Scrolling with Magic Trackpad on MBP is not supported

[vt128]

What version of bat are you using?
[paste the output of bat --version here]

bat 0.16.0

Describe the bug you encountered:

Scrolling with Magic Trackpad on MBP is not supported.

What did you expect to happen instead?

Can scroll like using less

How did you install bat?

Homebrew

---

[paste the output of info.sh here]

[eth-p]

What version of less are you using?

If you're using an old version, bat automatically passes --no-init to less in order to avoid a bug. Unfortunately, that also has the effect of disabling scroll wheel support.

If it's less than version 530, a brew install less should fix the issue.

[vt128]

On macOS:

less 487 (POSIX regular expressions)
Copyright (C) 1984-2016  Mark Nudelman

less comes with NO WARRANTY, to the extent permitted by law.
For information about the terms of redistribution,
see the file named README in the less distribution.
Homepage: http://www.greenwoodsoftware.com/less

On Ubuntu 18.04 with the same issue:

❯ less --version
less 487 (GNU regular expressions)
Copyright (C) 1984-2016  Mark Nudelman

less comes with NO WARRANTY, to the extent permitted by law.
For information about the terms of redistribution,
see the file named README in the less distribution.
Homepage: http://www.greenwoodsoftware.com/less

[eth-p]

Yeah, your version of less is outdated. I'm not sure how to get the latest for Ubuntu, but on your Mac the issue should be fixed if you install less through homebrew.

[vt128]

Well, the dep on less seems a little bit strange.

I'm not familiar with Rust, but have you ever think about rewrite this very dep, or compile latest less with Rust code of bat (some tech like JIT, or cgo in Golang)?

[sharkdp]

Well, the dep on less seems a little bit strange.

Why? bat uses less as an external pager. If you talk about versioning, yes. Package maintainers should probably make sure that we have a compatible version of less installed. We would need to figure out what that version is. It depends on the OS. For Linux/macOS, I would guess that 551 is fine. For Windows, a very recent version is needed to avoid a few bugs.

[sharkdp]

I'm not familiar with Rust, but have you ever think about rewrite this very dep,

yes, see #1053

or compile latest less with Rust code of bat (some tech like JIT, or cgo in Golang)?

I have not thought about that, but I don't really want to get into this. We support a large number of operating systems and CPU architectures. I think this is better left to OS package maintainers.

[sharkdp]

I'm closing this for now, but maybe we should consider adding "less" as a dependency for the "bat" homebrew package?