Replace Travis CI with GitHub Actions

[tnir]

We do not see any new builds on Travis CI (.org) https://travis-ci.org/github/KnapsackPro/knapsack/builds (and the project is not found on .com https://travis-ci.com/github/KnapsackPro/knapsack).

Blocked by #114

Changes

• The base OS image was upgraded from Ubuntu 16.04 LTS to 20.04 LTS.

Announcement from Travis

https://blog.travis-ci.com/2020-11-02-travis-ci-new-billing
https://blog.travis-ci.com/oss-announcement

Counterpart PRs

• Replace Travis CI badge to GitHub Actions docs.knapsackpro.com#82

Signed-off-by: Takuya Noguchi [email protected]

[tnir]

This PR is only for push or PR for master, https://github.com/tnir/knapsack/runs/2865274937 shows the results expected with this PR to you. Note that job with Ruby 2.1 fails.

Ruby 2.1 is preserved in this PR since it has been preserved even in #110 and/or on d4f2c80.

[ArturT]

Could you fix the conflict in .travis.yml? It was changed in your PR that I've merged. You could simply remove this file again to resolve the conflict.

I'm wondering what to do with failing build in Ruby 2.1.

On one hand Ruby 2.1 support has ended but on the other hand, I don't want to make the hard requirement of >= Ruby 2.2 to force users to use newer Ruby if they have legacy projects.

Regarding the error:

/opt/hostedtoolcache/Ruby/2.1.9/x64/lib/ruby/2.1.0/minitest/unit.rb:26:in `const_missing': uninitialized constant MiniTest::Test (NameError)
	from /home/runner/work/knapsack/knapsack/lib/knapsack/adapters/minitest_adapter.rb:24:in `bind_time_tracker'

Maybe we need a similar condition for Ruby 2.1 as here for Ruby 1.9.3.

Ruby 2.1.10 seems to be the latest version available for 2.1.x.

Maybe something like that?

if RUBY_VERSION == "2.1.10"
  unless defined? MiniTest::Test
    MiniTest::Test = Minitest::Test
  end
end

[tnir]

Could you fix the conflict in .travis.yml? It was changed in your PR that I've merged. You could simply remove this file again to resolve the conflict.

Yes, I did it.

I'm wondering what to do with failing build in Ruby 2.1.

The tweak for minitest 4 (which had been bundled with Ruby 1.9 through 2.1) introduced in #26 does bad. We expected minitest 5 in #16, but we could not have been using minitest 5.x on CI (with Ruby 2.1 or earlier). We can merge #114 first.

[ArturT]

I've merged #114 and I merged this PR as well but CI build for Ruby 2.1 still was failing.

I decided to drop support for Ruby 2.1 here.

[ArturT]

I've released knapsack 3.0.0.

Thanks @tnir for your help. :)