将所有内容拉到git中的特定提交

Question

I've two servers - Staging and Live. I keep my staging server up-to-date so it has all the latest changes push to my git repo. Now I want to update my Live server but I don't want to pull everything from my repo but only till a specific commit.

When I do

git status

it says

# git status
# On branch master
# Your branch is ahead of 'origin/master' by 21 commits.
#

When I do

git checkout 7c7f78382fgh9e642d9b3298acacc5903410fefa

I get an error...

fatal: reference is not a tree: 7c7f78382fgh9e642d9b3298acacc5903410fefa

Any idea what can be wrong.

Do I need to pull everything latest and then do checkout ?

Thanks!

Answer 1

You need to fetch the remote commits before you can use them.

On your production server:

git fetch origin                                      # Fetches commits from the remote repository
git checkout 7c7f78382fgh9e642d9b3298acacc5903410fefa # Moves forward to the relevant one

Answer 2

To be clearer, you should actually check out a hash to a branch, otherwise you'll be in a detached head state.

git fetch origin                        # Fetches commits from the remote repository
git checkout -b new_branch_name 7c7f783 # creates a new branch from this commit.