pye/logging/log.go

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2024-10-13 11:25:00 +03:00
package logging
import (
"io"
"log"
"log/slog"
"os"
"git.a71.su/Andrew71/pye/config"
)
// LogInit makes slog output to both os.Stdout and a file if needed, and sets slog.LevelDebug if enabled.
func LogInit(debugMode bool) {
var w io.Writer
if config.Cfg.LogToFile {
f, err := os.OpenFile(config.Cfg.LogFile, os.O_RDWR|os.O_CREATE|os.O_APPEND, 0666)
if err != nil {
slog.Error("error opening log file, logging to stdout only", "path", config.Cfg.LogFile, "error", err)
return
}
// No defer f.Close() because that breaks the MultiWriter
w = io.MultiWriter(f, os.Stdout)
} else {
w = os.Stdout
}
// Make slog use intended format
var opts *slog.HandlerOptions
if debugMode {
opts = &slog.HandlerOptions{Level: slog.LevelDebug}
}
slog.SetDefault(slog.New(slog.NewTextHandler(w, opts)))
log.SetFlags(log.LstdFlags | log.Lshortfile)
}