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Ensure we can construct remote store configs in isolation
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Progress towards NixOS#10766

I thought that NixOS#10768 achieved, but when I went to use this stuff (in
Hydra), turns out it did not. (Those `using FooConfig;` lines were not
working --- they are so finicky!) This PR gets the job done, and adds
some trivial unit tests to make sure I did what I intended.

I had to add add a header to expose `SSHStoreConfig`, after which the
preexisting `ssh-store-config.*` were very confusingly named files, so I
renamed them to `common-ssh-store-config.hh` to match the type defined
therein.
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Ericson2314 committed Jul 15, 2024
1 parent 9d7397c commit 4b8204e
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Showing 10 changed files with 110 additions and 25 deletions.
Original file line number Diff line number Diff line change
@@ -1,6 +1,6 @@
#include <regex>

#include "ssh-store-config.hh"
#include "common-ssh-store-config.hh"
#include "ssh.hh"

namespace nix {
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File renamed without changes.
13 changes: 11 additions & 2 deletions src/libstore/legacy-ssh-store.cc
Original file line number Diff line number Diff line change
@@ -1,5 +1,5 @@
#include "legacy-ssh-store.hh"
#include "ssh-store-config.hh"
#include "common-ssh-store-config.hh"
#include "archive.hh"
#include "pool.hh"
#include "remote-store.hh"
Expand All @@ -15,6 +15,15 @@

namespace nix {

LegacySSHStoreConfig::LegacySSHStoreConfig(
std::string_view scheme,
std::string_view host,
const Params & params)
: StoreConfig(params)
, CommonSSHStoreConfig(scheme, host, params)
{
}

std::string LegacySSHStoreConfig::doc()
{
return
Expand All @@ -35,7 +44,7 @@ LegacySSHStore::LegacySSHStore(
const Params & params)
: StoreConfig(params)
, CommonSSHStoreConfig(scheme, host, params)
, LegacySSHStoreConfig(params)
, LegacySSHStoreConfig(scheme, host, params)
, Store(params)
, connections(make_ref<Pool<Connection>>(
std::max(1, (int) maxConnections),
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7 changes: 6 additions & 1 deletion src/libstore/legacy-ssh-store.hh
Original file line number Diff line number Diff line change
@@ -1,7 +1,7 @@
#pragma once
///@file

#include "ssh-store-config.hh"
#include "common-ssh-store-config.hh"
#include "store-api.hh"
#include "ssh.hh"
#include "callback.hh"
Expand All @@ -13,6 +13,11 @@ struct LegacySSHStoreConfig : virtual CommonSSHStoreConfig
{
using CommonSSHStoreConfig::CommonSSHStoreConfig;

LegacySSHStoreConfig(
std::string_view scheme,
std::string_view host,
const Params & params);

const Setting<Strings> remoteProgram{this, {"nix-store"}, "remote-program",
"Path to the `nix-store` executable on the remote machine."};

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4 changes: 2 additions & 2 deletions src/libstore/meson.build
Original file line number Diff line number Diff line change
Expand Up @@ -162,6 +162,7 @@ sources = files(
'builtins/fetchurl.cc',
'builtins/unpack-channel.cc',
'common-protocol.cc',
'common-ssh-store-config.cc',
'content-address.cc',
'daemon.cc',
'derivations.cc',
Expand Down Expand Up @@ -206,7 +207,6 @@ sources = files(
'serve-protocol-connection.cc',
'serve-protocol.cc',
'sqlite.cc',
'ssh-store-config.cc',
'ssh-store.cc',
'ssh.cc',
'store-api.cc',
Expand All @@ -233,6 +233,7 @@ headers = [config_h] + files(
'builtins/buildenv.hh',
'common-protocol-impl.hh',
'common-protocol.hh',
'common-ssh-store-config.hh',
'content-address.hh',
'daemon.hh',
'derivations.hh',
Expand Down Expand Up @@ -276,7 +277,6 @@ headers = [config_h] + files(
'serve-protocol-impl.hh',
'serve-protocol.hh',
'sqlite.hh',
'ssh-store-config.hh',
'ssh.hh',
'store-api.hh',
'store-cast.hh',
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35 changes: 16 additions & 19 deletions src/libstore/ssh-store.cc
Original file line number Diff line number Diff line change
@@ -1,7 +1,5 @@
#include "ssh-store-config.hh"
#include "store-api.hh"
#include "ssh-store.hh"
#include "local-fs-store.hh"
#include "remote-store.hh"
#include "remote-store-connection.hh"
#include "source-accessor.hh"
#include "archive.hh"
Expand All @@ -12,23 +10,22 @@

