core/series.py: fix error 'Series' object has no attribute 'is_pure_p…

…ull'

When run ingest_mdir.py on local machine, I got error

Exception in thread Thread-1:
Traceback (most recent call last):
  File "/usr/lib64/python3.10/threading.py", line 1009, in _bootstrap_inner
    self.run()
  File "/home/Liu/git/nipa/core/tester.py", line 100, in run
    self.test_series(self.tree, s)
  File "/home/Liu/git/nipa/core/tester.py", line 112, in test_series
    self._test_series(tree, series)
  File "/home/Liu/git/nipa/core/tester.py", line 127, in _test_series
    if series.is_pure_pull():
AttributeError: 'Series' object has no attribute 'is_pure_pull'

Fix it by adding function is_pure_pull for Series object.

Signed-off-by: Hangbin Liu <[email protected]>

core/series.py

@@ -17,6 +17,7 @@ class Series(object):
     def __init__(self, ident=None, title=""):
         self.cover_letter = None
         self.cover_pull = None
+        self.pull_url = None
         self.patches = []
         self.title = title
         self.subject = ""
@@ -39,3 +40,6 @@ def set_cover_letter(self, data):
 
     def add_patch(self, patch):
         self.patches.append(patch)
+
+    def is_pure_pull(self):
+        return bool(self.pull_url)