clap-rs
argparse-benchmarks-rs
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clap-rs | argparse-benchmarks-rs | |
---|---|---|
154 | 17 | |
13,288 | 35 | |
2.0% | - | |
9.6 | 6.5 | |
about 18 hours ago | over 1 year ago | |
Rust | Python | |
Apache License 2.0 | MIT License |
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.
clap-rs
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Build Your Own curl - Rust
We will be using the library for Clap - A simple-to-use, efficient, and full-featured library for parsing command line arguments and subcommands.
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CLI Contexts
I recently came across this question (and associated answer) on the clap repository. The answer given is a good one. But I wanted to expand with my own findings and practices, which spurred the motivation for this post.
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Getting Started with CLI tools in Rust using Clap
We can also use tuple-like struct syntax and named-field struct syntax for enum variants within our enum; this is because unlike in other OOP languages, Rust enums are actually sum types. You can read more about how powerful Rust enums are in another article we wrote here. You can have optional arguments by simply wrapping the types in Option, but if you want to add a flag to a command you can use bool, since clap recognises that flags are either there or not there. Let's have a look at what this might look like:
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Flow Updater JSON Creator
I began by developing a wrapper for the CurseForge API, which turned out to be a lengthy and challenging process but constituted the bulk of the work. Next, I coded the CLI, which was relatively straightforward. Instead of using the clap crate, a Rust tool for generating CLIs, I opted for the following line of code:
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netcrab: a networking tool
By this time I had already gotten tired of parsing arguments by myself and had looked for something to help with that. I found a really dang good argument parsing library called clap. What makes it so cool is it's largely declarative for common uses. You simply mark up a struct with attributes, and the parser automatically generates the usage and all the argument parsing code.
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Grimoire - A recipe management application.
How CLI arguments are handled (using clap).
- Rust 1.72.0
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I made an alternative --help renderer for clap based applications
Is this just referring to wrapping based on the terminal width? That is supported with the wrap_help feature though I have been considering making it a default feature.
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Looking for advice around project direction using artix-web
CLI, use Clap. If you want to get fancy, use Tui.
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Build a HTTP server with Rust and tokio - Part 1: serving static files
As our CLI is getting more complex, we'll use the clap crate to parse the command line arguments.
argparse-benchmarks-rs
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Yet another command line argument parser: bpaf 0.5.2
You can check out the argparse-benchmarks-rs though that only gives a high level summary.
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Gex: Git CLI inspired by Emac's Magit built in Rust
So besides the git2 conversation, I'd recommend using an argument parser even if its for something basic like lexopt just for help/version, at least you'd error for unrecognized arguments and can more easily expand it in the future.
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New alternative for clap (declarative, basic and simple)
Unclear whether it has a solid advantage over other things listed at rust-cli/argparse-benchmarks-rs or whether it's just an "I didn't research what already existed" project.
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GitHub - epage/parse-benchmarks-rs
I'm tempted to collect all of these benchmark repos into a github org to make them easier to find. So far I know of parser, md, argparse, and template languages.
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How do i learn about new crates?
Not strictly an answer to your question, but https://github.com/rust-cli/argparse-benchmarks-rs provides a good survey of option parsing crates in Rust.
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Best cobra alternative for rust.
As others have mentioned clap is one of the more popular, featureful CLI parsers though it does come at a compile time and binary size cost. We are working on improving that. See argparse-benchmarks for by-the-numbers comparison for the different parsers (ie only stats and no full feature lists). Clap is used by ripgrep, cargo, and many other tools
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Announcing clap_lex 0.1!
Compared to lexopt, which inspired this effort, clap_lex makes some different trade offs for flexibility and ergonomics which allows it to handle every case clap needs. There is room for more ergonomic improvements as the MVP was written for clap's needs. argparse-benchmarks-rs has been updated and clap_lex is roughly in line with lexopt for build-times and binary size.
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Yet another command line argument parser: bpaf 0.4.0
See https://github.com/rust-cli/argparse-benchmarks-rs/blob/main/examples/bpaf-app/app.rs
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Immediately off the top of your head what is the best Rust CLI library.
You can use this link: https://github.com/rust-cli/argparse-benchmarks-rs
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Yet another command line argument parser: bpaf
btw there are the argparse benchmarks which can be interesting points of comparison (though I haven't decided what is the criteria for being added to it yet).
What are some alternatives?
structopt - Parse command line arguments by defining a struct.
sherlock - 🔎 Hunt down social media accounts by username across social networks
argh - Rust derive-based argument parsing optimized for code size
ht - Friendly and fast tool for sending HTTP requests
docopt.rs - Docopt for Rust (command line argument parser).
cli-guidelines - A guide to help you write better command-line programs, taking traditional UNIX principles and updating them for the modern day.
easy_flag - Simple command line flag parser for rust.
serde - Serialization framework for Rust
rust - Empowering everyone to build reliable and efficient software.
httpie - 🥧 HTTPie CLI — modern, user-friendly command-line HTTP client for the API era. JSON support, colors, sessions, downloads, plugins & more.