如何使用gitpython从特定的git提交中获取文件数据

Question

我正在尝试使用gitpython python-module从特定的提交中获取文件。

我能够从最近一次提交中获得文件(包含内容)。但是，我想从以前的git提交中获取文件(包含内容)。

repo = git.Repo("G:\myrespo")
obj = repo.git.get_object_data(x.a_blob)

我怎么才能得到它呢？

Answer 1

以下是从特定提交中获取文件的一种方法：

import io

repo = Repo('G:\myrespo')

# Retrieve specific commit from repo
# The revision specifier must be one of the specifiers defined in
# https://git-scm.com/docs/git-rev-parse#_specifying_revisions
# In this example, we'll use a SHA-1

commit = repo.commit('7ba4789adf73c0555fbffad3b62d61e411c3b1af')

# Retrieve a file from the commit tree
# You can use the path helper to get the file by filename 

targetfile = commit.tree / 'some_file.md'

# Retrieve contents of targetfile

with io.BytesIO(targetfile.data_stream.read()) as f:
    print(f.read().decode('utf-8'))

targetfile是一个标准的GitPython Object

>>> targetfile.name
'some_file.md'
>>> targetfile.type
'blob'

Answer 2

您还可以使用PyDriller (GitPython的包装器)，这使得它更容易：

for commit in RepositoryMining("repo", single="commit_hash").traverse_commits():
    # list of modified files of the commit
    commit.modifications