如何使用JGit获取提交的整个Java文件？

Question

In a commit, there are some java files have been revised. For the each revised file in a commit, I want to get the whole file content of the revised file and the previous file (before revised). Any ideas? Thanks.

Answer 1

Basically you do a RevWalk with the commit-id and then a TreeWalk to get the actual file contents.

You can take a look at the example at https://github.com/centic9/jgit-cookbook/blob/master/src/main/java/org/dstadler/jgit/api/ReadFileFromCommit.java in my jgit-cookbook. It shows how to fetch a file for a specific commit. Just call it with your filename instead of README.md once for each of the two commit-ish instead of HEAD to get the content of the two files.