mirror of
https://github.com/privatevoid-net/nix-super.git
synced 2024-11-10 00:08:07 +02:00
Ensure all store types support "real" URIs
In particular `local://<path>` and `unix://` (without any path) now work, and mean the same things as `local` and `daemon`, respectively. We thus now have the opportunity to desguar `local` and `daemon` early. This will allow me to make a change to https://github.com/NixOS/nix/pull/9839 requested during review to desugar those earlier. Co-authored-by: Théophane Hufschmitt <7226587+thufschmitt@users.noreply.github.com>
This commit is contained in:
parent
3a7d62528d
commit
470c0501eb
19 changed files with 170 additions and 75 deletions
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@ -18,9 +18,12 @@ struct DummyStoreConfig : virtual StoreConfig {
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struct DummyStore : public virtual DummyStoreConfig, public virtual Store
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struct DummyStore : public virtual DummyStoreConfig, public virtual Store
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{
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{
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DummyStore(const std::string scheme, const std::string uri, const Params & params)
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DummyStore(std::string_view scheme, std::string_view authority, const Params & params)
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: DummyStore(params)
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: DummyStore(params)
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{ }
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{
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if (!authority.empty())
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throw UsageError("`%s` store URIs must not contain an authority part %s", scheme, authority);
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}
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DummyStore(const Params & params)
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DummyStore(const Params & params)
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: StoreConfig(params)
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: StoreConfig(params)
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@ -39,15 +39,20 @@ private:
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public:
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public:
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HttpBinaryCacheStore(
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HttpBinaryCacheStore(
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const std::string & scheme,
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std::string_view scheme,
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const Path & _cacheUri,
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PathView _cacheUri,
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const Params & params)
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const Params & params)
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: StoreConfig(params)
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: StoreConfig(params)
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, BinaryCacheStoreConfig(params)
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, BinaryCacheStoreConfig(params)
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, HttpBinaryCacheStoreConfig(params)
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, HttpBinaryCacheStoreConfig(params)
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, Store(params)
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, Store(params)
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, BinaryCacheStore(params)
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, BinaryCacheStore(params)
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, cacheUri(scheme + "://" + _cacheUri)
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, cacheUri(
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std::string { scheme }
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+ "://"
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+ (!_cacheUri.empty()
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? _cacheUri
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: throw UsageError("`%s` Store requires a non-empty authority in Store URL", scheme)))
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{
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{
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while (!cacheUri.empty() && cacheUri.back() == '/')
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while (!cacheUri.empty() && cacheUri.back() == '/')
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cacheUri.pop_back();
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cacheUri.pop_back();
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@ -28,8 +28,18 @@ struct LegacySSHStore::Connection : public ServeProto::BasicClientConnection
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bool good = true;
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bool good = true;
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};
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};
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LegacySSHStore::LegacySSHStore(
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std::string_view scheme,
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std::string_view host,
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const Params & params)
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: LegacySSHStore{scheme, LegacySSHStoreConfig::extractConnStr(scheme, host), params}
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{
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}
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LegacySSHStore::LegacySSHStore(const std::string & scheme, const std::string & host, const Params & params)
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LegacySSHStore::LegacySSHStore(
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std::string_view scheme,
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std::string host,
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const Params & params)
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: StoreConfig(params)
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: StoreConfig(params)
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, CommonSSHStoreConfig(params)
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, CommonSSHStoreConfig(params)
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, LegacySSHStoreConfig(params)
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, LegacySSHStoreConfig(params)
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@ -42,8 +52,8 @@ LegacySSHStore::LegacySSHStore(const std::string & scheme, const std::string & h
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))
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))
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, master(
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, master(
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host,
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host,
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sshKey,
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sshKey.get(),
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sshPublicHostKey,
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sshPublicHostKey.get(),
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// Use SSH master only if using more than 1 connection.
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// Use SSH master only if using more than 1 connection.
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connections->capacity() > 1,
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connections->capacity() > 1,
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compress,
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compress,
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@ -41,7 +41,17 @@ struct LegacySSHStore : public virtual LegacySSHStoreConfig, public virtual Stor
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static std::set<std::string> uriSchemes() { return {"ssh"}; }
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static std::set<std::string> uriSchemes() { return {"ssh"}; }
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LegacySSHStore(const std::string & scheme, const std::string & host, const Params & params);
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LegacySSHStore(
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std::string_view scheme,
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std::string_view host,
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const Params & params);
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private:
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LegacySSHStore(
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std::string_view scheme,
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std::string host,
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const Params & params);
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public:
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ref<Connection> openConnection();
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ref<Connection> openConnection();
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@ -28,9 +28,13 @@ private:
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public:
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public:
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/**
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* @param binaryCacheDir `file://` is a short-hand for `file:///`
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* for now.
