[common/logging] Simplify logging logic and fix issues when logging before system is created (#3688)

- our logging code was bigger than spdlog itself, why???? just keep it simple
- fix issues when logging before logging system is even started
- removes the "initialized logging twice" issue
- removes uneeded indirection in file logging
- uses direct formatting instead of jumping hoopla-around the fmt::format() ressult
- code duplication and dead code removal as usual

I did explore dup2() but I think it's not worth the hassle
I did try `fwopen()` but it's better if things are just kept as-is.

there is a lot of noise because I removed a bunch of redundant files on logging and just put everything in one file

now normally this wouldn't be a good idea, however consider: the complexity of logging; it's less than 500 lines... does it really need a whole subsystem?!?!?! ITS JUST LOGGING

Signed-off-by: lizzie <lizzie@eden-emu.dev>
Reviewed-on: https://git.eden-emu.dev/eden-emu/eden/pulls/3688
Reviewed-by: crueter <crueter@eden-emu.dev>
Reviewed-by: DraVee <chimera@dravee.dev>
Reviewed-by: CamilleLaVey <camillelavey99@gmail.com>
Co-authored-by: lizzie <lizzie@eden-emu.dev>
Co-committed-by: lizzie <lizzie@eden-emu.dev>

15 files changed, 47 insertions, 20 deletions

diff --git a/src/input_common/drivers/gc_adapter.cpp b/src/input_common/drivers/gc_adapter.cpp
index 690779c6aa..25df839aa0 100644
--- a/src/input_common/drivers/gc_adapter.cpp
+++ b/src/input_common/drivers/gc_adapter.cpp
@@ -1,10 +1,13 @@
+// SPDX-FileCopyrightText: Copyright 2026 Eden Emulator Project
+// SPDX-License-Identifier: GPL-3.0-or-later
+
 // SPDX-FileCopyrightText: 2014 Dolphin Emulator Project
 // SPDX-License-Identifier: GPL-2.0-or-later
 
 #include <fmt/ranges.h>
 #include <libusb.h>
 
-#include "common/logging/log.h"
+#include "common/logging.h"
 #include "common/param_package.h"
 #include "common/polyfill_thread.h"
 #include "common/settings_input.h"
diff --git a/src/input_common/drivers/sdl_driver.cpp b/src/input_common/drivers/sdl_driver.cpp
index 81b0a2313a..948f650fb1 100644
--- a/src/input_common/drivers/sdl_driver.cpp
+++ b/src/input_common/drivers/sdl_driver.cpp
@@ -3,7 +3,7 @@
 // SPDX-FileCopyrightText: 2018 Citra Emulator Project
 // SPDX-License-Identifier: GPL-2.0-or-later
 
-#include "common/logging/log.h"
+#include "common/logging.h"
 #include "common/math_util.h"
 #include "common/param_package.h"
 #include "common/settings.h"
diff --git a/src/input_common/drivers/tas_input.cpp b/src/input_common/drivers/tas_input.cpp
index 5a7f858f16..32febc0839 100644
--- a/src/input_common/drivers/tas_input.cpp
+++ b/src/input_common/drivers/tas_input.cpp
@@ -1,3 +1,6 @@
+// SPDX-FileCopyrightText: Copyright 2026 Eden Emulator Project
+// SPDX-License-Identifier: GPL-3.0-or-later
+
 // SPDX-FileCopyrightText: Copyright 2021 yuzu Emulator Project
 // SPDX-License-Identifier: GPL-2.0-or-later
 
@@ -8,7 +11,7 @@
 #include "common/fs/file.h"
 #include "common/fs/fs_types.h"
 #include "common/fs/path_util.h"
-#include "common/logging/log.h"
+#include "common/logging.h"
 #include "common/settings.h"
 #include "input_common/drivers/tas_input.h"
 
diff --git a/src/input_common/drivers/udp_client.cpp b/src/input_common/drivers/udp_client.cpp
index 9e29d56cba..c930e19de3 100644
--- a/src/input_common/drivers/udp_client.cpp
+++ b/src/input_common/drivers/udp_client.cpp
@@ -1,4 +1,4 @@
-// SPDX-FileCopyrightText: Copyright 2025 Eden Emulator Project
+// SPDX-FileCopyrightText: Copyright 2026 Eden Emulator Project
 // SPDX-License-Identifier: GPL-3.0-or-later
 
 // SPDX-FileCopyrightText: 2018 Citra Emulator Project
@@ -9,7 +9,7 @@
 #include <boost/asio.hpp>
 #include <fmt/ranges.h>
 
