git: 73c14cc76b5f - main - Remove history.immutable from .arcconfig

[John Baldwin]

On 4/13/21 4:38 AM, Alex Richardson wrote:
> The branch main has been updated by arichardson:
> 
> URL: https://cgit.FreeBSD.org/src/commit/?id=73c14cc76b5f815c6b1bd93089ebafdd9269d343
> 
> commit 73c14cc76b5f815c6b1bd93089ebafdd9269d343
> Author:     Alex Richardson <arichardson at FreeBSD.org>
> AuthorDate: 2021-04-13 11:36:24 +0000
> Commit:     Alex Richardson <arichardson at FreeBSD.org>
> CommitDate: 2021-04-13 11:36:25 +0000
> 
>      Remove history.immutable from .arcconfig
>      
>      The `history.immutable` setting prevents arcanist from updating
>      the commit messages with the Differential URL and therefore
>      makes updating patches awkward with a rebase workflow.
>      
>      In case this new behaviour is not wanted the old one can be restored
>      by running `arc set-config --local history.immutable true`.
>      
>      Test Plan: `arc diff --create HEAD^` adds the metadata now.
>      
>      Reviewed By:    #phabric-admin, imp, lwhsu
>      Differential Revision: https://reviews.freebsd.org/D27971

FYI, this might break git arc since arc will now start rewriting commits
rather than leaving them alone.  If so, we can look use 'arc diff'
with --head to turn off some of its magic.  It would also avoid having
'git arc' have to adjust the working copy.

-- 
John Baldwin