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refactor meta db to allow alternate implementations

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This commit is contained in:
sgraves76
2024-12-03 14:25:35 -06:00
parent 62857e1372
commit c8f2485ff0
7 changed files with 187 additions and 62 deletions
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76
repertory/librepertory/include/db/i_meta_db.hpp Normal file
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@@ -0,0 +1,76 @@
/*
Copyright <2018-2024> <scott.e.graves@protonmail.com>
Permission is hereby granted, free of charge, to any person obtaining a copy
of this software and associated documentation files (the "Software"), to deal
in the Software without restriction, including without limitation the rights
to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
copies of the Software, and to permit persons to whom the Software is
furnished to do so, subject to the following conditions:
The above copyright notice and this permission notice shall be included in all
copies or substantial portions of the Software.
THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
SOFTWARE.
*/
#ifndef REPERTORY_INCLUDE_DB_I_META_DB_HPP_
#define REPERTORY_INCLUDE_DB_I_META_DB_HPP_
#include "types/repertory.hpp"
namespace repertory {
class i_meta_db {
INTERFACE_SETUP(i_meta_db);
public:
[[nodiscard]] virtual auto get_api_path(const std::string &source_path,
std::string &api_path) const
-> api_error = 0;
[[nodiscard]] virtual auto get_api_path_list() const
-> std::vector<std::string> = 0;
[[nodiscard]] virtual auto get_item_meta(const std::string &api_path,
api_meta_map &meta) const
-> api_error = 0;
[[nodiscard]] virtual auto get_item_meta(const std::string &api_path,
const std::string &key,
std::string &value) const
-> api_error = 0;
[[nodiscard]] virtual auto get_pinned_files() const
-> std::vector<std::string> = 0;
[[nodiscard]] virtual auto get_total_item_count() const -> std::uint64_t = 0;
[[nodiscard]] virtual auto get_total_size() const -> std::uint64_t = 0;
virtual void remove_api_path(const std::string &api_path) = 0;
[[nodiscard]] virtual auto remove_item_meta(const std::string &api_path,
const std::string &key)
-> api_error = 0;
[[nodiscard]] virtual auto rename_item_meta(const std::string &from_api_path,
const std::string &to_api_path)
-> api_error = 0;
[[nodiscard]] virtual auto set_item_meta(const std::string &api_path,
const std::string &key,
const std::string &value)
-> api_error = 0;
[[nodiscard]] virtual auto set_item_meta(const std::string &api_path,
const api_meta_map &meta)
-> api_error = 0;
};
} // namespace repertory
#endif // REPERTORY_INCLUDE_DB_I_META_DB_HPP_

35
repertory/librepertory/include/db/meta_db.hpp Normal file
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@@ -0,0 +1,35 @@
/*
Copyright <2018-2024> <scott.e.graves@protonmail.com>
Permission is hereby granted, free of charge, to any person obtaining a copy
of this software and associated documentation files (the "Software"), to deal
in the Software without restriction, including without limitation the rights
to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
copies of the Software, and to permit persons to whom the Software is
furnished to do so, subject to the following conditions:
The above copyright notice and this permission notice shall be included in all
copies or substantial portions of the Software.
THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
SOFTWARE.
*/
#ifndef REPERTORY_INCLUDE_DB_META_DB_HPP_
#define REPERTORY_INCLUDE_DB_META_DB_HPP_
#include "db/i_meta_db.hpp"
#include "db/sqlite_meta_db.hpp"
namespace repertory {
[[nodiscard]] inline auto create_meta_db(const app_config &cfg)
-> std::unique_ptr<i_meta_db> {
return std::make_unique<sqlite_meta_db>(cfg);
}
} // namespace repertory
#endif // REPERTORY_INCLUDE_DB_META_DB_HPP_

53
repertory/librepertory/include/providers/meta_db.hpp → repertory/librepertory/include/db/sqlite_meta_db.hpp
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@@ -19,24 +19,25 @@
OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
SOFTWARE. SOFTWARE.
