Provide current site name & identifier for build-time modifications

vite.config.ts

@@ -1,21 +1,38 @@
 import { sveltekit } from '@sveltejs/kit/vite';
 import { defineConfig } from 'vitest/config';
+import { ScssViteReadEnvVariableFunctionPlugin } from "./.vite/plugins/scss-read-env-variable-function";
+import { SwapDefinedVariablesPlugin } from "./.vite/plugins/swap-defined-variables";
 
-export default defineConfig({
-  build: {
-    // SVGs imported from the FA6 don't need to be inlined!
-    assetsInlineLimit: 0
-  },
-  plugins: [
-    sveltekit(),
-  ],
-  test: {
-    globals: true,
-    environment: 'jsdom',
-    exclude: ['**/node_modules/**', '.*\\.d\\.ts$', '.*\\.spec\\.ts$'],
-    coverage: {
-      reporter: ['text', 'html'],
-      include: ['src/lib/**/*.{js,ts}'],
+export default defineConfig(() => {
+  return {
+    build: {
+      // SVGs imported from the FA6 don't need to be inlined!
+      assetsInlineLimit: 0
+    },
+    plugins: [
+      sveltekit(),
+      ScssViteReadEnvVariableFunctionPlugin(),
+      SwapDefinedVariablesPlugin({
+        envVariable: 'SITE',
+        expectedValue: 'derpibooru',
+        define: {
+          __CURRENT_SITE__: JSON.stringify('derpibooru'),
+          __CURRENT_SITE_NAME__: JSON.stringify('Derpibooru'),
+        }
+      }),
+    ],
+    test: {
+      globals: true,
+      environment: 'jsdom',
+      exclude: ['**/node_modules/**', '.*\\.d\\.ts$', '.*\\.spec\\.ts$'],
+      coverage: {
+        reporter: ['text', 'html'],
+        include: ['src/lib/**/*.{js,ts}'],
+      }
+    },
+    define: {
+      __CURRENT_SITE__: JSON.stringify('furbooru'),
+      __CURRENT_SITE_NAME__: JSON.stringify('Furbooru'),
     }
-  }
+  };
 });