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// Copyright 2012, 2013 Canonical Ltd.
// Licensed under the LGPLv3, see LICENSE file for details.
package cmd
import (
"github.com/juju/gnuflag"
)
// versionCommand is a cmd.Command that prints the current version.
type versionCommand struct {
CommandBase
out Output
version string
versionDetail interface{}
showAll bool
}
func newVersionCommand(version string, versionDetail interface{}) *versionCommand {
return &versionCommand{
version: version,
versionDetail: versionDetail,
}
}
func (v *versionCommand) Info() *Info {
return &Info{
Name: "version",
Purpose: "Print the current version.",
}
}
func (v *versionCommand) SetFlags(f *gnuflag.FlagSet) {
formatters := make(map[string]Formatter, len(DefaultFormatters))
for k, v := range DefaultFormatters {
formatters[k] = v.Formatter
}
v.out.AddFlags(f, "smart", formatters)
f.BoolVar(&v.showAll, "all", false, "Prints all version information")
}
func (v *versionCommand) Run(ctxt *Context) error {
if v.showAll {
return v.out.Write(ctxt, v.versionDetail)
}
return v.out.Write(ctxt, v.version)
}
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