viper VS urfave/cli

Once environment variables are setup we need load them into our project. For this this i will use viper

The code uses Viper to load configuration files in the application.

github.com/spf13/viper

Instead of directly accessing environment variables with os.Getenv(), integrating a configuration handler like viper might make it maintainable.

I guess most people are using https://github.com/spf13/viper but I don't know if I should read everything from

Use Viper for config file or environmental variable configuration -- it's going to save you a whole lot of time.

Cobra and Viper.

I've mostly been using https://github.com/spf13/viper of late for my go projects. It supports the standard config formats, (json, yaml, toml etc) and lets you override any value with a ENV value.

Can you use a framework like urfavecli https://github.com/urfave/cli? This will auto-update every time it detects a new version from your CLI's GitHub repository

I use https://github.com/urfave/cli for local development over cli parameter inside docker over envs

....\Softwares\go\src\prysm\cmd\prysmctl\checkpointsync\cmd.go:3:8: cannot find package "github.com/urfave/cli/v2" in any of:

urfave/cli - A simple, fast, and fun package for building command line apps in Go;

and probably something else will be added in the future. The final kind of launch command would like to see such djob [options] - command. Command is the command (with arguments to run). -- should separate the arguments of the utility from the arguments of the program to run. There are several excellent solutions for working with command-line arguments, such as spf13/cobra or urfave/cli. But they’re good for building an interface out of a lot of commands, and for one (as in my example) they’re redundant. So I used the flag library. I have defined the following structure with arguments:

There are alternatives available for Cobra as well i.e. mitchellh/cli, go-flags, urfave/cli etc.

https://github.com/urfave/cli - A Golang package used to structure the CLI.