1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
|
package ethutil
import (
"fmt"
"log"
"os"
"os/user"
"path"
"runtime"
)
// Config struct
type config struct {
Db Database
Log *Logger
ExecPath string
Debug bool
Ver string
ClientString string
Pubkey []byte
Identifier string
}
var Config *config
// Read config
//
// Initialize the global Config variable with default settings
func ReadConfig(base string, logTypes LoggerType, id string) *config {
if Config == nil {
usr, _ := user.Current()
path := path.Join(usr.HomeDir, base)
if len(base) > 0 {
//Check if the logging directory already exists, create it if not
_, err := os.Stat(path)
if err != nil {
if os.IsNotExist(err) {
log.Printf("Debug logging directory %s doesn't exist, creating it\n", path)
os.Mkdir(path, 0777)
}
}
}
Config = &config{ExecPath: path, Debug: true, Ver: "0.5.0 RC11"}
Config.Identifier = id
Config.Log = NewLogger(logTypes, LogLevelDebug)
Config.SetClientString("/Ethereum(G)")
}
return Config
}
// Set client string
//
func (c *config) SetClientString(str string) {
id := runtime.GOOS
if len(c.Identifier) > 0 {
id = c.Identifier
}
Config.ClientString = fmt.Sprintf("%s nv%s/%s", str, c.Ver, id)
}
type LoggerType byte
const (
LogFile = 0x1
LogStd = 0x2
)
type LogSystem interface {
Println(v ...interface{})
Printf(format string, v ...interface{})
}
type Logger struct {
logSys []LogSystem
logLevel int
}
func NewLogger(flag LoggerType, level int) *Logger {
var loggers []LogSystem
flags := log.LstdFlags
if flag&LogFile > 0 {
file, err := os.OpenFile(path.Join(Config.ExecPath, "debug.log"), os.O_RDWR|os.O_CREATE|os.O_APPEND, os.ModePerm)
if err != nil {
log.Panic("unable to create file logger", err)
}
log := log.New(file, "", flags)
loggers = append(loggers, log)
}
if flag&LogStd > 0 {
log := log.New(os.Stdout, "", flags)
loggers = append(loggers, log)
}
return &Logger{logSys: loggers, logLevel: level}
}
func (log *Logger) AddLogSystem(logger LogSystem) {
log.logSys = append(log.logSys, logger)
}
const (
LogLevelDebug = iota
LogLevelInfo
)
func (log *Logger) Debugln(v ...interface{}) {
if log.logLevel != LogLevelDebug {
return
}
for _, logger := range log.logSys {
logger.Println(v...)
}
}
func (log *Logger) Debugf(format string, v ...interface{}) {
if log.logLevel != LogLevelDebug {
return
}
for _, logger := range log.logSys {
logger.Printf(format, v...)
}
}
func (log *Logger) Infoln(v ...interface{}) {
if log.logLevel > LogLevelInfo {
return
}
for _, logger := range log.logSys {
logger.Println(v...)
}
}
func (log *Logger) Infof(format string, v ...interface{}) {
if log.logLevel > LogLevelInfo {
return
}
for _, logger := range log.logSys {
logger.Printf(format, v...)
}
}
func (log *Logger) Fatal(v ...interface{}) {
if log.logLevel > LogLevelInfo {
return
}
for _, logger := range log.logSys {
logger.Println(v...)
}
os.Exit(1)
}
|
