update utils

utils.py

@@ -1,4 +1,16 @@
+import os
+import re
 
+def resolve_roman(s):
+    extra = re.compile(r'^\d+(.*?)$').findall(s)
+    if extra:
+        extra = extra[0].lower()
+        new = {
+            'i': '1', 'ii': '2', 'iii': '3', 'iv': '4', 'v': '5',
+            'vi': '6', 'vii': 7, 'viii': '8', 'ix': '9', 'x': '10'
+        }.get(extra, extra)
+        return s.replace(extra, new)
+    return s
 
 def upgrade_originals():
     import item.models
@@ -30,3 +42,24 @@ def remove_deselected_files():
         if changed:
             i.save()
 
+def write_if_new(path, data, mode=''):
+    read_mode = 'r' + mode
+    write_mode = 'w' + mode
+    if os.path.exists(path):
+        with open(path, read_mode) as fd:
+            old = fd.read()
+    else:
+        old = ""
+    is_new = data != old
+    if path.endswith(".kdenlive"):
+        is_new = re.sub(r'\{.{36}\}', '', data) != re.sub(r'\{.{36}\}', '', old)
+    if is_new:
+        with open(path, write_mode) as fd:
+            fd.write(data)
+
+def format_duration(duration, fps, audio=False):
+    if audio:
+        return float('%0.5f' % (int(duration * fps) / fps))
+    else:
+        return float('%0.5f' % (round(duration * fps) / fps))
+