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45 lines
895 B
45 lines
895 B
package writer
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import (
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"bytes"
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"context"
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"fmt"
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"io"
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"os"
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"strings"
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"gitoa.ru/go-4devs/console/output"
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)
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const newline = "\n"
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func Stderr() output.Output {
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return New(os.Stderr, String)
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}
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func Stdout() output.Output {
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return New(os.Stdout, String)
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}
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func Buffer(buf *bytes.Buffer) output.Output {
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return New(buf, String)
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}
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func String(_ output.Verbosity, msg string, kv ...output.KeyValue) string {
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if len(kv) > 0 {
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nline := ""
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if msg[len(msg)-1:] == newline {
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nline = newline
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}
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return "msg=\"" + strings.TrimSpace(msg) + "\", " + output.KeyValues(kv).String() + nline
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}
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return msg
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}
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func New(w io.Writer, format func(verb output.Verbosity, msg string, kv ...output.KeyValue) string) output.Output {
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return func(ctx context.Context, verb output.Verbosity, msg string, kv ...output.KeyValue) (int, error) {
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return fmt.Fprint(w, format(verb, msg, kv...))
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}
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}
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