✨ hack/setup-envtest.sh: install binaries and print export variable command

[estroz]

The current setup-envtest.sh script is a little clunky, since it contains a combination of global settings and functions, and your calling shell is expected to be bash. Instead, the script should only download the envtest binaries, then print what to do next (export KUBEBUILDER_ASSETS=bin). You can automatically do the next thing with

eval $(./setup-envtest.sh | tail -1)

Binaries are now installed into the argument directory directly instead of under $1/bin, which is more intuitive; the default is $PWD/bin.

[k8s-ci-robot]

[APPROVALNOTIFIER] This PR is NOT APPROVED

This pull-request has been approved by: estroz
To complete the pull request process, please assign vincepri after the PR has been reviewed.
You can assign the PR to them by writing /assign @vincepri in a comment when ready.

The full list of commands accepted by this bot can be found here.

Needs approval from an approver in each of these files:

• OWNERS

Approvers can indicate their approval by writing /approve in a comment
Approvers can cancel approval by writing /approve cancel in a comment

[estroz]

/assign @vincepri

[estroz]

This should help fix problems like operator-framework/operator-sdk#4203

[k8s-ci-robot]

@estroz: PR needs rebase.

Instructions for interacting with me using PR comments are available here. If you have questions or suggestions related to my behavior, please file an issue against the kubernetes/test-infra repository.

[fejta-bot]

Issues go stale after 90d of inactivity.
Mark the issue as fresh with /remove-lifecycle stale.
Stale issues rot after an additional 30d of inactivity and eventually close.

If this issue is safe to close now please do so with /close.

Send feedback to sig-contributor-experience at kubernetes/community.
/lifecycle stale

[estroz]

Doesn't seem to be getting attention, and I think there was affirmative discussion of providing a library to download and/or look up envtest binaries rather than rely on the wrapping shell env.