Allow apps to provide extra information to version command

[jhernandezb]

Summary

Allow apps to provide extra information to version command

[appd] version --long
..
..
wasmvm : v1.0.0-beta.11

Problem Definition

Currently the information comes from this method

cosmos-sdk/version/version.go

Line 66 in 9bed633

func NewInfo() Info {

which contains a predefined struct and there is no way to add extra information.

Build tags don't work for runtime information like CosmWasm VM providing it's version through the dynamic library

CosmWasm/wasmvm#314

Proposal

Add an optional field to the Info struct that can be injected outside as cobra context.

// ExtraInfo contains a set of extra information provided by apps
type ExtraInfo map[string]string

// Info defines the application version information.
type Info struct {
	Name             string     `json:"name" yaml:"name"`
	AppName          string     `json:"server_name" yaml:"server_name"`
	Version          string     `json:"version" yaml:"version"`
	GitCommit        string     `json:"commit" yaml:"commit"`
	BuildTags        string     `json:"build_tags" yaml:"build_tags"`
	GoVersion        string     `json:"go" yaml:"go"`
	BuildDeps        []buildDep `json:"build_deps" yaml:"build_deps"`
	CosmosSdkVersion string     `json:"cosmos_sdk_version" yaml:"cosmos_sdk_version"`
        ExtraInfo        *ExtraInfo `json:"extra_info" yaml:"extra_info"`
} 

// VersionCommand ...
// The context must be set from the root command as PersistentPreRun
RunE: func(cmd *cobra.Command, _ []string) error {
	verInfo := NewInfo()

	if long, _ := cmd.Flags().GetBool(flagLong); !long {
	cmd.Println(verInfo.Version)
	return nil
	}
	extraInfo := extraInfoFromContext(cmd)
	...
},

---

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[alexanderbez]

Yup, I totally support this. Great idea! Is this something you're interested in helping with?

[jhernandezb]

Yup, I totally support this. Great idea! Is this something you're interested in helping with?

Yes, I can make a PR for this