546 lines
16 KiB
Go
546 lines
16 KiB
Go
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package ulog
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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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"io"
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"log/syslog"
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"os"
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"path/filepath"
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"reflect"
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"regexp"
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"runtime"
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"strings"
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"sync"
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"syscall"
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"time"
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"unsafe"
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)
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const (
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TIME_NONE int = iota
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TIME_DATETIME
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TIME_MSDATETIME
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TIME_TIMESTAMP
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TIME_MSTIMESTAMP
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)
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var (
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cores int
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facilities = map[string]syslog.Priority{
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"user": syslog.LOG_USER,
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"daemon": syslog.LOG_DAEMON,
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"local0": syslog.LOG_LOCAL0,
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"local1": syslog.LOG_LOCAL1,
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"local2": syslog.LOG_LOCAL2,
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"local3": syslog.LOG_LOCAL3,
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"local4": syslog.LOG_LOCAL4,
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"local5": syslog.LOG_LOCAL5,
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"local6": syslog.LOG_LOCAL6,
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"local7": syslog.LOG_LOCAL7,
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}
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severities = map[string]syslog.Priority{
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"error": syslog.LOG_ERR,
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"warning": syslog.LOG_WARNING,
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"info": syslog.LOG_INFO,
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"debug": syslog.LOG_DEBUG,
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}
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severityLabels = map[syslog.Priority]string{
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syslog.LOG_ERR: "ERRO ",
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syslog.LOG_WARNING: "WARN ",
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syslog.LOG_INFO: "INFO ",
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syslog.LOG_DEBUG: "DBUG ",
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}
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severityColors = map[syslog.Priority]string{
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syslog.LOG_ERR: "\x1b[31m",
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syslog.LOG_WARNING: "\x1b[33m",
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syslog.LOG_INFO: "\x1b[36m",
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syslog.LOG_DEBUG: "\x1b[32m",
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}
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)
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type FileOutput struct {
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handle *os.File
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last time.Time
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}
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type ULog struct {
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file, console, syslog bool
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fileOutputs map[string]*FileOutput
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filePath string
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fileTime int
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fileLast time.Time
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fileSeverity bool
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consoleHandle io.Writer
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consoleTime int
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consoleSeverity bool
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consoleColors bool
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syslogHandle *syslog.Writer
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syslogRemote string
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syslogName string
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syslogFacility syslog.Priority
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optionUTC bool
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level syslog.Priority
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sync.Mutex
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}
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func New(target string) *ULog {
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if cores == 0 {
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cores = runtime.NumCPU()
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}
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log := &ULog{
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fileOutputs: map[string]*FileOutput{},
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syslogHandle: nil,
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}
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return log.Load(target)
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}
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func (this *ULog) Load(target string) *ULog {
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this.Close()
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if cores > 1 {
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this.Lock()
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defer this.Unlock()
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}
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this.file = false
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this.filePath = ""
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this.fileTime = TIME_DATETIME
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this.fileSeverity = true
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this.console = false
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this.consoleTime = TIME_DATETIME
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this.consoleSeverity = true
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this.consoleColors = true
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this.consoleHandle = os.Stderr
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this.syslog = false
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this.syslogRemote = ""
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this.syslogName = filepath.Base(os.Args[0])
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this.syslogFacility = syslog.LOG_DAEMON
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this.optionUTC = false
