fix(api): keep file event streams alive

- Disable the Quart response timeout for authenticated file event streams.
- Send SSE keepalives more often to avoid idle proxy disconnects.
- Treat remote stream interruptions as reconnectable disconnects in watch output.
- Bump NanoShare to 1.26.0 and the standalone CLI to 0.4.1.

cli/nanoshare_client/cli.py

@@ -3,7 +3,6 @@ from __future__ import annotations
 import argparse
 import json
 import sys
-import time
 from pathlib import Path
 
 from .app import make_client
@@ -14,6 +13,7 @@ from .config import DEFAULT_CONFIG
 from .remote_path import join_remote_path
 from .sync import sync_once
 from .table import format_table
+from .watch import watch_loop
 
 DEFAULT_NODE = 'picoshare'
 
@@ -99,12 +99,7 @@ def _cmd_sync(args) -> int:
     client.close()
 
 def _cmd_watch(args) -> int:
-  print(f'watching {args.folder} every {args.interval}s')
+  return watch_loop(args, _cmd_sync)
-  while True:
-    code = _cmd_sync(args)
-    if code:
-      return code
-    time.sleep(args.interval)
 
 def _cmd_completion(args) -> int:
   try:

cli/nanoshare_client/client.py

@@ -45,11 +45,17 @@ def list_remote(client, node: str) -> list[dict]:
   files = result.get('files', []) if isinstance(result, dict) else []
   return files if isinstance(files, list) else []
 
-def download_url(client, node: str, file_id: str) -> str:
+def node_url(client, node: str, path: str) -> str:
   base = client.registry.get(node)
   if not base:
     raise RuntimeError(f'unknown node: {node}')
-  return f"{base.rstrip('/')}/api/files/{quote(file_id, safe='')}/download"
+  return f"{base.rstrip('/')}{path}"
+
+def download_url(client, node: str, file_id: str) -> str:
+  return node_url(client, node, f"/api/files/{quote(file_id, safe='')}/download")
+
+def events_url(client, node: str) -> str:
+  return node_url(client, node, '/api/files/events')
 
 def download(client, node: str, file_id: str, path: Path) -> None:
   path.parent.mkdir(parents=True, exist_ok=True)

cli/nanoshare_client/ignore.py

@@ -4,9 +4,29 @@ from fnmatch import fnmatch
 from pathlib import Path
 
 IGNORE_FILE_NAME = '.nanoshareignore'
+DEFAULT_IGNORE_PATTERNS = [
+  IGNORE_FILE_NAME,
+  '.comments/',
+  '.env',
+  '.env.*',
+  '.venv/',
+  'venv/',
+  '__pycache__/',
+  '.pytest_cache/',
+  '.mypy_cache/',
+  '.ruff_cache/',
+  '.git/',
+  '.hg/',
+  '.svn/',
+  '.DS_Store',
+  'Thumbs.db',
+  'desktop.ini',
+  '$RECYCLE.BIN/',
+  'System Volume Information/',
+]
 
 def load_ignore_patterns(root: Path, extra_patterns: list[str] | None = None) -> list[str]:
-  patterns = [IGNORE_FILE_NAME]
+  patterns = list(DEFAULT_IGNORE_PATTERNS)
   ignore_file = root / IGNORE_FILE_NAME
   if ignore_file.is_file():
     for line in ignore_file.read_text().splitlines():

