log

package

v0.1.6 Latest Latest Go to latest Published: Apr 24, 2026 License: MIT Imports: 9 Imported by: 0

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const (
	LogSubDir        = "logs"
	LLMLogFilePrefix = "llm"
	AppLogFilePrefix = "app"
)

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const DefaultLogRetentionDays = 30

DefaultLogRetentionDays is the default number of days to keep log files.

This section is empty.

func ListLogFiles(dataDir, prefix string) ([]fs.FileInfo, error)

ListLogFiles returns log file names matching the given prefix, sorted by date descending.

func LogDir(dataDir string) string

LogDir returns the full path to the log subdirectory.

func NewLLMLogger(dataDir string) (*slog.Logger, error)

NewLLMLogger creates a dedicated JSON logger for LLM request/response logging.

func SetRetentionDays(days int)

SetRetentionDays configures how many days of log files to keep. Must be called before creating any DailyRotateWriter.

func SetupDefaultLogger(dataDir string) error

SetupDefaultLogger configures the global slog logger to write to a daily-rotating file and stderr simultaneously.

type DailyRotateWriter struct {
	// contains filtered or unexported fields
}

DailyRotateWriter writes log output to date-named files and rotates daily. File naming: {prefix}-{YYYY-MM-DD}.log

func NewDailyRotateWriter(dir, prefix string) (*DailyRotateWriter, error)

NewDailyRotateWriter creates a writer that rotates files daily under dir/LogSubDir/.

func (w *DailyRotateWriter) Close() error

Close closes the current log file.

func (w *DailyRotateWriter) Write(p []byte) (int, error)

Write implements io.Writer. It rotates the file when the date changes.