forked from lix-project/lix
54 lines
1.5 KiB
C++
54 lines
1.5 KiB
C++
#include "local-binary-cache-store.hh"
|
||
|
||
namespace nix {
|
||
|
||
LocalBinaryCacheStore::LocalBinaryCacheStore(std::shared_ptr<Store> localStore,
|
||
const Path & secretKeyFile, const Path & publicKeyFile,
|
||
const Path & binaryCacheDir)
|
||
: BinaryCacheStore(localStore, secretKeyFile, publicKeyFile)
|
||
, binaryCacheDir(binaryCacheDir)
|
||
{
|
||
}
|
||
|
||
void LocalBinaryCacheStore::init()
|
||
{
|
||
createDirs(binaryCacheDir + "/nar");
|
||
BinaryCacheStore::init();
|
||
}
|
||
|
||
static void atomicWrite(const Path & path, const std::string & s)
|
||
{
|
||
Path tmp = path + ".tmp." + std::to_string(getpid());
|
||
AutoDelete del(tmp, false);
|
||
writeFile(tmp, s);
|
||
if (rename(tmp.c_str(), path.c_str()))
|
||
throw SysError(format("renaming ‘%1%’ to ‘%2%’") % tmp % path);
|
||
del.cancel();
|
||
}
|
||
|
||
bool LocalBinaryCacheStore::fileExists(const std::string & path)
|
||
{
|
||
return pathExists(binaryCacheDir + "/" + path);
|
||
}
|
||
|
||
void LocalBinaryCacheStore::upsertFile(const std::string & path, const std::string & data)
|
||
{
|
||
atomicWrite(binaryCacheDir + "/" + path, data);
|
||
}
|
||
|
||
std::string LocalBinaryCacheStore::getFile(const std::string & path)
|
||
{
|
||
return readFile(binaryCacheDir + "/" + path);
|
||
}
|
||
|
||
static RegisterStoreImplementation regStore([](const std::string & uri) -> std::shared_ptr<Store> {
|
||
if (std::string(uri, 0, 7) != "file://") return 0;
|
||
auto store = std::make_shared<LocalBinaryCacheStore>(std::shared_ptr<Store>(0),
|
||
"", "", // FIXME: allow the signing key to be set
|
||
std::string(uri, 7));
|
||
store->init();
|
||
return store;
|
||
});
|
||
|
||
}
|