What does this do?

Collect md test reports and transform in preferable way to show as a comment.

How to use it?

Execute:

npx coverage-report-transform
npx coverage-report-transform --help
npx coverage-report-transform . -n coverage-summary.json -f ./apps ./dashboard

Baseline / regression comparison

Pass a directory containing a previous run's coverage reports (e.g. the ones produced on main) to show, per package and per metric, how the current coverage changed relative to that baseline. The baseline directory is searched the same way as the current one (-n, -f, -l), so it should mirror the same layout (e.g. apps/<app>/coverage/coverage-summary.json).

npx coverage-report-transform . -b ./.coverage-baseline

Each metric cell gets an inline delta: ▲+2.1 (improvement), 🔻-4 (regression), ＝ (unchanged). Packages with no matching baseline file render without a delta. Without -b the output is unchanged.

Optionally fail the run on a regression (for gating):

# exit non-zero if any metric drops at all
npx coverage-report-transform . -b ./.coverage-baseline --fail-on-regression

# exit non-zero only if a metric drops more than 1 percentage point
npx coverage-report-transform . -b ./.coverage-baseline --fail-on-regression 1