Re: Apply commits from one branch to another branch (tree structure is different)

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On Fri, Mar 14, 2014 at 4:01 PM, Jagan Teki <jagannadh.teki@xxxxxxxxx> wrote:
> On Sat, Mar 15, 2014 at 12:48 AM, Andrew Wong <andrew.kw.w@xxxxxxxxx> wrote:
>> On Fri, Mar 14, 2014 at 1:39 PM, Jagan Teki <jagannadh.teki@xxxxxxxxx> wrote:
>>> Suppose developer send 10 patches on branch1 where are changes in terms
>>> of <dir>_<version>/ then I need to apply on my local repo branch1, till now
>>> is fine then I need to apply same 10 patches on to my branch2 where source
>>> tree <dir> which is quite question here how can I do.
>>
>> You might be able to use the subtree option in recursive merge. Try
>> something like:
>>
>>     git cherry-pick -X subtree=foo <commit>
>>
>> This tells git to apply the changes to the "foo" directory in your
>> current branch (branch2).
>
> How do I do this?
>
> Suppose I'm in branch1 with two commits on foo_v2 and I need to apply them
> on branch2 where in foo.

Since this uses cherry-pick, the changes that you want to apply have
to be on branch1 already.

Let's say your branch1 looks like:
    --A--B--C--D
and branch2 looks like:
    --1--2--3--4

And you want to apply commits B and C on branch2, but they modify
"foo_v1/" on branch1. You can tell git to apply the commits onto the
directory "foo/" on branch2:
    git checkout branch2    # make sure you're on branch2
    git cherry-pick -X subtree=foo B C    # pick the commits

If there's no conflict, the commits should apply cleanly, and your
branch2 would become like:
    --1--2--3--4--B'--C'
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