dhall-lang

Maintainable configuration files (by dhall-lang)

Dhall-lang Alternatives

Similar projects and alternatives to dhall-lang

NOTE: The number of mentions on this list indicates mentions on common posts plus user suggested alternatives. Hence, a higher number means a better dhall-lang alternative or higher similarity.

dhall-lang reviews and mentions

Posts with mentions or reviews of dhall-lang. We have used some of these posts to build our list of alternatives and similar projects. The last one was on 2024-02-03.
  • Apple releases Pkl – onfiguration as code language
    14 projects | news.ycombinator.com | 3 Feb 2024
    Fail to see how this is any different than Dhall (https://dhall-lang.org/) other than it produces plists too.
  • Pkl, a Programming Language for Configuration
    12 projects | news.ycombinator.com | 2 Feb 2024
    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 Standardâ„¢ 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)
    27 projects | news.ycombinator.com | 23 Jan 2024
  • Is Htmx Just Another JavaScript Framework?
    9 projects | news.ycombinator.com | 11 Jan 2024
    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/

  • 10 Ways for Kubernetes Declarative Configuration Management
    23 projects | dev.to | 1 Jan 2024
    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.
  • Berry is a ultra-lightweight dynamically typed embedded scripting language
    10 projects | news.ycombinator.com | 7 Oct 2023
    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...

  • What Is the Point of Decidability
    1 project | news.ycombinator.com | 5 Oct 2023
    > 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/

  • What Is Wrong with TOML?
    15 projects | news.ycombinator.com | 13 Sep 2023
    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
    2 projects | news.ycombinator.com | 22 Aug 2023
  • Home Blog Better configuration languages – A talk about Dhall [video]
    1 project | news.ycombinator.com | 17 Aug 2023
    And to checkout Dhall: https://dhall-lang.org/
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