tsconfig.json: set the watch options

For watchFile and watchDirectory we use useFsEvents (the default):
Attempt to use the operating system/file system’s native events
for directory changes.

dynamicPriorityPolling: Use a dynamic queue where less-frequently
modified files will be checked less often.

synchronousWatchDirectory: Synchronously call callbacks and update
the state of directory watchers on platforms that don`t support
recursive watching natively.
Instead of giving a small timeout to allow for potentially multiple
edits to occur on a file.

Reference: https://www.typescriptlang.org/docs/handbook/configuring-watch.html

1 files changed, 14 insertions, 1 deletions

diff --git a/tsconfig.json b/tsconfig.json
index d7fc0f4..05e99c8 100644
--- a/tsconfig.json
+++ b/tsconfig.json
@@ -33,5 +33,18 @@
     "vfs/example.ts",
     "vfs/vfs.ts",
     "websocket_client.ts"
-  ]
+  ],
+  "watchOptions": {
+    // Use native file system events for files and directories
+    "watchFile": "useFsEvents",
+    "watchDirectory": "useFsEvents",
+    // Poll files for updates more frequently
+    // when they're updated a lot.
+    "fallbackPolling": "dynamicPriority",
+    // Don't coalesce watch notification
+    "synchronousWatchDirectory": true,
+    // Finally, two additional settings for reducing the amount of possible
+    // files to track  work from these directories
+    "excludeDirectories": ["**/node_modules"]
+  }
 }