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Factor a function to get the store type from a URI out of the main RegisterStoreImplementation

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This commit is contained in:
Shea Levy 2016-09-02 06:39:29 -04:00
parent a91954f0c6
commit 53b27ddce2
2 changed files with 36 additions and 19 deletions
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45
src/libstore/store-api.cc
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@ -529,30 +529,37 @@ ref<Store> openStore(const std::string & uri_)
}
StoreType getStoreType(const std::string & uri, const std::string & stateDir)
{
if (uri == "daemon") {
return tDaemon;
} else if (uri == "local") {
return tLocal;
} else if (uri == "") {
if (access(stateDir.c_str(), R_OK | W_OK) == 0)
return tLocal;
else if (pathExists(settings.nixDaemonSocketFile))
return tDaemon;
else
return tLocal;
} else {
return tOther;
}
}
static RegisterStoreImplementation regStore([](
const std::string & uri, const Store::Params & params)
-> std::shared_ptr<Store>
{
enum { mDaemon, mLocal, mAuto } mode;
if (uri == "daemon") mode = mDaemon;
else if (uri == "local") mode = mLocal;
else if (uri == "") mode = mAuto;
else return 0;
if (mode == mAuto) {
auto stateDir = get(params, "state", settings.nixStateDir);
if (access(stateDir.c_str(), R_OK | W_OK) == 0)
mode = mLocal;
else if (pathExists(settings.nixDaemonSocketFile))
mode = mDaemon;
else
mode = mLocal;
switch (getStoreType(uri, get(params, "state", settings.nixStateDir))) {
case tDaemon:
return std::shared_ptr<Store>(std::make_shared<RemoteStore>(params));
case tLocal:
return std::shared_ptr<Store>(std::make_shared<LocalStore>(params));
default:
return nullptr;
}
return mode == mDaemon
? std::shared_ptr<Store>(std::make_shared<RemoteStore>(params))
: std::shared_ptr<Store>(std::make_shared<LocalStore>(params));
});