traefik/integration/vendor/github.com/docker/libcompose/project/info.go

54 lines
971 B
Go
Raw Normal View History

2017-02-07 21:33:23 +00:00
package project
import (
"bytes"
"io"
"text/tabwriter"
)
// InfoPart holds key/value strings.
type InfoPart struct {
Key, Value string
}
// InfoSet holds a list of Info.
type InfoSet []Info
// Info holds a list of InfoPart.
type Info []InfoPart
func (infos InfoSet) String(titleFlag bool) string {
//no error checking, none of this should fail
buffer := bytes.NewBuffer(make([]byte, 0, 1024))
tabwriter := tabwriter.NewWriter(buffer, 4, 4, 2, ' ', 0)
first := true
for _, info := range infos {
if first && titleFlag {
writeLine(tabwriter, true, info)
}
first = false
writeLine(tabwriter, false, info)
}
tabwriter.Flush()
return buffer.String()
}
func writeLine(writer io.Writer, key bool, info Info) {
first := true
for _, part := range info {
if !first {
writer.Write([]byte{'\t'})
}
first = false
if key {
writer.Write([]byte(part.Key))
} else {
writer.Write([]byte(part.Value))
}
}
writer.Write([]byte{'\n'})
}