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log: clean unneeded objects during log --remerge-diff

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The --remerge-diff option will need to create new blobs and trees
representing the "automatic merge" state.  If one is traversing a
long project history, one can easily get hundreds of thousands of
loose objects generated during `log --remerge-diff`.  However, none of
those loose objects are needed after we have completed our diff
operation; they can be summarily deleted.

Add a new helper function to tmp_objdir to discard all the contained
objects, and call it after each merge is handled.

Signed-off-by: Elijah Newren <newren@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
This commit is contained in:
Elijah Newren
2022-02-02 02:37:29 +00:00
committed by Junio C Hamano
parent db757e8b8d
commit 7b90ab467a
5 changed files with 28 additions and 7 deletions
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3
revision.h
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@@ -318,6 +318,9 @@ struct rev_info {
/* misc. flags related to '--no-kept-objects' */
unsigned keep_pack_cache_flags;
/* Location where temporary objects for remerge-diff are written. */
struct tmp_objdir *remerge_objdir;
};
int ref_excluded(struct string_list *, const char *path);