starlark-rust
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starlark-rust | cue | |
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9 | 28 | |
603 | 3,181 | |
6.8% | - | |
9.8 | 9.1 | |
7 days ago | over 2 years ago | |
Rust | Go | |
Apache License 2.0 | Apache License 2.0 |
Stars - the number of stars that a project has on GitHub. Growth - month over month growth in stars.
Activity is a relative number indicating how actively a project is being developed. Recent commits have higher weight than older ones.
For example, an activity of 9.0 indicates that a project is amongst the top 10% of the most actively developed projects that we are tracking.
starlark-rust
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What config format do you prefer?
I haven't seen anyone mention starlark yet. It's something I want to play with as a config language.
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loxcraft: a compiler, language server, and online playground for the Lox programming language
Aside from these, if you want some inspiration for a production-grade language built in Rust, you might want to go through the source code of Starlark and Gluon.
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Launch HN: Moonrepo (YC W23) – Open-source build system
There is also a Rust implementation of Starlark as a starting point https://github.com/facebookexperimental/starlark-rust
To add to everyone else, please don't use YAML. Starlark is great _precisely_ because it is a readable, well known (nearly Python) language that is limited at the same time (no unbounded for loops, no way to do non-deterministic things like get the current time or `random()`).
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Benchmarking Starlark against other embedded scripting languages
This is a follow-up to Benchmarking mlua/rlua/rhai - Rust embedded scripting languages from 4mo ago; I just added the new Starlark implementation from Meta to the benchmark posted by @aleksru.
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The Perfect Configuration Format? Try TypeScript
The Rust implementation has it as an experimental extension (https://github.com/facebookexperimental/starlark-rust/blob/m...)
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Making an interpreter for variable length byte-code, any way to use enums for this and not just a big u8?
u/ndmitchell has been working on a Starlark interpreter. He wrote up a blog post with some thoughts about different interpreter styles. He found that in his case using fixed sized instructions was about the same as byte-encoded ones, but compiling the AST to closures was also about the same performance as well, and doesn't need an AST->bytecode compiler.
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Can i use rust to write my compiler??
As mentioned in other comments, type system features like algebraic data types (that Rust has) are really helpful. If you want a small-but-real example of a compiler in Rust (with an optimizer etc) then the starlark-rust compiler is good.
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Zellij – A Terminal Workspace and Multiplexer Written in Rust
If your Rust program needs a more complicated configuration (conditionals, access to APIs and so on), also look at Facebook's Starlark parser and tooling[1]. Starlark is a subset of Python used by Bazel, Buck and a few other projects.
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New version of Rust Starlark, an implementation of a deterministic Python-like language
The Facebook post gives a nice overview. It also links out to the home page for the project at https://github.com/facebookexperimental/starlark-rust/, which has an introduction and links to what Starlark is, the crates.io link, the docs.rs link etc.
cue
- The Perfect Configuration Format? Try TypeScript
- YAML: It's Time to Move On
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Ask HN: What you up to? (Who doesn't want to be hired?)
I'm continuing to work on https://concise-encoding.org which is a new security-conscious ad-hoc encoding format to replace JSON/XML and friends. I've been at it for 3 years so far and am close to a release.
In a nutshell:
- Edit in text, transmit in binary. One can be seamlessly converted to the other, but binary is far more efficient for processing, storage and transmission, while text is better for humans to read and edit (which happens far less often than the other things).
- Secure by design: Everything is tightly specced and accounted for so that there aren't differences between implementations that can be exploited to compromise your system. https://github.com/kstenerud/concise-encoding/blob/master/ce...
- Real type support because coercing everything into strings sucks (and is another security risk and source of incompatibilities).
XML had a good run but was replaced by JSON which was a big improvement. JSON also had a good run but it's time for it to retire now that the landscape has changed even further: Security and efficiency are the desires of today, and JSON provides neither.
I've got the spec nailed down and can finally see the light at the end of the tunnel for the reference implementation in golang. I still need to come up with a system for schemas, but I'm hoping that https://cuelang.org will fit the bill.
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No YAML
Has anyone taken a look at Cue who can share any experiences?
It's mentioned on the site as an alternative to Yaml. Recently watched (~half of) this intro to it: https://youtu.be/fR_yApIf6jU
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Cue: A new language for data validation
the most interesting summary explanation of cue lang and its differences is from a bug filing - https://github.com/cuelang/cue/issues/33
>CUE is a bit different from the languages used in linguistics and more tailored to the general configuration issue as we've seen it at Google. But under the hood it adheres strictly to the concepts and principles of these approaches and we have been careful not to make the same mistakes made in BCL (which then were copied in all its offshoots). It also means that CUE can benefit from 30 years of research on this topic. For instance, under the hood, CUE uses a first-order unification algorithm, allowing us to build template extractors based on anti-unification (see issue #7 and #15), something that is not very meaningful or even possible with languages like BCL and Jsonnet.
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CMake proposal: Unified way of describing dependencies of a project
I agree with you. Personally, I think Cue is much better than either YAML, TOML or JSON because it adds the concept of types to the idea of describing configuration.
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Cloud Infrastructure as SQL
true, but the tooling and workflow remains the same.
Not sure of any tool that could abstract the details sufficiently to be widely adopted. There is just too much nuance in cloud config.
I'm exploring using CUE (https://cuelang.org) to define TF resources, exporting as JSON for TF. So far it's much nicer
- Ask HN: What open source projects are you working on and why?
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Tgen: A template tool a la Helm or Consul Templates
I've been using https://cuelang.org for any configuration / yaml like generation. This link has a GH search with two discussions that talk about Rego: https://github.com/cue-lang/cue/search?q=rego&type=discussio...
I wrote https://github.com/hofstadter-io/hof to use this concept "at scale", i.e. inputting & outputting multiple files & dirs. The main idea was to generate common code across the stack from a single-source-of-truth. Today it inputs CUE only, which has all the things needed to validate the incoming data and also contains the templates, so `hof gen` takes the same args as `cue export`. It uses diff3 so that you can regenerate the output after modifying the input or the generated content, which is something I needed so that when I fill in the generated API handler func, and then change the design a bit, that I can keep the manual work.
What are some alternatives?
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.
dhall-lang - Maintainable configuration files
jsonnet - Jsonnet - The data templating language
Pulumi - Pulumi - Infrastructure as Code in any programming language. Build infrastructure intuitively on any cloud using familiar languages 🚀
ytt - YAML templating tool that works on YAML structure instead of text
cue - The home of the CUE language! Validate and define text-based and dynamic configuration
yamllint - A linter for YAML files.
yaml - YAML support for the Go language.
.tmux - 🇫🇷 Oh my tmux! My self-contained, pretty & versatile tmux configuration made with ❤️
starlark-go - Starlark in Go: the Starlark configuration language, implemented in Go
yaml-rust - A pure rust YAML implementation.
terraform-lsp - Language Server Protocol for Terraform