Code diffs and commit messages from top1000-2000 Java projects in GitHub

This dataset contains pairs <code changes, commit message> from top 1000-2000 Java projects in GitHub via GitHub Developer API.

The structure of files is as follows:

<repository-id>.<repository-name>/ # Each directory contains commits of one project.

&lt;commit-id&gt;.&lt;commit-sha&gt;/ # Each directory contains one commit information, and<br>
# the commit-sha is the primary key of this commit in GitHub. <br>
# The children in this directory have 3 types: the file<br>
# "commit_msg", multiple directories "&lt;filename&gt;", and the file<br>
# "error".

commit_msg # This file contains one line, representing the commit<br>
# message.
&lt;filename&gt;/ # The name of this directory is the changed file name.

patch # The code diffs of this &lt;filename&gt;, describing<br>
# which lines are added and which lines are<br>
# removed with some same lines context.

&lt;filename&gt;/

patch

error # This file contains the error message when crawling<br>
# from GitHub. If this file exists, the directories<br>
# &lt;filename&gt; will not exist.

本数据集包含通过GitHub开发者API（GitHub Developer API）获取的GitHub平台上排名1000至2000的Java项目的<代码变更，提交消息>配对样本。

其文件结构如下：

<repository-id>.<repository-name>/ # 每个目录对应一个项目的全部提交记录。

<commit-id>.<commit-sha>/ # 每个目录包含一条提交的详细信息，其中commit-sha为该提交在GitHub中的主键。该目录下的子项分为三类：文件commit_msg、多个名为<filename>的目录，以及文件error。

commit_msg # 该文件仅包含一行内容，即为该提交的提交消息。
<filename>/ # 该目录的名称为发生变更的文件名。

patch # 该文件存储该变更文件的代码差异，描述了新增、删除的代码行及部分上下文一致的代码行。

<filename>/

patch

error # 该文件存储从GitHub爬取数据时产生的错误信息。若存在该文件，则不会存在名为<filename>的目录。