Additional diff representation like GNU diff

[mbrandl87]

Overview of the feature request

It would be really helpful if there was a possibility to have diffs represented like GNU diff does with < and > instead of colouring.
It would be even nicer if there was also paging involved.

Motivation for or Use Case

When the generator detects a file conflict and asks if it should overwrite or diff, as a blind user I am almost unable to tell what changed as it just uses different colours.
If you could pipe the files into the diff command, it would be way easier to grasp.
If "more" or "less" could enter the game as well, I wouldn't have to hit shipft+page-up dozens of times just to get at the beginning. :)

Or does that already work and there is a setting I just didn't find sofar? :)

Related issues or PR

• Checking this box is mandatory (this is just to show you read everything)

[mshima]

I’ve changed to show the diff similar to git using +/- prefixes.
The pagination would probably involve opening an outside command like less.
It could be implemented as an additional option here https://github.com/yeoman/yeoman-api/blob/36746f8c49fe56c1971decf29b6c493ec4cf0d17/workspaces/conflicter/src/conflicter.ts#L362

[mbrandl87]

Thx that was really quick :) I guess that will be in the next JHipster release?

I think I found the location inside the logger where a function using a pager could be added and also a simple npm dependency feeding an outside pager. Maybe I'll try to do a PR if its ok.

I haven't read all the code so far, is there anything simpler to try it out than getting jhipster main and include my changed version, create a project and trigger a diff? Something at the tests maybe?

[mshima]

Tests are not interactive.
Many times I start by changing the code directly inside node_modules.
Since the project is inside a monorepository, I don’t know the best approach, I think linking and install from git doesn’t work.