我发现自己和你遇到了同样的问题，并且发现没有标准的方法可以做到这一点。然而，环顾四周，我发现了一种有助于做到这一点的策略，并在此基础上创建了一个 power shell 脚本。我不记得出处，否则我会给他们功劳。我会解释它，但我更容易看到脚本和评论。
您可以使用此脚本，或者如果不使用 windows/powershell，则基于它进行制作。好消息是，一旦您为每个子模块拥有了自己的 git 存储库，如果出现故障，只需删除新的“主”git 存储库、更改脚本并再次运行它就真的很快/很容易，因为这一切当地的。
请注意，有些情况未处理，例如当一个子模块具有与另一个子模块相同的文件夹时（因此，如果您有一个名为 BIN 的子模块，然后您的其他子模块有一个 BIN 子文件夹，它将失败）。在开始之前，请确保您的所有子模块 git repos 都是最新的！
您可以在此 gist 中查看脚本：
Gist Script
如果由于某种原因主旨不正确，我也在这里添加了它（尽管可读性差很多）
$GitReposLocation = "path\to\individual\git\repos"; #1 git repo for each module (you svn cloned each one using std layout)
$MasterGitRepoLocation = "path\to\masterRepo"; #the path where you want your main repo that contains all the modules
git reset --hard;
write-host Creating folder $MasterGitRepoLocation -foregroundcolor "green";
mkdir $MasterGitRepoLocation;
write-host Moving to folder $MasterGitRepoLocation -foregroundcolor "green";
cd $MasterGitRepoLocation;
write-host Creating Git Repository -foregroundcolor "cyan";
git init;
#this is hacky, but we need to have an initial commit
"" > root;
git add root;
write-host Creating root node -foregroundcolor "cyan";
git commit -m "Initial commit to create parent root.";
#we are going to be moving files around, and don't want to move the files we already got in our MasterRepo root/workspace
$NotMoveThesFiles = @();
dir |%{$NotMoveThesFiles+=@($_.FullName) };
$repos = @();
# you should add a repo here if for some reasong you don't want to process that one.
# $repos+=@("SomeRepo");
dir -Path $GitReposLocation -Directory |Where-object{ $repos -NotContains $_.Name }|%{$repos+=@($_.Name) };
# for-each repo....
$repos|%{
$SubRepoName = $_;
write-host Processing GitRepo $SubRepoName -foregroundcolor "green";
$Remote = "remote"+$SubRepoName;
#add this git repo (of a module) as a remote of our main repo
write-host Adding reference to $SubRepoName as remote repo -foregroundcolor "cyan";
git remote add -f $Remote $GitReposLocation\$SubRepoName;
#Merge that sub repo into the main repo. The only problem? It will copy that repo's workspace
#directly into our main repo Root folder
write-host Merging remote$SubRepoName/master into master -foregroundcolor "cyan";
git merge remote$SubRepoName/master;
#so now we are going to create a folder with the name of this module (subRepo)
#and move everything that is in the Master's root folder to that folder, except of course
#things that we already had in the root folder before the merge. (in the NotMoveTheseFiles array)
write-host Moving files got from $SubRepoName to a subdir called $SubRepoName -foregroundcolor "green";
#create folder folr the module
mkdir $SubRepoName;
#add these new folde to the list of things we don't want to move into it.
$NotMoveThesFiles+=@($SubRepoName);
#copy all files not in the NotMoveTheseFiles array into the newly created folder.
dir |where-object {$NotMoveThesFiles -NotContains $_} |%{git mv $_ $SubRepoName};
#commit the change where we moved all these files around.
$CommitMessage = "Moving files got from " + $SubRepoName + " to a subdir called $SubRepoName"
git commit -m $CommitMessage;
}