增加执行命令并实时输出日志函数

analysis-tool-sdk-golang/util/cmd.go

@@ -0,0 +1,56 @@
+package util
+
+import (
+	"bufio"
+	"os/exec"
+)
+
+// ExecAndLog 执行命令并实时输出日志
+func ExecAndLog(name string, args []string) error {
+	cmd := exec.Command(name, args...)
+	Info("will execute: %s", cmd.String())
+
+	outScanner, errScanner, err := createScanner(cmd)
+	if err != nil {
+		return err
+	}
+
+	if err := cmd.Start(); err != nil {
+		return err
+	}
+
+	go func() {
+		for errScanner.Scan() {
+			Info(errScanner.Text() + "\n")
+		}
+	}()
+
+	go func() {
+		for outScanner.Scan() {
+			Info(outScanner.Text() + "\n")
+		}
+	}()
+
+	if err := cmd.Wait(); err != nil {
+		return err
+	}
+	return nil
+}
+
+func createScanner(cmd *exec.Cmd) (*bufio.Scanner, *bufio.Scanner, error) {
+	outPipe, err := cmd.StdoutPipe()
+	if err != nil {
+		return nil, nil, err
+	}
+	errPipe, err := cmd.StderrPipe()
+	if err != nil {
+		return nil, nil, err
+	}
+
+	outScanner := bufio.NewScanner(outPipe)
+	outScanner.Split(bufio.ScanLines)
+	errScanner := bufio.NewScanner(errPipe)
+	errScanner.Split(bufio.ScanLines)
+
+	return outScanner, errScanner, nil
+}