如何使用libgit2提交git存储库?

时间:2013-03-29 21:09:08

标签: c++ c libgit2

由于没有使用libgit2 as far as I can tell在磁盘上使用文件来创建提交的复制粘贴示例,我认为我应该添加一个。

不要忘记libgit2目前处于全面开发阶段(2013年3月),因此请查看官方文档和源代码,因为每天都会添加新功能:

1 个答案:

答案 0 :(得分:2)

bool addGitCommit ( 
  git_repository * repo, git_signature * sign, 
  const char * content, int content_sz,
  const char * message )
{
  int rc;              /* return code for git_ functions */
  git_oid oid_blob;    /* the SHA1 for our blob in the tree */
  git_oid oid_tree;    /* the SHA1 for our tree in the commit */
  git_oid oid_commit;  /* the SHA1 for our initial commit */
  git_blob * blob;     /* our blob in the tree */
  git_tree * tree_cmt; /* our tree in the commit */
  git_treebuilder * tree_bld;  /* tree builder */
  bool b = false;

  /* create a blob from our buffer */
  rc = git_blob_create_frombuffer( 
        &oid_blob,
        repo, 
        content, 
        content_sz );
  if ( rc == 0 ) { /* blob created */
    rc = git_blob_lookup( &blob, repo, &oid_blob );
    if ( rc == 0 ) { /* blob created and found */
      rc = git_treebuilder_create( &tree_bld, NULL );
      if ( rc == 0 ) { /* a new tree builder created */
        rc = git_treebuilder_insert( 
              NULL, 
              tree_bld, 
              "name-of-the-file.txt", 
              &oid_blob, 
              GIT_FILEMODE_BLOB );
        if ( rc == 0 ) { /* blob inserted in tree */
          rc = git_treebuilder_write( 
                &oid_tree, 
                repo, 
                tree_bld );
          if ( rc == 0 ) { /* the tree was written to the database */
            rc = git_tree_lookup(
                  &tree_cmt, repo, &oid_tree );
            if ( rc == 0 ) { /*we've got the tree pointer */  
              rc = git_commit_create(
                    &oid_commit, repo, "HEAD",
                    sign, sign, /* same author and commiter */
                    NULL, /* default UTF-8 encoding */
                    message,
                    tree_cmt, 0, NULL );
              if ( rc == 0 ) {
                b = true;
              }
              git_tree_free( tree_cmt );
            }
          }
        }
        git_treebuilder_free( tree_bld );
      }
      git_blob_free( blob );
    }
  }
  return b;
}

存储库来自git_repository_init()git_repository_open()。 签名来自git_signature_now()git_signature_new()

该函数更新当前分支的HEAD。

如果在执行该功能后执行git status,您会注意到文件name-of-the-file.txt显示为已删除。这是因为该函数不会创建实际文件,只会创建git数据库中的条目。

另外,请注意git_commit_create()的最后一个论点。 0和NULL表示这是第一个(根)提交。对于所有其他应该至少应该指定父提交,可以使用git_commit_lookup()获得。

<小时/> 我只是在学习这些东西。如果您了解更多,请改进此答案。