packer-cn/fix/fixer_qemu_disk_size.go

54 lines
1.1 KiB
Go

package fix
import (
"strconv"
"github.com/mitchellh/mapstructure"
)
// FixerQEMUDiskSize updates disk_size from a string to int for QEMU builders
type FixerQEMUDiskSize struct{}
func (FixerQEMUDiskSize) Fix(input map[string]interface{}) (map[string]interface{}, error) {
type template struct {
Builders []map[string]interface{}
}
// Decode the input into our structure, if we can
var tpl template
if err := mapstructure.Decode(input, &tpl); err != nil {
return nil, err
}
for _, builder := range tpl.Builders {
builderTypeRaw, ok := builder["type"]
if !ok {
continue
}
builderType, ok := builderTypeRaw.(string)
if !ok {
continue
}
if builderType != "qemu" {
continue
}
switch diskSize := builder["disk_size"].(type) {
case float64:
builder["disk_size"] = strconv.Itoa(int(diskSize)) + "M"
case int:
builder["disk_size"] = strconv.Itoa(diskSize) + "M"
}
}
input["builders"] = tpl.Builders
return input, nil
}
func (FixerQEMUDiskSize) Synopsis() string {
return `Updates "disk_size" from int to string in QEMU builders.`
}