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Card](https://goreportcard.com/badge/github.com/pierrec/cmdflag)](https://goreportcard.com/report/github.com/pierrec/cmdflag)\n\nBuilding on top of the excellent `flag`  package from the standard library, `cmdflag` adds a simple way of specifying nested commands. Its intent is to blend with the usage of `flag` by keeping its idioms and simply augment it with commands.\n\n## Install\n\n```\ngo get github.com/pierrec/cmdflag\n```\n\n## Usage\n\nA `Command` is a set of flags (flag.FlagSet) with a (potentially empty) set of other Commands \n(sometimes referred to as subcommands). To define a subcommand, `Command.Add` an `Application` \ndefining its properties:\n  - Name - the subcommand name\n  - Descr - a short desciption of the subcommand\n  - Args - the list of arguments expected by the subcommand\n  - Help - a long description of the subcommand\n  - Err - what to do in case of error (same as in the flag package)\n  - Init - the function to be run once the subcommand is encountered (lazily initialized)\n  \nNested commands are supported, so a subcommand can also have its own subcommands.\n\n## Example\n\n```\n./chef cook -toppings cheese,mushrooms pizza\n\nc := cmdflag.New(nil)\nc.Add(cmdflag.Application{\n    Name: \"cook\",\n    Init: func(fs *flag.FlagSet) cmdflag.Handler {\n        var toppings string\n        fs.StringVar(\u0026toppings, \"toppings\", \"\", \"coma separated list of toppings\")\n        \n        return func(args ...string) (int, error) {\n            fmt.Printf(\"courses: %v\\n\", args)\n            fmt.Printf(\"toppings: %v\\n\", strings.Split(toppings, \",\"))\n            return len(args), nil\n        }\n    }\n}\n```\n\n## Extra features\n\nTo make life easier, a few common uses of a command line library are provided and can be easily activated: \n  - flags:\n    defining them as a flag activates them\n    - -version - see `VersionBoolFlag`\n    - -fullversion - see `FullVersionBoolFlag`\n    - the standard -h and -help flags are supported to display the usage of the command they apply to\n  - commands:\n    - help - provides a way to display `Application.Help` for a given command\n      (activated by `Command.AddHelp`)\n\n## Contributing\n\nContributions welcome via pull requests. Please provide tests.\n","project_url":"https://awesome.ecosyste.ms/api/v1/projects/github.com%2Fpierrec%2Fcmdflag","html_url":"https://awesome.ecosyste.ms/projects/github.com%2Fpierrec%2Fcmdflag","lists_url":"https://awesome.ecosyste.ms/api/v1/projects/github.com%2Fpierrec%2Fcmdflag/lists"}