I had some patches in one Git repository that I wanted to apply to a different repository. Here's a useful link I found on this :
Here's what I did.
First, copy the original repository you want to get patch from. This may not be necessary in all cases, but in my case the original repository was on another machine, so this just puts everything on the same machine.
$ git clone ssh://firstname.lastname@example.org/repos/origRepo $ cd origRepo
Make a directory to hold the patches you'll make.
$ mkdir /tmp/myPatches
In the original repository, identify the patch(es) you want to apply. I found this out with gitk (git log may also work). In my case, it was just one commit, so I just put in the two commit hashes which indicate the beginning and ending of the patch :
$ git format-patch -M -C --output-directory /tmp/myPatches 17fbf896..fb9bea1
Now inspect your new patch. Note how the patch is named after the commit message :
$ less /tmp/myPatches/0001-DKL-mods-to-theme.patch
Now go to the 'new' repository which accept the patch :
$ cd /repos/newRepo
Make a new, temporary branch to accept your patch. You'll apply the patch to the new branch. If things look good, you can merge in the newly applied patch.
$ git checkout myBranch $ git checkout -b myBranch-patches
Apply the patch to your new, temporary branch
$ git am /tmp/myPatches/00*
See what the patch gave you :
$ git diff --stat myBranch myBranch-patches $ git difftool myBranch myBranch-patches
If things look good, merge it into the original branch :
$ git checkout myBranch $ git merge myBranch-patches