From 4a40d89783590f11a06841a0bbf6686b439e5b47 Mon Sep 17 00:00:00 2001
From: Kamran Ahmed <kamranahmed.se@gmail.com>
Date: Mon, 13 May 2024 01:12:05 +0100
Subject: [PATCH] Add script to warmup og

---
 package.json       |  1 +
 scripts/warm-og.sh | 39 +++++++++++++++++++++++++++++++++++++++
 2 files changed, 40 insertions(+)
 create mode 100755 scripts/warm-og.sh

diff --git a/package.json b/package.json
index 6a6bf0651..e92030f2d 100644
--- a/package.json
+++ b/package.json
@@ -20,6 +20,7 @@
     "best-practice-dirs": "node scripts/best-practice-dirs.cjs",
     "best-practice-content": "node scripts/best-practice-content.cjs",
     "generate:og": "node ./scripts/generate-og-images.mjs",
+    "warm:og": "sh ./scripts/warm-og.sh https://roadmap.sh/sitemap-0.xml",
     "compress:images": "tsx ./scripts/compress-images.ts",
     "test:e2e": "playwright test"
   },
diff --git a/scripts/warm-og.sh b/scripts/warm-og.sh
new file mode 100755
index 000000000..de8f98f69
--- /dev/null
+++ b/scripts/warm-og.sh
@@ -0,0 +1,39 @@
+#!/usr/bin/env bash
+
+# Usage: warm-og.sh <sitemap-url>
+# Example: warm-og.sh https://www.example.com/sitemap.xml
+
+# Check if sitemap url is provided
+if [ -z "$1" ]; then
+  echo "Please provide sitemap URL" >&2
+  exit 1
+fi
+
+# Get all URLs from sitemap
+urls=$(curl -s "$1" | grep -o "<loc>[^<]*</loc>" | sed 's#<loc>\(.*\)</loc>#\1#')
+
+failed_urls=()
+
+# Warm up URLs
+for url in $urls; do
+  # Fetch the og:image URL from the meta tags
+  og_image_url=$(curl -s "$url" | grep -o "<meta property=\"og:image\" content=\"[^\"]*\"" | sed 's#<meta property="og:image" content="\([^"]*\)"#\1#')
+
+  # Warm up the og:image URL
+  if [ -n "$og_image_url" ]; then
+    echo "Warming up $og_image_url"
+    if ! curl -s -I "$og_image_url" > /dev/null; then
+      failed_urls+=("$og_image_url")
+    fi
+  else
+    echo "No og:image found for $url"
+  fi
+done
+
+# Print failed URLs
+if [ ${#failed_urls[@]} -gt 0 ]; then
+  echo "Failed to warm up the following URLs:" >&2
+  for failed_url in "${failed_urls[@]}"; do
+    echo "$failed_url" >&2
+  done
+fi