*/ */
#ifndef REPERTORY_INCLUDE_PROVIDERS_META_DB_HPP_ #ifndef REPERTORY_INCLUDE_DB_SQLITE_META_DB_HPP_
#define REPERTORY_INCLUDE_PROVIDERS_META_DB_HPP_ #define REPERTORY_INCLUDE_DB_SQLITE_META_DB_HPP_
#include "db/i_meta_db.hpp"
#include "types/repertory.hpp" #include "types/repertory.hpp"
#include "utils/db/sqlite/db_common.hpp" #include "utils/db/sqlite/db_common.hpp"
namespace repertory { namespace repertory {
class app_config; class app_config;
class meta_db final { class sqlite_meta_db final : public i_meta_db {
public: public:
meta_db(const app_config &cfg); sqlite_meta_db(const app_config &cfg);
~meta_db(); ~sqlite_meta_db() override;
meta_db(const meta_db &) = delete; sqlite_meta_db(const sqlite_meta_db &) = delete;
meta_db(meta_db &&) = delete; sqlite_meta_db(sqlite_meta_db &&) = delete;
auto operator=(const meta_db &) -> meta_db & = delete; auto operator=(const sqlite_meta_db &) -> sqlite_meta_db & = delete;
auto operator=(meta_db &&) -> meta_db & = delete; auto operator=(sqlite_meta_db &&) -> sqlite_meta_db & = delete;
private: private:
utils::db::sqlite::db3_t db_; utils::db::sqlite::db3_t db_;
@@ -48,39 +49,47 @@ private:
public: public:
[[nodiscard]] auto get_api_path(const std::string &source_path, [[nodiscard]] auto get_api_path(const std::string &source_path,
std::string &api_path) -> api_error; std::string &api_path) const
-> api_error override;
[[nodiscard]] auto get_api_path_list() -> std::vector<std::string>; [[nodiscard]] auto get_api_path_list() const
-> std::vector<std::string> override;
[[nodiscard]] auto get_item_meta(const std::string &api_path, [[nodiscard]] auto get_item_meta(const std::string &api_path,
api_meta_map &meta) -> api_error; api_meta_map &meta) const
-> api_error override;
[[nodiscard]] auto get_item_meta(const std::string &api_path, [[nodiscard]] auto get_item_meta(const std::string &api_path,
const std::string &key, const std::string &key,
std::string &value) const -> api_error; std::string &value) const
-> api_error override;
[[nodiscard]] auto get_pinned_files() const -> std::vector<std::string>; [[nodiscard]] auto get_pinned_files() const
-> std::vector<std::string> override;
[[nodiscard]] auto get_total_item_count() const -> std::uint64_t; [[nodiscard]] auto get_total_item_count() const -> std::uint64_t override;
[[nodiscard]] auto get_total_size() const -> std::uint64_t; [[nodiscard]] auto get_total_size() const -> std::uint64_t override;
void remove_api_path(const std::string &api_path); void remove_api_path(const std::string &api_path) override;
[[nodiscard]] auto remove_item_meta(const std::string &api_path, [[nodiscard]] auto remove_item_meta(const std::string &api_path,
const std::string &key) -> api_error; const std::string &key)
-> api_error override;
[[nodiscard]] auto rename_item_meta(const std::string &from_api_path, [[nodiscard]] auto rename_item_meta(const std::string &from_api_path,
const std::string &to_api_path) const std::string &to_api_path)
-> api_error; -> api_error override;
[[nodiscard]] auto set_item_meta(const std::string &api_path, [[nodiscard]] auto set_item_meta(const std::string &api_path,
const std::string &key, const std::string &key,
const std::string &value) -> api_error; const std::string &value)
-> api_error override;
[[nodiscard]] auto set_item_meta(const std::string &api_path, [[nodiscard]] auto set_item_meta(const std::string &api_path,
const api_meta_map &meta) -> api_error; const api_meta_map &meta)
