bat --diff

[sharkdp]

This PR adds a new --diff option that can be used to only show lines close to Git changes, i.e. added, removed or modified lines.

The amount of additional context can be controlled with --diff-context=N.

Using this like

batdiff() {
    git diff --name-only --diff-filter=d | xargs bat --diff
}

essentially results in a version of git diff with syntax highlighting (but without being able to see the old version).

closes #23

[ErichDonGubler]

YASSS

There is much win here. :)

[Mouvedia]

Does it support strike for color.diff.old?

[sharkdp]

but without being able to see the old version

no

[ErichDonGubler]

Does it support strike for color.diff.old?

No, technically because this doesn't use Git config, but conceptually because...this doesn't display the old part of the diff.

[eth-p]

This is great! Do you mind if I add a variant of your batdiff wrapper to bat-extras?

[sharkdp]

if I add a variant of your batdiff wrapper to bat-extras?

of course! 👍