如何使用libgit2从git中获取？

Question

我读fetch.c并尝试更新本地存储库中的内容（就像“git fetch”），但git_remote_connect返回-1。

• err:Unexpected HTTP status code: 401

在哪里设置CRED当连接到远程？代码有什么问题？谢谢。

(IBAction)Fetch:(id)sender { 
git_remote *remote = NULL; 
const git_error *err = NULL; 
int ret = -1; 
bool invoked = false; 

git_repository *repo = NULL; 
NSArray *str = NSSearchPathForDirectoriesInDomains(NSDocumentDirectory, NSUserDomainMask, YES); 
NSString *docPath = [str objectAtIndex:0]; 
NSString *localPath = [docPath stringByAppendingPathComponent:@"abc/.git"]; 
NSLog(@"localPath:%@", localPath); 
ret = git_repository_open(&repo, [localPath UTF8String]); 
NSLog(@"git_repository_open ret:%d",ret); 
err = giterr_last(); 
if(err == NULL) 
{ 
    NSLog(@"NULL"); 
} 
else 
{ 
    NSLog(@"err:%s", err->message); 
} 

ret = git_remote_load(&remote, repo, "origin"); 
NSLog(@"git_remote_load ret:%d", ret); 
err = giterr_last(); 
if(err == NULL) 
{ 
    NSLog(@"No error"); 
} 
else 
{ 
    NSLog(@"err:%s", err->message); 
    return; 
} 
ret = git_remote_load(&remote, repo, "origin"); 
NSLog(@"git_remote_load ret:%d", ret); 
ret = git_remote_connect(remote, GIT_DIRECTION_FETCH); 
NSLog(@"git_remote_connect ret:%d", ret); 
err = giterr_last(); 
if(err == NULL) 
{ 
    NSLog(@"No error"); 
} 
else 
{ 
    NSLog(@"err:%s", err->message); 
    return; 
} 
ret = git_remote_download(remote, &transferProgressCallback, &invoked); 
NSLog(@"git_remote_download ret:%d", ret); 
err = giterr_last(); 
if(err == NULL) 
{ 
    NSLog(@"No error"); 
} 
else 
{ 
    NSLog(@"err:%s", err->message); 
    return; 
} 
ret = git_remote_update_tips(remote); 
NSLog(@"git_remote_update_tips ret:%d", ret); 
err = giterr_last(); 
if(err == NULL) 
{ 
    NSLog(@"No error"); 
} 
else 
{ 
    NSLog(@"err:%s", err->message); 
    return; 
} 
} 

这里是远程配置

[remote "origin"] 
    url = http://remote_path/git/share.git 
    fetch = +refs/heads/*:refs/remotes/origin/* 
[branch "master"] 
    remote = origin 
    merge = refs/heads/master 

Answer 1

我发现下面的函数来设置CRED的远程采集

bool invoked = false; 
git_remote_set_cred_acquire_cb(remote, cred_acquire_cb, &invoked); 

cred_acquire_cb的代码如下：

static int cred_acquire_cb(git_cred **cred, const char *url, unsigned int allowed_types, void *payload) 
{ 
    char *_remote_user = "user"; 
    char *_remote_pass = "pass"; 

    *((bool*)payload) = true; 

    if ((GIT_CREDTYPE_USERPASS_PLAINTEXT & allowed_types) == 0 || 
     git_cred_userpass_plaintext_new(cred, _remote_user, _remote_pass) < 0) 
     return -1; 

    return 0; 
}