-> api_error override;
}; };
} // namespace repertory } // namespace repertory
#endif // REPERTORY_INCLUDE_PROVIDERS_META_DB_HPP_ #endif // REPERTORY_INCLUDE_DB_SQLITE_META_DB_HPP_

8
repertory/librepertory/include/providers/base_provider.hpp
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@@ -22,8 +22,8 @@
#ifndef REPERTORY_INCLUDE_PROVIDERS_BASE_PROVIDER_HPP_ #ifndef REPERTORY_INCLUDE_PROVIDERS_BASE_PROVIDER_HPP_
#define REPERTORY_INCLUDE_PROVIDERS_BASE_PROVIDER_HPP_ #define REPERTORY_INCLUDE_PROVIDERS_BASE_PROVIDER_HPP_
#include "db/i_meta_db.hpp"
#include "providers/i_provider.hpp" #include "providers/i_provider.hpp"
#include "providers/meta_db.hpp"
#include "types/repertory.hpp" #include "types/repertory.hpp"
namespace repertory { namespace repertory {
@@ -49,7 +49,7 @@ private:
private: private:
api_item_added_callback api_item_added_; api_item_added_callback api_item_added_;
std::unique_ptr<meta_db> db3_; std::unique_ptr<i_meta_db> db3_;
i_file_manager *fm_{}; i_file_manager *fm_{};
private: private:
@@ -106,9 +106,9 @@ protected:
return config_; return config_;
} }
[[nodiscard]] auto get_db() -> meta_db & { return *db3_; } [[nodiscard]] auto get_db() -> i_meta_db & { return *db3_; }
[[nodiscard]] auto get_db() const -> const meta_db & { return *db3_; } [[nodiscard]] auto get_db() const -> const i_meta_db & { return *db3_; }
[[nodiscard]] virtual auto [[nodiscard]] virtual auto
get_directory_items_impl(const std::string &api_path, get_directory_items_impl(const std::string &api_path,

51
repertory/librepertory/src/providers/meta_db.cpp → repertory/librepertory/src/db/sqlite_meta_db.cpp
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@@ -19,7 +19,7 @@
OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
SOFTWARE. SOFTWARE.
*/ */
#include "providers/meta_db.hpp" #include "db/sqlite_meta_db.hpp"
#include "app_config.hpp" #include "app_config.hpp"
#include "utils/db/sqlite/db_common.hpp" #include "utils/db/sqlite/db_common.hpp"
@@ -31,7 +31,7 @@
#include "utils/string.hpp" #include "utils/string.hpp"
namespace repertory { namespace repertory {
meta_db::meta_db(const app_config &cfg) { sqlite_meta_db::sqlite_meta_db(const app_config &cfg) {
REPERTORY_USES_FUNCTION_NAME(); REPERTORY_USES_FUNCTION_NAME();
const std::map<std::string, std::string> sql_create_tables{ const std::map<std::string, std::string> sql_create_tables{
@@ -55,10 +55,10 @@ meta_db::meta_db(const app_config &cfg) {
sql_create_tables); sql_create_tables);
} }
meta_db::~meta_db() { db_.reset(); } sqlite_meta_db::~sqlite_meta_db() { db_.reset(); }
auto meta_db::get_api_path(const std::string &source_path, auto sqlite_meta_db::get_api_path(const std::string &source_path,
std::string &api_path) -> api_error { std::string &api_path) const -> api_error {
auto result = utils::db::sqlite::db_select{*db_, table_name} auto result = utils::db::sqlite::db_select{*db_, table_name}
.column("api_path") .column("api_path")
.where("source_path") .where("source_path")
@@ -76,7 +76,7 @@ auto meta_db::get_api_path(const std::string &source_path,
return api_error::item_not_found; return api_error::item_not_found;
} }
auto meta_db::get_api_path_list() -> std::vector<std::string> { auto sqlite_meta_db::get_api_path_list() const -> std::vector<std::string> {
std::vector<std::string> ret{}; std::vector<std::string> ret{};
auto result = auto result =
@@ -91,8 +91,8 @@ auto meta_db::get_api_path_list() -> std::vector<std::string> {
