使用JGit for http url克隆远程存储库失败

Question

这里的问题是，URL 被重定向，这在 JGit 中不处理。没有相同的错误报告，并且还提到它们已得到解决，但我仍然面临此问题。如果我做错了什么，请告诉我。

代码片段

private static Git cloneRepository(String url, String branch, String targetPath) throws IOException {
    Git result = null;
    try {
        CloneCommand cloneCommand = Git.cloneRepository().setCloneSubmodules(true)
                                        .setURI(url).setBranch(branch)
                                        .setCloneSubmodules(true)
                                        .setDirectory(new File(targetPath));
        result = cloneCommand.call();
    } catch (GitAPIException e) {
        e.printStackTrace();
    }
    return result;
}

public static void main(String[] args) throws IOException {
    cloneRepository("http://github.com/google/mathfu", "master", "D:/codebase");
    //cloneRepository("https://github.com/google/mathfu", "master", "D:/codebase");
}

运行代码后出现异常

org.eclipse.jgit.api.errors.TransportException: 'http://github.com/google/mathfu': 301 Moved Permanently
at org.eclipse.jgit.api.FetchCommand.call(FetchCommand.java:245)
at org.eclipse.jgit.api.CloneCommand.fetch(CloneCommand.java:293)
at org.eclipse.jgit.api.CloneCommand.call(CloneCommand.java:190)
at com.acellere.demo.GitDemo.App.cloneRepository(App.java:21)
at com.acellere.demo.GitDemo.App.main(App.java:31)
Caused by: org.eclipse.jgit.errors.TransportException: 'http://github.com/google/mathfu': 301 Moved Permanently
at org.eclipse.jgit.transport.TransportHttp.connect(TransportHttp.java:545)
at org.eclipse.jgit.transport.TransportHttp.openFetch(TransportHttp.java:326)
at org.eclipse.jgit.transport.FetchProcess.executeImp(FetchProcess.java:136)
at org.eclipse.jgit.transport.FetchProcess.execute(FetchProcess.java:122)
at org.eclipse.jgit.transport.Transport.fetch(Transport.java:1236)
at org.eclipse.jgit.api.FetchCommand.call(FetchCommand.java:234)
... 4 more

更改以下代码后

//cloneRepository("http://github.com/google/mathfu", "master", "D:/codebase");
cloneRepository("https://github.com/google/mathfu", "master", "D:/codebase");

例外

org.eclipse.jgit.api.errors.TransportException: 'http://github.com/google/fplutil.git': 301 Moved Permanently
at org.eclipse.jgit.api.FetchCommand.call(FetchCommand.java:245)
at org.eclipse.jgit.api.CloneCommand.fetch(CloneCommand.java:293)
at org.eclipse.jgit.api.CloneCommand.call(CloneCommand.java:190)
at org.eclipse.jgit.api.SubmoduleUpdateCommand.call(SubmoduleUpdateCommand.java:177)
at org.eclipse.jgit.api.CloneCommand.cloneSubmodules(CloneCommand.java:372)
at org.eclipse.jgit.api.CloneCommand.checkout(CloneCommand.java:353)
at org.eclipse.jgit.api.CloneCommand.call(CloneCommand.java:215)
at com.acellere.demo.GitDemo.App.cloneRepository(App.java:16)
at com.acellere.demo.GitDemo.App.main(App.java:25)
Caused by: org.eclipse.jgit.errors.TransportException: 'http://github.com/google/fplutil.git': 301 Moved Permanently
at org.eclipse.jgit.transport.TransportHttp.connect(TransportHttp.java:545)
at org.eclipse.jgit.transport.TransportHttp.openFetch(TransportHttp.java:326)
at org.eclipse.jgit.transport.FetchProcess.executeImp(FetchProcess.java:136)
at org.eclipse.jgit.transport.FetchProcess.execute(FetchProcess.java:122)
at org.eclipse.jgit.transport.Transport.fetch(Transport.java:1236)
at org.eclipse.jgit.api.FetchCommand.call(FetchCommand.java:234)
... 8 more

详情：

使用以下 JGit 版本 4.8.0.201706111038-r

也尝试了4.4.x.xxxxx版本

Answer 1

通过此更改：https://git.eclipse.org/r/#/c/46261/，即在 2017 年 2 月合并，JGit 应该能够遵循 HTTP 301 状态代码（永久移动）。

然而，CloneCommand似乎还不起作用。我可以验证您的代码段是否抛出TransportException。

相应的错误报告可以在这里找到:

https://bugs.eclipse.org/bugs/show_bug.cgi?id=465167·https://bugs.eclipse.org/bugs/show_bug.cgi?id=474094

我在指向这篇文章的错误报告中添加了一条评论。

更新2017-08-18：错误已修复，将在JGit 4.9中发布