-#include "common/logging/log.h"
+#include "common/logging.h"
 #include "common/param_package.h"
 #include "common/settings.h"
 #include "input_common/drivers/udp_client.h"
diff --git a/src/input_common/drivers/virtual_amiibo.cpp b/src/input_common/drivers/virtual_amiibo.cpp
index a30b10b7b3..ccb740d158 100644
--- a/src/input_common/drivers/virtual_amiibo.cpp
+++ b/src/input_common/drivers/virtual_amiibo.cpp
@@ -1,3 +1,6 @@
+// SPDX-FileCopyrightText: Copyright 2026 Eden Emulator Project
+// SPDX-License-Identifier: GPL-3.0-or-later
+
 // SPDX-FileCopyrightText: Copyright 2022 yuzu Emulator Project
 // SPDX-License-Identifier: GPL-3.0-or-later
 
@@ -7,7 +10,7 @@
 #include "common/fs/file.h"
 #include "common/fs/fs.h"
 #include "common/fs/path_util.h"
-#include "common/logging/log.h"
+#include "common/logging.h"
 #include "common/settings.h"
 #include "input_common/drivers/virtual_amiibo.h"
 
diff --git a/src/input_common/helpers/joycon_driver.cpp b/src/input_common/helpers/joycon_driver.cpp
index 0dd1c958a2..78df802b73 100644
--- a/src/input_common/helpers/joycon_driver.cpp
+++ b/src/input_common/helpers/joycon_driver.cpp
@@ -1,8 +1,11 @@
+// SPDX-FileCopyrightText: Copyright 2026 Eden Emulator Project
+// SPDX-License-Identifier: GPL-3.0-or-later
+
 // SPDX-FileCopyrightText: Copyright 2022 yuzu Emulator Project
 // SPDX-License-Identifier: GPL-2.0-or-later
 
 #include "common/input.h"
-#include "common/logging/log.h"
+#include "common/logging.h"
 #include "common/scope_exit.h"
 #include "common/swap.h"
 #include "common/thread.h"
diff --git a/src/input_common/helpers/joycon_protocol/common_protocol.cpp b/src/input_common/helpers/joycon_protocol/common_protocol.cpp
index a6eecf9802..e825afa1b7 100644
--- a/src/input_common/helpers/joycon_protocol/common_protocol.cpp
+++ b/src/input_common/helpers/joycon_protocol/common_protocol.cpp
@@ -1,8 +1,11 @@
+// SPDX-FileCopyrightText: Copyright 2026 Eden Emulator Project
+// SPDX-License-Identifier: GPL-3.0-or-later
+
 // SPDX-FileCopyrightText: Copyright 2022 yuzu Emulator Project
 // SPDX-License-Identifier: GPL-2.0-or-later
 
 #include "common/input.h"
-#include "common/logging/log.h"
+#include "common/logging.h"
 #include "input_common/helpers/joycon_protocol/common_protocol.h"
 
 namespace InputCommon::Joycon {
diff --git a/src/input_common/helpers/joycon_protocol/generic_functions.cpp b/src/input_common/helpers/joycon_protocol/generic_functions.cpp
index e9a056448c..623a7ac5c9 100644
--- a/src/input_common/helpers/joycon_protocol/generic_functions.cpp
+++ b/src/input_common/helpers/joycon_protocol/generic_functions.cpp
@@ -1,8 +1,11 @@
+// SPDX-FileCopyrightText: Copyright 2026 Eden Emulator Project
+// SPDX-License-Identifier: GPL-3.0-or-later
+
 // SPDX-FileCopyrightText: Copyright 2022 yuzu Emulator Project
 // SPDX-License-Identifier: GPL-2.0-or-later
 
 #include "common/input.h"
-#include "common/logging/log.h"
+#include "common/logging.h"
 #include "input_common/helpers/joycon_protocol/generic_functions.h"
 
 namespace InputCommon::Joycon {
diff --git a/src/input_common/helpers/joycon_protocol/irs.cpp b/src/input_common/helpers/joycon_protocol/irs.cpp
index 5bf72114da..3f09d75338 100644
--- a/src/input_common/helpers/joycon_protocol/irs.cpp
+++ b/src/input_common/helpers/joycon_protocol/irs.cpp
@@ -1,8 +1,11 @@
+// SPDX-FileCopyrightText: Copyright 2026 Eden Emulator Project
+// SPDX-License-Identifier: GPL-3.0-or-later
+
 // SPDX-FileCopyrightText: Copyright 2022 yuzu Emulator Project
 // SPDX-License-Identifier: GPL-2.0-or-later
 
 #include "common/input.h"
-#include "common/logging/log.h"
+#include "common/logging.h"
 #include "input_common/helpers/joycon_protocol/irs.h"
 
 namespace InputCommon::Joycon {
diff --git a/src/input_common/helpers/joycon_protocol/nfc.cpp b/src/input_common/helpers/joycon_protocol/nfc.cpp
index 67f789edd8..b71d0e8148 100644
--- a/src/input_common/helpers/joycon_protocol/nfc.cpp
+++ b/src/input_common/helpers/joycon_protocol/nfc.cpp
@@ -1,11 +1,11 @@
-// SPDX-FileCopyrightText: Copyright 2025 Eden Emulator Project
+// SPDX-FileCopyrightText: Copyright 2026 Eden Emulator Project
 // SPDX-License-Identifier: GPL-3.0-or-later
 
