Compile and load .scss directly with libsass (#76)

Even though an scss file is present, it needs to be converted manually and only the
CSS file is parsed. This pull request sets out to fix that.

there is preliminary scss support using libsass now (libsass is technically "deprecated" but there seems to be no other
c/c++ library for converting scss to css)

README.md

@@ -13,6 +13,7 @@ My personal blazingly fast and efficient status bar + widgets, in case anyone fi
 - gtk-layer-shell
 - PulseAudio server (PipeWire works too!)
 - pamixer
+- libsass
 - meson, gcc/clang, ninja
 
 ## Building and installation (Manually)

meson.build

@@ -28,6 +28,9 @@ gtk_layer_shell = dependency('gtk-layer-shell-0')
 
 pulse = dependency('libpulse')
 
+sass = dependency('libsass')
+
+
 headers = [
   'src/Common.h',
   'src/Log.h',
@@ -58,7 +61,7 @@ sources = [
    'src/SNI.cpp',
    ]
 
-dependencies = [gtk, gtk_layer_shell, pulse, wayland_client ]
+dependencies = [gtk, gtk_layer_shell, pulse, wayland_client, sass]
 
 if get_option('WithHyprland')
   add_global_arguments('-DWITH_HYPRLAND', language: 'cpp')

src/CSS.cpp

@@ -5,6 +5,8 @@
 #include <array>
 #include <fstream>
 
+#include <sass.h>
+
 namespace CSS
 {
     static GtkCssProvider* sProvider;
@@ -58,21 +60,49 @@ namespace CSS
         GError* err = nullptr;
         for (auto& dir : locations)
         {
-            std::string file = dir + "/style.css";
+            std::string file = dir + "/style.scss";
+            bool scss_suceeded = false;
 
-            if (!std::ifstream(file).is_open())
+            if (std::ifstream(file).is_open())
             {
-                LOG("Info: No CSS found in " << dir);
+                Sass_File_Context* ctx =  sass_make_file_context(file.c_str());
-                continue;
+                Sass_Context* ctxout = sass_file_context_get_context(ctx);
+                sass_compile_file_context(ctx);
+                if(sass_context_get_error_status(ctxout))
+                {
+                    LOG("Error Compiling SCSS: " << sass_context_get_error_message(ctxout));
+                }
+                else
+                {
+                    std::string data = sass_context_get_output_string(ctxout);
+                    gtk_css_provider_load_from_data(sProvider, data.c_str(), data.length(), &err);
+                    scss_suceeded = true;
+                }
+                sass_delete_file_context(ctx);
+            }
+
+            if (!scss_suceeded)
+            {
+                LOG("Info: couldn't load SCSS from " << dir);
+                file = dir + "/style.css";
+
+                if (!std::ifstream(file).is_open())
+                {
+                    LOG("Info: No CSS found in " << dir);
+                    continue;
+                }
+               
+                gtk_css_provider_load_from_path(sProvider, file.c_str(), &err);
+
             }
             
-            gtk_css_provider_load_from_path(sProvider, file.c_str(), &err);
 
             if (!err)
             {
                 LOG("CSS found and loaded successfully!");
                 return;
             }
+
             LOG("Warning: Failed loading config for " << dir << ", trying next one!");
             // Log any errors
             LOG(err->message);