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Merge pull request #3829 from obsidiansystems/remove-storetype-delegate-regStore

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Remove storetype delegate reg store -- contains #3736
This commit is contained in:
Eelco Dolstra 2020-09-17 13:55:01 +02:00 committed by GitHub
commit 649d3aaf24
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GPG key ID: 4AEE18F83AFDEB23
9 changed files with 58 additions and 74 deletions
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13
src/libstore/remote-store.cc
View file

@ -97,7 +97,16 @@ RemoteStore::RemoteStore(const Params & params)
, RemoteStoreConfig(params)
, connections(make_ref<Pool<Connection>>(
std::max(1, (int) maxConnections),
[this]() { return openConnectionWrapper(); },
[this]() {
auto conn = openConnectionWrapper();
try {
initConnection(*conn);
} catch (...) {
failed = true;
throw;
}
return conn;
},
[this](const ref<Connection> & r) {
return
r->to.good()
@ -182,8 +191,6 @@ ref<RemoteStore::Connection> UDSRemoteStore::openConnection()
conn->startTime = std::chrono::steady_clock::now();
initConnection(*conn);
return conn;
}

4
src/libstore/remote-store.hh
View file

@ -106,8 +106,6 @@ public:
void flushBadConnections();
protected:
struct Connection
{
AutoCloseFD fd;
@ -123,6 +121,8 @@ protected:
ref<Connection> openConnectionWrapper();
protected:
virtual ref<Connection> openConnection() = 0;
void initConnection(Connection & conn);

1
src/libstore/ssh-store.cc
View file

@ -80,7 +80,6 @@ ref<RemoteStore::Connection> SSHStore::openConnection()
+ (remoteStore.get() == "" ? "" : " --store " + shellEscape(remoteStore.get())));
conn->to = FdSink(conn->sshConn->in.get());
conn->from = FdSource(conn->sshConn->out.get());
initConnection(*conn);
return conn;
}

48
src/libstore/store-api.cc
View file

@ -1040,38 +1040,26 @@ static bool isNonUriPath(const std::string & spec) {
&& spec.find("/") != std::string::npos;
}
StoreType getStoreType(const std::string & uri, const std::string & stateDir)
{
if (uri == "daemon") {
return tDaemon;
} else if (uri == "local" || isNonUriPath(uri)) {
return tLocal;
} else if (uri == "" || uri == "auto") {
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;
}
}
std::shared_ptr<Store> openFromNonUri(const std::string & uri, const Store::Params & params)
{
switch (getStoreType(uri, get(params, "state").value_or(settings.nixStateDir))) {
case tDaemon:
return std::shared_ptr<Store>(std::make_shared<UDSRemoteStore>(params));
case tLocal: {
Store::Params params2 = params;
if (isNonUriPath(uri)) {
params2["root"] = absPath(uri);
}
return std::shared_ptr<Store>(std::make_shared<LocalStore>(params2));
}
default:
return nullptr;
if (uri == "" || uri == "auto") {
auto stateDir = get(params, "state").value_or(settings.nixStateDir);
if (access(stateDir.c_str(), R_OK | W_OK) == 0)
return std::make_shared<LocalStore>(params);
else if (pathExists(settings.nixDaemonSocketFile))
return std::make_shared<UDSRemoteStore>(params);
else
return std::make_shared<LocalStore>(params);
} else if (uri == "daemon") {
return std::make_shared<UDSRemoteStore>(params);
} else if (uri == "local") {
return std::make_shared<LocalStore>(params);
} else if (isNonUriPath(uri)) {
Store::Params params2 = params;
params2["root"] = absPath(uri);
return std::make_shared<LocalStore>(params2);
} else {
return nullptr;
}
}

10
src/libstore/store-api.hh
View file

@ -791,16 +791,6 @@ ref<Store> openStore(const std::string & uri = settings.storeUri.get(),
const Store::Params & extraParams = Store::Params());
enum StoreType {
tDaemon,
tLocal,
tOther
};
StoreType getStoreType(const std::string & uri = settings.storeUri.get(),
const std::string & stateDir = settings.nixStateDir);
/* Return the default substituter stores, defined by the
‘substituters’ option and various legacy options. */
std::list<ref<Store>> getDefaultSubstituters();

