Mercurial > hg
changeset 44291:89d44cfcdeeb
tags: show how hg behaves if a tags cache entry is truncated
I'm seeing an error of this form in production on the order of once a
month. I'm not sure how it happens, but I suspect interrupting a pull
might result in half written cache entries.
Differential Revision: https://phab.mercurial-scm.org/D8094
| author | Valentin Gatien-Baron <vgatien-baron@janestreet.com> |
|---|---|
| date | Fri, 07 Feb 2020 15:55:26 -0500 |
| parents | d8b53385b1bc |
| children | f5a7cf0adb12 |
| files | tests/test-tags.t |
| diffstat | 1 files changed, 20 insertions(+), 0 deletions(-) [+] |
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--- a/tests/test-tags.t Fri Feb 07 13:54:09 2020 -0500 +++ b/tests/test-tags.t Fri Feb 07 15:55:26 2020 -0500 @@ -371,6 +371,26 @@ 1970/01/01 00:00:00 bob @8dbfe60eff306a54259cfe007db9e330e7ecf866 (5000)> tags exited 0 after * seconds (glob) 1970/01/01 00:00:00 bob @8dbfe60eff306a54259cfe007db9e330e7ecf866 (5000)> blackbox -l 6 +Junk data + missing cache entries results in hg further corrupting the +cache, then failing. + + $ rm -f .hg/cache/tags2-visible + $ truncate .hg/cache/hgtagsfnodes1 -s -10 + $ hg debugtagscache | tail -2 + 4 0c192d7d5e6b78a714de54a2e9627952a877e25a 0c04f2a8af31de17fab7422878ee5a2dadbc943d + 5 8dbfe60eff306a54259cfe007db9e330e7ecf866 0c04f2a8af31de17fab7ffffffffffffffffffff + $ hg tags + abort: data/.hgtags.i@0c04f2a8af31: no match found! + [255] + $ hg debugtagscache | tail -2 + 4 0c192d7d5e6b78a714de54a2e9627952a877e25a 0c04f2a8af31de17fab7422878ee5a2dadbc943d + 5 8dbfe60eff306a54259cfe007db9e330e7ecf866 0c04f2a8af31de17fab7ffffffffffffffffffff +# fix up the cache + $ rm .hg/cache/hgtagsfnodes1 + $ hg tags -q + tip + bar + #if unix-permissions no-root Errors writing to .hgtags fnodes cache are silently ignored