Re: [gentoo-portage-dev] [PATCH gentoolkit] bin: Add merge-driver-ekeyword

[Zac Medico]

On 12/31/20 11:47 AM, Matt Turner wrote:
> Since the KEYWORDS=... assignment is a single line, git struggles to
> handle conflicts. When rebasing a series of commits that modify the
> KEYWORDS=... it's usually easier to throw them away and reapply on the
> new tree than it is to manually handle conflicts during the rebase.
>
> git allows a 'merge driver' program to handle conflicts; this program
> handles conflicts in the KEYWORDS=... assignment. E.g., given an ebuild
> with these keywords:
>
> KEYWORDS="~alpha amd64 arm arm64 ~hppa ppc ppc64 x86"
>
> One developer drops the ~alpha keyword and pushes to gentoo.git, and
> another developer stabilizes hppa. Without this merge driver, git
> requires the second developer to manually resolve the conflict which is
> tedious and prone to mistakes when rebasing a long series of patches.
> With the custom merge driver, it automatically resolves the conflict.
>
> To use the merge driver, configure your gentoo.git as such:
>
> gentoo.git/.git/config:
>
> 	[merge "keywords"]
> 		name = KEYWORDS merge driver
> 		driver = merge-driver-ekeyword %O %A %B %P
>
> gentoo.git/.git/info/attributes:
>
> 	*.ebuild merge=keywords
>
> Signed-off-by: Matt Turner <mattst88@g.o>
> ---
> v3: Address Zac's feedback: use tempfile.TemporaryDirectory

Looks great!
-- 
Thanks,
Zac