forked from lix-project/lix
7d5bdf8b56
Directly register the store classes rather than a function to build an instance of them. This gives the possibility to introspect static members of the class or choose different ways of instantiating them.
82 lines
2.3 KiB
C++
82 lines
2.3 KiB
C++
#include "store-api.hh"
|
|
#include "remote-store.hh"
|
|
#include "remote-fs-accessor.hh"
|
|
#include "archive.hh"
|
|
#include "worker-protocol.hh"
|
|
#include "pool.hh"
|
|
#include "ssh.hh"
|
|
|
|
namespace nix {
|
|
|
|
class SSHStore : public RemoteStore
|
|
{
|
|
public:
|
|
|
|
const Setting<Path> sshKey{(Store*) this, "", "ssh-key", "path to an SSH private key"};
|
|
const Setting<bool> compress{(Store*) this, false, "compress", "whether to compress the connection"};
|
|
const Setting<Path> remoteProgram{(Store*) this, "nix-daemon", "remote-program", "path to the nix-daemon executable on the remote system"};
|
|
const Setting<std::string> remoteStore{(Store*) this, "", "remote-store", "URI of the store on the remote system"};
|
|
|
|
SSHStore(const std::string & host, const Params & params)
|
|
: Store(params)
|
|
, RemoteStore(params)
|
|
, host(host)
|
|
, master(
|
|
host,
|
|
sshKey,
|
|
// Use SSH master only if using more than 1 connection.
|
|
connections->capacity() > 1,
|
|
compress)
|
|
{
|
|
}
|
|
|
|
static std::vector<std::string> uriPrefixes() { return {"ssh-ng"}; }
|
|
|
|
std::string getUri() override
|
|
{
|
|
return uriPrefixes()[0] + "://" + host;
|
|
}
|
|
|
|
bool sameMachine() override
|
|
{ return false; }
|
|
|
|
private:
|
|
|
|
struct Connection : RemoteStore::Connection
|
|
{
|
|
std::unique_ptr<SSHMaster::Connection> sshConn;
|
|
};
|
|
|
|
ref<RemoteStore::Connection> openConnection() override;
|
|
|
|
std::string host;
|
|
|
|
SSHMaster master;
|
|
|
|
void setOptions(RemoteStore::Connection & conn) override
|
|
{
|
|
/* TODO Add a way to explicitly ask for some options to be
|
|
forwarded. One option: A way to query the daemon for its
|
|
settings, and then a series of params to SSHStore like
|
|
forward-cores or forward-overridden-cores that only
|
|
override the requested settings.
|
|
*/
|
|
};
|
|
};
|
|
|
|
ref<RemoteStore::Connection> SSHStore::openConnection()
|
|
{
|
|
auto conn = make_ref<Connection>();
|
|
conn->sshConn = master.startCommand(
|
|
fmt("%s --stdio", remoteProgram)
|
|
+ (remoteStore.get() == "" ? "" : " --store " + shellEscape(remoteStore.get())));
|
|
conn->to = FdSink(conn->sshConn->in.get());
|
|
conn->from = FdSource(conn->sshConn->out.get());
|
|
initConnection(*conn);
|
|
return conn;
|
|
}
|
|
|
|
[[maybe_unused]] static RegisterStoreImplementation<SSHStore> regStore();
|
|
|
|
}
|