From c81a12d76ccc07cbcf83e3bd99bd310ad9086991 Mon Sep 17 00:00:00 2001
From: Matthias Puchstein <matthias@puchstein.bayern>
Date: Wed, 21 May 2025 16:36:28 +0200
Subject: [PATCH] added a mirrortimestamp check

---
 scripts/alhp-check.sh | 49 +++++++++++++++++++++++++++++++++++++++++--
 1 file changed, 47 insertions(+), 2 deletions(-)

diff --git a/scripts/alhp-check.sh b/scripts/alhp-check.sh
index 6c25cbd..5de0e77 100644
--- a/scripts/alhp-check.sh
+++ b/scripts/alhp-check.sh
@@ -1,5 +1,49 @@
 #!/usr/bin/bash
 
+set -o pipefail
+
+ALHP_STATS_URL='https://api.alhp.dev/stats'
+ALHP_BQ_URL='https://api.alhp.dev/packages?limit=0&offset=0&status=queued&status=building'
+
+mirrorlistsOutOfDate(){
+  local max_mirrors="${1:-1}"
+  local mirrorlists mirrorlist mirror_urls mirror_url all_mirrors=() alhp_timestamp
+  local -A mirror_timestamps=()
+
+  readarray -t mirrorlists < <(awk '
+      /^\s*\[.*x86-64-v[2-4].*\]/ { in_repo = 1; next }
+      in_repo && /^\s*Include\s*=\s*/ {
+        match($0, /Include\s*=\s*(.*)/, arr)
+        print arr[1]
+        in_repo = 0
+      }
+    ' /etc/pacman.conf | sort -u
+  )
+
+  for mirrorlist in ${mirrorlists[@]}; do
+    readarray -t mirror_urls < <(
+      grep '^Server =' "$mirrorlist" | \
+      sed -E 's/^Server = (https?:\/\/[^$]+).*/\1\/lastupdate/'
+    )
+    all_mirrors+=(${mirror_urls[@]})
+  done
+
+  mapfile -t all_mirrors < <(printf '%s\n' ${all_mirrors[@]} | sort -u | head -n $max_mirrors)
+  #TODO: fork curls for better performance
+  for mirror_url in "${all_mirrors[@]}"; do
+    # curl quietly, fail silently, timeout 5s
+    timestamp=$(curl -fs --max-time 5 "$mirror_url" || echo "error")
+    mirror_timestamps["$mirror_url"]=$timestamp
+  done
+  alhp_timestamp=$(curl -fs --max-time 5 $ALHP_STATS_URL | jq .last_mirror_timestamp || echo "error")
+
+  for url in "${!mirror_timestamps[@]}"; do
+    if [[ ${mirror_timestamps[$url]} -lt $alhp_timestamp ]]; then
+      echo "Mirror: $url outdated."
+    fi
+  done
+}
+
 updatesAvailable() {
   readarray -t repos < <(grep '^\[' /etc/pacman.conf | sed -e 's/[][]//g' | grep -E 'x86-64-v[2-4]')
 
@@ -29,7 +73,7 @@ updatesAvailable() {
   done < <(pacman -Sl ${repos[@]})
 
   repo_query=$(printf '&repo=%s' "${repos[@]}")
-  api_url="https://api.alhp.dev/packages?limit=0&offset=0&status=queued&status=building${repo_query}"
+  api_url="$ALHP_BQ_URL${repo_query}"
 
   if [[ -n $check_pkg ]]; then
     building_pkgs=$(curl -s $api_url \
@@ -47,7 +91,6 @@ updatesAvailable() {
     else
       printf '%s\n' "${matches[@]}"
     fi
-
   else
     matches=()
     while read -r pkgname; do
@@ -64,4 +107,6 @@ updatesAvailable() {
   fi
 }
 
+
+mirrorlistsOutOfDate
 updatesAvailable $@