packer-cn/builder/generated_data.go

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package builder
import "github.com/hashicorp/packer/helper/multistep"
// GeneratedData manages variables exported by a builder after
// it started. It uses the builder's multistep.StateBag internally, make sure it
// is not nil before calling any functions.
type GeneratedData struct {
// The builder's StateBag
State multistep.StateBag
}
func (gd *GeneratedData) Put(key string, data interface{}) {
genData := make(map[string]interface{})
if _, ok := gd.State.GetOk("generated_data"); ok {
genData = gd.State.Get("generated_data").(map[string]interface{})
}
genData[key] = data
gd.State.Put("generated_data", genData)
}