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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,59 @@ | ||
| // This code is available on the terms of the project LICENSE.md file, | ||
| // also available online at https://blueoakcouncil.org/license/1.0.0. | ||
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| package main | ||
|
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| import ( | ||
| "fmt" | ||
| "os" | ||
|
|
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| "decred.org/dcrdex/dex" | ||
| "github.com/jrick/logrotate/rotator" | ||
| ) | ||
|
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| var ( | ||
| // logRotator is one of the logging outputs. It should be closed on | ||
| // application shutdown. | ||
| logRotator *rotator.Rotator | ||
| log dex.Logger | ||
| ) | ||
|
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| // logWriter implements an io.Writer that outputs to stdout | ||
| // and a rotating log file. | ||
| type logWriter struct{} | ||
|
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| // Write writes the data in p to both destinations. | ||
| func (w logWriter) Write(p []byte) (n int, err error) { | ||
| os.Stdout.Write(p) | ||
| return logRotator.Write(p) | ||
| } | ||
|
|
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| // initLogging initializes the logging rotater to write logs to logFile and | ||
| // create roll files in the same directory. initLogging must be called before | ||
| // the package-global log rotator variables are used. | ||
| func initLogging(lvl string, utc bool) *dex.LoggerMaker { | ||
| err := os.MkdirAll(logDirectory, 0700) | ||
| if err != nil { | ||
| fmt.Fprintf(os.Stderr, "failed to create log directory: %v\n", err) | ||
| os.Exit(1) | ||
| } | ||
| logRotator, err = rotator.New(logFilename, 32*1024, false, maxLogRolls) | ||
| if err != nil { | ||
| fmt.Fprintf(os.Stderr, "failed to create file rotator: %v\n", err) | ||
| os.Exit(1) | ||
| } | ||
| lm, err := dex.NewLoggerMaker(logWriter{}, lvl, utc) | ||
| if err != nil { | ||
| fmt.Fprintf(os.Stderr, "failed to create custom logger: %v\n", err) | ||
| os.Exit(1) | ||
| } | ||
| log = lm.Logger("APP") | ||
| return lm | ||
| } | ||
|
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| // closeFileLogger closes the log rotator. | ||
| func closeFileLogger() { | ||
| if logRotator != nil { | ||
| logRotator.Close() | ||
| } | ||
| } |
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