consul/command/version/version.go

104 lines
2.0 KiB
Go

package version
import (
"flag"
"fmt"
"strings"
"time"
"github.com/hashicorp/consul/agent/consul"
"github.com/hashicorp/consul/command/flags"
"github.com/hashicorp/consul/version"
"github.com/mitchellh/cli"
)
func New(ui cli.Ui) *cmd {
c := &cmd{UI: ui}
c.init()
return c
}
type cmd struct {
UI cli.Ui
flags *flag.FlagSet
format string
help string
}
func (c *cmd) init() {
c.flags = flag.NewFlagSet("", flag.ContinueOnError)
c.flags.StringVar(
&c.format,
"format",
PrettyFormat,
fmt.Sprintf("Output format {%s}", strings.Join(GetSupportedFormats(), "|")))
c.help = flags.Usage(help, c.flags)
}
type RPCVersionInfo struct {
Default int
Min int
Max int
}
type VersionInfo struct {
HumanVersion string `json:"-"`
Version string
Revision string
Prerelease string
BuildDate time.Time
RPC RPCVersionInfo
}
func (c *cmd) Run(args []string) int {
if err := c.flags.Parse(args); err != nil {
return 1
}
formatter, err := NewFormatter(c.format)
if err != nil {
c.UI.Error(err.Error())
return 1
}
// We parse this here because consul version is used in our 'smoke' tests and we want to fail early
buildDate, err := time.Parse(time.RFC3339, version.BuildDate)
if err != nil {
c.UI.Error(err.Error())
return 1
}
out, err := formatter.Format(&VersionInfo{
HumanVersion: version.GetHumanVersion(),
Version: version.Version,
Revision: version.GitCommit,
Prerelease: version.VersionPrerelease,
BuildDate: buildDate,
RPC: RPCVersionInfo{
Default: consul.DefaultRPCProtocol,
Min: int(consul.ProtocolVersionMin),
Max: consul.ProtocolVersionMax,
},
})
if err != nil {
c.UI.Error(err.Error())
return 1
}
c.UI.Output(out)
return 0
}
func (c *cmd) Synopsis() string {
return "Prints the Consul version"
}
func (c *cmd) Help() string {
return flags.Usage(c.help, nil)
}
const synopsis = "Output Consul version information"
const help = `
Usage: consul version [options]
`