Mercurial > hg-stable
view tests/test-update-dest.t @ 33668:cde4cfeb6e3e stable
ui: restore behavior to ignore some I/O errors (issue5658)
e9646ff34d55 and 1bfb9a63b98e refactored ui methods to no longer
silently swallow some IOError instances. This is arguably the
correct thing to do. However, it had the unfortunate side-effect
of causing StdioError to bubble up to sensitive code like
transaction aborts, leading to an uncaught exceptions and failures
to e.g. roll back a transaction. This could occur when a remote
HTTP or SSH client connection dropped. The new behavior is
resulting in semi-frequent "abandonded transaction" errors on
multiple high-volume repositories at Mozilla.
This commit effectively reverts e9646ff34d55 and 1bfb9a63b98e to
restore the old behavior.
I agree with the principle that I/O errors shouldn't be ignored.
That makes this change... unfortunate. However, our hands are tied
for what to do on stable. I think the proper solution is for the
ui's behavior to be configurable (possibly via a context manager).
During critical sections like transaction rollback and abort, it
should be possible to suppress errors. But this feature would not
be appropriate on stable.
author | Gregory Szorc <gregory.szorc@gmail.com> |
---|---|
date | Tue, 15 Aug 2017 13:04:31 -0700 |
parents | 86246530b8d2 |
children | 8abbae93045a |
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Test update.requiredest $ cd $TESTTMP $ cat >> $HGRCPATH <<EOF > [commands] > update.requiredest = True > EOF $ hg init repo $ cd repo $ echo a >> a $ hg commit -qAm aa $ hg up abort: you must specify a destination (for example: hg update ".::") [255] $ hg up . 0 files updated, 0 files merged, 0 files removed, 0 files unresolved $ HGPLAIN=1 hg up 0 files updated, 0 files merged, 0 files removed, 0 files unresolved $ hg --config commands.update.requiredest=False up 0 files updated, 0 files merged, 0 files removed, 0 files unresolved $ cd .. Check update.requiredest interaction with pull --update $ hg clone repo clone updating to branch default 1 files updated, 0 files merged, 0 files removed, 0 files unresolved $ cd repo $ echo a >> a $ hg commit -qAm aa $ cd ../clone $ hg pull --update abort: update destination required by configuration (use hg pull followed by hg update DEST) [255]