warg
go-flags
warg | go-flags | |
---|---|---|
7 | 9 | |
13 | 2,509 | |
- | - | |
7.3 | 0.0 | |
9 days ago | 20 days ago | |
Go | Go | |
MIT License | BSD 3-clause "New" or "Revised" 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.
warg
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An Efficient Struct Configuration Pattern For Golang
Funcopts aren't always appropriate, but boy do they make things more readable sometimes. I use them pervasively in warg to allow declarative nested CLI commands
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Which packages do you recommend for building cli tools?
I wrote my own! https://github.com/bbkane/warg/
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Major standard library changes in Go 1.20
Very useful! I'll be playing with the error tree additions and studying the HTTP interface extension to see if I can replicate the pattern for https://github.com/bbkane/warg values. Id like to be able to have value-specific output for different types of --help , even ones not in warg
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Have you used generics?
I'm using to allow for custom flag types in my CLI parsing library- a lot less duplicate code
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Go: Functional Options Are Slow
One thing that I find nicer with functional options is building tree-like data structures.
My command line parsing library uses them to declaratively build CLI apps with arbitrarily nested subcommands.
Some examples at https://github.com/bbkane/warg/tree/master/examples
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How are YOU using generics so far?
I'm writing a CLI parsing library, and generics have let me consolidate most of the flag value functionality for different types. So the flags for dbz --level 9000 --type superSaiyan share most of the same code even though one is an int and one is a string. So much fewer copy-paste-modify lines of code now!
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Unix command line conventions over time
This is largely what the Azure CLI does. It simplifies even further by eliminating the no-value option. Instead, you pass "true" or "false" as the value ( --example true ). It's a little more verbose but very easy to parse/write/generate. I like this convention so much I stole it for my homemade Golang CLI parsing library https://github.com/bbkane/warg/ .
go-flags
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Which packages do you recommend for building cli tools?
https://github.com/jessevdk/go-flags provides a pretty neat way to specify flags and handle commands. Not so much extensible as cobra, but good enough for small cli tools
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Show HN: New set of Go libraries for CLI Development
flags aims to merge the concepts from https://github.com/jessevdk/go-flags, and https://github.com/octago/sflags, both relying on struct tags to define CLI command specs. The flags library uses these underlying concepts to produce complete `cobra.Command` trees, and brings many comfort-of-life improvements for the generated applications/commands.
Console (https://github.com/reeflective/console)
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Libraries for CLI and console applications
Flags (https://github.com/reeflective/flags) flags aims to merge the concepts from https://github.com/jessevdk/go-flags, and https://github.com/octago/sflags, both relying on struct tags to define CLI command specs. The flags library uses these underlying concepts to produce complete `cobra.Command` trees, and brings many comfort-of-life improvements for the generated applications/commands.
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Golang equivalent of Python’s click (CLT framework)
go-flags
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Eclipse: python-fire inspired library to simplify creating CLIs in Go, on top of Cobra
Yeah, I just didn't need the command-subcommand scheme. I used the go-flags test file for examples: https://github.com/jessevdk/go-flags/blob/master/example_test.go
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Golang - Writing CLI App in Golang with Cobra
There are alternatives available for Cobra as well i.e. mitchellh/cli, go-flags, urfave/cli etc.
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What are some good open source project to read when learning Go?
https://github.com/jessevdk/go-flags - struct based flag parsing
What are some alternatives?
graph - A library for creating generic graph data structures and modifying, analyzing, and visualizing them.
cobra - A Commander for modern Go CLI interactions
cli-guidelines - A guide to help you write better command-line programs, taking traditional UNIX principles and updating them for the modern day.
kingpin - CONTRIBUTIONS ONLY: A Go (golang) command line and flag parser
workgroup - Structured concurrency manager for Go
urfave/cli - A simple, fast, and fun package for building command line apps in Go
golang-generics-dao-example - Example using Generics with DAO
kong - Kong is a command-line parser for Go
scan - Scan provides the ability to to scan sql rows directly to any defined structure.
pflag - Drop-in replacement for Go's flag package, implementing POSIX/GNU-style --flags.
RCIG_Coordination_Repo - A Coordination repo for all things Rust Cryptography oriented
mitchellh/cli - A Go library for implementing command-line interfaces.