2012-05-17 211 views
8

如何克隆一個回購協議(與libgit2克隆一個git回購(深)

我想要做什麼git clone做但libgit2。我可能會問的是git clone真的深入。

這是我在做什麼至今:

  1. 初始化回購
  2. 調整配置文件中添加遠程
  3. 創建git_remote
  4. 下載一個打包文件
  5. 指數packfile和寫索引(給我們一個.idx文件)
  6. (編輯)寫所有不同的分支到磁盤。
  7. (編輯)以某種方式做git checkout

現在我不知道該怎麼做。我唯一的猜測是將.idx加載到git_index並使用git_repository_set_index,但是這並沒有顯示任何文件。

編輯

我測試運行在半克隆回購git checkout master,並做了工作。現在我只需要找出如何使用libgit2來做到這一點,似乎問題跟蹤器中有一些有用的信息。

編輯2

現在我將添加我當前的代碼中,希望有人總有一天會發現它很有用,在希望是快速啓動代碼,我從來沒有發現。注意:我在這裏使用Obj-CObjective-Git,但它主要是普通的c。

+ (GTRepository *)cloneFromRemoteURL:(NSURL *)remoteURL toLocalURL:(NSURL *)localURL 
{ 
// Let's suppose the URL looks like: https://github.com/libgit2/libgit2.git 
// Then we need to get a URL like this too: git://github.com/libgit2/libgit2.git 
// This may be a bit dodgy, but it will do for now. 
const char *gitURL = [remoteURL.absoluteString stringByReplacingOccurrencesOfString:@"https://github.com/" withString:@"git://github.com/"].UTF8String; 

//Setup 
int error; 
git_repository *repo 
git_config *cfg; 
git_remote *remote; 

NSURL *gitDirURL = [localURL URLByAppendingPathComponent:@".git"]; 

error = git_repository_open(&repo, gitDirURL.path.UTF8String); 
    if (error != GIT_SUCCESS) { 

    git_repository_init(&repo, gitDirURL.path.UTF8String, 1); 

    //Config 
    git_repository_config(&cfg, repo); 
    git_config_set_int32 (cfg, "core.repositoryformatversion", 0); 
    git_config_set_bool (cfg, "core.filemode", 1); 
    git_config_set_bool (cfg, "core.bare", 0); 
    git_config_set_bool (cfg, "core.logallrefupdates", 1); 
    git_config_set_bool (cfg, "core.ignorecase", 1); 
    git_config_set_string (cfg, "remote.origin.url", gitURL); 
    git_config_set_string (cfg, "remote.origin.fetch", "+refs/heads/*:refs/remotes/origin/*"); 
    git_config_set_string (cfg, "branch.master.remote", "origin"); 
    git_config_set_string (cfg, "branch.master.merge", "refs/heads/master"); 

    git_repository_set_workdir(repo, localURL.path.UTF8String); 

    error = git_remote_new(&remote, repo, "A remote", gitURL, "origin"); 

    git_repository_free(repo); 
    git_repository_open (&repo, localURL.path.UTF8String); 
} 



git_repository_config(&cfg, repo); 

// connect to repo 
error = git_remote_load(&remote, repo, "origin"); 

error = git_remote_connect(remote, GIT_DIR_FETCH); 
// get pack file 

git_off_t bytes; 
git_indexer_stats stats; 
error = git_remote_download(remote, &bytes, &stats); 

NSURL *packFolderURL = [localURL URLByAppendingPathComponent:@".git/objects/pack"]; 
NSFileManager *fileManager = [NSFileManager defaultManager]; 
NSArray *array = [fileManager contentsOfDirectoryAtURL:packFolderURL includingPropertiesForKeys:nil options:0 error:nil]; 
NSLog(@"Dictionary:%@",array); 
NSString *result; 
for (NSURL *url in array) { 
    if ([url.path rangeOfString:@".pack"].location != NSNotFound) { 
     result = url.path; 
    } 
} 
const char *packname = [result UTF8String]; 


// unpack pack file 
if (packname != NULL) 
{ 
    git_indexer *indexer; 
    git_indexer_stats stats2; 
    int error; 
    char hash[GIT_OID_HEXSZ + 1] = {0}; 

    error = git_indexer_new(&indexer, packname); 
    error = git_indexer_run(indexer, &stats2); 
    error = git_indexer_write(indexer); 

    // Get the packfile's hash (which should become it's filename) 
    git_oid_fmt(hash, git_indexer_hash(indexer)); 

    NSString *hashStr = [NSString stringWithCString:hash encoding:NSUTF8StringEncoding]; 
    hashStr = [NSString stringWithFormat:@"pack-%@.idx",hashStr]; 
    const char *indexPath = [hashStr UTF8String]; 

    puts(hash); 
    git_index *index; 
    git_index_open(&index, indexPath); 
    git_index_read(index); 
    git_repository_set_index(repo, index); 


    git_indexer_free(indexer); 
    git_remote_update_tips(remote, update_cb2); //No idea what it does, but it seems like it's important… It does make the branches appear in .git/refs/remotes/origin 

} 

//不知怎的,在這裏做

return [GTRepository repositoryWithURL:localURL error:nil]; 

} 
+0

有趣的反饋。這應該以某種方式集成在'gitlib2'庫中。 – VonC

回答