使用jgit 操作仓库：初始化，克隆远程仓库，添加缓存，本地代码提交，代码同步到远程仓库

使用场景，将生成的文件自动提交到gitlab.

添加jgit依赖

<!--jGit-->
<dependency>
  <groupId>org.eclipse.jgit</groupId>
  <artifactId>org.eclipse.jgit</artifactId>
  <version>4.4.1.201607150455-r</version>
</dependency>

 

定义仓库路径

public String remotePath = "http://user@10.1.2.1:8080/project.git";//远程库路径
public String localPath = "D:\\project\\";//下载已有仓库到本地路径

　　

 仓库初始化

 /**
  * 仓库初始化
  */
public static void gitInit() throws IOException{
        Repository newlyCreatedRepo = FileRepositoryBuilder.create(new File(localPath+"/.git"));
        if(newlyCreatedRepo!=null){
            newlyCreatedRepo.create();
        }
        System.err.println("git init success");
}

　　

克隆远程仓库

/**
 * 克隆远程仓库
 * @param remotePath:"url"
 * @param branch：master
 * @param userName："userName"
 * @param passWord："password"
 * @throws GitAPIException
 */
public static void gitClone(String remotePath,String branch,String userName,String passWord) throws GitAPIException {
    //设置远程服务器上的用户名和密码
    UsernamePasswordCredentialsProvider usernamePasswordCredentialsProvider =new
            UsernamePasswordCredentialsProvider(userName,passWord);

    //克隆代码库命令
    CloneCommand cloneCommand = Git.cloneRepository();

    Git git= cloneCommand.setURI(remotePath) //设置远程URI
            .setBranch(branch) //设置clone下来的分支
            .setDirectory(new File(localPath)) //设置下载存放路径
            .setCredentialsProvider(usernamePasswordCredentialsProvider) //设置权限验证
            .call();
    System.err.println("git clone success");
}

　　

添加到缓存区

/**
 * 添加到缓存区：对于删除的文件jgit添加失败
 * @throws IOException
 * @throws GitAPIException
 */
public static void gitAdd() throws IOException, GitAPIException {
    Git git = new Git(new FileRepository(localPath + "/.git"));
    git.add().addFilepattern(".").call();
    System.err.println("git add success");
}

　　

本地代码提交

/**
 * 本地代码提交
 * @param msg:提交信息
 * @throws IOException
 * @throws GitAPIException
 */
public static void gitCommit(String msg) throws IOException, GitAPIException {
    Git git = new Git(new FileRepository(localPath + "/.git"));
    //全部提交
    git.commit().setAll(true).setMessage(msg).call();
    System.err.println("git commit success");
}

　　

本地代码同步到远程仓库

/**
 * push本地代码到远程仓库
 * @param branch：master
 * @param userName："userName"
 * @param passWord："password"
 * @throws IOException
 * @throws GitAPIException
 */
public static void gitPush(String branch,String userName,String passWord) throws IOException, GitAPIException {
    UsernamePasswordCredentialsProvider usernamePasswordCredentialsProvider =new
               UsernamePasswordCredentialsProvider(userName,passWord);
    //git仓库地址
    Git git = new Git(new FileRepository(localPath+"/.git"));

    //检查新建的分支是否已经存在，如果存在则将已存在的分支强制删除并新建一个分支
    List<Ref> refs = git.branchList().call();
    for (Ref ref : refs) {
        if (ref.getName().equals(branch)) {
            System.out.println("Removing branch before");
            git.branchDelete().setBranchNames(branch).setForce(true)
                        .call();
            break;
        }
    }
    //新建分支
    Ref ref = git.branchCreate().setName(branch).call();
    //推送到远程
     git.push().add(ref).setCredentialsProvider(usernamePasswordCredentialsProvider).call();

    /*git.push().setRemote("origin/"+branch)
                .setCredentialsProvider(usernamePasswordCredentialsProvider).call();*/
    System.err.println("git push success");
}

　　

删除服务器文件

/**
 * 递归删除本地服务器文件
 * @param files
 */
public static void filesDelete(File[] files){
    if(files!=null&&files.length>0){
        for (File file:files) {
            //递归删除文件
            File[] childFiles = file.listFiles();
            filesDelete(childFiles);
            file.delete();
            System.err.println(file.getName()+" delete success");
        }
    }
}

　　

主方法调用

public static void main(String[] args){
    String remotePath = "url";
    String branch = "branch";
    String userName = "userName";
    String passWord = "password";

    String msg = "";
    try {
        filesDelete(new File(localPath).listFiles());
        //gitInit();
        gitClone(remotePath,branch,userName,passWord);
        //添加要提交的新文件
        /*gitAdd();
        gitCommit(msg);
        filesDelete(new File(localPath).listFiles());*/
        gitPush("jgittest",userName,passWord);
    } catch (GitAPIException e) {
        e.printStackTrace();
    } catch (IOException e) {
        e.printStackTrace();
    }
}

　　

参考文献：

https://www.cnblogs.com/songshu120/p/6180747.html

https://blog.csdn.net/gloomy_114/article/details/53129740