forked from kubernetes-retired/heapster
/
serialize.go
49 lines (39 loc) · 893 Bytes
/
serialize.go
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package unit
import (
"bytes"
"io"
)
// Serialize encodes all of the given UnitOption objects into a unit file
func Serialize(opts []*UnitOption) io.Reader {
var buf bytes.Buffer
if len(opts) == 0 {
return &buf
}
idx := map[string][]*UnitOption{}
for _, opt := range opts {
idx[opt.Section] = append(idx[opt.Section], opt)
}
for curSection, curOpts := range idx {
writeSectionHeader(&buf, curSection)
writeNewline(&buf)
for _, opt := range curOpts {
writeOption(&buf, opt)
writeNewline(&buf)
}
writeNewline(&buf)
}
return &buf
}
func writeNewline(buf *bytes.Buffer) {
buf.WriteRune('\n')
}
func writeSectionHeader(buf *bytes.Buffer, section string) {
buf.WriteRune('[')
buf.WriteString(section)
buf.WriteRune(']')
}
func writeOption(buf *bytes.Buffer, opt *UnitOption) {
buf.WriteString(opt.Name)
buf.WriteRune('=')
buf.WriteString(opt.Value)
}