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package signature
import (
"slices"
"strconv"
)
// AppendTo renders the signature in canonical Git format.
func (signature Signature) AppendTo(dst []byte) []byte {
dst = slices.Grow(dst, len(signature.Name)+len(signature.Email)+32)
dst = append(dst, signature.Name...)
dst = append(dst, ' ', '<')
dst = append(dst, signature.Email...)
dst = append(dst, '>', ' ')
dst = strconv.AppendInt(dst, signature.WhenUnix, 10)
dst = append(dst, ' ')
offset := signature.OffsetMinutes
var sign byte = '+'
if offset < 0 {
sign = '-'
offset = -offset
}
hh := offset / 60
mm := offset % 60
dst = append(dst, sign)
dst = append(dst, byte('0'+hh/10), byte('0'+hh%10))
dst = append(dst, byte('0'+mm/10), byte('0'+mm%10))
return dst
}
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