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4cb83f0f4a
- Document the change at docs/CHANELOG.md - Log fatal errors if the -loggerJSONFields contains unexpected values - Rename -loggerJsonFields to -loggerJSONFields for the sake of consistency naming commonly used in Go Updates https://github.com/VictoriaMetrics/VictoriaMetrics/issues/2348
46 lines
1 KiB
Go
46 lines
1 KiB
Go
package logger
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import (
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"flag"
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"log"
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"strings"
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)
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var loggerJSONFields = flag.String("loggerJSONFields", "", `Allows renaming fields in JSON formatted logs. `+
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`Example: "ts:timestamp,msg:message" renames "ts" to "timestamp" and "msg" to "message". `+
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"Supported fields: ts, level, caller, msg")
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func setLoggerJSONFields() {
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if *loggerJSONFields == "" {
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return
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}
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fields := strings.Split(*loggerJSONFields, ",")
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for _, f := range fields {
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f = strings.TrimSpace(f)
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v := strings.Split(f, ":")
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if len(v) != 2 {
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log.Fatalf("missing ':' delimiter in -loggerJSONFields=%q for %q item", *loggerJSONFields, f)
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}
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name, value := v[0], v[1]
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switch name {
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case "ts":
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fieldTs = value
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case "level":
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fieldLevel = value
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case "caller":
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fieldCaller = value
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case "msg":
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fieldMsg = value
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default:
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log.Fatalf("unexpected json field name in -loggerJSONFields=%q: %q; supported values: ts, level, caller, msg", *loggerJSONFields, name)
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}
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}
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}
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var (
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fieldTs = "ts"
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fieldLevel = "level"
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fieldCaller = "caller"
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fieldMsg = "msg"
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)
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