cli/nanoshare_client/watch.py

@@ -0,0 +1,127 @@
+from __future__ import annotations
+
+import sys
+import threading
+import time
+from pathlib import Path
+from typing import Callable
+
+import httpx
+
+from .client import events_url
+from .ignore import is_ignored, load_ignore_patterns
+from .sync import relative, state_path, SYNC_DIR_NAME
+
+SyncFunc = Callable[[object], int]
+
+class _ChangeFlag:
+  def __init__(self) -> None:
+    self.event = threading.Event()
+
+  def notify(self) -> None:
+    self.event.set()
+
+  def wait(self, timeout: float) -> bool:
+    return self.event.wait(timeout)
+
+  def clear(self) -> None:
+    self.event.clear()
+
+def _is_relevant_path(root: Path, path: str, ignore_patterns: list[str]) -> bool:
+  try:
+    candidate = Path(path).expanduser().resolve()
+    rel = relative(root, candidate)
+  except ValueError:
+    return False
+  if candidate == state_path(root) or root / SYNC_DIR_NAME in candidate.parents:
+    return False
+  return not is_ignored(rel, ignore_patterns)
+
+def _remote_events_thread(args, flag: _ChangeFlag, stop: threading.Event) -> threading.Thread:
+  def run() -> None:
+    while not stop.is_set():
+      client = None
+      try:
+        from .app import make_client
+        client = make_client(args)
+        headers = {'Accept': 'text/event-stream', **client.auth_headers()}
+        with httpx.Client(timeout=None) as http:
+          with http.stream('GET', events_url(client, args.node), headers=headers) as response:
+            response.raise_for_status()
+            for line in response.iter_lines():
+              if stop.is_set():
+                return
+              if line.startswith('event: files.changed'):
+                flag.notify()
+      except Exception as exc:
+        if not stop.is_set():
+          print(f'remote event stream disconnected; retrying in 30s: {exc}', file=sys.stderr)
+          stop.wait(30)
+      finally:
+        if client:
+          client.close()
+
+  thread = threading.Thread(target=run, daemon=True)
+  thread.start()
+  return thread
+
+def _watchdog_observer(root: Path, ignore_patterns: list[str], flag: _ChangeFlag):
+  from watchdog.events import FileSystemEventHandler
+  from watchdog.observers import Observer
+
+  class Handler(FileSystemEventHandler):
+    def on_any_event(self, event):
+      paths = [event.src_path]
+      dest_path = getattr(event, 'dest_path', None)
+      if dest_path:
+        paths.append(dest_path)
+      if any(_is_relevant_path(root, path, ignore_patterns) for path in paths):
+        flag.notify()
+
+  observer = Observer()
+  observer.schedule(Handler(), str(root), recursive=True)
+  observer.start()
+  return observer
+
+def watch_loop(args, sync_func: SyncFunc) -> int:
+  root = Path(args.folder).expanduser().resolve()
+  root.mkdir(parents=True, exist_ok=True)
+  ignore_patterns = load_ignore_patterns(root, getattr(args, 'ignore', None))
+  interval = max(float(getattr(args, 'interval', 10.0)), 0.1)
+  flag = _ChangeFlag()
+  observer = None
+  stop_events = threading.Event()
+  events_thread = None
+
+  try:
+    try:
+      observer = _watchdog_observer(root, ignore_patterns, flag)
+      print(f'watching {args.folder} for local changes; remote events with {interval}s fallback')
+    except Exception as exc:
+      print(f'watchdog unavailable, polling every {interval}s: {exc}', file=sys.stderr)
+      print(f'watching {args.folder} every {interval}s')
+
+    events_thread = _remote_events_thread(args, flag, stop_events)
+
+    while True:
+      flag.clear()
+      code = sync_func(args)
+      if code:
+        print(f'watch sync failed; retrying in {interval}s', file=sys.stderr)
+        flag.wait(interval)
+        continue
+
+      if flag.wait(interval):
+        flag.clear()
+        time.sleep(1.0)
+        while flag.wait(1.0):
+          flag.clear()
+  except KeyboardInterrupt:
+    return 0
+  finally:
+    stop_events.set()
+    if observer:
+      observer.stop()
+      observer.join(timeout=5)
+    if events_thread:
+      events_thread.join(timeout=5)

cli/pyproject.toml

@@ -1,11 +1,12 @@
 [project]
 name = "nanoshare-cli"
-version = "0.3.0"
+version = "0.4.1"
 description = "NanoShare desktop CLI and folder sync client"
 readme = "README.md"
 requires-python = ">=3.11"
 dependencies = [
   "httpx==0.28.1",
+  "watchdog==6.0.0",
 ]
 
 [project.scripts]

pyproject.toml

@@ -1,6 +1,6 @@
 [project]
 name = "nanoshare"
-version = "1.24.0"
+version = "1.26.0"
 description = "Add your description here"
 readme = "README.md"
 requires-python = ">=3.13"

routes/__init__.py

@@ -21,6 +21,7 @@ from .side.upload import upload_bp
 
 from .api.cli_auth import cli_auth_bp
 from .api.download import api_download_bp
+from .api.events import api_events_bp
 
 # Health
 from .api.health import health_bp

routes/api/events.py

@@ -0,0 +1,53 @@
+from __future__ import annotations
+
+import asyncio
+import json
+
+from my_modules.app.setup import LIMITER
+from my_modules.decoratory.header import token_required
+from quart import Blueprint, Response, current_app, stream_with_context
+
+api_events_bp = Blueprint('api_events', __name__)
+
+async def _snapshot(user_id: str) -> str:
+  files = await current_app.convex.get_files(user_id)
+  rows = []
+  for item in files or []:
+    if not isinstance(item, dict):
+      continue
+    rows.append({
+      'file_id': item.get('file_id'),
+      'file_name': item.get('file_name'),
+      'file_path': item.get('file_path') or '',
+      'file_size': item.get('file_size'),
+      'expires_at': item.get('expires_at'),
+      'updated_at': item.get('updated_at') or item.get('uploaded_at'),
+    })
+  rows.sort(key=lambda row: str(row.get('file_id') or ''))
+  return json.dumps(rows, sort_keys=True, separators=(',', ':'))
+
+@api_events_bp.get('/api/files/events')
+@LIMITER.limit('6 per minute;60 per hour;')
+@token_required(['files', 'mesh'])
+async def api_file_events(user: dict):
+  user_id = user['sub']
+
+  @stream_with_context
+  async def stream():
+    previous = await _snapshot(user_id)
+    yield 'event: ready\ndata: {}\n\n'
+    while True:
+      await asyncio.sleep(15)
+      current = await _snapshot(user_id)
+      if current != previous:
+        previous = current
+        yield f'event: files.changed\ndata: {current}\n\n'
+      else:
+        yield ': keepalive\n\n'
+
+  response = Response(stream(), content_type='text/event-stream', headers={
+    'Cache-Control': 'no-cache',
+    'X-Accel-Buffering': 'no',
+  })
+  response.timeout = None
+  return response

