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// Discordgo - Discord bindings for Go
// Available at https://github.com/bwmarrin/discordgo
// Copyright 2015-2016 Bruce Marriner <bruce@sqls.net>. All rights reserved.
// Use of this source code is governed by a BSD-style
// license that can be found in the LICENSE file.
// This file contains code related to discordgo package logging
package discordgo
import (
"fmt"
"log"
"runtime"
"strings"
)
const (
// LogError level is used for critical errors that could lead to data loss
// or panic that would not be returned to a calling function.
LogError int = iota
// LogWarning level is used for very abnormal events and errors that are
// also returned to a calling function.
LogWarning
// LogInformational level is used for normal non-error activity
LogInformational
// LogDebug level is for very detailed non-error activity. This is
// very spammy and will impact performance.
LogDebug
)
// Logger can be used to replace the standard logging for discordgo
var Logger func(msgL, caller int, format string, a ...interface{})
// msglog provides package wide logging consistency for discordgo
// the format, a... portion this command follows that of fmt.Printf
// msgL : LogLevel of the message
// caller : 1 + the number of callers away from the message source
// format : Printf style message format
// a ... : comma separated list of values to pass
func msglog(msgL, caller int, format string, a ...interface{}) {
if Logger != nil {
Logger(msgL, caller, format, a...)
} else {
pc, file, line, _ := runtime.Caller(caller)
files := strings.Split(file, "/")
file = files[len(files)-1]
name := runtime.FuncForPC(pc).Name()
fns := strings.Split(name, ".")
name = fns[len(fns)-1]
msg := fmt.Sprintf(format, a...)
log.Printf("[DG%d] %s:%d:%s() %s\n", msgL, file, line, name, msg)
}
}
// helper function that wraps msglog for the Session struct
// This adds a check to insure the message is only logged
// if the session log level is equal or higher than the
// message log level
func (s *Session) log(msgL int, format string, a ...interface{}) {
if msgL > s.LogLevel {
return
}
msglog(msgL, 2, format, a...)
}
// helper function that wraps msglog for the VoiceConnection struct
// This adds a check to insure the message is only logged
// if the voice connection log level is equal or higher than the
// message log level
func (v *VoiceConnection) log(msgL int, format string, a ...interface{}) {
if msgL > v.LogLevel {
return
}
msglog(msgL, 2, format, a...)
}
// printJSON is a helper function to display JSON data in a easy to read format.
/* NOT USED ATM
func printJSON(body []byte) {
var prettyJSON bytes.Buffer
error := json.Indent(&prettyJSON, body, "", "\t")
if error != nil {
log.Print("JSON parse error: ", error)
}
log.Println(string(prettyJSON.Bytes()))
}
*/
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