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this.level = syslog.LOG_INFO
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for _, target := range regexp.MustCompile("(file|console|syslog|option)\\s*\\(([^\\)]*)\\)").FindAllStringSubmatch(target, -1) {
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switch strings.ToLower(target[1]) {
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case "file":
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this.file = true
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for _, option := range regexp.MustCompile("([^:=,\\s]+)\\s*[:=]\\s*([^,\\s]+)").FindAllStringSubmatch(target[2], -1) {
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switch strings.ToLower(option[1]) {
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case "path":
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this.filePath = option[2]
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case "time":
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option[2] = strings.ToLower(option[2])
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switch {
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case option[2] == "datetime":
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this.fileTime = TIME_DATETIME
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case option[2] == "msdatetime":
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this.fileTime = TIME_MSDATETIME
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case option[2] == "stamp" || option[2] == "timestamp":
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this.fileTime = TIME_TIMESTAMP
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case option[2] == "msstamp" || option[2] == "mstimestamp":
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this.fileTime = TIME_MSTIMESTAMP
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case option[2] != "1" && option[2] != "true" && option[2] != "on" && option[2] != "yes":
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this.fileTime = TIME_NONE
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}
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case "severity":
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option[2] = strings.ToLower(option[2])
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if option[2] != "1" && option[2] != "true" && option[2] != "on" && option[2] != "yes" {
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this.fileSeverity = false
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}
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}
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}
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if this.filePath == "" {
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this.file = false
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}
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case "console":
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this.console = true
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for _, option := range regexp.MustCompile("([^:=,\\s]+)\\s*[:=]\\s*([^,\\s]+)").FindAllStringSubmatch(target[2], -1) {
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option[2] = strings.ToLower(option[2])
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switch strings.ToLower(option[1]) {
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case "output":
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if option[2] == "stdout" {
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this.consoleHandle = os.Stdout
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}
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case "time":
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switch {
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case option[2] == "datetime":
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this.consoleTime = TIME_DATETIME
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case option[2] == "msdatetime":
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this.consoleTime = TIME_MSDATETIME
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case option[2] == "stamp" || option[2] == "timestamp":
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this.consoleTime = TIME_TIMESTAMP
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case option[2] == "msstamp" || option[2] == "mstimestamp":
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this.consoleTime = TIME_MSTIMESTAMP
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case option[2] != "1" && option[2] != "true" && option[2] != "on" && option[2] != "yes":
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this.consoleTime = TIME_NONE
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}
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case "severity":
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if option[2] != "1" && option[2] != "true" && option[2] != "on" && option[2] != "yes" {
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this.consoleSeverity = false
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}
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case "colors":
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if option[2] != "1" && option[2] != "true" && option[2] != "on" && option[2] != "yes" {
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this.consoleColors = false
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}
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}
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}
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case "syslog":
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this.syslog = true
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for _, option := range regexp.MustCompile("([^:=,\\s]+)\\s*[:=]\\s*([^,\\s]+)").FindAllStringSubmatch(target[2], -1) {
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switch strings.ToLower(option[1]) {
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case "remote":
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this.syslogRemote = option[2]
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if !regexp.MustCompile(":\\d+$").MatchString(this.syslogRemote) {
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this.syslogRemote += ":514"
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}
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case "name":
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this.syslogName = option[2]
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case "facility":
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this.syslogFacility = facilities[strings.ToLower(option[2])]
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}
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}
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case "option":
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for _, option := range regexp.MustCompile("([^:=,\\s]+)\\s*[:=]\\s*([^,\\s]+)").FindAllStringSubmatch(target[2], -1) {
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option[2] = strings.ToLower(option[2])
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switch strings.ToLower(option[1]) {
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case "utc":
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if option[2] == "1" || option[2] == "true" || option[2] == "on" || option[2] == "yes" {
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this.optionUTC = true
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}
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case "level":
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this.level = severities[strings.ToLower(option[2])]
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}
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}
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}
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}
