阶段性提交

internal/installers/ssh_client.go

@@ -0,0 +1,149 @@
+package installers
+
+import (
+	"bytes"
+	"github.com/pkg/sftp"
+	"golang.org/x/crypto/ssh"
+	"io"
+	"net"
+	"os"
+	"strings"
+)
+
+type SSHClient struct {
+	raw  *ssh.Client
+	sftp *sftp.Client
+}
+
+func NewSSHClient(raw *ssh.Client) (*SSHClient, error) {
+	c := &SSHClient{
+		raw: raw,
+	}
+
+	sftpClient, err := sftp.NewClient(raw)
+	if err != nil {
+		_ = c.Close()
+		return nil, err
+	}
+	c.sftp = sftpClient
+
+	return c, nil
+}
+
+// 执行shell命令
+func (this *SSHClient) Exec(cmd string) (stdout string, stderr string, err error) {
+	session, err := this.raw.NewSession()
+	if err != nil {
+		return "", "", err
+	}
+	defer func() {
+		_ = session.Close()
+	}()
+
+	stdoutBuf := bytes.NewBuffer([]byte{})
+	stderrBuf := bytes.NewBuffer([]byte{})
+	session.Stdout = stdoutBuf
+	session.Stderr = stderrBuf
+	err = session.Run(cmd)
+	if err != nil {
+		return stdoutBuf.String(), stderrBuf.String(), err
+	}
+	return strings.TrimRight(stdoutBuf.String(), "\n"), stderrBuf.String(), nil
+}
+
+func (this *SSHClient) Listen(network string, addr string) (net.Listener, error) {
+	return this.raw.Listen(network, addr)
+}
+
+func (this *SSHClient) Dial(network string, addr string) (net.Conn, error) {
+	return this.raw.Dial(network, addr)
+}
+
+func (this *SSHClient) Close() error {
+	if this.sftp != nil {
+		_ = this.sftp.Close()
+	}
+	return this.raw.Close()
+}
+
+func (this *SSHClient) OpenFile(path string, flags int) (*sftp.File, error) {
+	return this.sftp.OpenFile(path, flags)
+}
+
+func (this *SSHClient) Stat(path string) (os.FileInfo, error) {
+	return this.sftp.Stat(path)
+}
+
+func (this *SSHClient) Mkdir(path string) error {
+	return this.sftp.Mkdir(path)
+}
+
+func (this *SSHClient) MkdirAll(path string) error {
+	return this.sftp.MkdirAll(path)
+}
+
+func (this *SSHClient) Chmod(path string, mode os.FileMode) error {
+	return this.sftp.Chmod(path, mode)
+}
+
+// 拷贝文件
+func (this *SSHClient) Copy(localPath string, remotePath string, mode os.FileMode) error {
+	localFp, err := os.Open(localPath)
+	if err != nil {
+		return err
+	}
+	defer func() {
+		_ = localFp.Close()
+	}()
+	remoteFp, err := this.sftp.OpenFile(remotePath, os.O_CREATE|os.O_TRUNC|os.O_WRONLY)
+	if err != nil {
+		return err
+	}
+	defer func() {
+		_ = remoteFp.Close()
+	}()
+	_, err = io.Copy(remoteFp, localFp)
+	if err != nil {
+		return err
+	}
+
+	return this.Chmod(remotePath, mode)
+}
+
+// 获取新Session
+func (this *SSHClient) NewSession() (*ssh.Session, error) {
+	return this.raw.NewSession()
+}
+
+// 读取文件内容
+func (this *SSHClient) ReadFile(path string) ([]byte, error) {
+	fp, err := this.sftp.OpenFile(path, 0444)
+	if err != nil {
+		return nil, err
+	}
+	defer func() {
+		_ = fp.Close()
+	}()
+
+	buffer := bytes.NewBuffer([]byte{})
+	_, err = io.Copy(buffer, fp)
+	if err != nil {
+		return nil, err
+	}
+
+	return buffer.Bytes(), nil
+}
+
+// 写入文件内容
+func (this *SSHClient) WriteFile(path string, data []byte) (n int, err error) {
+	fp, err := this.sftp.OpenFile(path, os.O_CREATE|os.O_TRUNC|os.O_WRONLY)
+	if err != nil {
+		return 0, err
+	}
+	defer func() {
+		_ = fp.Close()
+	}()
+
+	n, err = fp.Write(data)
+	return
+}