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authorLibravatar Neeraj Singh <neerajsi@microsoft.com>2021-12-06 22:05:05 +0000
committerLibravatar Junio C Hamano <gitster@pobox.com>2021-12-08 14:06:46 -0800
commitecd81dfc79cf12cc21fc0340da8ca8fcc5aa58a7 (patch)
treec9e99733796f9a1004ddf6997075423716a4b202 /Documentation/config/branch.txt
parenttmp-objdir: new API for creating temporary writable databases (diff)
downloadtgif-ecd81dfc79cf12cc21fc0340da8ca8fcc5aa58a7.tar.xz
tmp-objdir: disable ref updates when replacing the primary odb
When creating a subprocess with a temporary ODB, we set the GIT_QUARANTINE_ENVIRONMENT env var to tell child Git processes not to update refs, since the tmp-objdir may go away. Introduce a similar mechanism for in-process temporary ODBs when we call tmp_objdir_replace_primary_odb. Now both mechanisms set the disable_ref_updates flag on the odb, which is queried by the ref_transaction_prepare function. Peff's test case [1] was invoking ref updates via the cachetextconv setting. That particular code silently does nothing when a ref update is forbidden. See the call to notes_cache_put in fill_textconv where errors are ignored. [1] https://lore.kernel.org/git/YVOn3hDsb5pnxR53@coredump.intra.peff.net/ Reported-by: Jeff King <peff@peff.net> Signed-off-by: Neeraj Singh <neerajsi@microsoft.com> Reviewed-by: Elijah Newren <newren@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
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