start: init start-hyprland and safe mode (#12484)

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Vaxry 2025-12-05 15:40:03 +00:00 committed by GitHub
parent ec6756f961
commit 016eb7a23d
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GPG key ID: B5690EEEBB952194
22 changed files with 550 additions and 28 deletions

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@ -119,13 +119,13 @@ set(GLES_VERSION "GLES3")
find_package(OpenGL REQUIRED COMPONENTS ${GLES_VERSION})
set(AQUAMARINE_MINIMUM_VERSION 0.9.3)
set(HYPERLANG_MINIMUM_VERSION 0.3.2)
set(HYPRLANG_MINIMUM_VERSION 0.6.7)
set(HYPRCURSOR_MINIMUM_VERSION 0.1.7)
set(HYPRUTILS_MINIMUM_VERSION 0.10.2)
set(HYPRGRAPHICS_MINIMUM_VERSION 0.1.6)
pkg_check_modules(aquamarine_dep REQUIRED IMPORTED_TARGET aquamarine>=${AQUAMARINE_MINIMUM_VERSION})
pkg_check_modules(hyprlang_dep REQUIRED IMPORTED_TARGET hyprlang>=${HYPERLANG_MINIMUM_VERSION})
pkg_check_modules(hyprlang_dep REQUIRED IMPORTED_TARGET hyprlang>=${HYPRLANG_MINIMUM_VERSION})
pkg_check_modules(hyprcursor_dep REQUIRED IMPORTED_TARGET hyprcursor>=${HYPRCURSOR_MINIMUM_VERSION})
pkg_check_modules(hyprutils_dep REQUIRED IMPORTED_TARGET hyprutils>=${HYPRUTILS_MINIMUM_VERSION})
pkg_check_modules(hyprgraphics_dep REQUIRED IMPORTED_TARGET hyprgraphics>=${HYPRGRAPHICS_MINIMUM_VERSION})
@ -545,6 +545,7 @@ protocolwayland()
# tools
add_subdirectory(hyprctl)
add_subdirectory(start)
if(NO_HYPRPM)
message(STATUS "hyprpm is disabled")

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@ -27,7 +27,7 @@ monitor=,preferred,auto,auto
# Set programs that you use
$terminal = kitty
$fileManager = dolphin
$menu = wofi --show drun
$menu = hyprlauncher
#################
@ -329,3 +329,13 @@ windowrule {
no_focus = true
}
# Hyprland-run windowrule
windowrule {
name = move-hyprland-run
match:class = hyprland-run
move = 20 monitor_h-120
float = yes
}

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@ -1,7 +1,7 @@
[Desktop Entry]
Name=Hyprland
Comment=An intelligent dynamic tiling Wayland compositor
Exec=Hyprland
Exec=start-hyprland
Type=Application
DesktopNames=Hyprland
Keywords=tiling;wayland;compositor;

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@ -4,5 +4,5 @@ Name: Hyprland
URL: https://github.com/hyprwm/Hyprland
Description: Hyprland header files
Version: @HYPRLAND_VERSION@
Requires: aquamarine >= @AQUAMARINE_MINIMUM_VERSION@, hyprcursor >= @HYPRCURSOR_MINIMUM_VERSION@, hyprgraphics >= @HYPRGRAPHICS_MINIMUM_VERSION@, hyprlang >= @HYPERLANG_MINIMUM_VERSION@, hyprutils >= @HYPRUTILS_MINIMUM_VERSION@, libdrm, egl, cairo, xkbcommon >= @XKBCOMMMON_MINIMUM_VERSION@, libinput >= @LIBINPUT_MINIMUM_VERSION@, wayland-server >= @WAYLAND_SERVER_MINIMUM_VERSION@@PKGCONFIG_XWAYLAND_DEPENDENCIES@
Requires: aquamarine >= @AQUAMARINE_MINIMUM_VERSION@, hyprcursor >= @HYPRCURSOR_MINIMUM_VERSION@, hyprgraphics >= @HYPRGRAPHICS_MINIMUM_VERSION@, hyprlang >= @HYPRLANG_MINIMUM_VERSION@, hyprutils >= @HYPRUTILS_MINIMUM_VERSION@, libdrm, egl, cairo, xkbcommon >= @XKBCOMMMON_MINIMUM_VERSION@, libinput >= @LIBINPUT_MINIMUM_VERSION@, wayland-server >= @WAYLAND_SERVER_MINIMUM_VERSION@@PKGCONFIG_XWAYLAND_DEPENDENCIES@
Cflags: -I${prefix} -I${prefix}/hyprland/protocols -I${prefix}/hyprland

