packer-cn/builder/googlecompute/account.go

53 lines
1.2 KiB
Go

package googlecompute
import (
"encoding/json"
"fmt"
"io/ioutil"
"os"
"strings"
)
// accountFile represents the structure of the account file JSON file.
type accountFile struct {
PrivateKeyId string `json:"private_key_id"`
PrivateKey string `json:"private_key"`
ClientEmail string `json:"client_email"`
ClientId string `json:"client_id"`
}
func parseJSON(result interface{}, text string) error {
r := strings.NewReader(text)
dec := json.NewDecoder(r)
return dec.Decode(result)
}
func processAccountFile(account_file *accountFile, text string) error {
// Assume text is a JSON string
if err := parseJSON(account_file, text); err != nil {
// If text was not JSON, assume it is a file path instead
if _, err := os.Stat(text); os.IsNotExist(err) {
return fmt.Errorf(
"account_file path does not exist: %s",
text)
}
b, err := ioutil.ReadFile(text)
if err != nil {
return fmt.Errorf(
"Error reading account_file from path '%s': %s",
text, err)
}
contents := string(b)
if err := parseJSON(account_file, contents); err != nil {
return fmt.Errorf(
"Error parsing account file '%s': %s",
contents, err)
}
}
return nil
}