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main.go 6.80 KB
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张臻 authored 2021-02-26 16:45 . A xterm
package main
import (
"bufio"
"bytes"
"context"
"database/sql"
"flag"
"fmt"
"github.com/joho/godotenv"
"github.com/zhenorzz/goploy/core"
"github.com/zhenorzz/goploy/model"
"github.com/zhenorzz/goploy/route"
"github.com/zhenorzz/goploy/task"
"github.com/zhenorzz/goploy/utils"
"github.com/zhenorzz/goploy/ws"
"io/ioutil"
"log"
"net/http"
"os"
"os/exec"
"os/signal"
"path"
"strconv"
"syscall"
"time"
_ "github.com/go-sql-driver/mysql"
)
var (
help bool
version bool
s string
)
func init() {
flag.StringVar(&core.AssetDir, "asset-dir", "", "default: ./")
flag.StringVar(&s, "s", "", "stop")
flag.BoolVar(&help, "help", false, "list available subcommands and some concept guides")
flag.BoolVar(&version, "version", false, "show goploy version")
// 改变默认的 Usage
flag.Usage = usage
}
func usage() {
fmt.Fprintf(os.Stderr, `Options:
`)
flag.PrintDefaults()
}
func main() {
flag.Parse()
if help {
flag.Usage()
return
}
if version {
println(core.Version)
return
}
handleClientSignal()
println(`
______ __
/ ____/___ ____ / /___ __ __
/ / __/ __ \/ __ \/ / __ \/ / / /
/ /_/ / /_/ / /_/ / / /_/ / /_/ /
\____/\____/ .___/_/\____/\__, /
/_/ /____/ ` + core.Version + "\n")
install()
pid := strconv.Itoa(os.Getpid())
godotenv.Load(core.GetEnvFile())
ioutil.WriteFile(path.Join(core.GetAssetDir(), "goploy.pid"), []byte(pid), 0755)
println("Start at " + time.Now().String())
println("goploy -h for more help")
println("Current pid: " + pid)
println("Config Loaded: " + core.GetEnvFile())
println("Log: " + os.Getenv("LOG_PATH"))
println("Listen: " + os.Getenv("PORT"))
println("Running...")
core.CreateValidator()
model.Init()
ws.Init()
route.Init()
task.Init()
// server
srv := http.Server{
Addr: ":" + os.Getenv("PORT"),
}
core.Gwg.Add(1)
go func() {
defer core.Gwg.Done()
c := make(chan os.Signal, 1)
signal.Notify(c, os.Interrupt, syscall.SIGTERM)
println("Received the signal: " + (<-c).String())
println("Server is trying to shutdown, wait for a minute")
ctx, cancel := context.WithTimeout(context.Background(), 10*time.Second)
defer cancel()
if err := srv.Shutdown(ctx); err != nil {
println("Server shutdown failed, err: %v\n", err)
}
println("Server shutdown gracefully")
println("Task is trying to shutdown, wait for a minute")
if err := task.Shutdown(ctx); err != nil {
println("Task shutdown failed, err: %v\n", err)
}
println("Task shutdown gracefully")
}()
if err := srv.ListenAndServe(); err != nil && err != http.ErrServerClosed {
log.Fatal("ListenAndServe: ", err.Error())
}
os.Remove(path.Join(core.GetAssetDir(), "goploy.pid"))
println("Goroutine is trying to shutdown, wait for a minute")
core.Gwg.Wait()
println("Goroutine shutdown gracefully")
println("Success")
return
}
func install() {
_, err := os.Stat(core.GetEnvFile())
if err == nil || os.IsExist(err) {
println("The configuration file already exists, no need to reinstall (if you need to reinstall, please back up the database `goploy` first, delete the .env file, then restart.)")
