basic backup implementation (in progress)

TODO

@@ -12,6 +12,7 @@ New features:
 - javascript editor
 - persisted recent notes (is wiped out after reload)
 - sync of current page?
+- create new subnote from inside the editor - possibly with selection of text
 
 Refactorings:
 - modularize frontend

src/backup.py

@@ -0,0 +1,22 @@
+from datetime import datetime
+
+import utils
+from sql import getOption, setOption
+import config_provider
+from shutil import copyfile
+
+def backup():
+    now = utils.nowTimestamp()
+    last_backup_date = int(getOption('last_backup_date'))
+
+    if now - last_backup_date > 43200:
+        config = config_provider.getConfig()
+
+        document_path = config['Document']['documentPath']
+        backup_directory = config['Backup']['backupDirectory']
+
+        date_str = datetime.utcnow().strftime("%Y-%m-%d %H:%M")
+
+        copyfile(document_path, backup_directory + "/" + "backup-" + date_str + ".db")
+
+        setOption('last_backup_date', now)

src/tree_api.py

@@ -1,19 +1,20 @@
 import base64
 import os
-import math
-import time
 
 from flask import Blueprint, jsonify
 from flask_login import login_required
 
 from sql import getResults, getSingleResult, getOption
 import utils
+import backup
 
 tree_api = Blueprint('tree_api', __name__)
 
 @tree_api.route('/api/tree', methods = ['GET'])
 @login_required
 def getTree():
+    backup.backup()
+
     notes = getResults("select "
                        "notes_tree.*, "
                        "COALESCE(clone.note_title, notes.note_title) as note_title, "

src/utils.py

@@ -2,4 +2,4 @@ from datetime import datetime
 import time
 
 def nowTimestamp():
-    return time.mktime(datetime.utcnow().timetuple())
+    return int(time.mktime(datetime.utcnow().timetuple()))