return ret; return ret;
} }
auto meta_db::get_item_meta(const std::string &api_path, api_meta_map &meta) auto sqlite_meta_db::get_item_meta(const std::string &api_path,
-> api_error { api_meta_map &meta) const -> api_error {
REPERTORY_USES_FUNCTION_NAME(); REPERTORY_USES_FUNCTION_NAME();
auto result = utils::db::sqlite::db_select{*db_, table_name} auto result = utils::db::sqlite::db_select{*db_, table_name}
@@ -131,8 +131,9 @@ auto meta_db::get_item_meta(const std::string &api_path, api_meta_map &meta)
return api_error::error; return api_error::error;
} }
auto meta_db::get_item_meta(const std::string &api_path, const std::string &key, auto sqlite_meta_db::get_item_meta(const std::string &api_path,
std::string &value) const -> api_error { const std::string &key,
std::string &value) const -> api_error {
REPERTORY_USES_FUNCTION_NAME(); REPERTORY_USES_FUNCTION_NAME();
auto result = utils::db::sqlite::db_select{*db_, table_name} auto result = utils::db::sqlite::db_select{*db_, table_name}
@@ -176,7 +177,7 @@ auto meta_db::get_item_meta(const std::string &api_path, const std::string &key,
return api_error::error; return api_error::error;
} }
auto meta_db::get_pinned_files() const -> std::vector<std::string> { auto sqlite_meta_db::get_pinned_files() const -> std::vector<std::string> {
REPERTORY_USES_FUNCTION_NAME(); REPERTORY_USES_FUNCTION_NAME();
std::vector<std::string> ret{}; std::vector<std::string> ret{};
@@ -200,7 +201,7 @@ auto meta_db::get_pinned_files() const -> std::vector<std::string> {
return ret; return ret;
} }
auto meta_db::get_total_item_count() const -> std::uint64_t { auto sqlite_meta_db::get_total_item_count() const -> std::uint64_t {
REPERTORY_USES_FUNCTION_NAME(); REPERTORY_USES_FUNCTION_NAME();
std::uint64_t ret{}; std::uint64_t ret{};
@@ -223,7 +224,7 @@ auto meta_db::get_total_item_count() const -> std::uint64_t {
return ret; return ret;
} }
auto meta_db::get_total_size() const -> std::uint64_t { auto sqlite_meta_db::get_total_size() const -> std::uint64_t {
REPERTORY_USES_FUNCTION_NAME(); REPERTORY_USES_FUNCTION_NAME();
try { try {
@@ -245,7 +246,7 @@ auto meta_db::get_total_size() const -> std::uint64_t {
return 0U; return 0U;
} }
void meta_db::remove_api_path(const std::string &api_path) { void sqlite_meta_db::remove_api_path(const std::string &api_path) {
REPERTORY_USES_FUNCTION_NAME(); REPERTORY_USES_FUNCTION_NAME();
auto result = utils::db::sqlite::db_delete{*db_, table_name} auto result = utils::db::sqlite::db_delete{*db_, table_name}
@@ -258,8 +259,8 @@ void meta_db::remove_api_path(const std::string &api_path) {
} }
} }
auto meta_db::remove_item_meta(const std::string &api_path, auto sqlite_meta_db::remove_item_meta(const std::string &api_path,
const std::string &key) -> api_error { const std::string &key) -> api_error {
api_meta_map meta{}; api_meta_map meta{};
auto res = get_item_meta(api_path, meta); auto res = get_item_meta(api_path, meta);
if (res != api_error::success) { if (res != api_error::success) {
@@ -270,8 +271,9 @@ auto meta_db::remove_item_meta(const std::string &api_path,
return update_item_meta(api_path, meta); return update_item_meta(api_path, meta);
} }
auto meta_db::rename_item_meta(const std::string &from_api_path, auto sqlite_meta_db::rename_item_meta(const std::string &from_api_path,
const std::string &to_api_path) -> api_error { const std::string &to_api_path)
-> api_error {
