🐛 Incompatible with binary caches from latest bat

[kidonng]

bat recently released a new version v0.19.0, after updating I got the following error when using bat:

The binary caches for the user-customized syntaxes and themes in '/path/to/cache' are not compatible with this version of bat (0.19.0). To solve this, either rebuild the cache (bat cache --build) or remove the custom syntaxes/themes (bat cache --clear).
For more information, see:

https://github.com/sharkdp/bat#adding-new-syntaxes--language-definitions

After rebuilding the cache, delta started falling back to default syntax theme. Turns out delta needs to release a compatible version as well?

[dandavison]

Thanks! So if I'm understanding correctly, the problem here affects people (like me, and you) who have custom themes/syntaxes in a local cache which we are sharing with bat. Currently delta has copied/vendored code handling binary assets from bat . But I wonder if we can make use of some of the bat-as-a-library features mentioned in the release notes: https://github.com/sharkdp/bat/releases/tag/v0.19.0

[dandavison]

The immediate fix here would be to use an older version of bat to create the custom theme for delta. The real fix is this unreleased delta PR #903 and the accompanying bat PR sharkdp/bat#2030 which would need to be released first.

[michaelblyons]

...in April, they say. I'll keep my bat pinned to 0.18.3 for a while longer I suppose.

[dandavison]

Right. In the interim we could, in principle, update the binary assets in delta "manually" and apply any changes to our vendored bat code that are necessary, and release delta like that. Perhaps there are no code changes required -- it's just that when this issue was opened I decided to look into using bat as a library properly rather than doing the delta binary assets upgrade that I usually do at delta releases. It is time for a delta release -- I was trying to get #939 in.

[michaelblyons]

No worries. It's not your fault.

In any case, it's no great hardship. I use bat once every two months. I first installed it to generate a delta color scheme. 😝

[dandavison]

This is fixed in the latest delta version (the bat PR was released).