return
}
println("Installation guide ↓")
var stdout bytes.Buffer
var stderr bytes.Buffer
cmd := exec.Command("rsync", "--version")
cmd.Stdout = &stdout
cmd.Stderr = &stderr
if err := cmd.Run(); err != nil {
println(err.Error() + ", detail: " + stderr.String())
panic("Please check if rsync is installed correctly, see https://rsync.samba.org/download.html")
}
git := utils.GIT{}
if err := git.Run("--version"); err != nil {
println(err.Error() + ", detail: " + git.Err.String())
panic("Please check if git is installed correctly, see https://git-scm.com/downloads")
}
inputReader := bufio.NewReader(os.Stdin)
println("Installation guidelines (Enter to confirm input)")
println("Please enter the mysql user:")
mysqlUser, err := inputReader.ReadString('\n')
if err != nil {
panic("There were errors reading, exiting program.")
}
mysqlUser = utils.ClearNewline(mysqlUser)
println("Please enter the mysql password:")
mysqlPassword, err := inputReader.ReadString('\n')
if err != nil {
panic("There were errors reading, exiting program.")
}
mysqlPassword = utils.ClearNewline(mysqlPassword)
if len(mysqlPassword) != 0 {
mysqlPassword = ":" + mysqlPassword
}
println("Please enter the mysql host(default 127.0.0.1, without port):")
mysqlHost, err := inputReader.ReadString('\n')
if err != nil {
panic("There were errors reading, exiting program.")
}
mysqlHost = utils.ClearNewline(mysqlHost)
if len(mysqlHost) == 0 {
mysqlHost = "127.0.0.1"
}
println("Please enter the mysql port(default 3306):")
mysqlPort, err := inputReader.ReadString('\n')
if err != nil {
panic("There were errors reading, exiting program.")
}
mysqlPort = utils.ClearNewline(mysqlPort)
if len(mysqlPort) == 0 {
mysqlPort = "3306"
}
println("Please enter the absolute path of the log directory(default /tmp/):")
logPath, err := inputReader.ReadString('\n')
if err != nil {
panic("There were errors reading, exiting program.")
}
logPath = utils.ClearNewline(logPath)
if len(logPath) == 0 {
logPath = "/tmp/"
}
println("Please enter the listening port(default 80):")
port, err := inputReader.ReadString('\n')
if err != nil {
panic("There were errors reading, exiting program.")
}
port = utils.ClearNewline(port)
if len(port) == 0 {
port = "80"
}
println("Start to install the database...")
db, err := sql.Open("mysql", fmt.Sprintf(
"%s%s@tcp(%s:%s)/?charset=utf8mb4,utf8\n",
mysqlUser,
mysqlPassword,
mysqlHost,
mysqlPort))
if err != nil {
panic(err)
}
defer db.Close()
if err := model.ImportSQL(db); err != nil {
panic(err)
}
println("Database installation is complete")
envContent := ""
envContent += "DB_TYPE=mysql\n"
envContent += fmt.Sprintf(
"DB_CONN=%s%s@tcp(%s:%s)/goploy?charset=utf8mb4,utf8\n",
mysqlUser,
mysqlPassword,
mysqlHost,
mysqlPort)
envContent += fmt.Sprintf("SIGN_KEY=%d\n", time.Now().Unix())
envContent += fmt.Sprintf("LOG_PATH=%s\n", logPath)
envContent += "ENV=production\n"
envContent += fmt.Sprintf("PORT=%s\n", port)
println("Start writing configuration file...")
file, err := os.Create(core.GetEnvFile())
if err != nil {
panic(err)
}
defer file.Close()
file.WriteString(envContent)
println("Write configuration file completed")
}
func handleClientSignal() {
switch s {
case "stop":
pidStr, err := ioutil.ReadFile(path.Join(core.GetAssetDir(), "goploy.pid"))
if err != nil {
log.Fatal("handle stop, ", err.Error(), ", may be the server not start")
}
pid, _ := strconv.Atoi(string(pidStr))
process, err := os.FindProcess(pid)
if err != nil {
log.Fatal("handle stop, ", err.Error(), ", may be the server not start")
}
err = process.Signal(syscall.SIGTERM)
if err != nil {
log.Fatal("handle stop, ", err.Error())
}
os.Exit(1)
}
}

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