local builds should respect .gitignore ?

[spMohanty]

I somehow expected that when building a local repository, repo2docker will respect .gitignore and not package the ignored files/directories in the image itself.

The use case where this was inconvenient was, when I had a data/ folder in my source code, which was ignored by git based on the pathspecs in .gitignore.
The folder in my dev environment contained about 16gb of data in the data/ folder, and repo2docker ended up copying over all that data into the image (and also because of this issue, the actual image size ended up being around 35GB 😢 ).

[choldgraf]

hmm - this sounds like something that's out of scope for repo2docker...It sounds like this is a frustrating experience, but adding the logic to remove files specified in a .gitignore file feels like it'd be a hacky solution.

I think you'll have better luck if you temporarily move out the data folder before running r2d on the repo. That said, I'm not sure how common it is to keep a large chunk of data bundled with a git repository. Let's keep this issue open in case other people run into the same problem and we decide we want to re-consider this.

[betatim]

I like the idea of respecting .dockerignore as discussed in #269

[choldgraf]

ah yes - I think .dockerignore would be a nice pattern since it's already out there.