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// Copyright (c) 2015-present Mattermost, Inc. All Rights Reserved.
// See License.txt for license information.
package utils
import (
"bytes"
"io"
"io/ioutil"
l4g "github.com/alecthomas/log4go"
)
// InfoReader logs the content of the io.Reader and returns a new io.Reader
// with the same content as the received io.Reader.
// If you pass reader by reference, it won't be re-created unless the loglevel
// includes Debug.
// If an error is returned, the reader is consumed an cannot be read again.
func InfoReader(reader io.Reader, message string) (io.Reader, error) {
var err error
l4g.Info(func() string {
content, err := ioutil.ReadAll(reader)
if err != nil {
return ""
}
reader = bytes.NewReader(content)
return message + string(content)
})
return reader, err
}
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