I believe you're running into *merge conflicts *with*the parser changes *and/or*directory structure changes*.

Because the old repo and the new repo aren't considered forks
and because - strictly speaking - don't share any git history (every historic commit was rewritten during the split-up),
git can't do any of it's merging magic.
So you're stuck with plain old patches (like in SVN) and *those patches are stale*.

Originally, the plan was that you just merge your old repository until the last non-splitting up commit: https://github.com/droolsjbpm/droolsjbpm/tree/3e89a7afce9837517958a7069b0285def242b9cd You 'll probably run into merge conflicts with the parser changes too, but they might be easier to fix. Then create a patch from that, and apply it to the drools git repository (probably with merge conflicts again). Drools-core/compiler were not stable (= runnable) when they were split-up (so in that commit revision): Edson and Mark local branches had to applied on master to be migrated and they collided.

If your patch also applies on files outside directories drools-core and drools-compiler, such as drools-api (now knowledge-api), guvnor-webapp, etc
then manually split up that patch file into 2 patch files.

An alternative you can try, is fork on an old commit revision of drools (note: the tags could not be migrated during the split-up):
  https://github.com/droolsjbpm/drools/commits/master?page=8
then apply your patch on a branch of that and then merge HEAD to that branch (which will give you those merge conflicts again, but with git's merging magic).

Sorry that I can't help more :( Stale patches sux.

Op 03-04-11 09:27, Leonardo Gomes schreef:
Here's what I'm trying to do and haven't succeed so far:

*- Create a patch from my branch in droolsjbpm: *
https://github.com/droolsjbpm/droolsjbpm/commits/lr_unlinking_20101116

I forked, cloned and checked-out lr_unlinking_20101116. Then I tried to different ways of generating a patch

- git diff revision HEAD > myPatch.diff
- git format-patch -k --stdout revision..HEAD > myPatch.patch

*- Apply the patch to my fork of drools: *
https://github.com/leogomes/drools

First let's have a look at the stats:
- git apply --stat ../droolsjbpm/drools-core/myPatch.patch


Then verify (and fail!):
leo@leonardo-laptop:~/java/drools/git/drools/drools-core$ git apply --check ../droolsjbpm/drools-core/myPatch.patch error: patch failed: drools-core/src/main/java/org/drools/RuleBaseConfiguration.java:100 error: drools-core/src/main/java/org/drools/RuleBaseConfiguration.java: patch does not apply
(...)

I'm trying first with drools-core and then have to do the same for drools-compiler and api.

Any hint or another approach to suggest?

Thanks,
Leo.




On Fri, Apr 1, 2011 at 9:12 AM, Geoffrey De Smet <ge0ffrey.s...@gmail.com <mailto:ge0ffrey.s...@gmail.com>> wrote:

    If you're building the first time since the split-up, do take a
    look at the README to avoid all kinds of pitfalls:
    
https://github.com/droolsjbpm/droolsjbpm-build-bootstrap/blob/master/README.md
    It also talks about using UTF-8 encoding, unix (\n) line endings
    (in non-java files too), ...

    Op 01-04-11 08:49, Leonardo Gomes schreef:
    I managed to fork/clone and get diffs from everything I did, but
    I still need to install Maven 3 and make it coexist with Maven 2
    to be able to compile and test. Should be applying the patches
    later today, hopefully.

    Thanks, Geoffrey.


    On Thu, Mar 31, 2011 at 7:02 PM, Geoffrey De Smet
    <ge0ffrey.s...@gmail.com <mailto:ge0ffrey.s...@gmail.com>> wrote:



        Op 31-03-11 17:25, Leonardo Gomes schreef:
        Hello Guys,

        I didn't actually followed-up on all emails about the Git
        repository, but I think that it should be simple.

        *Problem:*
        I would like to manually apply the changes that I did into
        lr_unlinking_20101116 branch (+ some other changes I didn't
        commit yet) to the newly split repositories.
        I modified: drools-api, drools-core, drools-compiler.

        *Solution:*
        - Fork https://github.com/droolsjbpm/droolsjbpm-knowledge
        for the drools-api changes
        and https://github.com/droolsjbpm/drools for the others
        (core and compiler).

        and clone your forks
        - Manually apply my patches
        locally, and then commit and push to your forks
        , create a pull request.
        2 probably, one for each repository
        but yes, that should work :)


        Is that correct? Anything else to keep in mind?

        Thanks,
        Leonardo.




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        Geoffrey De Smet


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