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@ -585,6 +585,7 @@ bool CPluginManager::updateHeaders(bool force) {
std::filesystem::remove_all(WORKINGDIR);
auto HEADERSVALID = headersValid();
if (HEADERSVALID == HEADERS_OK || HEADERSVALID == HEADERS_MISMATCHED || HEADERSVALID == HEADERS_ABI_MISMATCH) {
progress.printMessageAbove(successString("installed headers"));
progress.m_iSteps = 5;

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@ -93,6 +93,7 @@ in
../LICENSE
../protocols
../src
../start
../systemd
../VERSION
(fs.fileFilter (file: file.hasExt "1") ../docs)

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@ -142,6 +142,10 @@ static void aqLog(Aquamarine::eBackendLogLevel level, std::string msg) {
Debug::log(aqLevelToHl(level), "[AQ] {}", msg);
}
void CCompositor::setWatchdogFd(int fd) {
m_watchdogWriteFd = Hyprutils::OS::CFileDescriptor{fd};
}
void CCompositor::bumpNofile() {
if (!getrlimit(RLIMIT_NOFILE, &m_originalNofile))
Debug::log(LOG, "Old rlimit: soft -> {}, hard -> {}", m_originalNofile.rlim_cur, m_originalNofile.rlim_max);
@ -543,6 +547,9 @@ void CCompositor::cleanup() {
if (!m_wlDisplay)
return;
if (m_watchdogWriteFd.isValid())
write(m_watchdogWriteFd.get(), "end", 3);
signal(SIGABRT, SIG_DFL);
signal(SIGSEGV, SIG_DFL);
@ -796,6 +803,8 @@ void CCompositor::startCompositor() {
createLockFile();
EMIT_HOOK_EVENT("ready", nullptr);
if (m_watchdogWriteFd.isValid())
write(m_watchdogWriteFd.get(), "vax", 3);
// This blocks until we are done.
Debug::log(LOG, "Hyprland is ready, running the event loop!");
@ -2459,6 +2468,7 @@ std::vector<PHLWORKSPACE> CCompositor::getWorkspacesCopy() {
void CCompositor::performUserChecks() {
static auto PNOCHECKXDG = CConfigValue<Hyprlang::INT>("misc:disable_xdg_env_checks");
static auto PNOCHECKGUIUTILS = CConfigValue<Hyprlang::INT>("misc:disable_hyprland_guiutils_check");
static auto PNOWATCHDOG = CConfigValue<Hyprlang::INT>("misc:disable_watchdog_warning");
if (!*PNOCHECKXDG) {
const auto CURRENT_DESKTOP_ENV = getenv("XDG_CURRENT_DESKTOP");
@ -2470,15 +2480,63 @@ void CCompositor::performUserChecks() {
}
if (!*PNOCHECKGUIUTILS) {
if (!NFsUtils::executableExistsInPath("hyprland-dialog")) {
if (!NFsUtils::executableExistsInPath("hyprland-dialog"))
g_pHyprNotificationOverlay->addNotification(I18n::i18nEngine()->localize(I18n::TXT_KEY_NOTIF_NO_GUIUTILS), CHyprColor{}, 15000, ICON_WARNING);
}
}
if (g_pHyprOpenGL->m_failedAssetsNo > 0) {
g_pHyprNotificationOverlay->addNotification(I18n::i18nEngine()->localize(I18n::TXT_KEY_NOTIF_FAILED_ASSETS, {{"count", std::to_string(g_pHyprOpenGL->m_failedAssetsNo)}}),
CHyprColor{1.0, 0.1, 0.1, 1.0}, 15000, ICON_ERROR);
}
if (!m_watchdogWriteFd.isValid() && !*PNOWATCHDOG)
g_pHyprNotificationOverlay->addNotification(I18n::i18nEngine()->localize(I18n::TXT_KEY_NOTIF_NO_WATCHDOG), CHyprColor{1.0, 0.1, 0.1, 1.0}, 15000, ICON_WARNING);
if (m_safeMode)
openSafeModeBox();
}
void CCompositor::openSafeModeBox() {
const auto OPT_LOAD = I18n::i18nEngine()->localize(I18n::TXT_KEY_SAFE_MODE_BUTTON_LOAD_CONFIG);
const auto OPT_OPEN = I18n::i18nEngine()->localize(I18n::TXT_KEY_SAFE_MODE_BUTTON_OPEN_CRASH_REPORT_DIR);
const auto OPT_OK = I18n::i18nEngine()->localize(I18n::TXT_KEY_SAFE_MODE_BUTTON_UNDERSTOOD);
auto box = CAsyncDialogBox::create(I18n::i18nEngine()->localize(I18n::TXT_KEY_SAFE_MODE_TITLE), I18n::i18nEngine()->localize(I18n::TXT_KEY_SAFE_MODE_DESCRIPTION),
{
OPT_LOAD,
OPT_OPEN,
OPT_OK,
});
box->open()->then([OPT_LOAD, OPT_OK, OPT_OPEN, this](SP<CPromiseResult<std::string>> result) {
if (result->hasError())
return;
const auto RES = result->result();
if (RES.starts_with(OPT_LOAD)) {
m_safeMode = false;
g_pConfigManager->reload();
} else if (RES.starts_with(OPT_OPEN)) {
std::string reportPath;
const auto HOME = getenv("HOME");
const auto CACHE_HOME = getenv("XDG_CACHE_HOME");
if (CACHE_HOME && CACHE_HOME[0] != '\0') {
reportPath += CACHE_HOME;
reportPath += "/hyprland/";
} else if (HOME && HOME[0] != '\0') {
reportPath += HOME;
reportPath += "/.cache/hyprland/";
}
Hyprutils::OS::CProcess proc("xdg-open", {reportPath});
proc.runAsync();
// reopen
openSafeModeBox();
}
});
}
void CCompositor::moveWindowToWorkspaceSafe(PHLWINDOW pWindow, PHLWORKSPACE pWorkspace) {

