As part of its importing process, git-p4 sends a `checkpoint` followed
immediately by `progress` to fast-import to force synchronization.
Due to buffering, it is possible for the `progress` command to not be
flushed before git-p4 begins to wait for the corresponding response.
This causes the script to freeze completely, and is consistently
observable at least on python-3.6.9.
Make sure this command sequence is completely flushed before waiting.
Signed-off-by: Yang Zhao <yang.zhao@xxxxxxxxxxxxxx>
Reviewed-by: Ben Keene <seraphire@xxxxxxxxx>
---
git-p4.py | 1 +
1 file changed, 1 insertion(+)
diff --git a/git-p4.py b/git-p4.py
index c7170c9ae6..68f9f4fdc6 100755
--- a/git-p4.py
+++ b/git-p4.py
@@ -2641,6 +2641,7 @@ def __init__(self):
def checkpoint(self):
self.gitStream.write("checkpoint\n\n")
self.gitStream.write("progress checkpoint\n\n")
+ self.gitStream.flush()
out = self.gitOutput.readline()
if self.verbose:
print("checkpoint finished: " + out)
--
2.21.0.windows.1