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*/
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LocalBinaryCacheStore(
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LocalBinaryCacheStore(
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const std::string scheme,
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std::string_view scheme,
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const Path & binaryCacheDir,
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PathView binaryCacheDir,
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const Params & params)
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const Params & params)
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: StoreConfig(params)
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: StoreConfig(params)
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, BinaryCacheStoreConfig(params)
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, BinaryCacheStoreConfig(params)
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@ -463,10 +463,20 @@ LocalStore::LocalStore(const Params & params)
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}
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}
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LocalStore::LocalStore(std::string scheme, std::string path, const Params & params)
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LocalStore::LocalStore(
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: LocalStore(params)
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std::string_view scheme,
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PathView path,
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const Params & _params)
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: LocalStore([&]{
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// Default `?root` from `path` if non set
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if (!path.empty() && _params.count("root") == 0) {
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auto params = _params;
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params.insert_or_assign("root", std::string { path });
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return params;
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}
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return _params;
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}())
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{
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{
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throw UnimplementedError("LocalStore");
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}
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}
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@ -137,12 +137,15 @@ public:
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* necessary.
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* necessary.
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*/
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*/
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LocalStore(const Params & params);
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LocalStore(const Params & params);
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LocalStore(std::string scheme, std::string path, const Params & params);
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LocalStore(
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std::string_view scheme,
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PathView path,
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const Params & params);
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~LocalStore();
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~LocalStore();
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static std::set<std::string> uriSchemes()
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static std::set<std::string> uriSchemes()
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{ return {}; }
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{ return {"local"}; }
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/**
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/**
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* Implementations of abstract store API methods.
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* Implementations of abstract store API methods.
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@ -269,8 +269,8 @@ struct S3BinaryCacheStoreImpl : virtual S3BinaryCacheStoreConfig, public virtual
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S3Helper s3Helper;
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S3Helper s3Helper;
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S3BinaryCacheStoreImpl(
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S3BinaryCacheStoreImpl(
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const std::string & uriScheme,
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std::string_view uriScheme,
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const std::string & bucketName,
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std::string_view bucketName,
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const Params & params)
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const Params & params)
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: StoreConfig(params)
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: StoreConfig(params)
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, BinaryCacheStoreConfig(params)
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, BinaryCacheStoreConfig(params)
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@ -281,6 +281,8 @@ struct S3BinaryCacheStoreImpl : virtual S3BinaryCacheStoreConfig, public virtual
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, bucketName(bucketName)
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, bucketName(bucketName)
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, s3Helper(profile, region, scheme, endpoint)
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, s3Helper(profile, region, scheme, endpoint)
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{
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{
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if (bucketName.empty())
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throw UsageError("`%s` store requires a bucket name in its Store URI", uriScheme);
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diskCache = getNarInfoDiskCache();
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diskCache = getNarInfoDiskCache();
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}
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}
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24
src/libstore/ssh-store-config.cc
Normal file
24
src/libstore/ssh-store-config.cc
Normal file
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@ -0,0 +1,24 @@
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#include <regex>
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#include "ssh-store-config.hh"
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namespace nix {
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std::string CommonSSHStoreConfig::extractConnStr(std::string_view scheme, std::string_view _connStr)
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{
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if (_connStr.empty())
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throw UsageError("`%s` store requires a valid SSH host as the authority part in Store URI", scheme);
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std::string connStr{_connStr};
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std::smatch result;
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static std::regex v6AddrRegex("^((.*)@)?\\[(.*)\\]$");
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if (std::regex_match(connStr, result, v6AddrRegex)) {
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connStr = result[1].matched ? result.str(1) + result.str(3) : result.str(3);
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}
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return connStr;
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}
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}
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@ -24,6 +24,29 @@ struct CommonSSHStoreConfig : virtual StoreConfig
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to be used on the remote machine. The default is `auto`
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to be used on the remote machine. The default is `auto`
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(i.e. use the Nix daemon or `/nix/store` directly).
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(i.e. use the Nix daemon or `/nix/store` directly).
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)"};
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)"};
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/**
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* The `parseURL` function supports both IPv6 URIs as defined in
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* RFC2732, but also pure addresses. The latter one is needed here to
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* connect to a remote store via SSH (it's possible to do e.g. `ssh root@::1`).
