & name, const Path & srcPath,
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bool recursive, HashType hashAlgo,
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PathFilter & filter, bool repair) override;
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Path addTextToStore(const string & name, const string & s,
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const PathSet & references, bool repair) override;
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void narFromPath(const Path & path, Sink & sink) override;
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void buildPaths(const PathSet & paths, BuildMode buildMode) override
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{ notImpl(); }
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BuildResult buildDerivation(const Path & drvPath, const BasicDerivation & drv,
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BuildMode buildMode) override
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{ notImpl(); }
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void ensurePath(const Path & path) override
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{ notImpl(); }
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void addTempRoot(const Path & path) override
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{ notImpl(); }
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void addIndirectRoot(const Path & path) override
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{ notImpl(); }
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Roots findRoots() override
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{ notImpl(); }
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void collectGarbage(const GCOptions & options, GCResults & results) override
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{ notImpl(); }
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ref<FSAccessor> getFSAccessor() override;
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void addSignatures(const Path & storePath, const StringSet & sigs) override
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{ notImpl(); }
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std::shared_ptr<std::string> getBuildLog(const Path & path) override;
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};
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}
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