正确的方法是使用git-remote-dropbox: https://github.com/anishathalye/git-remote-dropbox

在Dropbox中创建自己的裸回购会导致很多问题。Anish(库的创造者)解释得很好:

The root cause of these problems is that the Dropbox desktop client is designed for syncing files, not Git repositories. Without special handling for Git repositories, it doesn’t maintain the same guarantees as Git. Operations on the remote repository are no longer atomic, and concurrent operations or unlucky timing with synchronization can result in a corrupted repository. Traditional Git remotes run code on the server side to make this work properly, but we can’t do that. Solution: It is possible to solve this properly. It is possible to use Git with Dropbox and have the same safety and consistency guarantees as a traditional Git remote, even when there are multiple users and concurrent operations! For a user, it’s as simple as using git-remote-dropbox, a Git remote helper that acts as a transparent bidirectional bridge between Git and Dropbox and maintains all the guarantees of a traditional Git remote. It’s even safe to use with shared folders, so it can be used for collaboration (yay unlimited private repos with unlimited collaborators!). With the remote helper, it’s possible to use Dropbox as a Git remote and continue using all the regular Git commands like git clone, git pull, and git push, and everything will just work as expected.

我不想把我所有的项目都放在一个Git存储库下，也不想为每个项目运行这些代码，所以我编写了一个Bash脚本来自动化这个过程。你可以在一个或多个目录上使用它——所以它可以为你完成这篇文章中的代码，也可以一次在多个项目上完成。

#!/bin/sh
# Script by Eli Delventhal
# Creates Git projects for file folders by making the origin Dropbox. You will need to install Dropbox for this to work.

# Not enough parameters, show help.
if [ $# -lt 1 ] ; then

cat<<HELP
projects_to_git.sh -- Takes a project folder and creates a Git repository for it on Dropbox

USAGE:
    ./projects_to_git.sh file1 file2 ..

EXAMPLES:
    ./projects_to_git.sh path/to/MyProjectDir
        Creates a git project called MyProjectDir on Dropbox

    ./projects_to_git.sh path/to/workspace/*
        Creates a git project on Dropbox for every folder contained within the workspace directory, where the project name matches the folder name

HELP
    exit 0
fi

# We have enough parameters, so let's actually do this thing.

START_DIR=$(pwd)

# Make sure we have a connection to Dropbox
cd ~
if [ -s 'Dropbox' ] ; then
    echo "Found Dropbox directory."
    cd Dropbox
    if [ -s 'git' ] ; then
        echo "    Dropbox Git directory found."
    else
        echo "    Dropbox Git directory created."
        mkdir git
    fi
else
    echo "You do not have a Dropbox folder at ~/Dropbox! Install Dropbox. Aborting..."
    exit 0
fi

# Process all directories matching the passed parameters.
echo "Starting processing for all files..."
for PROJ in $*
do
    if [ -d $PROJ ] ; then
        PROJNAME=$(basename $PROJ)
        echo "  Processing $PROJNAME..."

        # Enable Git with this project.
        cd $PROJ
        if [ -s '.git' ] ; then
            echo "    $PROJNAME is already a Git repository, ignoring..."
        else
            echo "    Initializing Git for $PROJNAME..."
            git init -q
            git add .
            git commit -m "Initial creation of project." -q

            # Make the origin Dropbox.

            cd ~/Dropbox/git
            if [ -s $PROJNAME ] ; then
                echo "    Warning! $PROJNAME already exists in Git! Ignoring..."
            else
                echo "    Putting $PROJNAME project on Dropbox..."
                mkdir $PROJNAME
                cd $PROJNAME
                git init -q --bare
            fi

            # Link the project to the origin
            echo "    Copying local $PROJNAME to Dropbox..."
            cd $PROJ
            git remote add origin "~/Dropbox/git/$PROJNAME"
            git push -q origin master
            git branch --set-upstream master origin/master
        fi
    fi
done

echo "Done processing all files."
cd $START_DIR

现在是2015年，就在三天前，一个基于Dropbox API v2的新工具已经被创建出来，可以安全地在Dropbox上使用git。它针对API工作，而不是使用桌面客户端，并正确地处理多个同时推送到共享文件夹中托管的存储库。

一旦配置，它允许设置一个完全像其他git远程一样的git远程。

git clone "dropbox::/path/to/repo"
git remote add origin "dropbox::/path/to/repo"

这个答案是基于Mercurial的经验，而不是Git，但这个经验告诉我们，如果你在不同的时间从不同的机器(对我来说是Mac、Unix和Windows)更新相同的基于Dropbox的存储库，那么以这种方式使用Dropbox会导致存储库损坏。

I don't have a complete list of the things that can go wrong, but here's a specific example that bit me. Each machine has its own notion of line-ending characters and how upper/lower case characters are handled in file names. Dropbox and Git/Mercurial handle this slightly differently (I don't recall the exact differences). If Dropbox updates the repository behind Git/Mercurial's back, presto, broken repository. This happens immediately and invisibly, so you don't even know your repository is broken until you try to recover something from it.

在用这种方法解决了一次混乱之后，我一直在使用下面的食谱，而且非常成功，没有任何问题的迹象。只需将存储库移出Dropbox。其他事情都用Dropbox;文档，JAR文件，任何你喜欢的东西。并使用GitHub (Git)或Bitbucket (Mercurial)来管理存储库本身。这两种工具都是免费的，所以不会增加成本，而且现在每种工具都发挥了自己的优势。

在Dropbox上运行Git/Mercurial除了风险什么都不会增加。不要这样做。

我使用Mercurial(或Git) + TrueCrypt + Dropbox进行加密远程备份。

最酷的是，如果你修改了一小部分代码，Dropbox不会同步整个TrueCrypt容器。同步时间大致与更改量成比例。即使它是加密的，TrueCrypt + Dropbox的组合也很好地利用了块密码+块级同步。

其次，单片加密容器不仅增加了安全性，还减少了存储库损坏的可能性。

警告:但是你必须非常小心，不要在Dropbox运行时挂载容器。如果两个不同的客户端将不同的版本签入到容器中，解决冲突也会很麻烦。因此，它只适用于个人备份，而不适用于团队。

设置:

创建一个Truecrypt容器(多个gb就可以了) 在Truecrypt首选项下，取消选中保留修改时间戳*。 创建一个由Dan上面提到的回购(https://stackoverflow.com/a/1961515/781695)

用法:

Dropbox辞职 挂载容器，推送更改，卸载 dropbox运行

附注:取消选中保留修改时间戳告诉dropbox文件已被修改，它应该同步。注意，即使不更改容器中的任何文件，装入容器也会修改时间戳。如果不希望发生这种情况，只需将卷挂载为只读

对于使用Dropbox的小型团队:

如果每个开发人员在Dropbox上都有自己的可写裸存储库，这只对其他开发人员开放，那么这就有利于代码共享而没有损坏的风险!

然后，如果你想要一个集中的“主线”，你可以让一个开发人员从自己的回购中管理所有推送。