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*
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* This function now ensures that a usable connection string is available:
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*
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* - If the store to be opened is not an SSH store, nothing will be done.
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*
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* - If the URL looks like `root@[::1]` (which is allowed by the URL parser and probably
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* needed to pass further flags), it
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* will be transformed into `root@::1` for SSH (same for `[::1]` -> `::1`).
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*
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* - If the URL looks like `root@::1` it will be left as-is.
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*
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* - In any other case, the string will be left as-is.
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*
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* Will throw an error if `connStr` is empty too.
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*/
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static std::string extractConnStr(
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std::string_view scheme,
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std::string_view connStr);
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};
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};
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}
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}
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@ -32,9 +32,10 @@ struct SSHStoreConfig : virtual RemoteStoreConfig, virtual CommonSSHStoreConfig
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class SSHStore : public virtual SSHStoreConfig, public virtual RemoteStore
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class SSHStore : public virtual SSHStoreConfig, public virtual RemoteStore
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{
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{
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public:
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SSHStore(
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std::string_view scheme,
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SSHStore(const std::string & scheme, const std::string & host, const Params & params)
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std::string host,
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const Params & params)
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: StoreConfig(params)
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: StoreConfig(params)
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, RemoteStoreConfig(params)
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, RemoteStoreConfig(params)
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, CommonSSHStoreConfig(params)
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, CommonSSHStoreConfig(params)
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@ -44,14 +45,24 @@ public:
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, host(host)
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, host(host)
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, master(
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, master(
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host,
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host,
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sshKey,
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sshKey.get(),
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sshPublicHostKey,
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sshPublicHostKey.get(),
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// Use SSH master only if using more than 1 connection.
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// Use SSH master only if using more than 1 connection.
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connections->capacity() > 1,
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connections->capacity() > 1,
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compress)
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compress)
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{
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{
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}
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}
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public:
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SSHStore(
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std::string_view scheme,
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std::string_view host,
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const Params & params)
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: SSHStore{scheme, SSHStoreConfig::extractConnStr(scheme, host), params}
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{
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}
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static std::set<std::string> uriSchemes() { return {"ssh-ng"}; }
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static std::set<std::string> uriSchemes() { return {"ssh-ng"}; }
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std::string getUri() override
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std::string getUri() override
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@ -141,7 +152,10 @@ class MountedSSHStore : public virtual MountedSSHStoreConfig, public virtual SSH
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{
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{
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public:
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public:
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MountedSSHStore(const std::string & scheme, const std::string & host, const Params & params)
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MountedSSHStore(
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std::string_view scheme,
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std::string_view host,
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const Params & params)
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: StoreConfig(params)
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: StoreConfig(params)
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, RemoteStoreConfig(params)
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, RemoteStoreConfig(params)
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, CommonSSHStoreConfig(params)
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, CommonSSHStoreConfig(params)
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@ -6,7 +6,11 @@
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namespace nix {
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namespace nix {
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SSHMaster::SSHMaster(const std::string & host, const std::string & keyFile, const std::string & sshPublicHostKey, bool useMaster, bool compress, int logFD)
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SSHMaster::SSHMaster(
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std::string_view host,
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std::string_view keyFile,
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std::string_view sshPublicHostKey,
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bool useMaster, bool compress, int logFD)
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: host(host)
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: host(host)
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, fakeSSH(host == "localhost")
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, fakeSSH(host == "localhost")
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, keyFile(keyFile)
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, keyFile(keyFile)
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@ -39,7 +39,11 @@ private:
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public:
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public:
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SSHMaster(const std::string & host, const std::string & keyFile, const std::string & sshPublicHostKey, bool useMaster, bool compress, int logFD = -1);
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SSHMaster(
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std::string_view host,
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std::string_view keyFile,
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std::string_view sshPublicHostKey,
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bool useMaster, bool compress, int logFD = -1);
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struct Connection
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struct Connection
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{
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{
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@ -21,7 +21,6 @@
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#include "users.hh"
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#include "users.hh"
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#include <nlohmann/json.hpp>
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#include <nlohmann/json.hpp>
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#include <regex>
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using json = nlohmann::json;
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using json = nlohmann::json;
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@ -1321,9 +1320,7 @@ std::shared_ptr<Store> openFromNonUri(const std::string & uri, const Store::Para
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warn("'%s' does not exist, so Nix will use '%s' as a chroot store", stateDir, chrootStore);
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warn("'%s' does not exist, so Nix will use '%s' as a chroot store", stateDir, chrootStore);
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} else
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} else
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debug("'%s' does not exist, so Nix will use '%s' as a chroot store", stateDir, chrootStore);
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debug("'%s' does not exist, so Nix will use '%s' as a chroot store", stateDir, chrootStore);
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Store::Params params2;
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return std::make_shared<LocalStore>("local", chrootStore, params);
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params2["root"] = chrootStore;
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return std::make_shared<LocalStore>(params2);
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}
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}
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#endif
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#endif
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else
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else
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@ -1333,42 +1330,12 @@ std::shared_ptr<Store> openFromNonUri(const std::string & uri, const Store::Para
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} else if (uri == "local") {
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} else if (uri == "local") {
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return std::make_shared<LocalStore>(params);
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return std::make_shared<LocalStore>(params);
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} else if (isNonUriPath(uri)) {
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} else if (isNonUriPath(uri)) {
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Store::Params params2 = params;
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return std::make_shared<LocalStore>("local", absPath(uri), params);
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params2["root"] = absPath(uri);
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return std::make_shared<LocalStore>(params2);
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} else {
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} else {
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return nullptr;
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return nullptr;
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}
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}
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}
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}
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|
|
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// The `parseURL` function supports both IPv6 URIs as defined in
|
|
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// RFC2732, but also pure addresses. The latter one is needed here to
|
|
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// connect to a remote store via SSH (it's possible to do e.g. `ssh root@::1`).
