Modify store() to create the subdirs when writing the file (1 of 4)

Author: grantjenks

diskcache/core.py

@@ -206,9 +206,26 @@ def store(self, value, read, key=UNKNOWN):
  return 0, MODE_RAW, None, sqlite3.Binary(value)
  else:
  filename, full_path = self.filename(key, value)
+ full_dir, _ = op.split(full_path)
 
- with open(full_path, 'xb') as writer:
- writer.write(value)
+ for count in range(11):
+ with cl.suppress(OSError):
+ os.makedirs(full_dir)
+
+ try:
+ # Another cache may have deleted the directory before
+ # the file could be opened.
+ writer = open(full_path, 'xb')
+ except OSError:
+ if count == 10:
+ # Give up after 10 tries to open the file.
+ raise
+ continue
+
+ with writer:
+ writer.write(value)
+
+ break
 
  return len(value), MODE_BINARY, filename, None
  elif type_value is str: