Support pushing files?

[dougthor42]

Is your feature request related to a problem? Please describe.

Downloading stuff from GCS is great, but what about uploading?

Describe the solution you'd like

pkg_tar(
    name = "foo",
    ...,
)

# bazel run //path/to:push_tarball
gcs_push(
    name = "push_tarball",
    file = ":foo",
    ...,
)

Describe alternatives you've considered

We'll be writing a sh_binary:

Untested example:

sh_binary(
    name = "push_tarball",
    srcs = ["push_to_gcs.sh"],
    data = [":foo"],
    deps = ["//:gcloud_binary"],
    args = ["$(location :foo)"],
)

#!/bin/bash
# push_to_gcs.sh
gcloud storage cp $1 gs://foo/bar/

We could also use a genrule, but the sh_binary is probably better.

Additional context

N/A

[malt3]

It's an interesting idea that is extending the scope of the project in a way that makes sense.
I think that we would probably want to ship a statically linked Go app to perform the upload to avoid dependencies on Python.
Another question is if / how we would handle multiple blobs (multirun is the simple way, we could also add some way to upload multiple blobs in a single Bazel target).
I added it to our backlog. We also welcome external contributions!

[dougthor42]

Yeah it would be nice if gcloud was available as a standalone binary... ah well. A shipped go app is probably the way to go.

I personally don't have a need for supporting multiple blobs, and I can't imagine very many situations where there is a need. After all, if the tool doesn't support multiple blobs then people can make a tar and push that instead.

Thanks for thinking about it!