yaml-language-server
dhall-lang
yaml-language-server | dhall-lang | |
---|---|---|
10 | 113 | |
973 | 4,133 | |
2.1% | 0.2% | |
5.6 | 6.0 | |
8 days ago | 2 months ago | |
TypeScript | Dhall | |
MIT License | BSD 3-clause "New" or "Revised" License |
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yaml-language-server
- [Neovim] [yaml-companion.nvim] obtenir, définir et automatiquement les schémas yaml dans vos tampons
- [Emacs] Aide à faire travailler le serveur de langue YAML avec EGLOT
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[question] How to configure yamlls formatter with lsp-zero?
Does anyone know how to get yaml formatting working with yamlls (https://github.com/redhat-developer/yaml-language-server)?
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Help getting the yaml language server working with eglot
I'm starting to work with kubernetes and it would be really nice to have the full completion that Redhat's language server offers for k8s yaml files if you associate the right schema with it.
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Handy Yaml Tricks!
Most modern editors and IDEs support the Language Server Protocol, which powers the code completion, validation, and tooltip features. Combined with a Yaml Language Server, we can get rich completion for Yaml files!
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Is it possible to configure Flycheck + Emacs + LSP to properly parse YAML files with go templates?
I don't think the YAML language server can handle this. Here's the issue about this: https://github.com/redhat-developer/yaml-language-server/issues/220
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What is your lsp configuration? What do you think works the best?
Here's an example .dir-locals.el configuration I'm using with yaml-language-server
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Using Rust to not have to touch Yaml in k8s land
Check out https://github.com/redhat-developer/yaml-language-server if you want to get that IDE experience with YAML from those openapi specs
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Implementing the Language Server Protocol
For our custom LSP, we'll start by forking the yaml-language-server maintained by redhat.
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[yaml-companion.nvim] Get, set and autodetect YAML schemas in your buffers
One of the things I was missing in my nvim setup was the ability to choose the schema that yamlls uses in the various buffers. This server also intentionally leaves out some cool features like content aware schema detection and, since I could never get the Schema Store functionality to work when paired with the hard-coded Kubernetes support in the language server… I have converted all the hacky lua I had into this plugin. Sharing it here in case it is useful to anyone https://github.com/someone-stole-my-name/yaml-companion.nvim
dhall-lang
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Apple releases Pkl – onfiguration as code language
Fail to see how this is any different than Dhall (https://dhall-lang.org/) other than it produces plists too.
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Pkl, a Programming Language for Configuration
Kubernetes config is a decent example. I had ChatGPT generate a representative silly example -- the content doesn't matter so much as the structure:
https://gist.github.com/cstrahan/528b00cd5c3a22e3d8f057bb1a7...
Now consider 100s (if not 1000s) of such files.
I haven't given Pkl an in depth look yet, but I can say that the Industry Standard™ of "simple YAML" + string substitution (with delicate, error prone indentation -- since YAML is indentation sensitive) is easily beat by any of:
- https://jsonnet.org/
- https://nickel-lang.org/
- https://nixos.org/manual/nix/stable/language/index.html
- https://dhall-lang.org/
- (insert many more here, probably including Pkl)
- Why the fuck are we templating YAML? (2019)
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Is Htmx Just Another JavaScript Framework?
There are underpowered languages / tools, that can only solve a problem for which they are intended poorly. But not all limited tools are like that.
Say, eBPF is prominently not Turing-complete, which allows to guarantee that a eBPF program terminates, and even how soon. Still eBPF is hugely useful in its area.
Or, say, regular expressions are limited to regular languages; in particular, they famously [1] cannot process recursive structures, like trees. Still tools like grep / ag / rg are mightily useful.
Yes, I agree that YAML is underpowered for proper k8s configuration! But it's also too powerful for its own good in other aspects [2]. I wish Google used Dhall [3] or their own purely functional config language (FCL? I already forgot the name) instead of YAML; sadly, they did not.
[1]: https://stackoverflow.com/a/1732454/223424
[2]: https://ruudvanasseldonk.com/2023/01/11/the-yaml-document-fr...
[3]: https://dhall-lang.org/
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10 Ways for Kubernetes Declarative Configuration Management
Dhall: Dhall is a programmable configuration language that combines features like JSON, functions, types, and import capabilities. Its style leans towards functional programming, so if you're familiar with functional-style languages such as Haskell, you might find Dhall to be quite intuitive.
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Berry is a ultra-lightweight dynamically typed embedded scripting language
I've been thinking along these lines but more 'strongly validated' than statically typed in the sense that you'd be better off being able to load the entire config and then produce a list of problems (and should be able to offer good editor support if done correctly).
Though https://dhall-lang.org/ demonstrates that you can statically type quite a lot of configuration to great advantage, which appears to be programmatically embeddable in multiple languages per https://docs.dhall-lang.org/howtos/How-to-integrate-Dhall.ht...
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What Is the Point of Decidability
> Where practical is in the sense of an engineer (or in their terms, a CS practitioner),
Configuration processing. E.g. I'd like my yamls to be decidable, though I'd settle for guaranteed to halt[1].
[1] https://dhall-lang.org/
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What Is Wrong with TOML?
Maybe you'd like jsonnet: https://jsonnet.org/
I find it particularly useful for configurations that often have repeated boilerplate, like ansible playbooks or deploying a bunch of "similar-but" services to kubernetes (with https://tanka.dev).
Dhall is also quite interesting, with some tradeoffs: https://dhall-lang.org/
A few years ago I did a small comparison by re-implementing one of my simpler ansible playbooks: https://github.com/retzkek/ansible-dhall-jsonnet
- Show HN: FlakeHub – Discover and publish Nix flakes
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Home Blog Better configuration languages – A talk about Dhall [video]
And to checkout Dhall: https://dhall-lang.org/
What are some alternatives?
yaml-companion.nvim - Get, set and autodetect YAML schemas in your buffers.
cue - CUE has moved to https://github.com/cue-lang/cue
vscode-yaml - YAML support for VS Code with built-in kubernetes syntax support
jsonnet - Jsonnet - The data templating language
emacs-ansible
cue - The home of the CUE language! Validate and define text-based and dynamic configuration
lsp-mode - Emacs client/library for the Language Server Protocol
terraform - Terraform enables you to safely and predictably create, change, and improve infrastructure. It is a source-available tool that codifies APIs into declarative configuration files that can be shared amongst team members, treated as code, edited, reviewed, and versioned.
markdown-mode - Emacs Markdown Mode
jsonlogic - Go Lang implementation of JsonLogic
rustshop - Rust Shop is a fake cloud-based software company that you can fork.
nix-gui - Use NixOS Without Coding