117 lines
2.5 KiB
Go
117 lines
2.5 KiB
Go
package common
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import (
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"fmt"
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"os"
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"path/filepath"
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"runtime"
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)
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type Logger interface {
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Error(format string, args ...any)
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Warning(format string, args ...any)
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Notice(format string, args ...any)
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Info(format string, args ...any)
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Debug(format string, args ...any)
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Trace(format string, args ...any)
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}
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// Dummy Logger does nothing.
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type DummyLogger struct{}
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func (DummyLogger) Error(format string, args ...any) {
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}
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func (DummyLogger) Warning(format string, args ...any) {
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}
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func (DummyLogger) Notice(format string, args ...any) {
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}
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func (DummyLogger) Info(format string, args ...any) {
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}
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func (DummyLogger) Debug(format string, args ...any) {
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}
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func (DummyLogger) Trace(format string, args ...any) {
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}
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// Simple Console Logger that the tests use.
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type LogLevel int
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const (
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LogLevelTrace LogLevel = 5
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LogLevelDebug LogLevel = 4
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LogLevelInfo LogLevel = 3
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LogLevelNotice LogLevel = 2
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LogLevelWarning LogLevel = 1
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LogLevelError LogLevel = 0
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)
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type ConsoleLogger struct {
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LogLevel LogLevel
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}
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// func NewConsoleLogger(logLevel LogLevel) *ConsoleLogger {
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// logger := ConsoleLogger{}
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// logger.LogLevel = logLevel
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// return &logger
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// }
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func (cL ConsoleLogger) Error(format string, args ...any) {
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if cL.LogLevel >= LogLevelError {
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cL.output(os.Stdout, "[ERROR] ", format, args...)
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}
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}
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func (cL ConsoleLogger) Warning(format string, args ...any) {
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if cL.LogLevel >= LogLevelWarning {
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cL.output(os.Stdout, "[WARNING] ", format, args...)
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}
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}
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func (cL ConsoleLogger) Notice(format string, args ...any) {
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if cL.LogLevel >= LogLevelNotice {
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cL.output(os.Stdout, "[NOTICE] ", format, args...)
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}
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}
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func (cL ConsoleLogger) Info(format string, args ...any) {
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if cL.LogLevel >= LogLevelInfo {
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cL.output(os.Stdout, "[INFO] ", format, args...)
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}
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}
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func (cL ConsoleLogger) Debug(format string, args ...any) {
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if cL.LogLevel >= LogLevelDebug {
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cL.output(os.Stdout, "[DEBUG] ", format, args...)
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}
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}
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func (cL ConsoleLogger) Trace(format string, args ...any) {
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if cL.LogLevel >= LogLevelTrace {
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cL.output(os.Stdout, "[TRACE] ", format, args...)
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}
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}
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var Log Logger = DummyLogger{}
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// func SetLogger(logger Logger) {
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// Log = logger
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// }
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// output writes `format`, `args` log message prefixed by the source file name, line and `prefix`
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func (ConsoleLogger) output(f *os.File, prefix string, format string, args ...any) {
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_, file, line, ok := runtime.Caller(3)
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if !ok {
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file = "???"
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line = 0
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} else {
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file = filepath.Base(file)
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}
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src := fmt.Sprintf("%s %s:%d ", prefix, file, line) + format + "\n"
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fmt.Fprintf(f, src, args...)
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}
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