onion vs go-arg

onion

Layer based configuration for golang (by goraz)

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go-arg

Struct-based argument parsing in Go (by alexflint)

Configuration Argument parsing Golang

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onion		go-arg
	Project
-	Mentions	6
115	Stars	1,861
0.0%	Growth	-
0.0	Activity	4.4
about 1 year ago	Latest Commit	25 days ago
Go	Language	Go
MIT License	License	BSD 2-clause "Simplified" License

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.

onion

Posts with mentions or reviews of onion. We have used some of these posts to build our list of alternatives and similar projects.

We haven't tracked posts mentioning onion yet.
Tracking mentions began in Dec 2020.

go-arg

Posts with mentions or reviews of go-arg. We have used some of these posts to build our list of alternatives and similar projects. The last one was on 2023-02-02.

Go-Arg: Struct-based argument parsing in Go
1 project | news.ycombinator.com | 27 Dec 2023
Build a GitHub Issues Reporter for failing Kubernetes Apps with Botkube Plugins
7 projects | dev.to | 2 Feb 2023

Under the hood, the pluginx.ParseCommand method uses go-arg.
Libraries for CLI and console applications
6 projects | /r/golang | 7 Jan 2023

I’ve used multiple libraries over the last two years but less is more and go-arg feels like something that would be in the stdlib: https://github.com/alexflint/go-arg
Libraries you use most of your projects?
30 projects | /r/golang | 2 Nov 2022
Best practice for configuring secrets
6 projects | /r/golang | 6 Apr 2022

I use this: https://github.com/alexflint/go-arg and setting defaults for my local environment. So no need to keep a .env file.
Recommended framework/library for creating cli apps in go?
9 projects | /r/golang | 27 Jan 2022

I personally swear by the go-arg package, as i prefer its library-not-framework approach.

What are some alternatives?

When comparing onion and go-arg you can also consider the following projects:

go-toml - Go library for the TOML file format

argparse - Argparse for golang. Just because `flag` sucks

comment - Golang package for use comments in JSON config files

flag - Flag is a simple but powerful command line option parsing library for Go support infinite level subcommand

gcfg - read INI-style configuration files into Go structs; supports user-defined types and subsections

cobra - A Commander for modern Go CLI interactions

swap - Instantiate/configure structs recursively, based on build environment. (YAML, TOML, JSON and env).

go-flags - go command line option parser

hjson - Hjson for Go

viper - Go configuration with fangs

goConfig - goconfig uses a struct as input and populates the fields of this struct with parameters from command line, environment variables and configuration file.

docopt.go - A command-line arguments parser that will make you smile.