|
|
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//
|
|
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// This function now ensures that a usable connection string is available:
|
|
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// * If the store to be opened is not an SSH store, nothing will be done.
|
|
||||||
// * If the URL looks like `root@[::1]` (which is allowed by the URL parser and probably
|
|
||||||
// needed to pass further flags), it
|
|
||||||
// will be transformed into `root@::1` for SSH (same for `[::1]` -> `::1`).
|
|
||||||
// * If the URL looks like `root@::1` it will be left as-is.
|
|
||||||
// * In any other case, the string will be left as-is.
|
|
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static std::string extractConnStr(const std::string &proto, const std::string &connStr)
|
|
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{
|
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if (proto.rfind("ssh") != std::string::npos) {
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|
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std::smatch result;
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|
||||||
std::regex v6AddrRegex("^((.*)@)?\\[(.*)\\]$");
|
|
||||||
|
|
||||||
if (std::regex_match(connStr, result, v6AddrRegex)) {
|
|
||||||
if (result[1].matched) {
|
|
||||||
return result.str(1) + result.str(3);
|
|
||||||
}
|
|
||||||
return result.str(3);
|
|
||||||
}
|
|
||||||
}
|
|
||||||
|
|
||||||
return connStr;
|
|
||||||
}
|
|
||||||
|
|
||||||
ref<Store> openStore(const std::string & uri_,
|
ref<Store> openStore(const std::string & uri_,
|
||||||
const Store::Params & extraParams)
|
const Store::Params & extraParams)
|
||||||
{
|
{
|
||||||
|
@ -1377,10 +1344,7 @@ ref<Store> openStore(const std::string & uri_,
|
||||||
auto parsedUri = parseURL(uri_);
|
auto parsedUri = parseURL(uri_);
|
||||||
params.insert(parsedUri.query.begin(), parsedUri.query.end());
|
params.insert(parsedUri.query.begin(), parsedUri.query.end());
|
||||||
|
|
||||||
auto baseURI = extractConnStr(
|
auto baseURI = parsedUri.authority.value_or("") + parsedUri.path;
|
||||||
parsedUri.scheme,
|
|
||||||
parsedUri.authority.value_or("") + parsedUri.path
|
|
||||||
);
|
|
||||||
|
|
||||||
for (auto implem : *Implementations::registered) {
|
for (auto implem : *Implementations::registered) {
|
||||||
if (implem.uriSchemes.count(parsedUri.scheme)) {
|
if (implem.uriSchemes.count(parsedUri.scheme)) {
|
||||||
|
|
|
@ -901,7 +901,14 @@ std::list<ref<Store>> getDefaultSubstituters();
|
||||||
struct StoreFactory
|
struct StoreFactory
|
||||||
{
|
{
|
||||||
std::set<std::string> uriSchemes;
|
std::set<std::string> uriSchemes;
|
||||||
std::function<std::shared_ptr<Store> (const std::string & scheme, const std::string & uri, const Store::Params & params)> create;
|
/**
|
||||||
|
* The `authorityPath` parameter is `<authority>/<path>`, or really
|
||||||
|
* whatever comes after `<scheme>://` and before `?<query-params>`.