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var info syscall.Termios
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if _, _, err := syscall.Syscall6(syscall.SYS_IOCTL, this.consoleHandle.(*os.File).Fd(), syscall.TCGETS, uintptr(unsafe.Pointer(&info)), 0, 0, 0); err != 0 {
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this.consoleColors = false
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}
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return this
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}
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func (this *ULog) Close() {
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if cores > 1 {
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this.Lock()
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defer this.Unlock()
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}
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if this.syslogHandle != nil {
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this.syslogHandle.Close()
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this.syslogHandle = nil
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}
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for path, output := range this.fileOutputs {
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if output.handle != nil {
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output.handle.Close()
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}
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delete(this.fileOutputs, path)
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}
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}
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func (this *ULog) SetLevel(level string) {
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level = strings.ToLower(level)
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switch level {
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case "error":
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this.level = syslog.LOG_ERR
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case "warning":
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this.level = syslog.LOG_WARNING
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case "info":
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this.level = syslog.LOG_INFO
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case "debug":
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this.level = syslog.LOG_DEBUG
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}
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}
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func strftime(layout string, base time.Time) string {
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var output []string
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length := len(layout)
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for index := 0; index < length; index++ {
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switch layout[index] {
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case '%':
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if index < length-1 {
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switch layout[index+1] {
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case 'a':
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output = append(output, base.Format("Mon"))
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case 'A':
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output = append(output, base.Format("Monday"))
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case 'b':
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output = append(output, base.Format("Jan"))
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case 'B':
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output = append(output, base.Format("January"))
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case 'c':
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output = append(output, base.Format("Mon Jan 2 15:04:05 2006"))
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case 'C':
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output = append(output, fmt.Sprintf("%02d", base.Year()/100))
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case 'd':
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output = append(output, fmt.Sprintf("%02d", base.Day()))
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case 'D':
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output = append(output, fmt.Sprintf("%02d/%02d/%02d", base.Month(), base.Day(), base.Year()%100))
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case 'e':
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output = append(output, fmt.Sprintf("%2d", base.Day()))
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case 'f':
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output = append(output, fmt.Sprintf("%06d", base.Nanosecond()/1000))
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case 'F':
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output = append(output, fmt.Sprintf("%04d-%02d-%02d", base.Year(), base.Month(), base.Day()))
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case 'g':
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year, _ := base.ISOWeek()
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output = append(output, fmt.Sprintf("%02d", year%100))
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case 'G':
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year, _ := base.ISOWeek()
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output = append(output, fmt.Sprintf("%04d", year))
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case 'h':
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output = append(output, base.Format("Jan"))
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case 'H':
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output = append(output, fmt.Sprintf("%02d", base.Hour()))
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case 'I':
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if base.Hour() == 0 || base.Hour() == 12 {
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output = append(output, "12")
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} else {
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output = append(output, fmt.Sprintf("%02d", base.Hour()%12))
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}
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case 'j':
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output = append(output, fmt.Sprintf("%03d", base.YearDay()))
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case 'k':
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output = append(output, fmt.Sprintf("%2d", base.Hour()))
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case 'l':
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if base.Hour() == 0 || base.Hour() == 12 {
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output = append(output, "12")
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} else {
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output = append(output, fmt.Sprintf("%2d", base.Hour()%12))
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}
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case 'm':
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output = append(output, fmt.Sprintf("%02d", base.Month()))
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case 'M':
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output = append(output, fmt.Sprintf("%02d", base.Minute()))
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case 'n':
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output = append(output, "\n")
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case 'p':
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if base.Hour() < 12 {
