this post was submitted on 06 Sep 2024
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Programming
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Because people over use it. YAML is pretty good for short config files that need to be human readable but it falls apart with complex multi line strings and escaping.
I think there are much better clearly delimited for machine reading purposes formats out there that you should prefer if you're writing a really heavy config file and, tbh, I think for everything else
.iniis probably "good enough".I agree - YAML is not suitable for complex cases that people use it in, like ~~Terraform~~ and Home Assistant. My pet peeve is a YAML config in a situation that really calls for more abstraction, like functions and variables. I'd like to see more use of the class of configuration languages that support that stuff, like Dhall, Cue, and Nickel.
There is another gotcha which is that YAML has more room for ambiguity than, say, JSON. YAML has a lot of ways to say
trueandfalse, and it's implicit quoting is a bit complex. So some values that you expect to be strings might be interpreted as something els.What YAML does Terraform use? HCL is similar but different enough to YAML.
Oh, thanks for calling that out. I think I may have mixed up some of the frustrations I experienced at an old job.
Maybe you're thinking of Ansible?
Yes, there's a good example. Ansible would make more sense if its configuration language was Nix...
But if one is already using nix, then just use nix