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32 lines
517 B
Go
32 lines
517 B
Go
package main
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import (
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"io"
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)
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type ProgressReader struct {
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io.Reader
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label string
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total int64
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read int64
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}
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func NewProgressReader(label string, total int64, reader io.Reader) *ProgressReader {
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return &ProgressReader{
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Reader: reader,
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label: label,
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total: total,
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}
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}
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func (pr *ProgressReader) Read(p []byte) (int, error) {
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n, err := pr.Reader.Read(p)
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pr.read += int64(n)
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percentage := float64(pr.read) / float64(pr.total) * 100
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log.Printf("\r%s %.1f%%", pr.label, percentage)
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return n, err
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}
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