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-rw-r--r--lib/bb/fetch2/git.py5
1 files changed, 5 insertions, 0 deletions
diff --git a/lib/bb/fetch2/git.py b/lib/bb/fetch2/git.py
index 1faa2145c..db1e28637 100644
--- a/lib/bb/fetch2/git.py
+++ b/lib/bb/fetch2/git.py
@@ -361,6 +361,11 @@ class Git(FetchMethod):
# we need to try premirrors first as using upstream is destined to fail.
if not trusted_network(d, ud.url):
return True
+ # the following check is to ensure incremental fetch in downloads, this is
+ # because the premirror might be old and does not contain the new rev required,
+ # and this will cause a total removal and new clone. So if we can reach to
+ # network, we prefer upstream over premirror, though the premirror might contain
+ # the new rev.
if os.path.exists(ud.clonedir):
return False
return True