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18 lines
441 B
Go
18 lines
441 B
Go
package mtree
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import (
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"fmt"
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"os"
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"time"
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)
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// DebugOutput is the where DEBUG output is written
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var DebugOutput = os.Stderr
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// Debugf does formatted output to DebugOutput, only if DEBUG environment variable is set
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func Debugf(format string, a ...interface{}) (n int, err error) {
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if os.Getenv("DEBUG") != "" {
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return fmt.Fprintf(DebugOutput, "[%d] [DEBUG] %s\n", time.Now().UnixNano(), fmt.Sprintf(format, a...))
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}
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return 0, nil
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}
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