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main.go
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main.go
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package main
import (
"database/sql"
"fmt"
"github.com/fsnotify/fsnotify"
"github.com/go-redis/redis"
"github.com/sirupsen/logrus"
"github.com/speed18/d18-notebook/log"
"github.com/speed18/d18-notebook/server"
"github.com/spf13/viper"
"net/http"
"os"
"strings"
)
func printDelimiter() {
fmt.Println("----------------------------------")
}
func initLogger() (*os.File, error) {
var logFile *os.File
log.Logger = logrus.New()
toStdout := viper.Sub("log").GetBool("stdout")
if !toStdout {
filename := os.Getenv("NOTEBOOK_LOG")
if filename == "" {
fmt.Println("load log file from env failed, use log_dev.log instead")
filename = "log/log_dev.log"
} else {
filename = "log/" + filename
fmt.Printf("log file: %s\n", filename)
}
logFile, err := os.OpenFile(filename, os.O_CREATE|os.O_RDWR|os.O_APPEND, 0666)
if err != nil {
return nil, err
}
log.Logger.Out = logFile
} else {
fmt.Println("will log to stdout")
}
log.Logger.SetFormatter(&logrus.TextFormatter{FullTimestamp: true})
logLevel := strings.ToLower(viper.GetString("log_level"))
if logLevel == "" {
fmt.Println("no log level configured, use default level")
logLevel = "info"
log.Logger.SetLevel(logrus.InfoLevel)
} else if logLevel == "debug" {
log.Logger.SetLevel(logrus.DebugLevel)
} else if logLevel == "info" {
log.Logger.SetLevel(logrus.InfoLevel)
} else {
fmt.Printf("Unsupported level: %s, use default level\n", logLevel)
logLevel = "info"
log.Logger.SetLevel(logrus.InfoLevel)
}
fmt.Printf("log level: %s\n", logLevel)
fmt.Println("logger inited")
return logFile, nil
}
func initConfig() error {
configName := os.Getenv("NOTEBOOK_CONFIG")
if configName == "" {
fmt.Println("load config file from env failed, use config_dev.yaml instead")
configName = "config_dev"
} else {
fmt.Printf("config file: %s\n", configName)
}
viper.SetConfigName(configName)
viper.AddConfigPath("./config")
if err := viper.ReadInConfig(); err != nil {
return err
}
viper.WatchConfig()
viper.OnConfigChange(func(in fsnotify.Event) {
fmt.Printf("config file has changed, reload now\n")
})
fmt.Println("config inited")
return nil
}
func initMysql() error {
mysqlConfig := viper.Sub("mysql")
var mysqlConfigStr strings.Builder
mysqlConfigStr.WriteString(mysqlConfig.GetString("user"))
mysqlConfigStr.WriteString(":")
mysqlConfigStr.WriteString(mysqlConfig.GetString("password"))
mysqlConfigStr.WriteString("@tcp(")
mysqlConfigStr.WriteString(mysqlConfig.GetString("addr"))
mysqlConfigStr.WriteString(":")
mysqlConfigStr.WriteString(mysqlConfig.GetString("port"))
mysqlConfigStr.WriteString(")/")
dsn := mysqlConfigStr.String()
var err error
server.DB, err = sql.Open("mysql", dsn)
if err != nil {
return err
}
fmt.Printf("mysql inited\n")
return nil
}
func initRedis() error {
redisConfig := viper.Sub("redis")
server.RDS = redis.NewClient(
&redis.Options{Addr: redisConfig.GetString("addr") + ":" + redisConfig.GetString("port"),
DB: redisConfig.GetInt("DB")})
fmt.Println("redis inited")
return nil
}
func main() {
if err := initConfig(); err != nil {
fmt.Printf("init config failed: %s\n", err.Error())
return
}
printDelimiter()
if err := initMysql(); err != nil {
fmt.Printf("init mysql failed: %s\n", err.Error())
return
}
printDelimiter()
if err := initRedis(); err != nil {
fmt.Printf("init redis failed: %s\n", err.Error())
return
}
printDelimiter()
logFile, err := initLogger()
if err != nil {
fmt.Printf("init logger failed: %s\n", err.Error())
return
}
defer func() {
if logFile == nil {
fmt.Println("logFile is nil, perhaps log to stdout?")
return
}
err := logFile.Close()
if err != nil {
fmt.Printf("ERROR! close log file failed: %s\n", err.Error())
} else {
fmt.Println("log file closed")
}
}()
http.HandleFunc("/api/note/publish", server.NotePublishHandler)
http.HandleFunc("/api/notes", server.NotesHandler)
http.HandleFunc("/api/note", server.NoteHandler)
http.HandleFunc("/api/note/update", server.NoteUpdateHandler)
http.HandleFunc("/api/note/delete", server.NoteDeleteHandler)
http.HandleFunc("/api/tags", server.TagsHandler)
http.HandleFunc("/api/auth", server.AuthHandler)
http.HandleFunc("/api/is_auth", server.IsAuthHandler)
http.HandleFunc("/api/logout", server.LogoutHandler)
printDelimiter()
port := viper.GetString("server.port")
fmt.Printf("all set up! notebook server listening on :" + port + "...\n")
err = http.ListenAndServe(":"+port, nil)
log.Logger.Panic(err)
}