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Generate codecov-result.json for CI #2855

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Merged
david-a-wheeler merged 1 commit into from
Jun 25, 2026
Merged

Generate codecov-result.json for CI #2855

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16 changes: 16 additions & 0 deletions lib/tasks/default.rake
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Original file line number Diff line number Diff line change
Expand Up @@ -954,6 +954,22 @@ task 'test:coverage_gaps' do

puts "Combined Coverage: #{result.covered_percent.round(2)}%"

# In CI, write coverage/codecov-result.json from the merged result so the
# Codecov CLI (see .circleci/config.yml) has a file to upload. This MUST
# happen here, not in test_helper.rb: the test workers run with
# DEFER_COVERAGE set, which swaps in the minimal SimpleFormatter, so the
# Codecov formatter never runs during the test processes. The merged
# result is only complete once all parallel + system test runs finish.
#
# We call the gem's inner Codecov::SimpleCov::Formatter directly rather
# than SimpleCov::Formatter::Codecov, because the latter also invokes the
# gem's deprecated built-in network uploader. We upload separately with a
# pinned, hash-verified CLI, so we want ONLY the file-writing half here.
if ENV['CI']
require 'codecov'
Codecov::SimpleCov::Formatter.new.format(result)
end

# Iterate through files using SimpleCov's own 'missed_lines' logic
# to report what we missed.
gaps_found = false
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