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@ -40,6 +40,7 @@ class CCompositor {
} m_drmRenderNode;
bool m_initialized = false;
bool m_safeMode = false;
SP<Aquamarine::CBackend> m_aqBackend;
std::string m_hyprTempDataRoot = "";
@ -65,6 +66,7 @@ class CCompositor {
void cleanup();
void bumpNofile();
void restoreNofile();
void setWatchdogFd(int fd);
bool m_readyToProcess = false;
bool m_sessionActive = true;
@ -167,21 +169,23 @@ class CCompositor {
std::string m_explicitConfigPath;
private:
void initAllSignals();
void removeAllSignals();
void cleanEnvironment();
void setRandomSplash();
void initManagers(eManagersInitStage stage);
void prepareFallbackOutput();
void createLockFile();
void removeLockFile();
void setMallocThreshold();
void initAllSignals();
void removeAllSignals();
void cleanEnvironment();
void setRandomSplash();
void initManagers(eManagersInitStage stage);
void prepareFallbackOutput();
void createLockFile();
void removeLockFile();
void setMallocThreshold();
void openSafeModeBox();
uint64_t m_hyprlandPID = 0;
wl_event_source* m_critSigSource = nullptr;
rlimit m_originalNofile = {};
uint64_t m_hyprlandPID = 0;
wl_event_source* m_critSigSource = nullptr;
rlimit m_originalNofile = {};
Hyprutils::OS::CFileDescriptor m_watchdogWriteFd;
std::vector<PHLWORKSPACEREF> m_workspaces;
std::vector<PHLWORKSPACEREF> m_workspaces;
};
inline UP<CCompositor> g_pCompositor;

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@ -1321,6 +1321,12 @@ inline static const std::vector<SConfigOptionDescription> CONFIG_OPTIONS = {
.type = CONFIG_OPTION_BOOL,
.data = SConfigOptionDescription::SBoolData{false},
},
SConfigOptionDescription{
.value = "misc:disable_watchdog_warning",
.description = "whether to disable the warning about not using start-hyprland.",
.type = CONFIG_OPTION_BOOL,
.data = SConfigOptionDescription::SBoolData{false},
},
SConfigOptionDescription{
.value = "misc:lockdead_screen_delay",
.description = "the delay in ms after the lockdead screen appears if the lock screen did not appear after a lock event occurred.",

