How to overlay a file such as README.md about copybara HOT 6 CLOSED

Hi!

K, IIUC you have a .copybara/public/README.md that you want to include despite excluding.copybara. You can do that by doing :

 origin_files = glob(["**"], exclude = ["copy.bara.sky", ".copybara/**", "Jenkinsfile", "README.md"]) + glob([".copybara/public/README.md"]),

Glob can be added. And the semantic is 'OR'. So this would exclude all .copybara files except .copybara/public/README.md.

The second thing you would do is:

core.move(".copybara/public/README.md", "README.md"))

Note that this transformation is reversible. A good property to have for accepting CHANGE_REQUEST contributions from the public repo.

Last thing, about testing it locally :)

This is how I usually test things locally. I found it to be the most convenient way (because you can use a non bare repo):

rm -rf /tmp/local_repo; copybara foo/copy.bara.sky workflow --dry-run --git-destination-path /tmp/local_repo

Then /tmp/local_repo is a non-bare repo with remote origin set to the remote repo and with the created commits in the checked in branch.

from copybara.

That's about what I was looking for! Thanks for the explanation, I'll give it a go.

from copybara.

Great! feel free to reopen if it doesn't work.

from copybara.

This worked fairly well! However, if the file doesn't exist in the early commits of the project, it'll barf. What I ended up doing was running it without this config until we'd migrated out everything sans the internal file, and then modified it to do the move of the file.

from copybara.

Another option is to wrap core.move in https://github.com/google/copybara/blob/master/docs/reference.md#core.transform

and set ignore_noop = True.

note that this should be temporary since we don't recommend permanent ignore_noops.

from copybara.

BTW, looks like for an initial migrate with transformations with core.move where early revisions do not have this, can also be done with cli option --ignore-noop to limit the noop handling just for that first --init-history migration.

from copybara.