Re: [PATCH v11 25/26] meson: fix conflicts with in-flight topics

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Patrick Steinhardt <ps@xxxxxx> writes:

> As support for Meson is still in-flight we have to accommodate for
> conflicts with topics in "seen". The following conflicts are being
> addressed in this commit:
>
>   - ej/cat-file-remote-object-info adds t1017 and "fetch-object-info.c".
>
>   - ds/path-walk-1 adds t6601 as well as "path-walk.c" and
>     "test-path-walk.c".
>
>   - js/libgit-rust adds "common-exit.c" and "common-init.c".
>
>   - ds/name-hash-tweaks adds "t/helper/test-name-hash.c".
>
> This is somewhat painful in the current state where Meson is not yet
> part of the main tree, but we'll have to live with that for the time
> being.
>
> I've split this commit out into a separate fixup-style commit such that
> it is possible to test this topic both with and without "seen" merged
> into it. You can simply revert this commit to test without "seen".

Now I had to reconstruct these "fixup-style" commits and they appear
under ref/merge-fix/ hierarchy in my broken-out repository published
at https://github.com/gitster/git.git/ (and no other fallback URLs;
it might make sense to have another repository for redundancy, but
it is an unrelated tangent).  In addition to these listed four, a
newly added ds/backfill also needs refs/merge-fix/ds/backfill to
adjust.

What I noticed while performing this exercise to place ps/build~1
(i.e. the series without this step) immediately on top of where the
history leading to 'seen' has a commit whose tree matches that of
'next' is that we need some "distributed" (read: put the burden on
topic authors, not on the onwer of ps/build topic, and not on the
maintainer) way to make sure various list of files in meson.build,
t/meson.build, and t/helper/meson.build are in sync with
corresponding list of files in the Makefile world.  It _should_ be
automatable in theory, and to help those who develop against the
current practice of treating Makefile as the authoritative build
system, a Makefile target that tells them that they added a new file
to Makefile and removed a file from t/Makefile but they forgot to
make corresponding changes to meson.build and t/meson.build files
would be very beneficial.  We could run that target as a part of
"make test".

Of course, those who care about keeping CMake build up to date can
add something similar hooked up to help others help themselves.




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