Summarizing what I've learned from a few different sources. These commands should be run in Linux; there is likely a PowerShell equivalent but it was not forthcoming. (Speaking of sharing a repo across platforms, adding a .gitattributes with * text=auto to handle newline characters has worked well for me).
Let's say we want to move "dir/directory_src" of "repo_one" to "dir/directory_dest" of "repo_two".
First let's move all files from directory_src to directory_dest and remove all files outside of directory_dest.
Now let's copy the files into repo_two.
mkdir ~/repos cd ~/repos git clone https://servername/repo_one cd repo_one # intentionally prevent ourselves from pushing changes git remote rm origin # run the following and look at the resulting filenames to see if they look correct git ls-files -s | sed "s-\tdir/directory_src/-\tdir/directory_dest/-" # rewrite history so that "dir/directory_src" moves to "dir/directory_dest" git filter-branch --index-filter 'git ls-files -s | sed "s-\tdir/directory_src/-\tdir/directory_dest/-" | GIT_INDEX_FILE=$GIT_INDEX_FILE.new git update-index --index-info && mv "$GIT_INDEX_FILE.new" "$GIT_INDEX_FILE"' HEAD (move or delete the directory .git/refs/original) cd ~/repos/repo_one # run the following and look that files in dir/directory_dest aren't included git ls-files | egrep -v ^dir/directory_dest/ # rewrite history and remove all other files git filter-branch --tree-filter 'rm -rf $(git ls-files | egrep -v ^dir/directory_dest/)' -- --all
"repo_two" should now contain "dir/directory_dest" and all of its contents.
cd ~/repos git clone https://servername/repo_two cd repo_two git remote add from_repo_one ~/repos/repo_one git pull from_repo_one master git remote rm from_repo_one # after confirming that everything looks right, # run git push.
Note: I haven't tested these on filenames containing spaces or tabs.
Moving files from one Git repository to another
How can I move a directory in a Git repo