api_meta_map meta{}; api_meta_map meta{};
auto res = get_item_meta(from_api_path, meta); auto res = get_item_meta(from_api_path, meta);
if (res != api_error::success) { if (res != api_error::success) {
@@ -282,13 +284,14 @@ auto meta_db::rename_item_meta(const std::string &from_api_path,
return update_item_meta(to_api_path, meta); return update_item_meta(to_api_path, meta);
} }
auto meta_db::set_item_meta(const std::string &api_path, const std::string &key, auto sqlite_meta_db::set_item_meta(const std::string &api_path,
const std::string &value) -> api_error { const std::string &key,
const std::string &value) -> api_error {
return set_item_meta(api_path, {{key, value}}); return set_item_meta(api_path, {{key, value}});
} }
auto meta_db::set_item_meta(const std::string &api_path, auto sqlite_meta_db::set_item_meta(const std::string &api_path,
const api_meta_map &meta) -> api_error { const api_meta_map &meta) -> api_error {
api_meta_map existing_meta{}; api_meta_map existing_meta{};
if (get_item_meta(api_path, existing_meta) != api_error::success) { if (get_item_meta(api_path, existing_meta) != api_error::success) {
// TODO handle error // TODO handle error
@@ -301,8 +304,8 @@ auto meta_db::set_item_meta(const std::string &api_path,
return update_item_meta(api_path, existing_meta); return update_item_meta(api_path, existing_meta);
} }
auto meta_db::update_item_meta(const std::string &api_path, api_meta_map meta) auto sqlite_meta_db::update_item_meta(const std::string &api_path,
-> api_error { api_meta_map meta) -> api_error {
REPERTORY_USES_FUNCTION_NAME(); REPERTORY_USES_FUNCTION_NAME();
auto directory = utils::string::to_bool(meta[META_DIRECTORY]); auto directory = utils::string::to_bool(meta[META_DIRECTORY]);

3
repertory/librepertory/src/providers/base_provider.cpp
View File

@@ -22,6 +22,7 @@
#include "providers/base_provider.hpp" #include "providers/base_provider.hpp"
#include "app_config.hpp" #include "app_config.hpp"
#include "db/meta_db.hpp"
#include "events/event_system.hpp" #include "events/event_system.hpp"
#include "events/events.hpp" #include "events/events.hpp"
#include "file_manager/i_file_manager.hpp" #include "file_manager/i_file_manager.hpp"
@@ -716,7 +717,7 @@ auto base_provider::start(api_item_added_callback api_item_added,
api_item_added_ = api_item_added; api_item_added_ = api_item_added;
fm_ = mgr; fm_ = mgr;
db3_ = std::make_unique<meta_db>(config_); db3_ = create_meta_db(config_);
api_meta_map meta{}; api_meta_map meta{};
if (get_item_meta("/", meta) == api_error::item_not_found) { if (get_item_meta("/", meta) == api_error::item_not_found) {

23
repertory/repertory_test/include/fixtures/fuse_fixture.hpp
View File

@@ -27,10 +27,11 @@
#include "app_config.hpp" #include "app_config.hpp"
#include "comm/curl/curl_comm.hpp" #include "comm/curl/curl_comm.hpp"
#include "db/i_meta_db.hpp"
#include "db/meta_db.hpp"
#include "drives/fuse/fuse_drive.hpp" #include "drives/fuse/fuse_drive.hpp"
#include "platform/platform.hpp" #include "platform/platform.hpp"
#include "providers/encrypt/encrypt_provider.hpp" #include "providers/encrypt/encrypt_provider.hpp"
#include "providers/meta_db.hpp"
#include "providers/s3/s3_provider.hpp" #include "providers/s3/s3_provider.hpp"
#include "providers/sia/sia_provider.hpp" #include "providers/sia/sia_provider.hpp"
#include "types/repertory.hpp" #include "types/repertory.hpp"
@@ -76,7 +77,7 @@ public:
static provider_type current_provider; static provider_type current_provider;
