使用修补程序标志签出

完成您所描述内容的一个简单方法是通过签出补丁。修改我在顶部提供的四个变量。脚本执行以下操作：

克隆包含提交的分支（源分支）签出要将文件移动到的分支（目标分支）在所需的提交版本签出源分支，提供补丁标志和文件的相对位置作为参数。添加、提交、推送

对我来说，这一直是最简单的方法。步骤#3确实创建了一个交互式shell，但如果你想破坏目标，你可以默认整个选项。

source_branch=branch_with_file_you_want
destination_branch=file_go_here
rev=757c47d4
relative_file_path=structures/serializers/node.py
message="Patching a file from $source_branch to $destination_branch"

git clone https://github.com/yourepo/app.git -b $source_branch $source_branch
cd $source_branch
git checkout $destination_branch
git checkout $rev --patch $source_branch $relative_file_path
git add $relative_file_path
git commit -m "$message"
git push

如果您是远程GitLab，如果您需要MR，可以使用git push-o merge_request.create

我会选择一切，然后这样做：

git reset --soft HEAD^

然后我会还原我不想要的更改，然后进行新的提交。

使用gitmerge--squashbranch_name，这将从其他分支获取所有更改，并为您准备提交。现在删除所有不需要的更改并保留所需的更改。git不会知道有合并。

将分支合并为新分支（挤压）并删除不需要的文件：

git checkout master
git checkout -b <branch>
git merge --squash <source-branch-with-many-commits>
git reset HEAD <not-needed-file-1>
git checkout -- <not-needed-file-1>
git reset HEAD <not-needed-file-2>
git checkout -- <not-needed-file-2>
git commit

与Jefromi的答案相比，这种方法的优势可能在于您不必记住git重置的哪个行为是正确的：）

 # Create a branch to throw away, on which we'll do the cherry-pick:
 git checkout -b to-discard

 # Do the cherry-pick:
 git cherry-pick stuff

 # Switch back to the branch you were previously on:
 git checkout -

 # Update the working tree and the index with the versions of A and B
 # from the to-discard branch:
 git checkout to-discard -- A B

 # Commit those changes:
 git commit -m "Cherry-picked changes to A and B from [stuff]"

 # Delete the temporary branch:
 git branch -D to-discard

我会使用cherry-pick-n（--no-commit）来完成，它允许您在提交之前检查（和修改）结果：

git cherry-pick -n <commit>

# unstage modifications you don't want to keep, and remove the
# modifications from the work tree as well.
# this does work recursively!
git checkout HEAD <path>

# commit; the message will have been stored for you by cherry-pick
git commit

如果绝大多数修改都是您不想要的，那么您可以重新设置所有内容，然后添加您想要的内容，而不是检查各个路径（中间步骤）：

# unstage everything
git reset HEAD

# stage the modifications you do want
git add <path>

# make the work tree match the index
# (do this from the top level of the repo)
git checkout .