dc4a00347d
This will make it easier to do caching / keep stats. Also, we won't have S3Client's connection pooling if we create multiple S3Client instances.
45 lines
1.1 KiB
C++
45 lines
1.1 KiB
C++
#include "local-binary-cache-store.hh"
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namespace nix {
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LocalBinaryCacheStore::LocalBinaryCacheStore(const StoreFactory & storeFactory,
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const Path & secretKeyFile, const Path & publicKeyFile,
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const Path & binaryCacheDir)
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: BinaryCacheStore(storeFactory, secretKeyFile, publicKeyFile)
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, binaryCacheDir(binaryCacheDir)
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{
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}
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void LocalBinaryCacheStore::init()
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{
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createDirs(binaryCacheDir + "/nar");
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BinaryCacheStore::init();
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}
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static void atomicWrite(const Path & path, const std::string & s)
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{
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Path tmp = path + ".tmp." + std::to_string(getpid());
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AutoDelete del(tmp, false);
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writeFile(tmp, s);
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if (rename(tmp.c_str(), path.c_str()))
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throw SysError(format("renaming ‘%1%’ to ‘%2%’") % tmp % path);
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del.cancel();
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}
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bool LocalBinaryCacheStore::fileExists(const std::string & path)
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{
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return pathExists(binaryCacheDir + "/" + path);
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}
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void LocalBinaryCacheStore::upsertFile(const std::string & path, const std::string & data)
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{
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atomicWrite(binaryCacheDir + "/" + path, data);
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}
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std::string LocalBinaryCacheStore::getFile(const std::string & path)
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{
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return readFile(binaryCacheDir + "/" + path);
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}
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}
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