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// Copyright Vespa.ai. Licensed under the terms of the Apache 2.0 license. See LICENSE in the project root.
// Author: arnej
// handling of informational output
package trace
import (
"fmt"
"os"
"strings"
"time"
"github.com/vespa-engine/vespa/client/go/internal/admin/envvars"
)
func getComponent() string {
s := os.Args[0]
parts := strings.Split(s, "/")
return parts[len(parts)-1]
}
// make a vespa-format log line
func logMessage(l outputLevel, msg string) {
out := os.Stderr
unixTime := float64(time.Now().UnixMicro()) * 1.0e-6
hostname := os.Getenv(envvars.VESPA_HOSTNAME)
pid := os.Getpid()
service := os.Getenv(envvars.VESPA_SERVICE_NAME)
if service == "" {
service = "-"
}
component := getComponent()
level := "error"
switch l {
case levelWarning:
level = "warning"
case levelInfo:
level = "info"
case levelTrace:
level = "info"
msg = fmt.Sprintf("[trace] %s", msg)
case levelDebug:
level = "debug"
case levelSpam:
level = "spam"
}
if !strings.HasSuffix(msg, "\n") {
msg = msg + "\n"
}
fmt.Fprintf(out, "%.6f\t%s\t%d\t%s\t%s\t%s\t%s",
unixTime, hostname, pid, service, component, level, msg)
}
func LogInfo(msg string) {
logMessage(levelInfo, msg)
}
func LogDebug(msg string) {
logMessage(levelDebug, msg)
}
func LogWarning(msg string) {
logMessage(levelWarning, msg)
}
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