Silence coverage report output from coverage:report task

[hsbt]

What is your fix for the problem, implemented in this PR?

Surpressed the following output:

Coverage report generated for bundler:11374, bundler:11374, bundler:12417, bundler:12600, bundler:14613, bundler:15090, bundler:15831, bundler:15831, bundler:15831, bundler:15831, bundler:15831, bundler:15831, bundler:15832, bundler:15833, bundler:15834, bundler:15835, bundler:15836, bundler:15837, bundler:15838, bundler:15839, bundler:15840, bundler:44939, bundler:44939, bundler:44939, bundler:44939, bundler:44939, bundler:50991, bundler:51182, bundler:51329, bundler:52462, bundler:53319, bundler:78081, bundler:80866, bundler:82379, bundler:83500, rubygems, bundler:50991, bundler:51182, bundler:51329, bundler:52462, bundler:53319, ...

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• Describe the problem / feature
• Write tests for features and bug fixes
• Write code to solve the problem
• Make sure you follow the current code style and write meaningful commit messages without tags

[Copilot]

Pull request overview

This PR aims to silence noisy console output produced by the coverage:report Rake task when generating a SimpleCov report from a collected resultset.

Changes:

• Redirects $stdout to File::NULL during SimpleCov.collate execution.
• Restores $stdout after report generation using an ensure clause.

Comments suppressed due to low confidence (1)

Rakefile:143

• Redirecting $stdout via File.open leaks the opened file handle (it’s never closed) and the ensure currently resets $stdout to STDOUT even when this task exits early (next on missing resultset / missing simplecov). That can clobber an already-redirected $stdout (e.g., when rake output is being captured). Prefer saving the previous $stdout, wrapping only the collate in a begin/ensure, and closing the null IO.

  $stdout = File.open(File::NULL, "w")
  SimpleCov.collate Dir[resultset] do
    coverage_dir "coverage"
    add_filter "/test/"
    add_filter "/spec/"

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