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@ -498,6 +498,7 @@ CConfigManager::CConfigManager() {
registerConfigVar("misc:render_unfocused_fps", Hyprlang::INT{15});
registerConfigVar("misc:disable_xdg_env_checks", Hyprlang::INT{0});
registerConfigVar("misc:disable_hyprland_guiutils_check", Hyprlang::INT{0});
registerConfigVar("misc:disable_watchdog_warning", Hyprlang::INT{0});
registerConfigVar("misc:lockdead_screen_delay", Hyprlang::INT{1000});
registerConfigVar("misc:enable_anr_dialog", Hyprlang::INT{1});
registerConfigVar("misc:anr_missed_pings", Hyprlang::INT{5});
@ -914,7 +915,7 @@ void CConfigManager::reloadRuleConfigs() {
}
}
std::optional<std::string> CConfigManager::generateConfig(std::string configPath) {
std::optional<std::string> CConfigManager::generateConfig(std::string configPath, bool safeMode) {
std::string parentPath = std::filesystem::path(configPath).parent_path();
if (!parentPath.empty()) {
@ -931,7 +932,14 @@ std::optional<std::string> CConfigManager::generateConfig(std::string configPath
Debug::log(WARN, "No config file found; attempting to generate.");
std::ofstream ofs;
ofs.open(configPath, std::ios::trunc);
ofs << AUTOGENERATED_PREFIX << EXAMPLE_CONFIG;
if (!safeMode) {
ofs << AUTOGENERATED_PREFIX;
ofs << EXAMPLE_CONFIG;
} else {
std::string n = std::string{EXAMPLE_CONFIG};
replaceInString(n, "\n$menu = hyprlauncher\n", "\n$menu = hyprland-run\n");
ofs << n;
}
ofs.close();
if (ofs.fail())
@ -941,7 +949,16 @@ std::optional<std::string> CConfigManager::generateConfig(std::string configPath
}
std::string CConfigManager::getMainConfigPath() {
static std::string CONFIG_PATH = [this]() -> std::string {
static bool lastSafeMode = g_pCompositor->m_safeMode;
static auto getCfgPath = [this]() -> std::string {
lastSafeMode = g_pCompositor->m_safeMode;
m_firstExecDispatched = false;
if (g_pCompositor->m_safeMode) {
const auto CONFIGPATH = g_pCompositor->m_instancePath + "/recoverycfg.conf";
return generateConfig(CONFIGPATH, false).value();
}
if (!g_pCompositor->m_explicitConfigPath.empty())
return g_pCompositor->m_explicitConfigPath;
@ -956,7 +973,13 @@ std::string CConfigManager::getMainConfigPath() {
return generateConfig(CONFIGPATH).value();
} else
throw std::runtime_error("Neither HOME nor XDG_CONFIG_HOME are set in the environment. Could not find config in XDG_CONFIG_DIRS or /etc/xdg.");
}();
};
static std::string CONFIG_PATH = getCfgPath();
if (lastSafeMode != g_pCompositor->m_safeMode) {
CONFIG_PATH = getCfgPath();
m_config->changeRootPath(CONFIG_PATH.c_str());
}
return CONFIG_PATH;
}
@ -1415,7 +1438,6 @@ void CConfigManager::init() {
reload();
});
const std::string CONFIGPATH = getMainConfigPath();
reload();
m_isFirstLaunch = false;
@ -1637,7 +1659,12 @@ void CConfigManager::dispatchExecOnce() {
g_pInputManager->setTabletConfigs();
// check for user's possible errors with their setup and notify them if needed
g_pCompositor->performUserChecks();
// this is additionally guarded because exiting safe mode will re-run this.
static bool once = true;
if (once) {
g_pCompositor->performUserChecks();
once = false;
}
}
void CConfigManager::dispatchExecShutdown() {

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@ -317,7 +317,7 @@ class CConfigManager {
// internal methods
void setDefaultAnimationVars();
std::optional<std::string> resetHLConfig();
std::optional<std::string> generateConfig(std::string configPath);
std::optional<std::string> generateConfig(std::string configPath, bool safeMode = false);
std::optional<std::string> verifyConfigExists();
void reloadRuleConfigs();

