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The design/, diagrams/ and testcases/ directories should each be moved from the core p2j project into their own project (of the same name) in the same top level location as the books, samples and so forth: p2j_repo/

Review all of the package.html files. Many of them have unnecessary content or old content. This stuff can be moved out of those html files and if necessary, checked into the non-core BZR projects somewhere.

In thinking about this work, I wish to create Bazaar projects in which the deleted stuff can be moved (see above). For example, I want to delete design/ from the p2j/ project and have all the contents (including history and prior versions...) in a Bazaar project of its own.

My key question: is there a reasonable way to do that?

I could duplicate the p2j project (literally, copy the directory including all the .bzr stuff), then delete everything except for the design/ directory. This should retain all the history and the top level directory can be named anything. BUT this new project would then still have all the P2J history in its .bzr metadata. And that stuff can always be brought back, which is NOT wanted.

Ideas?

It seems the fast-import-filter will do it.

$ bzr help fast-import-filter
Purpose: Filter a fast-import stream to include/exclude files & directories.
Usage:   bzr fast-import-filter [SOURCE]

Should I make a test on this ?

Yes, please test this.

It worked:
1. filter the "fi" file to include only the design directory along with the history:

bzr fast-import-filter -i design/ p2j.fi > /tmp/design.fi

md /path/to/bzrrepo/design
cd /path/to/bzrrepo/design
bzr init

bzr fast-import /tmp/design.fi /path/to/bzrrepo/design

You'll need the p2j.fi file generated on the conversion from the CVS.
p2j.fi could be found in the cvs2bzr-2.4.0/cvs2svn-tmp directory.

The p2j.fi file could also be obtained from the current bazaar repository by:

cd /path/to/bzrrepo/p2j
bzr fast-export . p2j.fi

I used the provided instructions and it worked well! I used the current bazaar repo and captured a new p2j.fi so that all recent changes were handled. Then I moved design/, diagrams/ and testcases/ out of p2j and into: /opt/code/p2j_repo/design/, /opt/code/p2j_repo/diagrams/ and /opt/code/p2j_repo/testcases/ respectively. Finally, I removed these directories from the p2j project and committed the change.