added sneakernet auto importing

exportblocks now takes argument

src/sneakernet/__init__.py

@@ -0,0 +1,54 @@
+"""Onionr - Private P2P Communication.
+
+Detect new block files in a given directory
+"""
+import os
+
+from watchdog.observers import Observer
+from watchdog.events import FileSystemEventHandler
+
+import config
+from filepaths import block_data_location
+from etc.onionrvalues import BLOCK_EXPORT_FILE_EXT
+from onionrblocks.blockimporter import import_block_from_data
+"""
+    This program is free software: you can redistribute it and/or modify
+    it under the terms of the GNU General Public License as published by
+    the Free Software Foundation, either version 3 of the License, or
+    (at your option) any later version.
+
+    This program is distributed in the hope that it will be useful,
+    but WITHOUT ANY WARRANTY; without even the implied warranty of
+    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+    GNU General Public License for more details.
+
+    You should have received a copy of the GNU General Public License
+    along with this program.  If not, see <https://www.gnu.org/licenses/>.
+"""
+
+watch_paths = config.get('transports.sneakernet.paths', list([]))
+if block_data_location not in watch_paths:
+    watch_paths.append(block_data_location)
+
+
+class _Importer(FileSystemEventHandler):
+    @staticmethod
+    def on_created(event):
+        if not event.src_path.endswith(BLOCK_EXPORT_FILE_EXT):
+            return
+        with open(event.src_path, 'rb') as block_file:
+            import_block_from_data(block_file.read())
+            if block_data_location in event.src_path:
+                try:
+                    os.remove(event.src_path)
+                except FileNotFoundError:
+                    pass
+
+
+def sneakernet_import_thread():
+    observer = Observer()
+    for path in watch_paths:
+        observer.schedule(_Importer(), path, recursive=True)
+    observer.start()
+    while observer.isAlive():
+        observer.join(60)