this post was submitted on 14 Jan 2025
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YAML is fine as a configuration language and ok data input language.
YAML is absolutely cursed as a programming language. As in Ansible has created a really shitty programming language inside of YAML. Should be burned with fire.
Reminds me of AutoHotkey
AHK grammar is a fucking mess, honestly.
I guess it's like HTML if it tried to also adopt it's own scripting language. Whereas JS interacts with the HTML DOM. Sure, it has quirks, but essentially modified a config.
I've never found a nice way writing YAML with variables and configurability.
Trying to use yaml to natively describe how a yaml config should be produced is broken. It diverges from the underlying schema, and (because it's
.yaml) isn't distinguishable from any other yaml.Things like helm treat yaml as a template. And I don't think language servers & tooling are up to scratch yet (happy to be corrected). So basic yaml formatters shit the bed.
Yaml is a computer readable config file that tries to be human readable, and fails at being actually useful.
Why projects try and make it useful, I will never understand.
I honestly think generating yaml from something like python would be a million times easier.
But then tools like ansible adopt yaml to essentially be a scripting language. As opposed to creating an actually decent solution that uses both python (to generate) and yaml (to apply).
Or whatever language.