feat: ignore entries outside of dist directory

src/cli.ts

@@ -74,6 +74,7 @@ const argv = cli({
 });
 
 const cwd = process.cwd();
+const { stringify } = JSON;
 
 /**
  * The sourcepath may be a symlink.
@@ -90,7 +91,18 @@ if (tsconfigTarget) {
 
 (async () => {
 	const packageJson = await readPackageJson(cwd);
-	const exportEntries = getExportEntries(packageJson);
+
+	let exportEntries = getExportEntries(packageJson);
+
+	exportEntries = exportEntries.filter((entry) => {
+		const validPath = entry.outputPath.startsWith(distPath);
+
+		if (!validPath) {
+			console.warn(`Ignoring entry outside of ${distPath} directory: package.json#${entry.from}=${stringify(entry.outputPath)}`);
+		}
+
+		return validPath;
+	});
 
 	if (exportEntries.length === 0) {
 		throw new Error('No export entries found in package.json');

src/utils/get-source-path.ts

@@ -27,10 +27,6 @@ export async function getSourcePath(
 	source: string,
 	dist: string,
 ) {
-	if (!exportEntry.outputPath.startsWith(dist)) {
-		throw new Error(`Export path ${stringify(exportEntry.outputPath)} from ${stringify(`package.json#${exportEntry.from}`)} is not in directory ${dist}`);
-	}
-
 	const sourcePath = source + exportEntry.outputPath.slice(dist.length);
 
 	for (const extension of (Object.keys(sourceExtensions) as (keyof typeof sourceExtensions)[])) {
@@ -46,5 +42,5 @@ export async function getSourcePath(
 		}
 	}
 
-	throw new Error(`Could not find mathing source file for export path ${stringify(exportEntry.outputPath)}`);
+	throw new Error(`Could not find matching source file for export path ${stringify(exportEntry.outputPath)}`);
 }

tests/specs/error-cases.ts

@@ -82,7 +82,7 @@ export default testSuite(({ describe }, nodePath: string) => {
 			await fixture.rm();
 		});
 
-		test('absolute path entry in package.json', async () => {
+		test('ignore and warn on path entry outside of dist directory', async () => {
 			const fixture = await createFixture('./tests/fixture-package');
 
 			await fixture.writeJson('package.json', {
@@ -99,7 +99,8 @@ export default testSuite(({ describe }, nodePath: string) => {
 			).catch(error => error);
 
 			expect(pkgrollProcess.exitCode).toBe(1);
-			expect(pkgrollProcess.stderr).toMatch('is not in directory ./dist');
+			expect(pkgrollProcess.stderr).toMatch('Ignoring entry outside of ./dist/ directory: package.json#main="/dist/main.js"');
+			expect(pkgrollProcess.stderr).toMatch('No export entries found in package.json');
 
 			await fixture.rm();
 		});