通过 python 获取 git 获取输出到文件

Question

我正在尝试通过 python 将 git 提取 输出保存到文件，使用：

subprocess.check_output(["git", "fetch", "origin", ">>", "C:/bitbucket_backup/backup.log", "2>&1"], cwd='C:/bitbucket_backup/loopx')

但我相信 subprocess.check_output args 中缺少某些内容，因为在添加 >> C:/bitbucket_backup/backup.log 2> 时&1 我收到这个错误：

Traceback (most recent call last):
  File "<pyshell#28>", line 1, in <module>
     subprocess.check_output(["git", "fetch", "origin", ">>", "C://bitbucket_backup//backup.log", "2>&1"], cwd='C://bitbucket_backup//loopx')
  File "C:\Users\fabio\AppData\Local\Programs\Python\Python36-32\lib\subprocess.py", line 336, in check_output
     **kwargs).stdout
  File "C:\Users\fabio\AppData\Local\Programs\Python\Python36-32\lib\subprocess.py", line 418, in run
     output=stdout, stderr=stderr)
subprocess.CalledProcessError: Command '['git', 'fetch', 'origin', '>>', 'C://bitbucket_backup//backup.log', '2>&1']' returned non-zero exit status 128.

Answer 1

Quickfix：启用 shell 功能来处理重定向参数：

subprocess.check_output(["git", "fetch", "origin", ">>", "C:/bitbucket_backup/backup.log", "2>&1"], cwd='C:/bitbucket_backup/loopx', shell=True)

但这真的很脏，因为 python 能够很好地做到这一点：

output = subprocess.check_output(["git", "fetch", "origin"], stderr=subprocess.STDOUT, cwd='C:/bitbucket_backup/loopx')
with open("C:/bitbucket_backup/backup.log","ab") as f:  # append to file
    f.write(output)

就是说，如果您要重写 python 中的所有 git 命令，也许您应该使用 git python API 之类的 GitPython 例如。

通过 python 获取 git 获取输出到文件

Getting git fetch output to file through python

python

git

subprocess

git-fetch

python-3.x