fix: show file name with invalid frontmatter errors for MDX (#12355)

Co-authored-by: Emanuele Stoppa <my.burning@gmail.com>
Co-authored-by: Princesseuh <3019731+Princesseuh@users.noreply.github.com>

6 files changed, 50 insertions, 63 deletions

diff --git a/.changeset/wise-bulldogs-jump.md b/.changeset/wise-bulldogs-jump.md
new file mode 100644
index 000000000..58900bc58
--- /dev/null
+++ b/.changeset/wise-bulldogs-jump.md
@@ -0,0 +1,5 @@
+---
+'astro': patch
+---
+
+Improves error reporting for invalid frontmatter in MDX files during the `astro build` command. The error message now includes the file path where the frontmatter parsing failed.
diff --git a/packages/astro/src/cli/index.ts b/packages/astro/src/cli/index.ts
index a963b8414..8511a8304 100644
--- a/packages/astro/src/cli/index.ts
+++ b/packages/astro/src/cli/index.ts
@@ -133,8 +133,8 @@ async function runCommand(cmd: string, flags: yargs.Arguments) {
 		}
 		case 'sync': {
 			const { sync } = await import('./sync/index.js');
-			const exitCode = await sync({ flags });
-			return process.exit(exitCode);
+			await sync({ flags });
+			return;
 		}
 		case 'preferences': {
 			const { preferences } = await import('./preferences/index.js');
diff --git a/packages/astro/src/cli/sync/index.ts b/packages/astro/src/cli/sync/index.ts
index 7ffe662c5..7f488836d 100644
--- a/packages/astro/src/cli/sync/index.ts
+++ b/packages/astro/src/cli/sync/index.ts
@@ -22,10 +22,5 @@ export async function sync({ flags }: SyncOptions) {
 		return 0;
 	}
 
-	try {
-		await _sync(flagsToAstroInlineConfig(flags), { telemetry: true });
-		return 0;
-	} catch (_) {
-		return 1;
-	}
+	await _sync(flagsToAstroInlineConfig(flags), { telemetry: true });
 }
diff --git a/packages/astro/src/core/errors/errors-data.ts b/packages/astro/src/core/errors/errors-data.ts
index ed805eaff..e8492584a 100644
--- a/packages/astro/src/core/errors/errors-data.ts
+++ b/packages/astro/src/core/errors/errors-data.ts
@@ -1388,7 +1388,7 @@ export const GenerateContentTypesError = {
 	title: 'Failed to generate content types.',
 	message: (errorMessage: string) =>
 		`\`astro sync\` command failed to generate content collection types: ${errorMessage}`,
-	hint: 'Check your `src/content/config.*` file for typos.',
+	hint: 'This error is often caused by a syntax error inside your content, or your content configuration file. Check your `src/content/config.*` file for typos.',
 } satisfies ErrorData;
 /**
  * @docs
diff --git a/packages/astro/src/core/messages.ts b/packages/astro/src/core/messages.ts
index 3081c0b6c..57c44b065 100644
--- a/packages/astro/src/core/messages.ts
+++ b/packages/astro/src/core/messages.ts
@@ -298,6 +298,11 @@ export function formatErrorMessage(err: ErrorWithMetadata, showFullStacktrace: b
 		output.push(`    ${cyan(underline(docsLink))}`);
 	}
 
+	if (showFullStacktrace && err.loc) {
+		output.push(`  ${bold('Location:')}`);
+		output.push(`    ${underline(`${err.loc.file}:${err.loc.line ?? 0}:${err.loc.column ?? 0}`)}`);
+	}
+
 	if (err.stack) {
 		output.push(`  ${bold('Stack trace:')}`);
 		output.push(dim(formatErrorStackTrace(err, showFullStacktrace)));
diff --git a/packages/astro/src/core/sync/index.ts b/packages/astro/src/core/sync/index.ts
index 75acbe2c8..a4ee18702 100644
--- a/packages/astro/src/core/sync/index.ts
+++ b/packages/astro/src/core/sync/index.ts
@@ -23,6 +23,7 @@ import {
 	AstroError,
 	AstroErrorData,
 	AstroUserError,
+	type ErrorWithMetadata,
 	createSafeError,
 	isAstroError,
 } from '../errors/index.js';
@@ -62,17 +63,7 @@ export default async function sync(
 		logger,
 	});
 
