package command import ( "bytes" "fmt" "github.com/hashicorp/consul/consul" "github.com/mitchellh/cli" ) // VersionCommand is a Command implementation prints the version. type VersionCommand struct { Revision string Version string VersionPrerelease string Ui cli.Ui } func (c *VersionCommand) Help() string { return "" } func (c *VersionCommand) Run(_ []string) int { var versionString bytes.Buffer fmt.Fprintf(&versionString, "Consul %s", c.Version) if c.VersionPrerelease != "" { fmt.Fprintf(&versionString, ".%s", c.VersionPrerelease) if c.Revision != "" { fmt.Fprintf(&versionString, " (%s)", c.Revision) } } c.Ui.Output(versionString.String()) c.Ui.Output(fmt.Sprintf("Consul Protocol: %d (Understands back to: %d)", consul.ProtocolVersionMax, consul.ProtocolVersionMin)) return 0 } func (c *VersionCommand) Synopsis() string { return "Prints the Consul version" }