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@ -99,6 +99,18 @@ I18n::CI18nEngine::CI18nEngine() {
huEngine->registerEntry("en_US", TXT_KEY_NOTIF_FAILED_TO_LOAD_PLUGIN, "Failed to load plugin {name}: {error}");
huEngine->registerEntry("en_US", TXT_KEY_NOTIF_CM_RELOAD_FAILED, "CM shader reload failed, falling back to rgba/rgbx.");
huEngine->registerEntry("en_US", TXT_KEY_NOTIF_WIDE_COLOR_NOT_10B, "Monitor {name}: wide color gamut is enabled but the display is not in 10-bit mode.");
huEngine->registerEntry("en_US", TXT_KEY_NOTIF_NO_WATCHDOG,
"Hyprland was started without start-hyprland. This is highly not recommended unless you are in a debugging environment.");
huEngine->registerEntry("en_US", TXT_KEY_SAFE_MODE_TITLE, "Safe Mode");
huEngine->registerEntry("en_US", TXT_KEY_SAFE_MODE_DESCRIPTION,
"Hyprland has been launched in safe mode, which means your last session crashed.\nSafe mode prevents your config from being loaded. You can "
"troubleshoot in this environment, or load your config with the button below.\nDefault keybinds apply: SUPER+Q for kitty, SUPER+R for a basic runner, "
"SUPER+M to exit.\nRestarting "
"Hyprland will launch in normal mode again.");
huEngine->registerEntry("en_US", TXT_KEY_SAFE_MODE_BUTTON_LOAD_CONFIG, "Load config");
huEngine->registerEntry("en_US", TXT_KEY_SAFE_MODE_BUTTON_OPEN_CRASH_REPORT_DIR, "Open crash report directory");
huEngine->registerEntry("en_US", TXT_KEY_SAFE_MODE_BUTTON_UNDERSTOOD, "Ok, close this");
// as_IN (Assamese)
huEngine->registerEntry("as_IN", TXT_KEY_ANR_TITLE, "এপ্লিকেচনে উত্তৰ দিয়া নাই");
@ -619,6 +631,17 @@ I18n::CI18nEngine::CI18nEngine() {
huEngine->registerEntry("ja_JP", TXT_KEY_NOTIF_FAILED_TO_LOAD_PLUGIN, "プラグイン{name}のロード失敗: {error}");
huEngine->registerEntry("ja_JP", TXT_KEY_NOTIF_CM_RELOAD_FAILED, "CMシェーダーのリロード失敗、rgba/rgbxを使いました。");
huEngine->registerEntry("ja_JP", TXT_KEY_NOTIF_WIDE_COLOR_NOT_10B, "画面{name}広い色域は設定していますけど、画面は10ビットモードに設定されていません。");
huEngine->registerEntry("ja_JP", TXT_KEY_NOTIF_NO_WATCHDOG, "Hyprlandはstart-hyprlandなしで実行されました。これはデバグ環境以外でおすすめしません。");
huEngine->registerEntry("ja_JP", TXT_KEY_SAFE_MODE_TITLE, "安全モード");
huEngine->registerEntry(
"ja_JP", TXT_KEY_SAFE_MODE_DESCRIPTION,
"Hyprlandは安全モードに実行しました。これは、Hyprlandはクラッシュしましたから。\n安全モードはコンフィグをロードしなくて、問題を修正できる環境です。下のボタンでコンフィグを"
"ロードできます。\nデフォルトなキーバインドがあります。SUPER+Qはkitty、SUPER+Rは簡素なランチャー、SUPER+"
"MはHyprlandから退出。\nHyprlandを再び実行すれば、普通モードで実行します。");
huEngine->registerEntry("ja_JP", TXT_KEY_SAFE_MODE_BUTTON_LOAD_CONFIG, "コンフィグをロード");
huEngine->registerEntry("ja_JP", TXT_KEY_SAFE_MODE_BUTTON_OPEN_CRASH_REPORT_DIR, "クラッシュレポートフォルダーを開く");
huEngine->registerEntry("ja_JP", TXT_KEY_SAFE_MODE_BUTTON_UNDERSTOOD, "分かりました、このウィンドウをクローズ");
// lv_LV (Latvian)
huEngine->registerEntry("lv_LV", TXT_KEY_ANR_TITLE, "Lietotne nereaģē");
@ -903,6 +926,18 @@ I18n::CI18nEngine::CI18nEngine() {
huEngine->registerEntry("pl_PL", TXT_KEY_NOTIF_FAILED_TO_LOAD_PLUGIN, "Nie udało się załadować plugin'a {name}: {error}");
huEngine->registerEntry("pl_PL", TXT_KEY_NOTIF_CM_RELOAD_FAILED, "Nie udało się przeładować shader'a CM, użyto rgba/rgbx.");
huEngine->registerEntry("pl_PL", TXT_KEY_NOTIF_WIDE_COLOR_NOT_10B, "Monitor {name}: skonfigurowano szeroką głębię barw, ale monitor nie jest w trybie 10-bit.");
huEngine->registerEntry("pl_PL", TXT_KEY_NOTIF_NO_WATCHDOG,
"Hyprland został uruchomiony bez start-hyprland. Nie jest to zalecane, chyba, że jest to środowisko do debugowania.");
huEngine->registerEntry("pl_PL", TXT_KEY_SAFE_MODE_TITLE, "Tryb Bezpieczny");
huEngine->registerEntry("pl_PL", TXT_KEY_SAFE_MODE_DESCRIPTION,
"Hyprland został uruchomiony w trybie bezpiecznym, co oznacza, że twoja ostatnia sesja uległa awarii.\nTryb bezpieczny zapobiega ładowaniu twojej "
"konfiguracji. Możesz próbować rozwiązać"
"problem w tym środowisku, lub załadować swoją konfigurację przyciskiem poniżej.\nDomyślne skróty klawiszowe są dostępne: SUPER+Q uruchamia kitty, "
"SUPER+R otwiera podstawowy launcher, SUPER+M zamyka Hyprland.\nUruchomienie ponowne Hyprland'a uruchomi go w trybie normalnym.");
huEngine->registerEntry("pl_PL", TXT_KEY_SAFE_MODE_BUTTON_LOAD_CONFIG, "Załaduj konfigurację");
huEngine->registerEntry("pl_PL", TXT_KEY_SAFE_MODE_BUTTON_OPEN_CRASH_REPORT_DIR, "Otwórz folder z raportami awarii");
huEngine->registerEntry("pl_PL", TXT_KEY_SAFE_MODE_BUTTON_UNDERSTOOD, "Ok, zamknij to okno");
// pt_PT (Portuguese Portugal)
huEngine->registerEntry("pt_PT", TXT_KEY_ANR_TITLE, "A aplicação não está a responder");

