debuggable and code stripping

vite/plugins/strip.ts

@@ -0,0 +1,66 @@
+import { Plugin } from "vite";
+
+export function strip(): Plugin {
+  const p: Plugin = {
+    name: "debug-strip",
+    enforce: "pre",
+    transform(code: string, id: string) {
+      if (!id.endsWith(".ts")) {
+        return code;
+      }
+
+      const keyword = "override debugDraw";
+      const results = [];
+      let currentIndex = 0;
+
+      while (true) {
+        // Find the next occurrence of the keyword starting from currentIndex.
+        const startIndex = code.indexOf(keyword, currentIndex);
+        if (startIndex === -1) {
+          break; // No more occurrences.
+        }
+
+        // Find the first opening brace '{' after the keyword.
+        const braceStart = code.indexOf("{", startIndex);
+        if (braceStart === -1) {
+          // No opening brace found; skip this occurrence.
+          currentIndex = startIndex + keyword.length;
+          continue;
+        }
+
+        // Use a counter to find the matching closing brace.
+        let openBraces = 0;
+        let endIndex = -1;
+        for (let i = braceStart; i < code.length; i++) {
+          if (code[i] === "{") {
+            openBraces++;
+          } else if (code[i] === "}") {
+            openBraces--;
+          }
+
+          // When openBraces returns to 0, we found the matching closing brace.
+          if (openBraces === 0) {
+            endIndex = i;
+            break;
+          }
+        }
+
+        // If a matching closing brace was found, extract the substring.
+        if (endIndex !== -1) {
+          results.push(code.substring(startIndex, endIndex + 1));
+          // Move the currentIndex past the extracted block.
+          currentIndex = endIndex + 1;
+        } else {
+          // If no matching closing brace is found, skip this occurrence.
+          currentIndex = startIndex + keyword.length;
+        }
+      }
+
+      for (const result of results) {
+        code = code.replace(result, "");
+      }
+      return code;
+    },
+  };
+  return p;
+}