🔨 start stop status

cmds/cmd.go

@@ -1,22 +1,103 @@
 package cmds
 
+import (
+	"io"
+	"io/ioutil"
+	"log"
+	"os"
+	"strconv"
+	"strings"
+	"syscall"
+)
+
+const (
+	statusURL = "https://otale.github.io/status/version.json"
+	pidFile   = "tale.pid"
+)
+
 // StartAction 启动 tale 博客
 func StartAction() error {
-	return nil
+	os.Remove(pidFile)
+	shell := "nohup java -Xms256m -Xmx256m -Dfile.encoding=UTF-8 -jar tale-letast.jar > /dev/null 2>&1 & echo $! > " + pidFile
+	_, _, _, err := StartCmd(shell)
+	if err != nil {
+		return err
+	}
+	log.Println("博客程序已经启动成功，可使用 log 命令查看日志")
+	return err
 }
 
 // StopAction 停止 tale 博客
 func StopAction() error {
+	dat, err := ioutil.ReadFile(pidFile)
+	if err != nil {
+		return err
+	}
+	log.Println("pid:", strings.TrimSpace(string(dat)))
+
+	pid, err := strconv.Atoi(strings.TrimSpace(string(dat)))
+	if err != nil {
+		return err
+	}
+	err = syscall.Kill(pid, syscall.Signal(2))
+	// _, err = KillPID(pid)
+	if err != nil {
+		log.Println("err", err)
+		return err
+	}
+	err = os.Remove(pidFile)
+	if err != nil {
+		return err
+	}
+	log.Println("博客程序已经停止")
 	return nil
 }
 
 // RestartAction 重启 tale 博客
 func RestartAction() error {
+	err := StopAction()
+	if err == nil {
+		StartAction()
+	}
+	return err
+}
+
+// StatusAction 查看博客运行状态
+func StatusAction() error {
+	// if _, err := os.Stat(pidFile); os.IsNotExist(err) {
+	// 	log.Panicln("博客已经停止运行")
+	// 	return nil
+	// }
+	dat, err := ioutil.ReadFile(pidFile)
+	if err != nil {
+		log.Println("博客已经停止运行")
+		return nil
+	}
+	pid := strings.TrimSpace(string(dat))
+	if pid == "" {
+		log.Println("博客已经停止运行")
+		return nil
+	}
+	pidInt, err := strconv.Atoi(strings.TrimSpace(string(dat)))
+	if err != nil {
+		return err
+	}
+	_, err = os.FindProcess(pidInt)
+	if err != nil {
+		return nil
+	}
+	log.Println("Tale 博客正在运行")
 	return nil
 }
 
 // LogAction 输出日志
 func LogAction() error {
+	_, stdout, stderr, err := StartCmd("tail -f logs/tale.log")
+	if err != nil {
+		return err
+	}
+	io.Copy(os.Stderr, stderr)
+	io.Copy(os.Stdout, stdout)
 	return nil
 }
 

cmds/utils.go

@@ -0,0 +1,32 @@
+package cmds
+
+import (
+	"io"
+	"os/exec"
+	"syscall"
+)
+
+func KillPID(pid int) (int, error) {
+	// https://stackoverflow.com/questions/22470193/why-wont-go-kill-a-child-process-correctly
+	err := syscall.Kill(pid, syscall.SIGKILL)
+	return pid, err
+}
+
+func StartCmd(cmd string) (*exec.Cmd, io.ReadCloser, io.ReadCloser, error) {
+	var err error
+	c := exec.Command("/bin/sh", "-c", cmd)
+	c.SysProcAttr = &syscall.SysProcAttr{Setsid: true}
+	stderr, err := c.StderrPipe()
+	if err != nil {
+		return nil, nil, nil, err
+	}
+	stdout, err := c.StdoutPipe()
+	if err != nil {
+		return nil, nil, nil, err
+	}
+	err = c.Start()
+	if err != nil {
+		return nil, nil, nil, err
+	}
+	return c, stdout, stderr, err
+}

cmds/version.go

@@ -0,0 +1,10 @@
+package cmds
+
+// Version tale版本信息
+type Version struct {
+	LatestVersion string   `json:"latest_version"`
+	PublishTime   int      `json:"publish_time"`
+	Hash          string   `json:"hash"`
+	ChangeLogs    []string `json:"change_logs"`
+	DownloadURL   string   `json:"download_url"`
+}

main.go

@@ -16,18 +16,18 @@ Github: https://github.com/otale/tale`
 func main() {
 	bin := comandante.New("tale-cli", banner)
 
-	// list command
 	startCmd := comandante.NewCommand("start", "启动 Tale 博客", cmds.StartAction)
 	bin.RegisterCommand(startCmd)
 
-	// list command
 	stopCmd := comandante.NewCommand("stop", "停止 Tale 博客", cmds.StopAction)
 	bin.RegisterCommand(stopCmd)
 
-	// list command
 	restartCmd := comandante.NewCommand("restart", "重启 Tale 博客", cmds.RestartAction)
 	bin.RegisterCommand(restartCmd)
 
+	statusCmd := comandante.NewCommand("status", "查看 Tale 博客运行状态", cmds.StatusAction)
+	bin.RegisterCommand(statusCmd)
+
 	logCmd := comandante.NewCommand("log", "查看 Tale 博客日志", cmds.LogAction)
 	bin.RegisterCommand(logCmd)
 

pack.sh

@@ -3,8 +3,6 @@
 rm -rf bin
 mkdir -p bin/linux_64
 mkdir -p bin/macOSX_64
-mkdir -p bin/windows_64
 
 CGO_ENABLED=0 GOOS=linux GOARCH=amd64 go build -ldflags '-w -s' -o bin/linux_64/tale-cli && upx bin/linux_64/tale-cli
 CGO_ENABLED=0 GOOS=darwin GOARCH=amd64 go build -ldflags '-w -s' -o bin/macOSX_64/tale-cli && upx bin/macOSX_64/tale-cli
-CGO_ENABLED=0 GOOS=windows GOARCH=amd64 go build -ldflags '-w -s' -o bin/windows_64/tale-cli.exe && upx bin/windows_64/tale-cli.exe