cobra
pflag
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cobra | pflag | |
---|---|---|
128 | 13 | |
35,583 | 2,293 | |
- | - | |
7.8 | 0.0 | |
7 days ago | 17 days ago | |
Go | Go | |
Apache License 2.0 | BSD 3-clause "New" or "Revised" License |
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cobra
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Build your own curl in Golang
In this tutorial, we'll walk through the process of creating a simple command-line tool similar to curl using Go and Cobra, a CLI library for Go.
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Scripts should be written using the project main language
I use https://github.com/spf13/cobra religiously for this kind of thing - it handles all the annoying corner cases of parsing flags, and also has an intuitive notion of subcommands (with basic usage/help text generated) for picking which task you want to run with positional arguments.
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Command Line Interface Guidelines
We recently chose cobra[1] to create a cli application. It comes with so many best practices already packaged like autocompletions, help texts etc. etc.
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What 3rd-party libraries do you use often/all the time?
github.com/spf13/cobra
- O poder do CLI com Golang e Cobra CLI
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Dockerizing Golang CLI Tool - A Step-by-Step Guide
For installing Cobra-CLI you can go to Cobraor run go install github.com/spf13/cobra-cli@latest in the terminal.
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Packaging Go for Arch Linux Tutorial
In my build phase, I compile the source to create a k3sup binary and I also run the binary to generate shell script completions. Give kudos to this functionality which comes from spf13/cobra Go library for CLIs.
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Add License Headers to Your Code Files
NWA is a command-line tool built on cobra. Here's an overview of NWA's commands:
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Auto-Completion and Cocktail mixing with Golang’s Cobra CLI
Cobra is a library for creating powerful modern CLI applications. https://github.com/spf13/cobra
In this post we explain how to implement custom auto-completion ability for a CLI tool written in Go and using Cobra. We start by walking through the creation of a tiny mixologist app using Cobra. The mixologist app is a CLI tool written in Go using the Cobra framework that can make cocktails from a list of ingredients and uses custom auto-completion to improve the user experience. For reference, the code for the CLI application can be found here: https://github.com/rafttio/mixologist
pflag
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issue with pflag flagset
Just the bonus question: did I miss some hints when checking the https://github.com/spf13/pflag readme or the use case of FlagSet is indeed to just be used by cobra CLIs in subcommand only and not directly?
My understanding is that you can use pflag as a drop in replacement of the standard lib's flag (import flag "github.com/spf13/pflag"). So it can be used as a standalone lib I suppose.
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Which packages do you recommend for building cli tools?
I realy enjoyed the patched version from spf13 with "--" support https://github.com/spf13/pflag
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Define custom command-line flag types in Go 1.19
Nice, but Cobra (with pflag underneath) is so, so better.
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-h --help -help help --? -? ????
Not by default on stdlib. There are libraries available though - https://github.com/spf13/pflag
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Coral, a friendly Cobra fork with nearly all its features, but only 4 dependencies
Flag functionality is provided by the pflag library, a fork of the flag standard library which maintains the same interface while adding POSIX compliance.
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The flag package: strange but good?
spf13 has a drop in pflag that does the - short and -- long flags.
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What are your favorite packages to use?
oklog/ulid to generate IDs. coreos/go-oidc for validating JWTs I get from auth. google/go-cmp for comparing structs in tests (unless the project is already using Testify). spf13/pflag because life's too short for Go's flag handling. getkin/kin-openapi for validating reqests/responses against my OpenAPI spec (in tests).
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akamensky/argparse: Argparse for Golang. Just because "flag" sucks!
What are the benefits of this package over the widely used spf13/pflag?
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Go’s highly modular nature makes it particularly good for situations where requirements are changing or evolving.
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What are some alternatives?
urfave/cli - A simple, fast, and fun package for building command line apps in Go
cli - CLI - A package for building command line app with go
kingpin - CONTRIBUTIONS ONLY: A Go (golang) command line and flag parser
kong - Kong is a command-line parser for Go
go-flags - go command line option parser
mitchellh/cli - A Go library for implementing command-line interfaces.
flag - Flag is a simple but powerful command line option parsing library for Go support infinite level subcommand
mow.cli - A versatile library for building CLI applications in Go
argparse - Argparse for golang. Just because `flag` sucks
docopt.go - A command-line arguments parser that will make you smile.
Gin - Gin is a HTTP web framework written in Go (Golang). It features a Martini-like API with much better performance -- up to 40 times faster. If you need smashing performance, get yourself some Gin.
cli - GitHub’s official command line tool