Check which files were changed in pr

dist/main.js

@@ -22881,7 +22881,7 @@ function uncovered(file, options) {
 		.join(", ")
 }
 
-function comment (lcov, options) {
+function comment(lcov, options) {
 	return fragment(
 		`Coverage after merging ${b(options.head)} into ${b(options.base)}`,
 		table(tbody(tr(th(percentage(lcov).toFixed(2), "%")))),
@@ -22899,24 +22899,52 @@ function diff(lcov, before, options) {
 	const pafter = percentage(lcov);
 	const pdiff = pafter - pbefore;
 	const plus = pdiff > 0 ? "+" : "";
-	const arrow =
-		pdiff === 0
-			? ""
-			: pdiff < 0
-				? "▾"
-				: "▴";
+	const arrow = pdiff === 0 ? "" : pdiff < 0 ? "▾" : "▴";
 
 	return fragment(
 		`Coverage after merging ${b(options.head)} into ${b(options.base)}`,
-		table(tbody(tr(
-			th(pafter.toFixed(2), "%"),
-			th(arrow, " ", plus, pdiff.toFixed(2), "%"),
-		))),
+		table(
+			tbody(
+				tr(
+					th(pafter.toFixed(2), "%"),
+					th(arrow, " ", plus, pdiff.toFixed(2), "%"),
+				),
+			),
+		),
 		"\n\n",
 		details(summary("Coverage Report"), tabulate(lcov, options)),
 	)
 }
 
+async function changedFiles(github, repo, commits) {
+	const files = [];
+
+	await Promise.all(
+		commits.map(async function(commit) {
+			if (!commit.distinct) {
+				return
+			}
+
+			const result = await github.repos.getCommit({
+				...repo,
+				ref: commit.id,
+			});
+
+			if (!result || !result.data) {
+				return
+			}
+
+			for (const file of result.data.files) {
+				if (file.status === "added" || file.status === "modified") {
+					files.push(file.filename);
+				}
+			}
+		}),
+	);
+
+	return files
+}
+
 async function main$1() {
 	const token = core$1.getInput("github-token");
 	const lcovFile = core$1.getInput("lcov-file") || "./coverage/lcov.info";
@@ -22928,11 +22956,20 @@ async function main$1() {
 		return
 	}
 
-	const baseRaw = baseFile && await fs.promises.readFile(baseFile, "utf-8").catch(err => null);
+	const baseRaw =
+		baseFile && (await fs.promises.readFile(baseFile, "utf-8").catch(err => null));
 	if (baseFile && !baseRaw) {
 		console.log(`No coverage report found at '${baseFile}', ignoring...`);
 	}
 
+	const github = new github_2(token);
+	const files = await changedFiles(
+		github,
+		github_1.repo,
+		github_1.payload.commits,
+	);
+	console.log(JSON.stringify(files, null, 2));
+
 	const options = {
 		repository: github_1.payload.repository.full_name,
 		commit: github_1.payload.pull_request.head.sha,
@@ -22942,12 +22979,11 @@ async function main$1() {
 	};
 
 	const lcov = await parse$2(raw);
-	const baselcov = baseRaw && await parse$2(baseRaw);
+	const baselcov = baseRaw && (await parse$2(baseRaw));
 	const body = diff(lcov, baselcov, options);
 
-	await new github_2(token).issues.createComment({
-		repo: github_1.repo.repo,
-		owner: github_1.repo.owner,
+	await github.issues.createComment({
+		...github_1.repo,
 		issue_number: github_1.payload.pull_request.number,
 		body: diff(lcov, baselcov, options),
 	});

src/comment.js

@@ -3,7 +3,7 @@ import { details, summary, b, fragment, table, tbody, tr, th } from "./html"
 import { percentage } from "./lcov"
 import { tabulate } from "./tabulate"
 
-export function comment (lcov, options) {
+export function comment(lcov, options) {
 	return fragment(
 		`Coverage after merging ${b(options.head)} into ${b(options.base)}`,
 		table(tbody(tr(th(percentage(lcov).toFixed(2), "%")))),
@@ -21,19 +21,18 @@ export function diff(lcov, before, options) {
 	const pafter = percentage(lcov)
 	const pdiff = pafter - pbefore
 	const plus = pdiff > 0 ? "+" : ""
-	const arrow =
-		pdiff === 0
-			? ""
-			: pdiff < 0
-				? "▾"
-				: "▴"
+	const arrow = pdiff === 0 ? "" : pdiff < 0 ? "▾" : "▴"
 
 	return fragment(
 		`Coverage after merging ${b(options.head)} into ${b(options.base)}`,
-		table(tbody(tr(
-			th(pafter.toFixed(2), "%"),
-			th(arrow, " ", plus, pdiff.toFixed(2), "%"),
-		))),
+		table(
+			tbody(
+				tr(
+					th(pafter.toFixed(2), "%"),
+					th(arrow, " ", plus, pdiff.toFixed(2), "%"),
+				),
+			),
+		),
 		"\n\n",
 		details(summary("Coverage Report"), tabulate(lcov, options)),
 	)

src/files.js

@@ -0,0 +1,28 @@
+export async function changedFiles(github, repo, commits) {
+	const files = []
+
+	await Promise.all(
+		commits.map(async function(commit) {
+			if (!commit.distinct) {
+				return
+			}
+
+			const result = await github.repos.getCommit({
+				...repo,
+				ref: commit.id,
+			})
+
+			if (!result || !result.data) {
+				return
+			}
+
+			for (const file of result.data.files) {
+				if (file.status === "added" || file.status === "modified") {
+					files.push(file.filename)
+				}
+			}
+		}),
+	)
+
+	return files
+}

src/index.js

@@ -4,6 +4,7 @@ import { GitHub, context } from "@actions/github"
 
 import { parse } from "./lcov"
 import { diff } from "./comment"
+import { changedFiles } from "./files"
 
 async function main() {
 	const token = core.getInput("github-token")
@@ -16,11 +17,20 @@ async function main() {
 		return
 	}
 
-	const baseRaw = baseFile && await fs.readFile(baseFile, "utf-8").catch(err => null)
+	const baseRaw =
+		baseFile && (await fs.readFile(baseFile, "utf-8").catch(err => null))
 	if (baseFile && !baseRaw) {
 		console.log(`No coverage report found at '${baseFile}', ignoring...`)
 	}
 
+	const github = new GitHub(token)
+	const files = await changedFiles(
+		github,
+		context.repo,
+		context.payload.commits,
+	)
+	console.log(JSON.stringify(files, null, 2))
+
 	const options = {
 		repository: context.payload.repository.full_name,
 		commit: context.payload.pull_request.head.sha,
@@ -30,12 +40,11 @@ async function main() {
 	}
 
 	const lcov = await parse(raw)
-	const baselcov = baseRaw && await parse(baseRaw)
+	const baselcov = baseRaw && (await parse(baseRaw))
 	const body = diff(lcov, baselcov, options)
 
-	await new GitHub(token).issues.createComment({
-		repo: context.repo.repo,
-		owner: context.repo.owner,
+	await github.issues.createComment({
+		...context.repo,
 		issue_number: context.payload.pull_request.number,
 		body: diff(lcov, baselcov, options),
 	})