chore: automatic commit 2025-04-30 12:48

venv/lib/python3.11/site-packages/gunicorn/reloader.py

@@ -0,0 +1,132 @@
+# -*- coding: utf-8 -
+#
+# This file is part of gunicorn released under the MIT license.
+# See the NOTICE for more information.
+# pylint: disable=no-else-continue
+
+import os
+import os.path
+import re
+import sys
+import time
+import threading
+
+COMPILED_EXT_RE = re.compile(r'py[co]$')
+
+
+class Reloader(threading.Thread):
+    def __init__(self, extra_files=None, interval=1, callback=None):
+        super().__init__()
+        self.daemon = True
+        self._extra_files = set(extra_files or ())
+        self._interval = interval
+        self._callback = callback
+
+    def add_extra_file(self, filename):
+        self._extra_files.add(filename)
+
+    def get_files(self):
+        fnames = [
+            COMPILED_EXT_RE.sub('py', module.__file__)
+            for module in tuple(sys.modules.values())
+            if getattr(module, '__file__', None)
+        ]
+
+        fnames.extend(self._extra_files)
+
+        return fnames
+
+    def run(self):
+        mtimes = {}
+        while True:
+            for filename in self.get_files():
+                try:
+                    mtime = os.stat(filename).st_mtime
+                except OSError:
+                    continue
+                old_time = mtimes.get(filename)
+                if old_time is None:
+                    mtimes[filename] = mtime
+                    continue
+                elif mtime > old_time:
+                    if self._callback:
+                        self._callback(filename)
+            time.sleep(self._interval)
+
+
+has_inotify = False
+if sys.platform.startswith('linux'):
+    try:
+        from inotify.adapters import Inotify
+        import inotify.constants
+        has_inotify = True
+    except ImportError:
+        pass
+
+
+if has_inotify:
+
+    class InotifyReloader(threading.Thread):
+        event_mask = (inotify.constants.IN_CREATE | inotify.constants.IN_DELETE
+                      | inotify.constants.IN_DELETE_SELF | inotify.constants.IN_MODIFY
+                      | inotify.constants.IN_MOVE_SELF | inotify.constants.IN_MOVED_FROM
+                      | inotify.constants.IN_MOVED_TO)
+
+        def __init__(self, extra_files=None, callback=None):
+            super().__init__()
+            self.daemon = True
+            self._callback = callback
+            self._dirs = set()
+            self._watcher = Inotify()
+
+            for extra_file in extra_files:
+                self.add_extra_file(extra_file)
+
+        def add_extra_file(self, filename):
+            dirname = os.path.dirname(filename)
+
+            if dirname in self._dirs:
+                return
+
+            self._watcher.add_watch(dirname, mask=self.event_mask)
+            self._dirs.add(dirname)
+
+        def get_dirs(self):
+            fnames = [
+                os.path.dirname(os.path.abspath(COMPILED_EXT_RE.sub('py', module.__file__)))
+                for module in tuple(sys.modules.values())
+                if getattr(module, '__file__', None)
+            ]
+
+            return set(fnames)
+
+        def run(self):
+            self._dirs = self.get_dirs()
+
+            for dirname in self._dirs:
+                if os.path.isdir(dirname):
+                    self._watcher.add_watch(dirname, mask=self.event_mask)
+
+            for event in self._watcher.event_gen():
+                if event is None:
+                    continue
+
+                filename = event[3]
+
+                self._callback(filename)
+
+else:
+
+    class InotifyReloader(object):
+        def __init__(self, extra_files=None, callback=None):
+            raise ImportError('You must have the inotify module installed to '
+                              'use the inotify reloader')
+
+
+preferred_reloader = InotifyReloader if has_inotify else Reloader
+
+reloader_engines = {
+    'auto': preferred_reloader,
+    'poll': Reloader,
+    'inotify': InotifyReloader,
+}