Re: [PATCH 0/4] Loosening "two project merge" safety

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Junio C Hamano <gitster@xxxxxxxxx> writes:

> Yaroslav Halchenko gave a vague "forcing 'git merge' users to always
> give --allow-unrelated-histories option when they create crap/insane
> merges are not nice", which I couldn't guess the validity due to
> lack of concrete use case.  Just in case it is substantiated, here
> is a series to selectively and safely loosen the safety for specific
> use cases and users.
>
> Junio C Hamano (4):
>   t3033: avoid 'ambiguous refs' warning
>   pull: pass --allow-unrelated-histories to "git merge"
>   merge: GIT_MERGE_ALLOW_UNRELATED_HISTORIES environment
>   merge: introduce merge.allowUnrelatedhistories configuration option

I've queued the first two on 'pu'.

I do not think the Kernel folks do not mind the latter two too much,
but I am holding onto them for now.  Unless the original "Gaah" did
not come from Linus, I might even have said that this additional
safety should be opt-in for people who know what they are doing
(i.e. those who want the safety would set the new configuration),
but I am undecided right now.

>
>  Documentation/git-merge.txt     | 14 +-------------
>  Documentation/git.txt           |  7 +++++++
>  Documentation/merge-config.txt  |  7 +++++++
>  Documentation/merge-options.txt |  8 ++++++++
>  builtin/merge.c                 |  6 ++++++
>  builtin/pull.c                  | 11 +++++++++++
>  t/t3033-merge-toplevel.sh       | 31 ++++++++++++++++++++++++++++++-
>  t/t5521-pull-options.sh         | 28 ++++++++++++++++++++++++++++
>  8 files changed, 98 insertions(+), 14 deletions(-)
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