fix: prevent infinite loop on logging

src/consola.ts

@@ -82,6 +82,10 @@
 
     // Track of last log
     this._lastLog = {};
+
+    // Prevent infinite loop on logging
+    // Issue: https://github.com/unjs/consola/issues/298
+    this._logFn = _preventLoop(this._logFn).bind(this);
   }
 
   /**
@@ -474,6 +478,24 @@
   return defaultLevel;
 }
 
+function _preventLoop<T extends (this: any, ...args: any[]) => any>(fn: T): T {
+  let doing = false;
+  return function (...args) {
+    if (doing) {
+      return false;
+    }
+    doing = true;
+    try {
+      const result = fn.apply(this, args);
+      doing = false;
+      return result;
+    } catch (error) {
+      doing = false;
+      throw error;
+    }
+  } as T;
+}
+
 export interface LogFn {
   (message: InputLogObject | any, ...args: any[]): void;
   raw: (...args: any[]) => void;

test/consola.test.ts

@@ -56,6 +56,30 @@ describe("consola", () => {
 
     expect(logs.at(-1)!.args).toEqual(["SPAM", "(repeated 4 times)"]);
   });
+
+  test("should avoid infinite loop", () => {
+    const logs: LogObject[] = [];
+    const TestReporter: ConsolaReporter = {
+      log(logObj) {
+        logs.push(logObj);
+      },
+    };
+    const consola = createConsola({
+      reporters: [TestReporter],
+    });
+
+    consola.wrapConsole();
+    const obj = {
+      get value() {
+        console.warn(obj);
+        return "anything";
+      },
+    };
+    consola.warn(obj);
+    consola.restoreConsole();
+
+    expect(logs.length).toBe(1);
+  });
 });
 
 function wait(delay) {