28 lines
602 B
Go
28 lines
602 B
Go
package copy
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import (
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"io"
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"time"
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"github.com/containers/image/types"
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)
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// progressReader is a reader that reports its progress on an interval.
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type progressReader struct {
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source io.Reader
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channel chan types.ProgressProperties
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interval time.Duration
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artifact types.BlobInfo
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lastTime time.Time
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offset uint64
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}
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func (r *progressReader) Read(p []byte) (int, error) {
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n, err := r.source.Read(p)
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r.offset += uint64(n)
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if time.Since(r.lastTime) > r.interval {
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r.channel <- types.ProgressProperties{Artifact: r.artifact, Offset: r.offset}
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r.lastTime = time.Now()
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}
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return n, err
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}
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