terraform/helper/variables/flag.go

39 lines
779 B
Go

package variables
import (
"fmt"
"strings"
)
// Flag a flag.Value implementation for parsing user variables
// from the command-line in the format of '-var key=value', where value is
// a type intended for use as a Terraform variable.
type Flag map[string]interface{}
func (v *Flag) String() string {
return ""
}
func (v *Flag) Set(raw string) error {
idx := strings.Index(raw, "=")
if idx == -1 {
return fmt.Errorf("No '=' value in arg: %s", raw)
}
key, input := raw[0:idx], raw[idx+1:]
// Trim the whitespace on the key
key = strings.TrimSpace(key)
if key == "" {
return fmt.Errorf("No key to left '=' in arg: %s", raw)
}
value, err := ParseInput(input)
if err != nil {
return err
}
*v = Merge(*v, map[string]interface{}{key: value})
return nil
}