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111 lines
2 KiB
Go
111 lines
2 KiB
Go
// Copyright 2019 The Gitea Authors. All rights reserved.
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// Use of this source code is governed by a MIT-style
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// license that can be found in the LICENSE file.
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package log
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import (
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"bytes"
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"encoding/json"
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"fmt"
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"os"
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"strings"
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)
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// Level is the level of the logger
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type Level int
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const (
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// TRACE represents the lowest log level
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TRACE Level = iota
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// DEBUG is for debug logging
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DEBUG
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// INFO is for information
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INFO
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// WARN is for warning information
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WARN
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// ERROR is for error reporting
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ERROR
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// CRITICAL is for critical errors
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CRITICAL
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// FATAL is for fatal errors
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FATAL
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// NONE is for no logging
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NONE
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)
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var toString = map[Level]string{
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TRACE: "trace",
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DEBUG: "debug",
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INFO: "info",
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WARN: "warn",
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ERROR: "error",
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CRITICAL: "critical",
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FATAL: "fatal",
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NONE: "none",
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}
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var toLevel = map[string]Level{
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"trace": TRACE,
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"debug": DEBUG,
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"info": INFO,
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"warn": WARN,
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"error": ERROR,
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"critical": CRITICAL,
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"fatal": FATAL,
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"none": NONE,
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}
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// Levels returns all the possible logging levels
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func Levels() []string {
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keys := make([]string, 0)
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for key := range toLevel {
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keys = append(keys, key)
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}
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return keys
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}
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func (l Level) String() string {
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s, ok := toString[l]
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if ok {
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return s
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}
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return "info"
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}
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// MarshalJSON takes a Level and turns it into text
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func (l Level) MarshalJSON() ([]byte, error) {
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buffer := bytes.NewBufferString(`"`)
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buffer.WriteString(toString[l])
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buffer.WriteString(`"`)
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return buffer.Bytes(), nil
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}
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// FromString takes a level string and returns a Level
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func FromString(level string) Level {
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temp, ok := toLevel[strings.ToLower(level)]
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if !ok {
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return INFO
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}
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return temp
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}
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// UnmarshalJSON takes text and turns it into a Level
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func (l *Level) UnmarshalJSON(b []byte) error {
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var tmp interface{}
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err := json.Unmarshal(b, &tmp)
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if err != nil {
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fmt.Fprintf(os.Stderr, "Err: %v", err)
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return err
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}
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switch v := tmp.(type) {
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case string:
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*l = FromString(v)
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case int:
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*l = FromString(Level(v).String())
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default:
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*l = INFO
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}
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return nil
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}
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