anyhow
Flexible concrete Error type built on std::error::Error (by dtolnay)
structopt
Parse command line arguments by defining a struct. (by TeXitoi)
anyhow | structopt | |
---|---|---|
13 | 18 | |
5,059 | 2,684 | |
- | - | |
8.5 | 2.7 | |
12 days ago | 4 months ago | |
Rust | Rust | |
Apache License 2.0 | GNU General Public License v3.0 or later |
The number of mentions indicates the total number of mentions that we've tracked plus the number of user suggested alternatives.
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.
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.
anyhow
Posts with mentions or reviews of anyhow.
We have used some of these posts to build our list of alternatives
and similar projects. The last one was on 2023-02-17.
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I love building a startup in Rust. I wouldn't pick it again.
Depending on your use case, thiserror and/or anyhow.
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Why Rust?
There is ? as well as the anyhow(https://github.com/dtolnay/anyhow) crate that deals with long nested result chains.
- Anyhow/src/ensure.rs: Rust macro with 675 lines
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Is this a good way of handling errors in Rust?
There are crates out there that help you reduce this boiler plate. thiserror is good for creating custom errors and color-eyre or anyhow are good for dynamic errors.
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Looking for general advice on toy project
Give anyhow a look.
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Oops, I Did It Again...I Made A Rust Web API And It Was Not That Difficult
I've brought anyhow::Result into scope, making error handling super easy to use. We don't need to specify all our Error types. It can automatically convert any errors that implement std::error::Error, which should be all of them. If an error propagates all the way up to main(), we'll get all the info it's captured printed to stdout.
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Idiomatic way to return/break if Err/None
Alternatively, if you've got a lot of error types and you're outside a library (so directly in a binary where you don't plan to reuse code elsewhere) you can use anyhow. This gives you an error type you can basically propagate any other error through. On top of that you can attach context information at every return. It's basically a more complicated Result>.
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Using workspace for modularization is kind of painful?
One approach is to define a separate error type for each crate and then use anyhow, eyre or Box to wrap the error, whever a function can return errors originating in several different crates.
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Can we please stop downvoting people who dislike Rust?
Have you tried anyhow and thiserror for making it as simple as .context("Message") or ? to type-convert and propagate errors up the call stack?
structopt
Posts with mentions or reviews of structopt.
We have used some of these posts to build our list of alternatives
and similar projects. The last one was on 2023-07-03.
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What's the coolest Rust project you've seen that made you go, 'Wow, I didn't know Rust could do that!'?
Hope you are aware that structopt is in maintenance mode and is merged into clap as of v3.
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Task manager for Linux using rust
As I understood you need to implement a command line argument parser for that you can use clap https://github.com/clap-rs/clap or structopt https://github.com/TeXitoi/structopt.
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clap with Ed Page :: Rustacean Station
I feel like discovering moves like this is a weakness in the ecosystem today. You can check out some of our discussion on raising visibility
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clap 3.1: A step towards 4.0
Something I've been giving thought to is how to help structopt users discover that clap3 is their upgrade path. We've put notices in the structopt repo but cargo upgrade and docs.rs won't say anything. See https://github.com/TeXitoi/structopt/issues/525 for more ideas we're considering.
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ANN: clap 3.0.0-rc.0!
For myself, I have found serde.rs really useful for undertanding their derives while I've always been frustrated with finding anything in structopt's documentation, so I modeled it more off of serde. This ended up both being in structure and not being in docs.rs. I think it really was the structure that was the frustration point for me but there was interest elsewhere in moving stuff out of docs.rs.
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fncmd: Command line interface as a function.
I think it would be nice to have a comparison to clap-derive and/or structopt in the README, as that is what I expect most users would compare this to. The subcommand handling looks especially cumbersome compared to deriving on structs and enums.
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Linkerd 2.11 now includes a Kubernetes controller written in Rust
However, the one place I'm a little curious to rewrite things is the CLI... every time we have to deal with cobra I long for Rust's structopt.
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vaultssh: A small CLI wrapper for authenticating with SSH keys from Hashicorp Vault
Have you tried https://github.com/TeXitoi/structopt ?
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SwayWS - a sway workspace tool which allows easy moving of workspaces to and from outputs
It is written in Rust using the structopt and swayipc crates. It is published on crates.io. The repository is hosted on GitLab. The repository is mirrored on GitHub.
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Most Versatile Language for CLI Apps?
I use structopt, which itself uses clap.
What are some alternatives?
When comparing anyhow and structopt you can also consider the following projects:
eyre - A trait object based error handling type for easy idiomatic error handling and reporting in Rust applications
clap-rs - A full featured, fast Command Line Argument Parser for Rust
color-eyre - Custom hooks for colorful human oriented error reports via panics and the eyre crate
docopt.rs - Docopt for Rust (command line argument parser).
thiserror - derive(Error) for struct and enum error types
easy_flag - Simple command line flag parser for rust.
rust - Rust language bindings for TensorFlow
rust-starter - Rust Starter Project
cargo-edit - A utility for managing cargo dependencies from the command line.
enum-map
hyper - An HTTP library for Rust
cobra - A Commander for modern Go CLI interactions