这将获取当前分支并尝试快速跳转到master:

git fetch && git merge --ff-only origin/master

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

下面的命令不会总是工作。如果你这样做了:

$ git checkout thebranch
Already on 'thebranch'
Your branch and 'origin/thebranch' have diverged,
and have 23 and 7 different commits each, respectively.

$ git reset --hard
HEAD is now at b05f611 Here the commit message bla, bla

$ git pull
Auto-merging thefile1.c
CONFLICT (content): Merge conflict in thefile1.c
Auto-merging README.md
CONFLICT (content): Merge conflict in README.md
Automatic merge failed; fix conflicts and then commit the result.

等等……

要真正从头开始，下载分支并覆盖所有本地更改，只需执行:

$ git checkout thebranch
$ git reset --hard origin/thebranch

这就可以了。

$ git checkout thebranch
Already on 'thebranch'
Your branch and 'origin/thebranch' have diverged,
and have 23 and 7 different commits each, respectively.

$ git reset --hard origin/thebranch
HEAD is now at 7639058 Here commit message again...

$ git status
# On branch thebranch
nothing to commit (working directory clean)

$ git checkout thebranch
Already on 'thebranch'

如果你使用的是Linux:

git fetch
for file in `git diff origin/master..HEAD --name-only`; do rm -f "$file"; done
git pull

for循环将删除所有在本地回购中更改的跟踪文件，因此git pull将正常工作。 关于这一点最好的事情是，只有被跟踪的文件将被repo中的文件覆盖，所有其他文件将保持不变。

你只是想要一个与rm -rf local_repo && git clone remote_url完全相同的命令，对吗?我也想要这个功能。我想知道为什么git没有提供这样的命令(比如git reclone或者git sync)， svn也没有这样的命令(比如svn recheckout或者svn sync)。

试试下面的命令:

git reset --hard origin/master
git clean -fxd
git pull

这将获取当前分支并尝试快速跳转到master:

git fetch && git merge --ff-only origin/master