Dhall Configuration Language Reviews and details

Social recommendations and mentions

• Power of Small Optimizations

  Agda doesn't need that restriction, as far as I know. And neither does Dhall. See https://dhall-lang.org/ Neither language is Turing complete. - Source: Hacker News / 3 months ago

• 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/528b00cd5c3a22e3d8f057bb1a75ea61 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... - Source: Hacker News / 3 months ago

• 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. - Source: Hacker News / 3 months ago

• Apple releases Pkl – onfiguration as code language

  Well, Dhall provides something between JSON and a Turing complete language that can make a lot of configuration much quicker to write, if you can hack the functional syntax. http://dhall-lang.org/. - Source: Hacker News / 3 months ago

• Why the fuck are we templating YAML? (2019)

  What are your thoughts on: - https://dhall-lang.org/. - Source: Hacker News / 3 months ago

• Why the fuck are we templating YAML? (2019)

  Throwing in a plug for https://dhall-lang.org/ > Dhall is a programmable configuration language that you can think of as: JSON + functions + types + imports. - Source: Hacker News / 3 months ago

• Why the fuck are we templating YAML? (2019)

  I agree, I think a language like dhall (https://dhall-lang.org/) strikes a good balance. - Source: Hacker News / 3 months ago

• Why the fuck are we templating YAML? (2019)

  Hey now. Your average Haskeller would simply recommend you replace YAML with Dhall. https://dhall-lang.org/. - Source: Hacker News / 3 months ago

• Why the fuck are we templating YAML? (2019)

  Indeed why? However the conclusion I have is not to use JSON but to use a type safe configuration language that can express my intent much better making illegal states impossible. One example of such lang is Dhall. https://dhall-lang.org/. - Source: Hacker News / 3 months ago

• 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... - Source: Hacker News / 3 months ago

• NixOS has one fatal flaw

  This is how I think of Dhall as well, which I highly recommend. https://dhall-lang.org/. - Source: Hacker News / 4 months ago

• 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... - Source: Hacker News / 7 months ago

• 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/. - Source: Hacker News / 7 months ago

• That's a Lot of YAML

  I really like what dhall-lang (https://dhall-lang.org) is doing in that sense. It manages to strike a nice balance between power and simplicity from the start. - Source: Hacker News / 7 months ago

• That's a Lot of YAML

  This reminds me of the Dhall configuration language: https://dhall-lang.org/. - Source: Hacker News / 7 months ago

• 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... - Source: Hacker News / 8 months ago

• What Is Wrong with TOML?

  I agree, I quite like https://dhall-lang.org/ for that reason. It strikes a good balance between features and being a config language. - Source: Hacker News / 8 months ago

• Node.js 20.6.0 will include built-in support for .env files

  This is what Dhall is designed to solve. If I was on a big team I’d be looking closely at it https://dhall-lang.org/. - Source: Hacker News / 8 months ago

• Domain Modelling in the Cloud & AWS CDK

  I think 3 is the biggest take away for me. I spent way too much time trying to utilize Dhall to create a domain specific language for each project, and translate that to CloudFormation. Instead of thinking in Lambdas and Step Functions, you would use the language of the problem we’re trying to solve; the business of getting a Client’s(1) Accounts(2) into a bunch of PDF Financial Statements(3) that we could then... - Source: dev.to / 9 months ago

• Rethinking Infrastructure as Code from Scratch

  Well, it depends on the language. Some are quite good at restricting programs so that it is not possible to execute arbitrary code. Take a look at https://propellor.branchable.com to see how Haskell might be used. Idris might be a good candidate as well. https://dhall-lang.org is quite interesting for these purposes as well (although it is not general purpose). - Source: Hacker News / 9 months ago

• Keeping Open Source Open: Rocky Linux

  Not for Nix, it depends entirely on functional concepts. There’s also the Dhall config language, which could do what Nix does. Not sure if that’s any better for you but maybe worth checking out. Source: 10 months ago