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@ -36,6 +36,13 @@ namespace I18n {
TXT_KEY_NOTIF_FAILED_TO_LOAD_PLUGIN,
TXT_KEY_NOTIF_CM_RELOAD_FAILED,
TXT_KEY_NOTIF_WIDE_COLOR_NOT_10B,
TXT_KEY_NOTIF_NO_WATCHDOG,
TXT_KEY_SAFE_MODE_TITLE,
TXT_KEY_SAFE_MODE_DESCRIPTION,
TXT_KEY_SAFE_MODE_BUTTON_OPEN_CRASH_REPORT_DIR,
TXT_KEY_SAFE_MODE_BUTTON_LOAD_CONFIG,
TXT_KEY_SAFE_MODE_BUTTON_UNDERSTOOD,
};
class CI18nEngine {

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@ -68,7 +68,8 @@ int main(int argc, char** argv) {
std::string configPath;
std::string socketName;
int socketFd = -1;
bool ignoreSudo = false, verifyConfig = false;
bool ignoreSudo = false, verifyConfig = false, safeMode = false;
int watchdogFd = -1;
if (argc > 1) {
std::span<char*> args{argv + 1, sc<std::size_t>(argc - 1)};
@ -152,6 +153,23 @@ int main(int argc, char** argv) {
} else if (value == "--verify-config") {
verifyConfig = true;
continue;
} else if (value == "--safe-mode") {
safeMode = true;
continue;
} else if (value == "--watchdog-fd") {
if (std::next(it) == args.end()) {
help();
return 1;
}
try {
watchdogFd = std::stoi(*std::next(it));
it++;
} catch (...) {
std::println(stderr, "[ ERROR ] Invalid fd for watchdog fd");
help();
return 1;
}
} else {
std::println(stderr, "[ ERROR ] Unknown option '{}' !", value);
help();
@ -193,6 +211,10 @@ int main(int argc, char** argv) {
reapZombieChildrenAutomatically();
if (watchdogFd > 0)
g_pCompositor->setWatchdogFd(watchdogFd);
if (safeMode)
g_pCompositor->m_safeMode = true;
g_pCompositor->initServer(socketName, socketFd);
if (verifyConfig)

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@ -2,6 +2,7 @@
#include "../defines.hpp"
#include "../helpers/defer/Promise.hpp"
#include "../helpers/time/Timer.hpp"
#include "PluginAPI.hpp"
#include "../managers/permissions/DynamicPermissionManager.hpp"
#include <csetjmp>

24
start/CMakeLists.txt Normal file
View file

@ -0,0 +1,24 @@
cmake_minimum_required(VERSION 3.19)
project(start-hyprland DESCRIPTION "Hyprland watchdog binary")
include(GNUInstallDirs)
set(CMAKE_CXX_STANDARD 26)
set(CMAKE_EXPORT_COMPILE_COMMANDS TRUE)
find_package(PkgConfig REQUIRED)
pkg_check_modules(starthyprland_deps REQUIRED IMPORTED_TARGET hyprutils>=0.10.3)
file(GLOB_RECURSE SRCFILES CONFIGURE_DEPENDS "src/*.cpp")
add_executable(start-hyprland ${SRCFILES})
target_link_libraries(start-hyprland PUBLIC PkgConfig::starthyprland_deps)
install(TARGETS start-hyprland)
if(CMAKE_BUILD_TYPE MATCHES Debug OR CMAKE_BUILD_TYPE MATCHES DEBUG)
set(CMAKE_EXECUTABLE_ENABLE_EXPORTS TRUE)
endif()

