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30 lines
586 B
Go
30 lines
586 B
Go
package main
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import (
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"io"
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"os"
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)
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// These are the environmental variables that determine if we log, and if
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// we log whether or not the log should go to a file.
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const EnvLog = "TF_LOG"
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const EnvLogFile = "TF_LOG_PATH"
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// logOutput determines where we should send logs (if anywhere).
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func logOutput() (logOutput io.Writer, err error) {
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logOutput = nil
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if os.Getenv(EnvLog) != "" {
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logOutput = os.Stderr
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if logPath := os.Getenv(EnvLogFile); logPath != "" {
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var err error
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logOutput, err = os.Create(logPath)
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if err != nil {
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return nil, err
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}
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}
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}
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return
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}
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