bug#58447: [PATCH] In project-find-file, add absolute file name to history

[Augusto Stoffel <arstoffel@gmail.com>]

On Thu, 27 Oct 2022 at 17:21, Dmitry Gutov wrote:

> On 27.10.2022 16:15, Eli Zaretskii wrote:
>>> Date: Thu, 27 Oct 2022 11:44:09 +0300
>>> Cc:58447@debbugs.gnu.org
>>> From: Dmitry Gutov<dgutov@yandex.ru>
>>>
>>> On 26.10.2022 12:04, Augusto Stoffel wrote:
>>>> I'm copying Dmitry.
>>> Hi!
>>>
>>>> On Tue, 11 Oct 2022 at 22:13, Eli Zaretskii wrote:
>>>>
>>>>>> From: Augusto Stoffel<arstoffel@gmail.com>
>>>>>> Date: Tue, 11 Oct 2022 20:29:24 +0200
>>>>>>
>>>>>> `project-find-file' and related commands share their history with more
>>>>>> general commands like `find-file', so they should add the absolute file
>>>>>> name to history.  Currently, file names relative to the project root are
>>>>>> added.  The attached patch fixes this.
>>>>> Shouldn't project.el have its separate history of file names,
>>>> I'm not sure that's useful, but then the history items should be
>>>> absolute file names anyway.
>>>>
>>>>> perhaps even a project-specific history?
>>>> This might make sense.
>>> I like both of these ideas, except I'm not sure how to implement the
>>> project-specific part better.
>>>
>>> I suppose we won't be passing the history var to completing-read anymore?
>> I thought about a project-specific history variable.
>
> ...one global variable per project?

One thing to consider here is compatibility with savehist-mode and the
like.  I guess the only simple way to achieve this is with one global
variable per project.  And then there would be the issue of when to
garbage-collect the saved save pertaining to old projects.