[bug] git.fetch_commit() throws an error when downloading sources to subfolder

[bkarasm]

Describe the bug

conan.tools.scm.Git.fetch_commit() method throws an error when folder argument is passed to Git class constructor:

def source(self):
    git = Git(self, folder="myFolder")
    git.fetch_commit(url, commit=self.conan_data["sources"]["commit"])

Error message:

ERROR: mypackage/1.2.3: Error in source() method, line 65
        git.fetch_commit(url, commit=self.conan_data["sources"]["commit"])
        FileNotFoundError: [Errno 2] No such file or directory: 'myFolder'

It seems that mkdir(self.folder) is missing in the body of fetch_commit() method - similarly as it is done in clone() method.

How to reproduce it

No response

[memsharded]

Hi @bkarasm

Thanks for your report.
It seems it could be a small UX improvement (what we call a fix, not a bugfix), and I think it should be very straightforward, would you like to do it yourself and contribute a PR?

[bkarasm]

Sure, I can give it a try.