Add configuration system

The config file format could still be improved though...

README.md

@@ -77,8 +77,17 @@ Bar:
 Audio Flyin: 
 - Audio control
 
+## Configuration for your system
+Copy my personal config(found under data/config) into ~/.config/gBar/config and modify it to your needs(Mine will 100% not work, since it is dependant on my dotfiles).
+The config must be *exactly* formatted the following way(Don't forget the space between the variable and the data!):
+```
+[Variable]: [value]
+[Variable]: [value]
+[...]
+```
+
 ## Plugins
-gBar utilizes a plugin system for custom widgets.
+gBar utilizes a plugin system for custom widgets anyone can create without modifying the source code.
 Plugins are native shared-libraries, which need to be placed inside ```~/.local/lib/gBar```, ```/usr/lib/gBar``` or ```/usr/local/lib/gBar```.
 Inside example/ there is an example plugin setup. To build and run it, run the following commands inside the example directory:
 
@@ -133,12 +142,8 @@ First, find where the data is located for gBar. Possible locations:
 Delete /tmp/gBar__audio.
 This happens, when you kill the widget before it closes automatically after a few seconds.
 
-### CPU Temperature is wrong/Lock doesn't work
-*This is caused by the way my system and/or Linux is setup.*
-
-Temperature: Edit the variable ```tempFilePath``` in ```src/System.cpp``` to the correct thermal zone file and recompile. The one for my system is *very* likely wrong.
-
-Lock: There is no generic way to lock a system. So please, implement it to suit your needs (Replace XXX by a shell command in ```src/System.cpp```)
+### CPU Temperature is wrong / Lock doesn't work / Exiting WM does not work
+See *Configuration for your system*
 
 ### The icons are not showing!
 Please install a Nerd Font from https://www.nerdfonts.com (I use Caskaydia Cove NF), and change style.css/style.scss accordingly (Refer to 'I want to customize the colors' for that)

data/config

@@ -0,0 +1,4 @@
+CPUThermalZone: /sys/devices/pci0000:00/0000:00:18.3/hwmon/hwmon2/temp1_input
+SuspendCommand: ~/.config/scripts/sys.sh suspend
+LockCommand: ~/.config/scripts/sys.sh lock
+ExitCommand: killall Hyprland

src/System.cpp

@@ -21,6 +21,63 @@
 
 namespace System
 {
+    struct Config
+    {
+        std::string cpuThermalZone = ""; // idk, no standard way of doing this.
+        std::string suspendCommand = "systemctl suspend";
+        std::string lockCommand = ""; // idk, no standard way of doing this.
+        std::string exitCommand = ""; // idk, no standard way of doing this.
+    };
+
+    static Config config;
+
+    void LoadConfig()
+    {
+        const char* xdgConfigHome = getenv("XDG_CONFIG_HOME");
+        std::ifstream file;
+        if (xdgConfigHome)
+        {
+            file = std::ifstream(std::string(xdgConfigHome) + "/gBar/config");
+        }
+        else
+        {
+            std::string home = getenv("HOME");
+            file = std::ifstream(home + "/.config/gBar/config");
+        }
+        if (!file.is_open())
+        {
+            LOG("Failed opening config!");
+            return;
+        }
+        std::string line;
+        while (std::getline(file, line))
+        {
+            std::string* prop = nullptr;
+            if (line.find("CPUThermalZone: ") != std::string::npos)
+            {
+                prop = &config.cpuThermalZone;
+            }
+            else if (line.find("SuspendCommand: ") != std::string::npos)
+            {
+                prop = &config.suspendCommand;
+            }
+            else if (line.find("LockCommand: ") != std::string::npos)
+            {
+                prop = &config.lockCommand;
+            }
+            else if (line.find("ExitCommand: ") != std::string::npos)
+            {
+                prop = &config.exitCommand;
+            }
+            if (prop == nullptr)
+            {
+                LOG("Warning: unknown config var: " << line);
+                continue;
+            }
+            *prop = line.substr(line.find(' ') + 1); // Everything after space is data
+        }
+    }
+
     struct CPUTimestamp
     {
         size_t total = 0;
@@ -72,8 +129,7 @@ namespace System
 
     double GetCPUTemp()
     {
-        constexpr const char* tempFilePath = "/sys/devices/pci0000:00/0000:00:18.3/hwmon/hwmon2/temp1_input";
-        std::ifstream tempFile(tempFilePath);
+        std::ifstream tempFile(config.cpuThermalZone);
         if (!tempFile.is_open())
         {
             return 0.f;
@@ -141,7 +197,7 @@ namespace System
         struct statvfs stat;
         int err = statvfs("/", &stat);
         ASSERT(err == 0, "Cannot stat root!");
-        
+
         DiskInfo out{};
         out.totalGiB = (double)(stat.f_blocks * stat.f_frsize) / (1024 * 1024 * 1024);
         out.usedGiB = (double)((stat.f_blocks - stat.f_bfree) * stat.f_frsize) / (1024 * 1024 * 1024);
@@ -396,36 +452,22 @@ namespace System
 
     void ExitWM()
     {
-#ifdef HAS_HYPRLAND
-        system("killall Hyprland");
-#else
-        LOG("Implement me!");
-#endif
+        system(config.exitCommand.c_str());
     }
 
     void Lock()
     {
-#ifdef HAS_SYS
-        // My personal lock script
-        system("~/.config/scripts/sys.sh lock");
-#else
-        LOG("Lock not implemented! Please implement me below!");
-        // system("XXX");
-#endif
+        system(config.lockCommand.c_str());
     }
 
     void Suspend()
     {
-#ifdef HAS_SYS
-        // My personal suspend script
-        system("~/.config/scripts/sys.sh suspend");
-#else
-        system("systemctl suspend");
-#endif
+        system(config.suspendCommand.c_str());
     }
 
     void Init()
     {
+        LoadConfig();
 #ifdef HAS_NVIDIA
         NvidiaGPU::Init();
 #endif