Bugfix: fix race conditions

dist/utils/sync-scheduler.js

@@ -0,0 +1,68 @@
+"use strict";
+var __awaiter = (this && this.__awaiter) || function (thisArg, _arguments, P, generator) {
+    function adopt(value) { return value instanceof P ? value : new P(function (resolve) { resolve(value); }); }
+    return new (P || (P = Promise))(function (resolve, reject) {
+        function fulfilled(value) { try { step(generator.next(value)); } catch (e) { reject(e); } }
+        function rejected(value) { try { step(generator["throw"](value)); } catch (e) { reject(e); } }
+        function step(result) { result.done ? resolve(result.value) : adopt(result.value).then(fulfilled, rejected); }
+        step((generator = generator.apply(thisArg, _arguments || [])).next());
+    });
+};
+Object.defineProperty(exports, "__esModule", { value: true });
+class SyncScheduler {
+    constructor(task, debounceMs) {
+        this.task = task;
+        this.debounceMs = debounceMs;
+        this.pending = new Map();
+        this.timers = new Map();
+        this.flushing = false;
+    }
+    schedule(dirPath) {
+        const existing = this.timers.get(dirPath);
+        if (existing)
+            clearTimeout(existing);
+        const timer = setTimeout(() => {
+            this.timers.delete(dirPath);
+            this.pending.set(dirPath, false);
+            void this.flush();
+        }, this.debounceMs);
+        this.timers.set(dirPath, timer);
+    }
+    enqueue(dirPath, firstRun) {
+        const existing = this.timers.get(dirPath);
+        if (existing) {
+            clearTimeout(existing);
+            this.timers.delete(dirPath);
+        }
+        this.pending.set(dirPath, !!firstRun);
+        void this.flush();
+    }
+    flush() {
+        return __awaiter(this, void 0, void 0, function* () {
+            if (this.flushing)
+                return;
+            this.flushing = true;
+            try {
+                while (this.pending.size > 0) {
+                    const batch = [...this.pending.entries()];
+                    this.pending.clear();
+                    for (const [dirPath, firstRun] of batch) {
+                        try {
+                            yield this.task(dirPath, firstRun);
+                        }
+                        catch (error) {
+                            console.log("ERROR:", error.message);
+                        }
+                    }
+                }
+            }
+            finally {
+                this.flushing = false;
+                if (this.pending.size > 0) {
+                    void this.flush();
+                }
+            }
+        });
+    }
+}
+exports.default = SyncScheduler;