namespace nix {

struct SSHStoreConfig : virtual RemoteStoreConfig, virtual CommonSSHStoreConfig
SSHStoreConfig::SSHStoreConfig(
std::string_view scheme,
std::string_view host,
const Params & params)
: StoreConfig(params)
, RemoteStoreConfig(params)
, CommonSSHStoreConfig(scheme, host, params)
{
using RemoteStoreConfig::RemoteStoreConfig;
using CommonSSHStoreConfig::CommonSSHStoreConfig;

const Setting<Strings> remoteProgram{this, {"nix-daemon"}, "remote-program",
"Path to the `nix-daemon` executable on the remote machine."};

const std::string name() override { return "Experimental SSH Store"; }
}

std::string doc() override
{
return
#include "ssh-store.md"
;
}
};
std::string SSHStoreConfig::doc()
{
return
#include "ssh-store.md"
;
}

class SSHStore : public virtual SSHStoreConfig, public virtual RemoteStore
{
Expand All @@ -41,7 +38,7 @@ class SSHStore : public virtual SSHStoreConfig, public virtual RemoteStore
: StoreConfig(params)
, RemoteStoreConfig(params)
, CommonSSHStoreConfig(scheme, host, params)
, SSHStoreConfig(params)
, SSHStoreConfig(scheme, host, params)
, Store(params)
, RemoteStore(params)
, master(createSSHMaster(
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28 changes: 28 additions & 0 deletions src/libstore/ssh-store.hh
Original file line number Diff line number Diff line change
@@ -0,0 +1,28 @@
#pragma once
///@file

#include "common-ssh-store-config.hh"
#include "store-api.hh"
#include "remote-store.hh"

namespace nix {

struct SSHStoreConfig : virtual RemoteStoreConfig, virtual CommonSSHStoreConfig
{
using RemoteStoreConfig::RemoteStoreConfig;
using CommonSSHStoreConfig::CommonSSHStoreConfig;

SSHStoreConfig(
std::string_view scheme,
std::string_view host,
const Params & params);

const Setting<Strings> remoteProgram{this, {"nix-daemon"}, "remote-program",
"Path to the `nix-daemon` executable on the remote machine."};

const std::string name() override { return "Experimental SSH Store"; }

std::string doc() override;
};

}
22 changes: 22 additions & 0 deletions tests/unit/libstore/legacy-ssh-store.cc
Original file line number Diff line number Diff line change
@@ -0,0 +1,22 @@
#include <gtest/gtest.h>

#include "legacy-ssh-store.hh"

namespace nix {

TEST(LegacySSHStore, constructConfig)
{
LegacySSHStoreConfig{
"ssh",
"localhost",
{
{
"remote-program",
{
"foo",
"bar",
},
},
}};
}
}
2 changes: 2 additions & 0 deletions tests/unit/libstore/meson.build
Original file line number Diff line number Diff line change
Expand Up @@ -58,6 +58,7 @@ sources = files(
'derivation.cc',
'derived-path.cc',
'downstream-placeholder.cc',
'legacy-ssh-store.cc',
'machines.cc',
'nar-info-disk-cache.cc',
'nar-info.cc',
Expand All @@ -67,6 +68,7 @@ sources = files(
'path.cc',
'references.cc',
'serve-protocol.cc',
'ssh-store.cc',
'store-reference.cc',
'worker-protocol.cc',
)
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22 changes: 22 additions & 0 deletions tests/unit/libstore/ssh-store.cc
Original file line number Diff line number Diff line change
@@ -0,0 +1,22 @@
#include <gtest/gtest.h>

#include "ssh-store.hh"

namespace nix {

TEST(SSHStore, constructConfig)
{
SSHStoreConfig{
"ssh",
"localhost",
{
{
"remote-program",
{
"foo",
"bar",
},
},
}};
}
}

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