On Tue, 27 Apr 2021, Dmitry Gutov wrote:

> On 26.04.2021 21:28, Peter Oliver wrote:
>
>>  Two patches are attached to address this:
>>
>>  - The first patch adds a new choice to ruby-insert-encoding-magic-comment,
>>  unless-utf8, which causes the magic comment not to be inserted if the
>>  encoding is UTF-8.
>>
>>  - The second patch, perhaps more controversially, makes this the default.
>
> Both changes make sense to me.
>
> However, I've looked at the existing code and found a prior change which 
> intended for this to be more customizable already, yet had a minor bug.
>
> Please try out the following patch:

That works for me, and I think is more straightforward than my approach.  Thanks.

Attached is an additional patch which adapts the tests added in my patch for your patch.

-- 
Peter Oliver