23 lines
565 B
Go
23 lines
565 B
Go
package packer
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import "fmt"
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import "io"
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// The Ui interface handles all communication for Packer with the outside
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// world. This sort of control allows us to strictly control how output
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// is formatted and various levels of output.
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type Ui interface {
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Say(format string, a ...interface{})
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}
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// The ReaderWriterUi is a UI that writes and reads from standard Go
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// io.Reader and io.Writer.
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type ReaderWriterUi struct {
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Reader io.Reader
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Writer io.Writer
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}
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func (rw *ReaderWriterUi) Say(format string, a ...interface{}) {
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fmt.Fprintf(rw.Writer, format, a...)
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}
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