bat --list-themes fails with SIGSEGV

[jswny]

As you can see, when I run bat --list-themes, the command fails with SIGSEV. I tried this in Bash and Fish, both resulted in the same failure.

I'm running this on MacOS Catalina 10.15, and I have bat version 0.12.1 installed via Brew.

[eth-p]

The --list-themes flag highlights the theme previews with Syntect. The segfault you encountered is likely related to #680, which is caused by an incompatibility with oniguruma (the regex library used by Syntect) and macOS 10.15.

This should be fixed in the next release.

[jswny]

@eth-p Thanks, I've been taking a look at that issue and the related ones. Is there any way to work around this problem and build bat manually? I couldn't seem to find a definitive workaround in the linked issue.

[eth-p]

There isn't any workaround for --list-themes, unfortunately. If you don't mind getting your hands dirty and building bat yourself, there is a fix in #680 though. It involves building onig with the latest oniguruma master and using that instead of the version syntect specified.

I'm not entirely sure on the process, but I assume you would need to clone syntect and change its Cargo.toml to reference the latest onig crate (which fixed the segfaults), and then change bat's Cargo.toml to reference your local copy of syntect.

[jswny]

@eth-p Ok thank you, I will try to do it manually for now.

[sharkdp]

@jswny Thank you for reporting this. I think we close this as a duplicate of #680?

[jswny]

@sharkdp Yes I think so, sorry for not finding that issue earlier, I was having a hard time figuring out what actually was going wrong to search for similar issues.

[sharkdp]

no worries, thanks.