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ansiblings/scripts/coverage-summary.mjs
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#!/usr/bin/env node
/**
* Renders the per-package vitest `json-summary` reports as one Markdown table.
*
* Appends to $GITHUB_STEP_SUMMARY when running under Actions so the numbers are
* visible on the run page without opening the log, and prints to stdout
* otherwise. Never fails the build: the hard gate is vitest's own
* `coverage.thresholds`, this is only a report.
*/
import fs from 'node:fs';
import path from 'node:path';
const PACKAGES_DIR = 'packages';
const METRICS = ['statements', 'branches', 'functions', 'lines'];
const reports = fs
.readdirSync(PACKAGES_DIR)
.map((name) => ({
name,
file: path.join(PACKAGES_DIR, name, 'coverage', 'coverage-summary.json'),
}))
.filter(({ file }) => fs.existsSync(file));
if (reports.length === 0) {
console.error('No coverage reports found under packages/*/coverage — nothing to summarise.');
process.exit(0);
}
const heading = (metric) => metric[0].toUpperCase() + metric.slice(1);
const rows = reports.map(({ name, file }) => {
const { total } = JSON.parse(fs.readFileSync(file, 'utf-8'));
return `| \`${name}\` | ${METRICS.map((metric) => `${total[metric].pct}%`).join(' | ')} |`;
});
const table = [
'### Coverage',
'',
`| Package | ${METRICS.map(heading).join(' | ')} |`,
`| --- ${'| --- '.repeat(METRICS.length)}|`,
...rows,
'',
].join('\n');
const summaryFile = process.env.GITHUB_STEP_SUMMARY;
if (summaryFile) {
fs.appendFileSync(summaryFile, `${table}\n`);
} else {
console.log(table);
}