From 2585dfa1f9d731a7c17796ddfcb59a0153e28e72 Mon Sep 17 00:00:00 2001
From: Frank Li <frankli1@fb.com>
Date: Mon, 17 Jul 2017 12:25:36 -0700
Subject: [PATCH] Skip processing any docs with empty/no front matter instead
 of throwing error

---
 lib/server/generate.js     | 3 +++
 lib/server/readMetadata.js | 6 ++++++
 2 files changed, 9 insertions(+)

diff --git a/lib/server/generate.js b/lib/server/generate.js
index 426bf7f323..8aec19a45c 100644
--- a/lib/server/generate.js
+++ b/lib/server/generate.js
@@ -106,6 +106,9 @@ function execute() {
 
     if (extension === ".md" || extension === ".markdown") {
       const result = readMetadata.processMetadata(file);
+      if (!result) {
+        return;
+      }
 
       const metadata = result.metadata;
       let rawContent = result.rawContent;
diff --git a/lib/server/readMetadata.js b/lib/server/readMetadata.js
index c07465727f..521f267624 100644
--- a/lib/server/readMetadata.js
+++ b/lib/server/readMetadata.js
@@ -60,6 +60,9 @@ function extractMetadata(content) {
 
 function processMetadata(file) {
   const result = extractMetadata(fs.readFileSync(file, "utf8"));
+  if (!result.metadata || !result.rawContent) {
+    return null;
+  }
 
   const regexSubFolder = /docs\/(.*)\/.*/;
 
@@ -120,6 +123,9 @@ function generateDocsMetadata() {
 
     if (extension === ".md" || extension === ".markdown") {
       const res = processMetadata(file);
+      if (!res) {
+        return;
+      }
       const metadata = res.metadata;
       metadatas.push(metadata);
     }