static std::vector<std::string> drive_args; static std::vector<std::string> drive_args;
static std::vector<std::string> drive_args2; static std::vector<std::string> drive_args2;
static std::unique_ptr<meta_db> meta; static std::unique_ptr<i_meta_db> meta;
static std::string mount_location; static std::string mount_location;
static std::string mount_location2; static std::string mount_location2;
@@ -122,7 +123,7 @@ protected:
}); });
} }
meta = std::make_unique<meta_db>(*config); meta = create_meta_db(*config);
execute_mount(drive_args, mount_location); execute_mount(drive_args, mount_location);
}; };
@@ -164,7 +165,7 @@ protected:
}); });
} }
meta = std::make_unique<meta_db>(*config); meta = create_meta_db(*config);
execute_mount(drive_args, mount_location); execute_mount(drive_args, mount_location);
}; };
@@ -257,8 +258,8 @@ public:
return file_path; return file_path;
} }
static auto create_file_and_test(std::string &file_name, static auto create_file_and_test(std::string &file_name, mode_t perms)
mode_t perms) -> std::string { -> std::string {
file_name += std::to_string(++idx); file_name += std::to_string(++idx);
auto file_path = utils::path::combine(mount_location, {file_name}); auto file_path = utils::path::combine(mount_location, {file_name});
@@ -276,7 +277,7 @@ public:
EXPECT_TRUE(utils::file::file(file_path).exists()); EXPECT_TRUE(utils::file::file(file_path).exists());
EXPECT_FALSE(utils::file::directory(file_path).exists()); EXPECT_FALSE(utils::file::directory(file_path).exists());
struct stat64 unix_st {}; struct stat64 unix_st{};
EXPECT_EQ(0, stat64(file_path.c_str(), &unix_st)); EXPECT_EQ(0, stat64(file_path.c_str(), &unix_st));
EXPECT_EQ(getgid(), unix_st.st_gid); EXPECT_EQ(getgid(), unix_st.st_gid);
EXPECT_EQ(getuid(), unix_st.st_uid); EXPECT_EQ(getuid(), unix_st.st_uid);
@@ -288,8 +289,8 @@ public:
return create_file_and_test(file_name, ACCESSPERMS); return create_file_and_test(file_name, ACCESSPERMS);
} }
static auto create_directory_and_test(std::string &dir_name, static auto create_directory_and_test(std::string &dir_name, mode_t perms)
mode_t perms) -> std::string { -> std::string {
dir_name += std::to_string(++idx); dir_name += std::to_string(++idx);
auto dir_path = utils::path::combine(mount_location, {dir_name}); auto dir_path = utils::path::combine(mount_location, {dir_name});
@@ -298,7 +299,7 @@ public:
EXPECT_TRUE(utils::file::directory(dir_path).exists()); EXPECT_TRUE(utils::file::directory(dir_path).exists());
EXPECT_FALSE(utils::file::file(dir_path).exists()); EXPECT_FALSE(utils::file::file(dir_path).exists());
struct stat64 unix_st {}; struct stat64 unix_st{};
EXPECT_EQ(0, stat64(dir_path.c_str(), &unix_st)); EXPECT_EQ(0, stat64(dir_path.c_str(), &unix_st));
EXPECT_EQ(getgid(), unix_st.st_gid); EXPECT_EQ(getgid(), unix_st.st_gid);
EXPECT_EQ(getuid(), unix_st.st_uid); EXPECT_EQ(getuid(), unix_st.st_uid);
@@ -391,7 +392,7 @@ template <typename provider_t>
std::vector<std::string> fuse_test<provider_t>::drive_args2; std::vector<std::string> fuse_test<provider_t>::drive_args2;
template <typename provider_t> template <typename provider_t>
std::unique_ptr<meta_db> fuse_test<provider_t>::meta{}; std::unique_ptr<i_meta_db> fuse_test<provider_t>::meta{};
template <typename provider_t> template <typename provider_t>
std::string fuse_test<provider_t>::mount_location; std::string fuse_test<provider_t>::mount_location;