165
start/src/core/Instance.cpp Normal file
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@ -0,0 +1,165 @@
#include "Instance.hpp"
#include "State.hpp"
#include "../helpers/Logger.hpp"
#include <cstdlib>
#include <cstring>
#include <sys/poll.h>
#include <sys/types.h>
#include <sys/wait.h>
#include <sys/prctl.h>
#include <unistd.h>
#include <ranges>
#include <string_view>
#include <hyprutils/os/Process.hpp>
using namespace Hyprutils::OS;
using namespace std::string_literals;
//
void CHyprlandInstance::runHyprlandThread(bool safeMode) {
std::vector<std::string> argsStd;
argsStd.emplace_back("--watchdog-fd");
argsStd.emplace_back(std::format("{}", m_toHlPid.get()));
if (safeMode)
argsStd.emplace_back("--safe-mode");
for (const auto& a : g_state->rawArgvNoBinPath) {
argsStd.emplace_back(a);
}
// spawn a process manually. Hyprutils' Async is detached, while Sync redirects stdout
// TODO: make Sync respect fds?
std::vector<char*> args = {strdup(g_state->customPath.value_or("Hyprland").c_str())};
for (const auto& a : argsStd) {
args.emplace_back(strdup(a.c_str()));
}
args.emplace_back(nullptr);
int forkRet = fork();
if (forkRet == 0) {
// Make hyprland die on our SIGKILL
prctl(PR_SET_PDEATHSIG, SIGKILL);
execvp(g_state->customPath.value_or("Hyprland").c_str(), args.data());
g_logger->log(Hyprutils::CLI::LOG_ERR, "fork(): execvp failed: {}", strerror(errno));
std::fflush(stdout);
exit(1);
} else
m_hlPid = forkRet;
m_hlThread = std::thread([this] {
while (true) {
int status = 0;
int ret = waitpid(m_hlPid, &status, 0);
if (ret == -1) {
g_logger->log(Hyprutils::CLI::LOG_ERR, "Couldn't waitpid for hyprland: {}", strerror(errno));
break;
}
if (WIFEXITED(status))
break;
}
write(m_wakeupWrite.get(), "vax", 3);
std::fflush(stdout);
std::fflush(stderr);
});
}
void CHyprlandInstance::forceQuit() {
m_hyprlandExiting = true;
kill(m_hlPid, SIGTERM); // gracefully, can get stuck but it's unlikely
}
void CHyprlandInstance::clearFd(const Hyprutils::OS::CFileDescriptor& fd) {
static std::array<char, 1024> buf;
read(fd.get(), buf.data(), 1023);
}
void CHyprlandInstance::dispatchHyprlandEvent() {
std::string recvd = "";
static std::array<char, 4096> buf;
ssize_t n = read(m_fromHlPid.get(), buf.data(), 4096);
if (n < 0) {
g_logger->log(Hyprutils::CLI::LOG_ERR, "Failed dispatching hl events");
return;
}
recvd.append(buf.data(), n);
if (recvd.empty())
return;
for (const auto& s : std::views::split(recvd, '\n')) {
const std::string_view sv = std::string_view{s};
if (sv == "vax") {
// init passed
m_hyprlandInitialized = true;
continue;
}
if (sv == "end") {
// exiting
m_hyprlandExiting = true;
continue;
}
}
}
bool CHyprlandInstance::run(bool safeMode) {
int pipefds[2];
pipe(pipefds);
m_fromHlPid = CFileDescriptor{pipefds[0]};
m_toHlPid = CFileDescriptor{pipefds[1]};
pipe(pipefds);
m_wakeupRead = CFileDescriptor{pipefds[0]};
m_wakeupWrite = CFileDescriptor{pipefds[1]};
runHyprlandThread(safeMode);
pollfd pollfds[2] = {
{
.fd = m_wakeupRead.get(),
.events = POLLIN,
.revents = 0,
},
{
.fd = m_fromHlPid.get(),
.events = POLLIN,
.revents = 0,
},
};
while (true) {
int ret = poll(pollfds, 2, -1);
if (ret < 0) {
g_logger->log(Hyprutils::CLI::LOG_ERR, "poll() failed, exiting");
exit(1);
}
if (pollfds[1].revents & POLLIN) {
g_logger->log(Hyprutils::CLI::LOG_DEBUG, "got an event from hyprland");
dispatchHyprlandEvent();
continue;
}
if (pollfds[0].revents & POLLIN) {
g_logger->log(Hyprutils::CLI::LOG_DEBUG, "hyprland exit, breaking poll, checking state");
clearFd(m_wakeupRead);
break;
}
}
m_hlThread.join();
return !m_hyprlandInitialized || m_hyprlandExiting;
}

