convert-cobertura-to-arcanist.mjs
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convert-cobertura-to-arcanist.mjs
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	import fs from "fs";
	import xml2js from "xml2js";

	function convertCoberturaToArcanistJSON(coberturaXml) {
	const parser = new xml2js.Parser();
	return parser.parseStringPromise(coberturaXml).then((result) => {
	const coverage = {};

	const classes = result.coverage.packages[0].package.flatMap(
	(pkg) => pkg.classes[0].class
	);

	for (const cls of classes) {
	const filePath = cls.$.filename;
	const lines = cls.lines[0].line;

	const lineCoverage = [];
	let maxLine = 0;

	for (const line of lines) {
	const num = parseInt(line.$.number, 10);
	const hits = parseInt(line.$.hits, 10);
	if (num > maxLine) maxLine = num;
	lineCoverage[num] = hits > 0 ? "C" : "U";
	}

	// Fill gaps with 'N'
	for (let i = 1; i <= maxLine; i++) {
	if (!lineCoverage[i]) lineCoverage[i] = "N";
	}

	const coverageStr = lineCoverage.slice(1).join("");
	coverage[filePath] = coverageStr;
	}
	return coverage;
	});
	}

	const coberturaXml = fs.readFileSync("coverage/cobertura-coverage.xml", "utf8");
	convertCoberturaToArcanistJSON(coberturaXml).then((json) => {
	console.log(JSON.stringify(json));
	});