-	// Run `astro:config:done`
-	// Actions will throw if there is misconfiguration, so catch here.
-	try {
-		await runHookConfigDone({ settings, logger });
-	} catch (err) {
-		if (err instanceof Error) {
-			const errorMessage = err.toString();
-			logger.error('sync', errorMessage);
-		}
-		throw err;
-	}
+	await runHookConfigDone({ settings, logger });
 
 	return await syncInternal({ settings, logger, fs, force: inlineConfig.force });
 }
@@ -112,51 +103,41 @@ export async function syncInternal({
 
 	const timerStart = performance.now();
 
-	try {
-		if (!skip?.content) {
-			await syncContentCollections(settings, { fs, logger });
-			settings.timer.start('Sync content layer');
-			let store: MutableDataStore | undefined;
-			try {
-				const dataStoreFile = getDataStoreFile(settings);
-				if (existsSync(dataStoreFile)) {
-					store = await MutableDataStore.fromFile(dataStoreFile);
-				}
-			} catch (err: any) {
-				logger.error('content', err.message);
-			}
-			if (!store) {
-				store = new MutableDataStore();
+	if (!skip?.content) {
+		await syncContentCollections(settings, { fs, logger });
+		settings.timer.start('Sync content layer');
+		let store: MutableDataStore | undefined;
+		try {
+			const dataStoreFile = getDataStoreFile(settings);
+			if (existsSync(dataStoreFile)) {
+				store = await MutableDataStore.fromFile(dataStoreFile);
 			}
-			const contentLayer = globalContentLayer.init({
-				settings,
-				logger,
-				store,
-			});
-			await contentLayer.sync();
-			settings.timer.end('Sync content layer');
-		} else if (fs.existsSync(fileURLToPath(getContentPaths(settings.config, fs).contentDir))) {
-			// Content is synced after writeFiles. That means references are not created
-			// To work around it, we create a stub so the reference is created and content
-			// sync will override the empty file
-			settings.injectedTypes.push({
-				filename: CONTENT_TYPES_FILE,
-				content: '',
-			});
+		} catch (err: any) {
+			logger.error('content', err.message);
 		}
-		syncAstroEnv(settings, fs);
-
-		await writeFiles(settings, fs, logger);
-		logger.info('types', `Generated ${dim(getTimeStat(timerStart, performance.now()))}`);
-	} catch (err) {
-		const error = createSafeError(err);
-		logger.error(
-			'types',
-			formatErrorMessage(collectErrorMetadata(error), logger.level() === 'debug') + '\n',
-		);
-		// Will return exit code 1 in CLI
-		throw error;
+		if (!store) {
+			store = new MutableDataStore();
+		}
+		const contentLayer = globalContentLayer.init({
+			settings,
+			logger,
+			store,
+		});
+		await contentLayer.sync();
+		settings.timer.end('Sync content layer');
+	} else if (fs.existsSync(fileURLToPath(getContentPaths(settings.config, fs).contentDir))) {
+		// Content is synced after writeFiles. That means references are not created
+		// To work around it, we create a stub so the reference is created and content
+		// sync will override the empty file
+		settings.injectedTypes.push({
+			filename: CONTENT_TYPES_FILE,
+			content: '',
+		});
 	}
+	syncAstroEnv(settings, fs);
+
+	await writeFiles(settings, fs, logger);
+	logger.info('types', `Generated ${dim(getTimeStat(timerStart, performance.now()))}`);
 }
 
 /**
@@ -223,7 +204,7 @@ async function syncContentCollections(
 			}
 		}
 	} catch (e) {
-		const safeError = createSafeError(e);
+		const safeError = createSafeError(e) as ErrorWithMetadata;
 		if (isAstroError(e)) {
 			throw e;
 		}
@@ -233,6 +214,7 @@ async function syncContentCollections(
 				...AstroErrorData.GenerateContentTypesError,
 				hint,
 				message: AstroErrorData.GenerateContentTypesError.message(safeError.message),
+				location: safeError.loc,
 			},
 			{ cause: e },
 		);