 // SPDX-FileCopyrightText: Copyright 2022 yuzu Emulator Project
 // SPDX-License-Identifier: GPL-2.0-or-later
 
 #include "common/input.h"
-#include "common/logging/log.h"
+#include "common/logging.h"
 #include "input_common/helpers/joycon_protocol/nfc.h"
 
 namespace InputCommon::Joycon {
diff --git a/src/input_common/helpers/joycon_protocol/poller.cpp b/src/input_common/helpers/joycon_protocol/poller.cpp
index abb0216473..2384981f50 100644
--- a/src/input_common/helpers/joycon_protocol/poller.cpp
+++ b/src/input_common/helpers/joycon_protocol/poller.cpp
@@ -1,10 +1,10 @@
-// SPDX-FileCopyrightText: Copyright 2025 Eden Emulator Project
+// SPDX-FileCopyrightText: Copyright 2026 Eden Emulator Project
 // SPDX-License-Identifier: GPL-3.0-or-later
 
 // SPDX-FileCopyrightText: Copyright 2022 yuzu Emulator Project
 // SPDX-License-Identifier: GPL-2.0-or-later
 
-#include "common/logging/log.h"
+#include "common/logging.h"
 #include "input_common/helpers/joycon_protocol/poller.h"
 
 namespace InputCommon::Joycon {
diff --git a/src/input_common/helpers/joycon_protocol/ringcon.cpp b/src/input_common/helpers/joycon_protocol/ringcon.cpp
index 96414fb676..2a694a273f 100644
--- a/src/input_common/helpers/joycon_protocol/ringcon.cpp
+++ b/src/input_common/helpers/joycon_protocol/ringcon.cpp
@@ -1,8 +1,11 @@
+// SPDX-FileCopyrightText: Copyright 2026 Eden Emulator Project
+// SPDX-License-Identifier: GPL-3.0-or-later
+
 // SPDX-FileCopyrightText: Copyright 2022 yuzu Emulator Project
 // SPDX-License-Identifier: GPL-2.0-or-later
 
 #include "common/input.h"
-#include "common/logging/log.h"
+#include "common/logging.h"
 #include "input_common/helpers/joycon_protocol/ringcon.h"
 
 namespace InputCommon::Joycon {
diff --git a/src/input_common/helpers/joycon_protocol/rumble.cpp b/src/input_common/helpers/joycon_protocol/rumble.cpp
index 62ad0fada0..2462167564 100644
--- a/src/input_common/helpers/joycon_protocol/rumble.cpp
+++ b/src/input_common/helpers/joycon_protocol/rumble.cpp
@@ -1,4 +1,4 @@
-// SPDX-FileCopyrightText: Copyright 2025 Eden Emulator Project
+// SPDX-FileCopyrightText: Copyright 2026 Eden Emulator Project
 // SPDX-License-Identifier: GPL-3.0-or-later
 
 // SPDX-FileCopyrightText: Copyright 2022 yuzu Emulator Project
@@ -8,7 +8,7 @@
 #include <cmath>
 
 #include "common/input.h"
-#include "common/logging/log.h"
+#include "common/logging.h"
 #include "input_common/helpers/joycon_protocol/rumble.h"
 
 namespace InputCommon::Joycon {
diff --git a/src/input_common/helpers/udp_protocol.cpp b/src/input_common/helpers/udp_protocol.cpp
index e54a8fce1d..10ebf90410 100644
--- a/src/input_common/helpers/udp_protocol.cpp
+++ b/src/input_common/helpers/udp_protocol.cpp
@@ -1,9 +1,12 @@
+// SPDX-FileCopyrightText: Copyright 2026 Eden Emulator Project
+// SPDX-License-Identifier: GPL-3.0-or-later
+
 // SPDX-FileCopyrightText: 2018 Citra Emulator Project
 // SPDX-License-Identifier: GPL-2.0-or-later
 
 #include <cstddef>
 #include <cstring>
-#include "common/logging/log.h"
+#include "common/logging.h"
 #include "input_common/helpers/udp_protocol.h"
 
 namespace InputCommon::CemuhookUDP {
diff --git a/src/input_common/input_engine.cpp b/src/input_common/input_engine.cpp
index 1e24b588e3..ccfe3444ae 100644
--- a/src/input_common/input_engine.cpp
+++ b/src/input_common/input_engine.cpp
@@ -1,9 +1,9 @@
-// SPDX-FileCopyrightText: Copyright 2025 Eden Emulator Project
+// SPDX-FileCopyrightText: Copyright 2026 Eden Emulator Project
 // SPDX-License-Identifier: GPL-3.0-or-later
 // SPDX-FileCopyrightText: Copyright 2021 yuzu Emulator Project
 // SPDX-License-Identifier: GPL-2.0-or-later
 
-#include "common/logging/log.h"
+#include "common/logging.h"
 #include "input_common/input_engine.h"
 
 namespace InputCommon {