run.py

@@ -13,6 +13,7 @@ from routes import (
   upload_bp,
   cli_auth_bp,
   api_download_bp,
+  api_events_bp,
   health_bp
 )
 from routes.api.link import link_bp as servicelink_bp
@@ -25,6 +26,7 @@ app.register_blueprint(side_main_bp)
 app.register_blueprint(upload_bp)
 app.register_blueprint(cli_auth_bp)
 app.register_blueprint(api_download_bp)
+app.register_blueprint(api_events_bp)
 
 # ServiceLink node-to-node mesh endpoint (POST /rpc)
 app.register_blueprint(servicelink_bp)

tests/test_nanoshare_cli.py

@@ -9,8 +9,9 @@ sys.path.insert(0, str(Path(__file__).resolve().parents[1] / 'cli'))
 from nanoshare_client import cli
 from nanoshare_client.auth import _CallbackServer
 from nanoshare_client.completion import script as completion_script
-from nanoshare_client.ignore import is_ignored
+from nanoshare_client.ignore import load_ignore_patterns, is_ignored
 from nanoshare_client.table import format_table
+from nanoshare_client.watch import _is_relevant_path
 
 class FakeClient:
   def __init__(self):
@@ -210,6 +211,12 @@ def test_sync_ignores_local_files_from_nanoshareignore(tmp_path, monkeypatch):
   (tmp_path / 'cache').mkdir()
   (tmp_path / 'cache' / 'ignored.txt').write_text('ignored')
   (tmp_path / 'scratch.tmp').write_text('ignored')
+  (tmp_path / '.comments').mkdir()
+  (tmp_path / '.comments' / 'ignored.xml').write_text('<comment />')
+  (tmp_path / '.env').write_text('SECRET=ignored')
+  (tmp_path / '.venv').mkdir()
+  (tmp_path / '.venv' / 'ignored.py').write_text('ignored')
+  (tmp_path / 'Thumbs.db').write_text('ignored')
 
   code = cli.main([
     'sync',
@@ -250,6 +257,56 @@ def test_ignore_patterns_match_files_and_directories():
   assert is_ignored('docs/page.draft.md', patterns)
   assert not is_ignored('docs/page.md', patterns)
 
+def test_default_ignore_patterns_skip_common_generated_files(tmp_path):
+  patterns = load_ignore_patterns(tmp_path)
+
+  assert is_ignored('.comments/comment.xml', patterns)
+  assert is_ignored('.env', patterns)
+  assert is_ignored('.env.local', patterns)
+  assert is_ignored('.venv/bin/python', patterns)
+  assert is_ignored('venv/bin/python', patterns)
+  assert is_ignored('__pycache__/mod.pyc', patterns)
+  assert is_ignored('nested/Thumbs.db', patterns)
+  assert not is_ignored('docs/note.txt', patterns)
+
+def test_watch_loop_retries_after_sync_error(monkeypatch, tmp_path):
+  from nanoshare_client import watch as watch_module
+
+  calls = []
+
+  class FakeFlag:
+    def __init__(self):
+      pass
+
+    def clear(self):
+      pass
+
+    def wait(self, timeout):
+      return False
+
+  def fake_sync(args):
+    calls.append(args.folder)
+    if len(calls) == 1:
+      return 1
+    raise KeyboardInterrupt
+
+  monkeypatch.setattr(watch_module, '_ChangeFlag', FakeFlag)
+  monkeypatch.setattr(watch_module, '_watchdog_observer', lambda *args: None)
+  args = type('Args', (), {'folder': str(tmp_path), 'ignore': [], 'interval': 0.1})()
+
+  code = watch_module.watch_loop(args, fake_sync)
+
+  assert code == 0
+  assert calls == [str(tmp_path), str(tmp_path)]
+
+def test_watch_relevance_ignores_sync_state_and_default_ignores(tmp_path):
+  patterns = load_ignore_patterns(tmp_path)
+
+  assert _is_relevant_path(tmp_path, str(tmp_path / 'note.txt'), patterns)
+  assert not _is_relevant_path(tmp_path, str(tmp_path / '.nanoshare-sync' / 'state.json'), patterns)
+  assert not _is_relevant_path(tmp_path, str(tmp_path / '.comments' / 'comment.xml'), patterns)
+  assert not _is_relevant_path(tmp_path, str(tmp_path / '.env'), patterns)
+
 def test_completion_scripts_include_commands():
   zsh = completion_script('zsh')
   bash = completion_script('bash')

uv.lock

@@ -720,7 +720,7 @@ wheels = [
 
 [[package]]
 name = "nanoshare"
-version = "1.24.0"
+version = "1.26.0"
 source = { virtual = "." }
 dependencies = [
     { name = "aiohttp" },