Bugfix: fix race conditions

lib/watch/files.ts

@@ -3,15 +3,29 @@ import delay from "../../utils/delay";
 import { SyncFilesFnParams } from "../../types";
 
 import sync from "../../utils/sync";
+import SyncScheduler from "../../utils/sync-scheduler";
 
 export default async function watchFiles({
     files,
     options,
 }: SyncFilesFnParams) {
-    let timeout: any;
     const UPDATE_TIMEOUT = 1000;
 
     try {
+        const INTERVAL = options?.interval ? options.interval : UPDATE_TIMEOUT;
+
+        const scheduler = new SyncScheduler(
+            (filePath, firstRun) =>
+                sync({
+                    options,
+                    dirPath: filePath,
+                    dirs: files,
+                    isFiles: true,
+                    firstRun,
+                }),
+            INTERVAL
+        );
+
         for (let i = 0; i < files.length; i++) {
             const file = files[i];
             const filePath =
@@ -61,26 +75,7 @@ export default async function watchFiles({
                         interval: interval || 200,
                     },
                     (curr, prev) => {
-                        if (global.SYNCING) return;
-
-                        const INTERVAL = options?.interval
-                            ? options.interval
-                            : UPDATE_TIMEOUT;
-
-                        clearTimeout(timeout);
-
-                        timeout = setTimeout(() => {
-                            global.SYNCING = true;
-
-                            sync({
-                                options,
-                                dirPath: filePath,
-                                dirs: files,
-                                isFiles: true,
-                            }).finally(() => {
-                                process.exit(global.SYNC_SUCCESS_EXIT_CODE);
-                            });
-                        }, INTERVAL);
+                        scheduler.schedule(filePath);
                     }
                 );
             }
@@ -92,19 +87,7 @@ export default async function watchFiles({
                 ? lastUpdatedFile
                 : lastUpdatedFile.path;
 
-        global.SYNCING = true;
-
-        await sync({
-            dirPath: lastUpdatedFilePath,
-            dirs: files,
-            options,
-            isFiles: true,
-            firstRun: true,
-        });
-
-        setTimeout(() => {
-            global.SYNCING = false;
-        }, UPDATE_TIMEOUT);
+        scheduler.enqueue(lastUpdatedFilePath, true);
     } catch (error: any) {
         console.log("ERROR:", error.message);
         process.exit(0);