bubbletea/logging.go
2020-05-25 19:48:36 -04:00

45 lines
1.1 KiB
Go

// +build darwin dragonfly freebsd linux netbsd openbsd solaris
package tea
import (
"log"
"log/syslog"
"os"
)
// LogToFile sets up default logging to log to a file This is helpful as we
// can't print to the terminal since our TUI is occupying it. If the file
// doesn't exist it will be created.
//
// Don't forget to close the file when you're done with it.
//
// f, err := LogToFile("debug.log", "debug")
// if err != nil {
// fmt.Println("fatal:", err)
// os.Exit(1)
// }
// defer f.Close()
func LogToFile(path string, prefix string) (*os.File, error) {
f, err := os.OpenFile(path, os.O_WRONLY|os.O_CREATE|os.O_APPEND, 0644)
if err != nil {
return nil, err
}
log.SetOutput(f)
return f, nil
}
// UseSysLog sets up logging to log the system log. This becomes helpful when
// debugging since we can't print to the terminal since our TUI is occupying it.
//
// On macOS this is a just a matter of: tail -f /var/log/system.log
// On Linux this varies depending on distribution.
func UseSysLog(programName string) error {
l, err := syslog.New(syslog.LOG_NOTICE, programName)
if err != nil {
return err
}
log.SetOutput(l)
return nil
}