unistack-org/cloudinit
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feat(version): Print binary version when given --version flag

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This commit is contained in:
Brian Waldon 2014-03-04 17:01:58 -08:00
parent ce80934897
commit 20df7b6a19
1 changed files with 12 additions and 0 deletions
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12
coreos-cloudinit.go
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@ -1,17 +1,24 @@
package main package main
import ( import (
"fmt"
"flag" "flag"
"io/ioutil" "io/ioutil"
"os"
"log" "log"
"github.com/coreos/coreos-cloudinit/cloudinit" "github.com/coreos/coreos-cloudinit/cloudinit"
) )
const version = "0.1.0+git"
func main() { func main() {
var userdata []byte var userdata []byte
var err error var err error
var printVersion bool
flag.BoolVar(&printVersion, "version", false, "Print the version and exit")
var file string var file string
flag.StringVar(&file, "from-file", "", "Read user-data from file rather than metadata service") flag.StringVar(&file, "from-file", "", "Read user-data from file rather than metadata service")
@ -20,6 +27,11 @@ func main() {
flag.Parse() flag.Parse()
if printVersion == true {
fmt.Printf("coreos-cloudinit version %s\n", version)
os.Exit(0)
}
if file != "" { if file != "" {
log.Printf("Reading user-data from file: %s", file) log.Printf("Reading user-data from file: %s", file)
userdata, err = ioutil.ReadFile(file) userdata, err = ioutil.ReadFile(file)