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When bup split fails, display its stderr

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It seems worth noting here that I emailed bup's author about bup split
being noisy on stderr even with -q in approximately 2011. That never got
fixed. Its current repo on github only accepts pull requests, not bug
reports. Needing to add such complexity to deal with such a longstanding
unfixed issue is not fun.

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This commit is contained in:
Joey Hess 2022-08-05 13:57:20 -04:00
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[[!comment format=mdwn
username="joey"
subject="""comment 1"""
date="2022-08-05T15:57:26Z"
content="""
This seems most likely to be a concurrency issue in bup itself, or in how
it uses git.
However, I have not been able to reproduce it so far. I tried making 8
different files each 100 mb, and was able to copy them all to a bup repository
concurrently with no failures.
That was with bup 0.32. What is your bup version?
It would be good to know what error message bup outputs.
Unfortunately, since `bup split -q` is noisy on stderr, git-annex
sinks it to /dev/null and so you don't see it.
I've changed git-annex to display the stderr when `bup split` fails.
So if you can get an updated build of git-annex, and reproduce this problem,
we'll be able to see if this is a bug in bup, or what.
"""]]