Bazaar

Migration from one bazaar repository to multiple new repositories

Asked by Sebastian Messerschmidt

I'm trying to migrate a bzr repository that contains a lot of branches into multiple repositories.
Currently the old repository has a lot of structures where one trunk and several feature branches are related like this:

trunk X
-branch1
...
-branchN

Now in the new respository for say X I want:
Repo X
-trunk
-branch1
...
-branchN

So i create an new repository via bzr init-repo bzr+ssh://new_repo/X
Also I did:
bzr init bzr+ssh://new_repo/X/trunk
bzr init bzr+ssh://new_repo/X/branch1

Now I've exported (via fast-export) the trunk and branches of X via:
bzr fast-export bzr+ssh://old_repo/X/trunk oldXtrunk.fi --export_marks=oldXtrunks.marks
bzr fast-export bzr+ssh://old_repo/X/branch1 oldXbranch1.fi --export_marks=oldXbranch1.marks
(I've also tried to use import-marks=oldXtrunks.marks on the branch, but this only gave me a message that the imported marks can't be used)

If I now do a fast-import on a checkout of the clean(rev 0) trunk:
bzr fast-import oldXtrunk.fi new_repo_trunk
and
bzr fast-import oldXbranch1.fi new_repo_branch1 --import-marks=oldXtrunks.marks I get an error like:

ABORT: exception occurred processing commit :1
bzr: ERROR: bzrlib.errors.NoSuchRevision: CHKInventoryRepository('file:///D:/tmp/repo_testbed/new_swrm_agls/.bzr/repository/') has no revision ...

What am I missing?
I really need the related branches to present and mergeable in the new repositories if they were related before.
Can someone help me with the import/export mark thing here?

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Solved by:
Vincent Ladeuil
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Best Vincent Ladeuil (vila) said : 		#1

bzr always pull/push what is needed to get a complete branch history.

There is no need to involve fast-{export/import}, just puhs your branches after doing the setup you did to share repositories between related branches, the resulting repositories will contain the revisions that appear in any of the branches.

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Sebastian Messerschmidt (sebastian-messerschmidt) said : 		#2

Thank you Vincent.

Starting with a clean head this morning I figured it out myself.
Anyways, maybe this could be useful for other people too, which why I'll document the complete process:

grab a checkout of you old repo, or check it out:

bzr co bzr://old_repo/trunk trunk_old
bzr co bzr://old_repo/branch branch_old

initialize your new branches:

bzr init bzr://new_repo/trunk
bzr init bzr://new_repo/branch

now simply push them:
cd trunk
bzr push bzr://new_repo/trunk
cd branch
bzr push bzr://new_repo/branch

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Sebastian Messerschmidt (sebastian-messerschmidt) said : 		#3

Thanks Vincent Ladeuil, that solved my question.