CI: Support Fluentd after v1.13.3

[daipom]

The CI is updated in #5, but Bundler is still choosing Fluentd v1.12, not the latest Fluentd v1.15.3.

https://github.com/fluent-plugins-nursery/fluent-plugin-utmpx/actions/runs/4201345210/jobs/7288262037#step:3:69

It is the same in my local with Ruby 3.2.0.

Some tests fail on Fluentd v1.15.3.
($ bundle exec rake test is successful, but just $ rake test is not)

.......E
==================================================================================================================================================================================================================================================================================
Error: test_pos_file(UtmpxInputTest::pos_file use cases): ArgumentError: wrong number of arguments (given 3, expected 2)
/home/daipom/.rbenv/versions/3.2.0/lib/ruby/gems/3.2.0/gems/fluentd-1.15.3/lib/fluent/plugin/in_tail/position_file.rb:31:in `initialize'
/home/daipom/work/fluentd/plugins/embedded-in-td-agent/fluent-plugin-utmpx/test/plugin/test_in_utmpx.rb:93:in `new'
/home/daipom/work/fluentd/plugins/embedded-in-td-agent/fluent-plugin-utmpx/test/plugin/test_in_utmpx.rb:93:in `block in test_pos_file'
     90:           @pf = Fluent::Plugin::TailInput::PositionFile.new(file, logger: nil)
     91:           @pe = @pf[wtmp_path]
     92:         else
  => 93:           @pf = Fluent::Plugin::TailInput::PositionFile.new(file, false, {wtmp_path => target_info}, logger: nil)
     94:           @pe = @pf[target_info]
     95:         end
     96:         @pe.update_pos(@tail_position)
/home/daipom/work/fluentd/plugins/embedded-in-td-agent/fluent-plugin-utmpx/test/plugin/test_in_utmpx.rb:87:in `open'
/home/daipom/work/fluentd/plugins/embedded-in-td-agent/fluent-plugin-utmpx/test/plugin/test_in_utmpx.rb:87:in `test_pos_file'
==================================================================================================================================================================================================================================================================================
E
==================================================================================================================================================================================================================================================================================
Error: test_truncated(UtmpxInputTest::pos_file use cases): ArgumentError: wrong number of arguments (given 3, expected 2)
/home/daipom/.rbenv/versions/3.2.0/lib/ruby/gems/3.2.0/gems/fluentd-1.15.3/lib/fluent/plugin/in_tail/position_file.rb:31:in `initialize'
/home/daipom/work/fluentd/plugins/embedded-in-td-agent/fluent-plugin-utmpx/test/plugin/test_in_utmpx.rb:117:in `new'
/home/daipom/work/fluentd/plugins/embedded-in-td-agent/fluent-plugin-utmpx/test/plugin/test_in_utmpx.rb:117:in `block in test_truncated'
     114:           @pf = Fluent::Plugin::TailInput::PositionFile.new(file, logger: nil)
     115:           @pe = @pf[wtmp_path]
     116:         else
  => 117:           @pf = Fluent::Plugin::TailInput::PositionFile.new(file, false, {wtmp_path => target_info}, logger: nil)
     118:           @pe = @pf[target_info]
     119:         end
     120:         @pe.update_pos(@tail_position)
/home/daipom/work/fluentd/plugins/embedded-in-td-agent/fluent-plugin-utmpx/test/plugin/test_in_utmpx.rb:111:in `open'
/home/daipom/work/fluentd/plugins/embedded-in-td-agent/fluent-plugin-utmpx/test/plugin/test_in_utmpx.rb:111:in `test_truncated'
==================================================================================================================================================================================================================================================================================

Finished in 31.615735198 seconds.
----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------
9 tests, 10 assertions, 0 failures, 2 errors, 0 pendings, 0 omissions, 0 notifications
77.7778% passed
----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------
0.28 tests/s, 0.32 assertions/s
rake aborted!

[daipom]

Hmm, I'm investigating why Bundler chooses Fluentd v1.12.

fluent-plugin-utmpx/fluent-plugin-utmpx.gemspec

Lines 23 to 29 in 035b284

	spec.add_runtime_dependency "linux-utmpx", "~> 0.3.0"
	spec.add_runtime_dependency "fluentd", [">= 0.14.10", "< 2"]
	spec.add_development_dependency "bundler"
	spec.add_development_dependency "rake"
	spec.add_development_dependency "test-unit", "~> 3.5"
	spec.add_development_dependency "webrick"

[daipom]

Somehow this line affects the fluentd's version chosen by Bundler.

spec.add_development_dependency "webrick"

[daipom]

Somehow this line affects the fluentd's version chosen by Bundler.

spec.add_development_dependency "webrick"

This is because Fluentd limits the version of "webrick".

https://github.com/fluent/fluentd/blob/34f2c559e41aa7f4b760f55c9ac60a124de4c139/fluentd.gemspec#L31

[daipom]

The signature of Fluent::Plugin::TailInput::PositionFile.new() had changed since v1.13.3.

• Fix some pos_file bugs fluent/fluentd#3459

We need to follow this change.

[daipom]

This looks like simply a test issue.

The main code uses PositionFile.load instead of new().

fluent-plugin-utmpx/lib/fluent/plugin/in_utmpx.rb

Lines 66 to 70 in 035b284

	if Gem::Version.new(Fluent::VERSION) < Gem::Version.new("1.12.0")
	@pf = TailInput::PositionFile.load(@pf_file, logger: log)
	else
	@pf = TailInput::PositionFile.load(@pf_file, false, {target_info.path => target_info}, logger: log)
	end