Add an equivalent to `git add -u`

[tmke8]

Is your feature request related to a problem? Please describe.
I often want to stage and commit all changes to files that are already tracked by git, but not add new files. With git, this can be done with git add -u or git commit -a. (I might be the only one who does that though, in which case feel free to ignore this.)

Describe the solution you'd like
There is already status_stage_all, so what I would like to have is status_stage_update (or something like that) which I can map, for example, to u.

Describe alternatives you've considered
The alternative is going through all files in the status view and either press down or enter; or first staging everything and then removing some changes.

[extrawurst]

the options dialog should solve this. in the options you can hide the untracked files and it will effectively also only stage files visible then

[Revantus]

@extrawurst When I set Status: Show Untracked to No to hide the untracked files and then Stage All, it still stages the untracked file(s).

For commits with a lot of changed files, you could still hide the untracked files and press enter repeatedly, but the main goal is to stage only updated files in a single pass.

[extrawurst]

That’s a bug then actually

[extrawurst]

@thomkeh so stage_all command honors the options set for untracked files now.

[tmke8]

Nice, that works for me.