123 lines
3.6 KiB
Go
123 lines
3.6 KiB
Go
// maubot - A plugin-based Matrix bot system written in Go.
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// Copyright (C) 2018 Tulir Asokan
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//
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// This program is free software: you can redistribute it and/or modify
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// it under the terms of the GNU Affero General Public License as published by
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// the Free Software Foundation, either version 3 of the License, or
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// (at your option) any later version.
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//
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// This program is distributed in the hope that it will be useful,
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// but WITHOUT ANY WARRANTY; without even the implied warranty of
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// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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// GNU Affero General Public License for more details.
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//
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// You should have received a copy of the GNU Affero General Public License
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// along with this program. If not, see <https://www.gnu.org/licenses/>.
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package config
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import (
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"errors"
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"os"
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"path/filepath"
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"strings"
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"text/template"
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"maunium.net/go/maulogger"
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)
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// LogConfig contains configs for the logger.
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type LogConfig struct {
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Directory string `yaml:"directory"`
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FileNameFormat string `yaml:"file_name_format"`
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FileDateFormat string `yaml:"file_date_format"`
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FileMode uint32 `yaml:"file_mode"`
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TimestampFormat string `yaml:"timestamp_format"`
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RawPrintLevel string `yaml:"print_level"`
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PrintLevel int `yaml:"-"`
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}
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type umLogConfig LogConfig
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func (lc *LogConfig) UnmarshalYAML(unmarshal func(interface{}) error) error {
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err := unmarshal((*umLogConfig)(lc))
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if err != nil {
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return err
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}
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switch strings.ToUpper(lc.RawPrintLevel) {
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case "DEBUG":
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lc.PrintLevel = maulogger.LevelDebug.Severity
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case "INFO":
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lc.PrintLevel = maulogger.LevelInfo.Severity
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case "WARN", "WARNING":
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lc.PrintLevel = maulogger.LevelWarn.Severity
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case "ERR", "ERROR":
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lc.PrintLevel = maulogger.LevelError.Severity
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case "FATAL":
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lc.PrintLevel = maulogger.LevelFatal.Severity
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default:
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return errors.New("invalid print level " + lc.RawPrintLevel)
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}
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return err
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}
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func (lc *LogConfig) MarshalYAML() (interface{}, error) {
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switch {
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case lc.PrintLevel >= maulogger.LevelFatal.Severity:
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lc.RawPrintLevel = maulogger.LevelFatal.Name
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case lc.PrintLevel >= maulogger.LevelError.Severity:
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lc.RawPrintLevel = maulogger.LevelError.Name
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case lc.PrintLevel >= maulogger.LevelWarn.Severity:
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lc.RawPrintLevel = maulogger.LevelWarn.Name
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case lc.PrintLevel >= maulogger.LevelInfo.Severity:
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lc.RawPrintLevel = maulogger.LevelInfo.Name
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default:
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lc.RawPrintLevel = maulogger.LevelDebug.Name
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}
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return lc, nil
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}
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// CreateLogConfig creates a basic LogConfig.
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func CreateLogConfig() LogConfig {
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return LogConfig{
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Directory: "./logs",
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FileNameFormat: "{{.Date}}-{{.Index}}.log",
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TimestampFormat: "Jan _2, 2006 15:04:05",
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FileMode: 0600,
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FileDateFormat: "2006-01-02",
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PrintLevel: 10,
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}
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}
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type FileFormatData struct {
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Date string
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Index int
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}
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// GetFileFormat returns a mauLogger-compatible logger file format based on the data in the struct.
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func (lc LogConfig) GetFileFormat() maulogger.LoggerFileFormat {
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os.MkdirAll(lc.Directory, 0700)
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path := filepath.Join(lc.Directory, lc.FileNameFormat)
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tpl, _ := template.New("fileformat").Parse(path)
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return func(now string, i int) string {
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var buf strings.Builder
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tpl.Execute(&buf, FileFormatData{
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Date: now,
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Index: i,
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})
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return buf.String()
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}
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}
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// Configure configures a mauLogger instance with the data in this struct.
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func (lc LogConfig) Configure(log maulogger.Logger) {
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basicLogger := log.(*maulogger.BasicLogger)
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basicLogger.FileFormat = lc.GetFileFormat()
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basicLogger.FileMode = os.FileMode(lc.FileMode)
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basicLogger.FileTimeFormat = lc.FileDateFormat
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basicLogger.TimeFormat = lc.TimestampFormat
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basicLogger.PrintLevel = lc.PrintLevel
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}
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