From ca1810392b0542d6ce9d2b9e585eab7fa8a6302a Mon Sep 17 00:00:00 2001
From: Matthias Kretschmann <m@kretschmann.io>
Date: Sun, 13 May 2018 01:05:09 +0200
Subject: [PATCH] truncate meta description

---
 src/components/atoms/SEO.jsx | 16 ++++++++++++++--
 1 file changed, 14 insertions(+), 2 deletions(-)

diff --git a/src/components/atoms/SEO.jsx b/src/components/atoms/SEO.jsx
index ef40295..eca8c50 100644
--- a/src/components/atoms/SEO.jsx
+++ b/src/components/atoms/SEO.jsx
@@ -2,11 +2,23 @@ import React from 'react'
 import Helmet from 'react-helmet'
 import PropTypes from 'prop-types'
 
+function truncate(n, useWordBoundary) {
+  if (this.length <= n) {
+    return this
+  }
+  const subString = this.substr(0, n - 1)
+  return (
+    (useWordBoundary
+      ? subString.substr(0, subString.lastIndexOf(' '))
+      : subString) + '...'
+  )
+}
+
 const SEO = ({ project, meta }) => {
   const title = project.title ? project.title : meta.title
   const description = project.description
-    ? project.description
-    : meta.description
+    ? truncate.apply(project.description, [320, true])
+    : truncate.apply(meta.description, [320, true])
   const image = project.img
     ? project.img.childImageSharp.twitterImage.src
     : meta.img.childImageSharp.resize.src