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output = append(output, "AM")
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} else {
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output = append(output, "PM")
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}
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case 'P':
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if base.Hour() < 12 {
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output = append(output, "am")
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} else {
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output = append(output, "pm")
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}
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case 'r':
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if base.Hour() == 0 || base.Hour() == 12 {
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output = append(output, "12")
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} else {
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output = append(output, fmt.Sprintf("%02d", base.Hour()%12))
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}
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output = append(output, fmt.Sprintf(":%02d:%02d", base.Minute(), base.Second()))
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if base.Hour() < 12 {
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output = append(output, " AM")
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} else {
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output = append(output, " PM")
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}
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case 'R':
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output = append(output, fmt.Sprintf("%02d:%02d", base.Hour(), base.Minute()))
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case 's':
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output = append(output, fmt.Sprintf("%d", base.Unix()))
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case 'S':
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output = append(output, fmt.Sprintf("%02d", base.Second()))
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case 't':
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output = append(output, "\t")
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case 'T':
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output = append(output, fmt.Sprintf("%02d:%02d:%02d", base.Hour(), base.Minute(), base.Second()))
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case 'u':
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day := base.Weekday()
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if day == 0 {
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day = 7
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}
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output = append(output, fmt.Sprintf("%d", day))
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case 'U':
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output = append(output, fmt.Sprintf("%d", (base.YearDay()+6-int(base.Weekday()))/7))
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case 'V':
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_, week := base.ISOWeek()
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output = append(output, fmt.Sprintf("%02d", week))
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case 'w':
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output = append(output, fmt.Sprintf("%d", base.Weekday()))
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case 'W':
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day := int(base.Weekday())
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if day == 0 {
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|
day = 6
|
||
|
|
} else {
|
||
|
|
day -= 1
|
||
|
|
}
|
||
|
|
output = append(output, fmt.Sprintf("%d", (base.YearDay()+6-day)/7))
|
||
|
|
case 'x':
|
||
|
|
output = append(output, fmt.Sprintf("%02d/%02d/%02d", base.Month(), base.Day(), base.Year()%100))
|
||
|
|
case 'X':
|
||
|
|
output = append(output, fmt.Sprintf("%02d:%02d:%02d", base.Hour(), base.Minute(), base.Second()))
|
||
|
|
case 'y':
|
||
|
|
output = append(output, fmt.Sprintf("%02d", base.Year()%100))
|
||
|
|
case 'Y':
|
||
|
|
output = append(output, fmt.Sprintf("%04d", base.Year()))
|
||
|
|
case 'z':
|
||
|
|
output = append(output, base.Format("-0700"))
|
||
|
|
case 'Z':
|
||
|
|
output = append(output, base.Format("MST"))
|
||
|
|
case '%':
|
||
|
|
output = append(output, "%")
|
||
|
|
}
|
||
|
|
index++
|
||
|
|
}
|
||
|
|
default:
|
||
|
|
output = append(output, string(layout[index]))
|
||
|
|
}
|
||
|
|
}
|
||
|
|
return strings.Join(output, "")
|
||
|
|
}
|
||
|
|
|
||
|
|
func (this *ULog) log(now time.Time, severity syslog.Priority, xlayout interface{}, a ...interface{}) {
|
||
|
|
var err error
|
||
|
|
if this.level < severity || (!this.syslog && !this.file && !this.console) {
|
||
|
|
return
|
||
|
|
}
|
||
|
|
layout := ""
|
||
|
|
switch reflect.TypeOf(xlayout).Kind() {
|
||
|
|
case reflect.Map:
|
||
|
|
var buffer bytes.Buffer
|
||
|
|
|
||
|
|
encoder := json.NewEncoder(&buffer)
|
||
|
|
encoder.SetEscapeHTML(false)
|
||
|
|
if err := encoder.Encode(xlayout); err == nil {
|
||
|
|
layout = "%s"
|
||
|
|
a = []interface{}{bytes.TrimSpace(buffer.Bytes())}
|
||
|
|
}
|
||
|
|
case reflect.String:
|
||
|
|
layout = xlayout.(string)
|
||
|
|
}
|
||
|
|
layout = strings.TrimSpace(layout)
|
||
|
|
if this.syslog {
|
||
|
|
if this.syslogHandle == nil {
|
||
|
|
if cores > 1 {
|
||
|
|
this.Lock()
|
||
|
|
}
|
||
|
|
if this.syslogHandle == nil {
|
||
|
|
protocol := ""
|
||
|
|
if this.syslogRemote != "" {
|
||
|
|
protocol = "udp"
|
||
|
|
}
|
||
|
|
if this.syslogHandle, err = syslog.Dial(protocol, this.syslogRemote, this.syslogFacility, this.syslogName); err != nil {
|
||
|
|
this.syslogHandle = nil
|
||
|
|
}
|
||
|
|
}
|
||
|
|
if cores > 1 {
|
||
|
|
this.Unlock()
|
||
|
|
}
|
||
|
|
}
|
||
|
|
if this.syslogHandle != nil {
|
||
|
|
switch severity {
|
||
|
|
case syslog.LOG_ERR:
|
||
|
|
this.syslogHandle.Err(fmt.Sprintf(layout, a...))
|
||
|
|
case syslog.LOG_WARNING:
|
||
|
|
this.syslogHandle.Warning(fmt.Sprintf(layout, a...))
|
||
|
|
case syslog.LOG_INFO:
|
||
|
|
this.syslogHandle.Info(fmt.Sprintf(layout, a...))
|
||
|
|
case syslog.LOG_DEBUG:
|
||
|
|
this.syslogHandle.Debug(fmt.Sprintf(layout, a...))
|
||
|
|
}
|
||
|
|
}
|
||
|
|
}
|
||
|
|
if this.optionUTC {
|
||
|
|
now = now.UTC()
|
||
|
|
} else {
|
||
|
|
now = now.Local()
|
||
|
|
}
|
||
|
|
if this.file {
|
||
|
|
path := strftime(this.filePath, now)
|
||
|
|
if cores > 1 {
|
||
|
|
this.Lock()
|
||
|
|
}
|
||
|
|
if this.fileOutputs[path] == nil {
|
||
|
|
os.MkdirAll(filepath.Dir(path), 0755)
|
||
|
|
if handle, err := os.OpenFile(path, os.O_CREATE|os.O_WRONLY|os.O_APPEND, 0644); err == nil {
|
||
|
|
this.fileOutputs[path] = &FileOutput{handle: handle}
|
||
|
|
}
|
||
|
|
}
|
||
|
|
if this.fileOutputs[path] != nil && this.fileOutputs[path].handle != nil {
|
||
|
|
prefix := ""
|
||
|
|
switch this.fileTime {
|
||
|
|
case TIME_DATETIME:
|
||
|
|
prefix = fmt.Sprintf("%04d-%02d-%02d %02d:%02d:%02d ", now.Year(), now.Month(), now.Day(), now.Hour(), now.Minute(), now.Second())
|
||
|
|
case TIME_MSDATETIME:
|
||
|
|
prefix = fmt.Sprintf("%04d-%02d-%02d %02d:%02d:%02d.%03d ", now.Year(), now.Month(), now.Day(), now.Hour(), now.Minute(), now.Second(), now.Nanosecond()/int(time.Millisecond))
|
||
|
|
case TIME_TIMESTAMP:
|
||
|
|
prefix = fmt.Sprintf("%d ", now.Unix())
|
||
|
|
case TIME_MSTIMESTAMP:
|
||
|
|
prefix = fmt.Sprintf("%d ", now.UnixNano()/int64(time.Millisecond))
|
||
|
|
}
|
||
|
|
if this.fileSeverity {
|
||
|
|
prefix += severityLabels[severity]
|
||
|
|
}
|
||
|
|
this.fileOutputs[path].handle.WriteString(fmt.Sprintf(prefix+layout+"\n", a...))
