/
util.go
45 lines (35 loc) · 951 Bytes
/
util.go
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package shutter
import (
"github.com/aws/aws-sdk-go/service/ec2"
"github.com/mattn/go-shellwords"
"os"
"os/exec"
"strings"
)
var parser = shellwords.NewParser()
func Render(commands string, instance *ec2.Instance) string {
replaced := commands
if instance.InstanceId != nil {
replaced = strings.ReplaceAll(replaced, "${INSTANCE_ID}", *instance.InstanceId)
}
if instance.PublicIpAddress != nil {
replaced = strings.ReplaceAll(replaced, "${PUBLIC_IP_ADDRESS}", *instance.PublicIpAddress)
}
if instance.PrivateIpAddress != nil {
replaced = strings.ReplaceAll(replaced, "${PRIVATE_IP_ADDRESS}", *instance.PrivateIpAddress)
}
return replaced
}
func DoCommand(commands string) (*os.ProcessState, error) {
cmds, err := parser.Parse(commands)
if err != nil {
return nil, err
}
cmd := exec.Command(cmds[0], cmds[1:]...)
err = cmd.Start()
if err != nil {
return nil, err
}
_ = cmd.Wait()
return cmd.ProcessState, nil
}