|
||||||
|
*/
|
||||||
|
std::function<std::shared_ptr<Store> (
|
||||||
|
std::string_view scheme,
|
||||||
|
std::string_view authorityPath,
|
||||||
|
const Store::Params & params)> create;
|
||||||
std::function<std::shared_ptr<StoreConfig> ()> getConfig;
|
std::function<std::shared_ptr<StoreConfig> ()> getConfig;
|
||||||
};
|
};
|
||||||
|
|
||||||
|
@ -916,7 +923,7 @@ struct Implementations
|
||||||
StoreFactory factory{
|
StoreFactory factory{
|
||||||
.uriSchemes = T::uriSchemes(),
|
.uriSchemes = T::uriSchemes(),
|
||||||
.create =
|
.create =
|
||||||
([](const std::string & scheme, const std::string & uri, const Store::Params & params)
|
([](auto scheme, auto uri, auto & params)
|
||||||
-> std::shared_ptr<Store>
|
-> std::shared_ptr<Store>
|
||||||
{ return std::make_shared<T>(scheme, uri, params); }),
|
{ return std::make_shared<T>(scheme, uri, params); }),
|
||||||
.getConfig =
|
.getConfig =
|
||||||
|
|
|
@ -40,11 +40,12 @@ UDSRemoteStore::UDSRemoteStore(const Params & params)
|
||||||
|
|
||||||
|
|
||||||
UDSRemoteStore::UDSRemoteStore(
|
UDSRemoteStore::UDSRemoteStore(
|
||||||
const std::string scheme,
|
std::string_view scheme,
|
||||||
std::string socket_path,
|
PathView socket_path,
|
||||||
const Params & params)
|
const Params & params)
|
||||||
: UDSRemoteStore(params)
|
: UDSRemoteStore(params)
|
||||||
{
|
{
|
||||||
|
if (!socket_path.empty())
|
||||||
path.emplace(socket_path);
|
path.emplace(socket_path);
|
||||||
}
|
}
|
||||||
|
|
||||||
|
@ -54,6 +55,7 @@ std::string UDSRemoteStore::getUri()
|
||||||
if (path) {
|
if (path) {
|
||||||
return std::string("unix://") + *path;
|
return std::string("unix://") + *path;
|
||||||
} else {
|
} else {
|
||||||
|
// unix:// with no path also works. Change what we return?
|
||||||
return "daemon";
|
return "daemon";
|
||||||
}
|
}
|
||||||
}
|
}
|
||||||
|
|
|
@ -28,7 +28,10 @@ class UDSRemoteStore : public virtual UDSRemoteStoreConfig
|
||||||
public:
|
public:
|
||||||
|
|
||||||
UDSRemoteStore(const Params & params);
|
UDSRemoteStore(const Params & params);
|
||||||
UDSRemoteStore(const std::string scheme, std::string path, const Params & params);
|
UDSRemoteStore(
|
||||||
|
std::string_view scheme,
|
||||||
|
PathView path,
|
||||||
|
const Params & params);
|
||||||
|
|
||||||
std::string getUri() override;
|
std::string getUri() override;
|
||||||
|
|
||||||
|
|
|
@ -92,7 +92,7 @@ class LocalOverlayStore : public virtual LocalOverlayStoreConfig, public virtual
|
||||||
public:
|
public:
|
||||||
LocalOverlayStore(const Params & params);
|
LocalOverlayStore(const Params & params);
|
||||||
|
|
||||||
LocalOverlayStore(std::string scheme, std::string path, const Params & params)
|
LocalOverlayStore(std::string_view scheme, PathView path, const Params & params)
|
||||||
: LocalOverlayStore(params)
|
: LocalOverlayStore(params)
|
||||||
{
|
{
|
||||||
if (!path.empty())
|
if (!path.empty())
|
||||||
|
|
|
@ -10,6 +10,9 @@ happy () {
|
||||||
# We can do a read-only query just fine with a read-only store
|
# We can do a read-only query just fine with a read-only store
|
||||||
nix --store local?read-only=true path-info $dummyPath
|
nix --store local?read-only=true path-info $dummyPath
|
||||||
|
|
||||||
|
# `local://` also works.
|
||||||
|
nix --store local://?read-only=true path-info $dummyPath
|
||||||
|
|
||||||
# We can "write" an already-present store-path a read-only store, because no IO is actually required
|
# We can "write" an already-present store-path a read-only store, because no IO is actually required
|
||||||
nix-store --store local?read-only=true --add dummy
|
nix-store --store local?read-only=true --add dummy
|
||||||
}
|
}
|
||||||
|
|
Loading…
Reference in a new issue