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bug#63648: 29.0.90; project.el: with switch-use-entire-map, switch-proje
From: |
Juri Linkov |
Subject: |
bug#63648: 29.0.90; project.el: with switch-use-entire-map, switch-project errors on non-project commands |
Date: |
Wed, 20 Sep 2023 20:10:46 +0300 |
User-agent: |
Gnus/5.13 (Gnus v5.13) Emacs/30.0.50 (x86_64-pc-linux-gnu) |
>>> And we should consider whether other-project-prefix should entirely subsume
>>> project-switch-project. Or they should remain separate commands.
>> We could leave project-switch-project unobsoleted indefinitely
>> for users who might prefer it, and users can bind it to C-x p p.
>
> Or we keep the easier-to-use command on 'C-x p p', and the more experienced
> users would rebind that to 'other-project-prefix', when they learn how to
> use it.
Or vice versa.
>>> E.g. would people who customized project-switch-commands to a symbol be
>>> okay with not being able to use the other functionality of
>>> other-project-prefix?
>> Symbolic project-switch-commands is supported by other-project-prefix.
>
> Yes, and that could be a problem: if I as a user want 'C-x p p' to always
> run 'project-find-file', for example (in the other project), but I also
> want to be able to sometimes call 'M-x other-project-prefix' (or use
> a custom binding) to run an arbitrary command in the other project.
With other-project-prefix, users can run 'project-find-file'
in another project with just:
```
(defun other-project-find-file ()
(interactive)
(call-interactively 'other-project-prefix)
(call-interactively 'project-find-file))
```
>>> Or what about the variable project-switch-use-entire-map? I'm not sure
>>> about dropping it, at least without notifying about that in the UI somehow.
>> project-switch-use-entire-map could be handled in other-project-prefix.
>> But is this really needed? I can't imagine why anyone might want
>> to disable keys from project-prefix-map.
>
> I think if project-switch-use-entire-map is still wanted, we should just
> keep these commands separate (the same logic as in the previous paragraph).
No problem, project-switch-use-entire-map can be easily supported in
other-project-prefix.
> Why not remove that option? Consider the current UI (which looks almost the
> same in your latest patch): user types 'C-x p p', chooses the project and
> then sees the prompt which only offers the options from
> project-switch-commands. They are not informed that any other keys could be
> used too. So if we were to change the default behavior, I think this
> UI/prompt needs to change, at the very least.
Agreed, a better prompt needed. Maybe with the standard C-h key for help.
> Do we want to drop the whole "choose a command from the list" thing? Will
> that be an improvement overall, for most users? If you think so, I suppose
> we should make a poll somewhere.
Maybe this short menu is not much needed. OTOH, it doesn't cause distraction.
>>> Finally, the current patch drops the loop, so if the user types the wrong
>>> key, they will need to repeat the command and choose the project again.
>> Indeed, the loop now is the command loop, and maybe it's possible to
>> write a hack to set a catch-all in set-transient-map that is not
>> finished until a key in the map is typed. But as with any command,
>> if the user types a wrong key sequence, then need to type it again.
>> I do this all the time with mistakenly typed keys. I don't see why
>> project keys are the exception.
>
> Maybe because in the middle of it all you have interacted with Emacs to
> choose the other project, and that can be a significant amount of typing?
Then for repeating the previously selected project it will be in the history:
'C-x p p M-p'.
> I suppose, if it worked the other way (first choose the command, and then
> the project), it would make more sense to not care about having the user
> repeat the command sequence.
Like it does when typed e.g. 'C-x p f' in a non-project directory?
>>> So perhaps the simplest incremental change is to add other-project-prefix
>>> which will work with "regular" commands and keep project-switch-project for
>>> project commands (whether it will support "project" commands as well, can
>>> be optional).
>>>
>>> The downside is that it will require a different key binding (or for the
>>> user to redefine the current one), so I'm open to discussing all the
>>> questions above.
>> A different key binding for the commands that do the same thing?
>> Only because the new command uses the command loop?
>
> project-switch-project would continue to show the menu with commands, only
> work with them by default, and obey project-switch-use-entire-map, which,
> when set to t, would enable other commands from the project keymap, but
> only them. All accessible via one character binding. And when
> project-switch-commands is set to a symbol, it would only invoke that one
> command without additional prompting.
>
> other-project-prefix would accept all commands but require full key
> sequence for the invoked command.
And also other-project-prefix will fix such bugs as bug#65558.
> Would it add shortcuts to the commands from the project keymap?
> Possibly. Any ideas how to inform the user about that?
By a different prompt?
- bug#63648: 29.0.90; project.el: with switch-use-entire-map, switch-project errors on non-project commands, (continued)
- bug#63648: 29.0.90; project.el: with switch-use-entire-map, switch-project errors on non-project commands, Juri Linkov, 2023/09/10
- bug#63648: 29.0.90; project.el: with switch-use-entire-map, switch-project errors on non-project commands, Dmitry Gutov, 2023/09/12
- bug#63648: 29.0.90; project.el: with switch-use-entire-map, switch-project errors on non-project commands, Juri Linkov, 2023/09/13
- bug#63648: 29.0.90; project.el: with switch-use-entire-map, switch-project errors on non-project commands, Dmitry Gutov, 2023/09/17
- bug#63648: 29.0.90; project.el: with switch-use-entire-map, switch-project errors on non-project commands, Juri Linkov, 2023/09/18
- bug#63648: 29.0.90; project.el: with switch-use-entire-map, switch-project errors on non-project commands, Dmitry Gutov, 2023/09/18
- bug#63648: 29.0.90; project.el: with switch-use-entire-map, switch-project errors on non-project commands, Dmitry Gutov, 2023/09/18
- bug#63648: 29.0.90; project.el: with switch-use-entire-map, switch-project errors on non-project commands, Juri Linkov, 2023/09/19
- bug#63648: 29.0.90; project.el: with switch-use-entire-map, switch-project errors on non-project commands, Dmitry Gutov, 2023/09/19
- bug#63648: 29.0.90; project.el: with switch-use-entire-map, switch-project errors on non-project commands,
Juri Linkov <=
- bug#63648: 29.0.90; project.el: with switch-use-entire-map, switch-project errors on non-project commands, Dmitry Gutov, 2023/09/20
- bug#63648: 29.0.90; project.el: with switch-use-entire-map, switch-project errors on non-project commands, Juri Linkov, 2023/09/21
- bug#63648: 29.0.90; project.el: with switch-use-entire-map, switch-project errors on non-project commands, Juri Linkov, 2023/09/22