fix(battery): use path for the / operator

include/factory.hpp

@@ -7,11 +7,13 @@
 #include "modules/sway/window.hpp"
 #include "modules/sway/workspaces.hpp"
 #endif
+#ifndef NO_FILESYSTEM
 #include "modules/battery.hpp"
+#endif
 #include "modules/cpu.hpp"
 #include "modules/idle_inhibitor.hpp"
 #include "modules/memory.hpp"
-#ifdef HAVE_DBUSMENU
+#if defined(HAVE_DBUSMENU) && !defined(NO_FILESYSTEM)
 #include "modules/sni/tray.hpp"
 #endif
 #ifdef HAVE_LIBNL

include/modules/temperature.hpp

@@ -4,11 +4,6 @@
 #include <fstream>
 #include "ALabel.hpp"
 #include "util/sleeper_thread.hpp"
-#ifdef FILESYSTEM_EXPERIMENTAL
-#include <experimental/filesystem>
-#else
-#include <filesystem>
-#endif
 
 namespace waybar::modules {
 

meson.build

@@ -12,7 +12,7 @@ project(
 cpp_args = []
 cpp_link_args = []
 
-if false # libc++
+if get_option('libcxx')
     cpp_args += ['-stdlib=libc++']
     cpp_link_args += ['-stdlib=libc++', '-lc++abi']
 
@@ -34,7 +34,12 @@ else
 endif
 
 if not compiler.has_header('filesystem')
+    if compiler.has_header('experimental/filesystem')
         add_project_arguments('-DFILESYSTEM_EXPERIMENTAL', language: 'cpp')
+    else
+        add_project_arguments('-DNO_FILESYSTEM', language: 'cpp')
+        warning('No filesystem header found, some modules may not work')
+    endif
 endif
 
 add_global_arguments(cpp_args, language : 'cpp')

meson_options.txt

@@ -1,3 +1,4 @@
+option('libcxx', type : 'boolean', value : false, description : 'Build with Clang\'s libc++ instead of libstdc++ on Linux.')
 option('libnl', type: 'feature', value: 'auto', description: 'Enable libnl support for network related features')
 option('libudev', type: 'feature', value: 'auto', description: 'Enable libudev support for udev related features')
 option('pulseaudio', type: 'feature', value: 'auto', description: 'Enable support for pulseaudio')

src/factory.cpp

@@ -7,9 +7,11 @@ waybar::IModule* waybar::Factory::makeModule(const std::string& name) const {
     auto hash_pos = name.find('#');
     auto ref = name.substr(0, hash_pos);
     auto id = hash_pos != std::string::npos ? name.substr(hash_pos + 1) : "";
+#ifndef NO_FILESYSTEM
     if (ref == "battery") {
       return new waybar::modules::Battery(id, config_[name]);
     }
+#endif
 #ifdef HAVE_SWAY
     if (ref == "sway/mode") {
       return new waybar::modules::sway::Mode(id, config_[name]);
@@ -33,7 +35,7 @@ waybar::IModule* waybar::Factory::makeModule(const std::string& name) const {
     if (ref == "clock") {
       return new waybar::modules::Clock(id, config_[name]);
     }
-#ifdef HAVE_DBUSMENU
+#if defined(HAVE_DBUSMENU) && !defined(NO_FILESYSTEM)
     if (ref == "tray") {
       return new waybar::modules::SNI::Tray(id, bar_, config_[name]);
     }

src/modules/battery.cpp

@@ -47,21 +47,21 @@ void waybar::modules::Battery::worker() {
 
 void waybar::modules::Battery::getBatteries() {
   try {
-    for (auto const& node : fs::directory_iterator(data_dir_)) {
+    for (auto& node : fs::directory_iterator(data_dir_)) {
       if (!fs::is_directory(node)) {
         continue;
       }
       auto dir_name = node.path().filename();
       auto bat_defined = config_["bat"].isString();
       if (((bat_defined && dir_name == config_["bat"].asString()) || !bat_defined) &&
-          fs::exists(node / "capacity") && fs::exists(node / "uevent") &&
-          fs::exists(node / "status")) {
-        batteries_.push_back(node);
+          fs::exists(node.path() / "capacity") && fs::exists(node.path() / "uevent") &&
+          fs::exists(node.path() / "status")) {
+        batteries_.push_back(node.path());
       }
       auto adap_defined = config_["adapter"].isString();
       if (((adap_defined && dir_name == config_["adapter"].asString()) || !adap_defined) &&
-          fs::exists(node / "online")) {
-        adapter_ = node;
+          fs::exists(node.path() / "online")) {
+        adapter_ = node.path();
       }
     }
   } catch (fs::filesystem_error& e) {

src/modules/temperature.cpp

@@ -8,11 +8,8 @@ waybar::modules::Temperature::Temperature(const std::string& id, const Json::Val
     auto zone = config_["thermal-zone"].isInt() ? config_["thermal-zone"].asInt() : 0;
     file_path_ = fmt::format("/sys/class/thermal/thermal_zone{}/temp", zone);
   }
-#ifdef FILESYSTEM_EXPERIMENTAL
-  if (!std::experimental::filesystem::exists(file_path_)) {
-#else
-  if (!std::filesystem::exists(file_path_)) {
-#endif
+  std::ifstream temp(file_path_);
+  if (!temp.is_open()) {
     throw std::runtime_error("Can't open " + file_path_);
   }
   label_.set_name("temperature");