Import code

resources/lib/cache.py

@@ -0,0 +1,50 @@
+# encoding: utf-8
+#
+# SPDX-License-Identifier: LGPL-2.1-or-later
+
+from __future__ import unicode_literals, absolute_import, division
+
+import io
+import os
+import time
+import glob
+import sys
+
+class Cache(object):
+  config_directory = ''
+
+  def __init__(self, config_directory):
+    self.config_directory = config_directory
+
+  def load_file(self, filename):
+    filename = self.config_directory + filename
+    if not os.path.exists(filename): return None
+    with io.open(filename, 'r', encoding='utf-8') as handle:
+      return handle.read()
+
+  def save_file(self, filename, data):
+    if sys.version_info[0] < 3:
+      if not isinstance(data, unicode):
+        data = unicode(data, 'utf-8')
+    with io.open(self.config_directory + filename, 'w', encoding='utf-8', newline='') as handle:
+      handle.write(data)
+
+  def load(self, filename, cache_minutes = 24*60):
+    filename = self.config_directory + filename
+    if os.path.exists(filename) and (time.time() - os.path.getmtime(filename) < cache_minutes*60):
+      with io.open(filename, 'r', encoding='utf-8') as handle:
+        return handle.read()
+    return None
+
+  def remove_file(self, filename):
+    filename = self.config_directory + filename
+    if os.path.exists(filename):
+      os.remove(filename)
+
+  def clear_config(self):
+    types = ('*.conf', '*.json')
+    files = []
+    for ext in types:
+      files.extend(glob.glob(self.config_directory + ext))
+    for filename in files:
+      os.remove(filename)