|
||
|
|
this.fileOutputs[path].last = now
|
||
|
|
}
|
||
|
|
if now.Sub(this.fileLast) >= 5*time.Second {
|
||
|
|
this.fileLast = now
|
||
|
|
for path, output := range this.fileOutputs {
|
||
|
|
if now.Sub(output.last) >= 5*time.Second {
|
||
|
|
output.handle.Close()
|
||
|
|
delete(this.fileOutputs, path)
|
||
|
|
}
|
||
|
|
}
|
||
|
|
}
|
||
|
|
if cores > 1 {
|
||
|
|
this.Unlock()
|
||
|
|
}
|
||
|
|
}
|
||
|
|
if this.console {
|
||
|
|
prefix := ""
|
||
|
|
switch this.consoleTime {
|
||
|
|
case TIME_DATETIME:
|
||
|
|
prefix = fmt.Sprintf("%04d-%02d-%02d %02d:%02d:%02d ", now.Year(), now.Month(), now.Day(), now.Hour(), now.Minute(), now.Second())
|
||
|
|
case TIME_MSDATETIME:
|
||
|
|
prefix = fmt.Sprintf("%04d-%02d-%02d %02d:%02d:%02d.%03d ", now.Year(), now.Month(), now.Day(), now.Hour(), now.Minute(), now.Second(), now.Nanosecond()/int(time.Millisecond))
|
||
|
|
case TIME_TIMESTAMP:
|
||
|
|
prefix = fmt.Sprintf("%d ", now.Unix())
|
||
|
|
case TIME_MSTIMESTAMP:
|
||
|
|
prefix = fmt.Sprintf("%d ", now.UnixNano()/int64(time.Millisecond))
|
||
|
|
}
|
||
|
|
if this.consoleSeverity {
|
||
|
|
if this.consoleColors {
|
||
|
|
prefix += fmt.Sprintf("%s%s\x1b[0m", severityColors[severity], severityLabels[severity])
|
||
|
|
} else {
|
||
|
|
prefix += severityLabels[severity]
|
||
|
|
}
|
||
|
|
}
|
||
|
|
if cores > 1 {
|
||
|
|
this.Lock()
|
||
|
|
}
|
||
|
|
fmt.Fprintf(this.consoleHandle, prefix+layout+"\n", a...)
|
||
|
|
if cores > 1 {
|
||
|
|
this.Unlock()
|
||
|
|
}
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
func (this *ULog) Error(layout interface{}, a ...interface{}) {
|
||
|
|
this.log(time.Now(), syslog.LOG_ERR, layout, a...)
|
||
|
|
}
|
||
|
|
func (this *ULog) Warn(layout interface{}, a ...interface{}) {
|
||
|
|
this.log(time.Now(), syslog.LOG_WARNING, layout, a...)
|
||
|
|
}
|
||
|
|
func (this *ULog) Info(layout interface{}, a ...interface{}) {
|
||
|
|
this.log(time.Now(), syslog.LOG_INFO, layout, a...)
|
||
|
|
}
|
||
|
|
func (this *ULog) Debug(layout interface{}, a ...interface{}) {
|
||
|
|
this.log(time.Now(), syslog.LOG_DEBUG, layout, a...)
|
||
|
|
}
|
||
|
|
|
||
|
|
func (this *ULog) ErrorTime(now time.Time, layout interface{}, a ...interface{}) {
|
||
|
|
this.log(now, syslog.LOG_ERR, layout, a...)
|
||
|
|
}
|
||
|
|
func (this *ULog) WarnTime(now time.Time, layout interface{}, a ...interface{}) {
|
||
|
|
this.log(now, syslog.LOG_WARNING, layout, a...)
|
||
|
|
}
|
||
|
|
func (this *ULog) InfoTime(now time.Time, layout interface{}, a ...interface{}) {
|
||
|
|
this.log(now, syslog.LOG_INFO, layout, a...)
|
||
|
|
}
|
||
|
|
func (this *ULog) DebugTime(now time.Time, layout interface{}, a ...interface{}) {
|
||
|
|
this.log(now, syslog.LOG_DEBUG, layout, a...)
|
||
|
|
}
|