35
src/nix-daemon/nix-daemon.cc
View file

@ -1,5 +1,6 @@
#include "shared.hh"
#include "local-store.hh"
#include "remote-store.hh"
#include "util.hh"
#include "serialise.hh"
#include "archive.hh"
@ -285,44 +286,28 @@ static int _main(int argc, char * * argv)
initPlugins();
if (stdio) {
if (getStoreType() == tDaemon) {
// Forward on this connection to the real daemon
auto socketPath = settings.nixDaemonSocketFile;
auto s = socket(PF_UNIX, SOCK_STREAM, 0);
if (s == -1)
throw SysError("creating Unix domain socket");
if (auto store = openUncachedStore().dynamic_pointer_cast<RemoteStore>()) {
auto conn = store->openConnectionWrapper();
int from = conn->from.fd;
int to = conn->to.fd;
auto socketDir = dirOf(socketPath);
if (chdir(socketDir.c_str()) == -1)
throw SysError("changing to socket directory '%1%'", socketDir);
auto socketName = std::string(baseNameOf(socketPath));
auto addr = sockaddr_un{};
addr.sun_family = AF_UNIX;
if (socketName.size() + 1 >= sizeof(addr.sun_path))
throw Error("socket name %1% is too long", socketName);
strcpy(addr.sun_path, socketName.c_str());
if (connect(s, (struct sockaddr *) &addr, sizeof(addr)) == -1)
throw SysError("cannot connect to daemon at %1%", socketPath);
auto nfds = (s > STDIN_FILENO ? s : STDIN_FILENO) + 1;
auto nfds = std::max(from, STDIN_FILENO) + 1;
while (true) {
fd_set fds;
FD_ZERO(&fds);
FD_SET(s, &fds);
FD_SET(from, &fds);
FD_SET(STDIN_FILENO, &fds);
if (select(nfds, &fds, nullptr, nullptr, nullptr) == -1)
throw SysError("waiting for data from client or server");
if (FD_ISSET(s, &fds)) {
auto res = splice(s, nullptr, STDOUT_FILENO, nullptr, SSIZE_MAX, SPLICE_F_MOVE);
if (FD_ISSET(from, &fds)) {
auto res = splice(from, nullptr, STDOUT_FILENO, nullptr, SSIZE_MAX, SPLICE_F_MOVE);
if (res == -1)
throw SysError("splicing data from daemon socket to stdout");
else if (res == 0)
throw EndOfFile("unexpected EOF from daemon socket");
}
if (FD_ISSET(STDIN_FILENO, &fds)) {
auto res = splice(STDIN_FILENO, nullptr, s, nullptr, SSIZE_MAX, SPLICE_F_MOVE);
auto res = splice(STDIN_FILENO, nullptr, to, nullptr, SSIZE_MAX, SPLICE_F_MOVE);
if (res == -1)
throw SysError("splicing data from stdin to daemon socket");
else if (res == 0)

4
src/nix/doctor.cc
View file

@ -49,9 +49,7 @@ struct CmdDoctor : StoreCommand
{
logger->log("Running checks against store uri: " + store->getUri());
auto type = getStoreType();
if (type < tOther) {
if (store.dynamic_pointer_cast<LocalFSStore>()) {
success &= checkNixInPath();
success &= checkProfileRoots(store);
}

1
tests/local.mk
View file

@ -15,6 +15,7 @@ nix_tests = \
linux-sandbox.sh \
build-dry.sh \
build-remote-input-addressed.sh \
ssh-relay.sh \
nar-access.sh \
structured-attrs.sh \
fetchGit.sh \

16
tests/ssh-relay.sh Normal file
View file

@ -0,0 +1,16 @@
source common.sh
echo foo > $TEST_ROOT/hello.sh
ssh_localhost=ssh://localhost
remote_store=?remote-store=$ssh_localhost
store=$ssh_localhost
store+=$remote_store
store+=$remote_store
store+=$remote_store
out=$(nix add-to-store --store "$store" $TEST_ROOT/hello.sh)
[ foo = $(< $out) ]