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#pragma once
#include <hyprutils/os/FileDescriptor.hpp>
#include <thread>
#include "../helpers/Memory.hpp"
class CHyprlandInstance {
public:
CHyprlandInstance() = default;
~CHyprlandInstance() = default;
CHyprlandInstance(const CHyprlandInstance&) = delete;
CHyprlandInstance(CHyprlandInstance&) = delete;
CHyprlandInstance(CHyprlandInstance&&) = delete;
bool run(bool safeMode = false); // if returns false, restart.
void forceQuit();
private:
void runHyprlandThread(bool safeMode);
void clearFd(const Hyprutils::OS::CFileDescriptor& fd);
void dispatchHyprlandEvent();
int m_hlPid = -1;
Hyprutils::OS::CFileDescriptor m_fromHlPid, m_toHlPid;
Hyprutils::OS::CFileDescriptor m_wakeupRead, m_wakeupWrite;
bool m_hyprlandInitialized = false;
bool m_hyprlandExiting = false;
std::thread m_hlThread;
};
inline UP<CHyprlandInstance> g_instance;

13
start/src/core/State.hpp Normal file
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#pragma once
#include "../helpers/Memory.hpp"
#include <span>
#include <optional>
struct SState {
std::span<const char*> rawArgvNoBinPath;
std::optional<std::string> customPath;
};
inline UP<SState> g_state = makeUnique<SState>();

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#pragma once
#include <hyprutils/cli/Logger.hpp>
#include "Memory.hpp"
// we do this to add a from start-hyprland to the logs
inline UP<Hyprutils::CLI::CLogger> g_loggerMain = makeUnique<Hyprutils::CLI::CLogger>();
inline UP<Hyprutils::CLI::CLoggerConnection> g_logger;

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#pragma once
#include <hyprutils/memory/WeakPtr.hpp>
#include <hyprutils/memory/Atomic.hpp>
using namespace Hyprutils::Memory;
template <typename T>
using SP = Hyprutils::Memory::CSharedPointer<T>;
template <typename T>
using WP = Hyprutils::Memory::CWeakPointer<T>;
template <typename T>
using UP = Hyprutils::Memory::CUniquePointer<T>;
template <typename T>
using ASP = Hyprutils::Memory::CAtomicSharedPointer<T>;

87
start/src/main.cpp Normal file
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#include <csignal>
#include <print>
#include "helpers/Logger.hpp"
#include "core/State.hpp"
#include "core/Instance.hpp"
using namespace Hyprutils::CLI;
#define ASSERT(expr) \
if (!(expr)) { \
g_logger->log(LOG_CRIT, "Failed assertion at line {} in {}: {} was false", __LINE__, \
([]() constexpr -> std::string { return std::string(__FILE__).substr(std::string(__FILE__).find("/src/") + 1); })(), #expr); \
std::abort(); \
}
constexpr const char* HELP_INFO = R"#(start-hyprland - A binary to properly start Hyprland via a watchdog process.
Any arguments after -- are passed to Hyprland. For Hyprland help, run start-hyprland -- --help or Hyprland --help)#";
//
static void onSignal(int sig) {
if (!g_instance)
return;
g_instance->forceQuit();
g_instance.reset();
exit(0);
}
int main(int argc, const char** argv, const char** envp) {
g_logger = makeUnique<Hyprutils::CLI::CLoggerConnection>(*g_loggerMain);
g_logger->setName("start-hyprland");
g_logger->setLogLevel(Hyprutils::CLI::LOG_DEBUG);
signal(SIGTERM, ::onSignal);
signal(SIGINT, ::onSignal);
signal(SIGKILL, ::onSignal);
int startArgv = -1;
for (int i = 1; i < argc; ++i) {
std::string_view arg = argv[i];
if (arg == "--") {
startArgv = i + 1;
break;
}
if (arg == "-h" || arg == "--help") {
std::println("{}", HELP_INFO);
return 0;
}
if (arg == "--path" || arg == "-p") {
if (i + 1 >= argc) {
std::println("{} requires a path", arg);
return 1;
}
g_state->customPath = argv[++i];
continue;
}
}
if (startArgv != -1)
g_state->rawArgvNoBinPath = std::span<const char*>{argv + startArgv, argc - startArgv};
if (!g_state->rawArgvNoBinPath.empty())
g_logger->log(Hyprutils::CLI::LOG_WARN, "Arguments after -- are passed to Hyprland");
bool safeMode = false;
while (true) {
g_instance = makeUnique<CHyprlandInstance>();
const bool RET = g_instance->run(safeMode);
g_instance.reset();
if (!RET) {
g_logger->log(Hyprutils::CLI::LOG_ERR, "Hyprland exit not-cleanly, restarting");
safeMode = true;
continue;
}
g_logger->log(Hyprutils::CLI::LOG_DEBUG, "Hyprland exit cleanly.");
break;
}
return 0;
}