您可以使用递归的“他们的”策略选项：

git merge --strategy-option theirs

来自男子：

ours
    This option forces conflicting hunks to be auto-resolved cleanly by 
    favoring our version. Changes from the other tree that do not 
    conflict with our side are reflected to the merge result.

    This should not be confused with the ours merge strategy, which does 
    not even look at what the other tree contains at all. It discards 
    everything the other tree did, declaring our history contains all that
    happened in it.

theirs
    This is opposite of ours.

注意：正如手册页所说，“我们”的合并策略选项与“我们”合并策略非常不同。

您可以使用递归的“他们的”策略选项：

git merge --strategy-option theirs

来自男子：

ours
    This option forces conflicting hunks to be auto-resolved cleanly by 
    favoring our version. Changes from the other tree that do not 
    conflict with our side are reflected to the merge result.

    This should not be confused with the ours merge strategy, which does 
    not even look at what the other tree contains at all. It discards 
    everything the other tree did, declaring our history contains all that
    happened in it.

theirs
    This is opposite of ours.

注意：正如手册页所说，“我们”的合并策略选项与“我们”合并策略非常不同。

我发现我需要指定origin-main作为要合并到的分支。

git merge **origin main** --strategy-option theirs

在Emacs使用smerge模式中，为了使用我的或他们的冲突标记来解决所有冲突标记，我们可以定义：

(defun aj/smerge-keep-mine-all ()
  ""
  (interactive)
  (save-excursion
    (beginning-of-buffer)
    (while (ignore-errors 'user-error (progn (smerge-next) t))
      (smerge-keep-mine))))

(defun aj/smerge-keep-other-all ()
  ""
  (interactive)
  (save-excursion
    (beginning-of-buffer)
    (while (ignore-errors 'user-error (progn (smerge-next) t))
      (smerge-keep-other))))

git pull-X他们的答案可能会创建一个难看的合并提交，或者发出

错误：您对以下文件的本地更改将被合并覆盖：

如果您想简单地忽略对repo中文件的任何本地修改，例如，在始终应为源镜像的客户端上，请运行以下命令（用所需的分支替换master）：

git fetch && git reset --hard origin/master

它是如何工作的？git fetch执行git pull，但不合并。然后gitreset-hard使您的工作树与上一次提交相匹配。您对回购中文件的所有本地更改都将被丢弃，但新的本地文件将被保留。

我有一个长期运行的下一个版本分支，对开发时更改的文件、在两个分支的不同位置添加的文件等进行了大量删除。

我想将下一个版本分支的全部内容进行开发，所有内容都在一次巨大的合并提交中。

对我有效的上述命令组合是：

git merge -X theirs next-version
# lots of files left that were modified on develop but deleted on next-version
git checkout next-version .
# files removed, now add the deletions to the commit
git add .
# still have files that were added on develop; in my case they are all in web/
git rm -r web

这不是一个新的答案，只是结合了许多答案中的一部分，部分是为了保证你可能需要所有这些答案。