Use a bash script for creating the tarball instead

.gitignore

@@ -1,5 +1,6 @@
 *packages/*.PKGBUILD
 *packages/*.patch
+*packages/.need_mktar
 *zst*
 *db*
 *tar.gz*

aurmake

@@ -3,17 +3,6 @@
 
 source .OPT || exit 1
 
-get_checksum() {
-    summary() {
-        printf "%s\n" "$(stat -c '%y' "$1") $(md5sum "$1")"
-    }
-
-    export -f summary
-    find packages/ -name "*.tar*" -type f -exec bash -c 'summary "$0"' {} \; | LC_ALL=C sort | md5sum
-}
-
-[ -d "packages/" ] && sum1="$(get_checksum)"
-
 if [ -x "$(command -v repo-add)" ]; then
     [ ! -d "packages/" ] && printf "No packages, exiting..\n" >> /dev/stderr && exit 1
 
@@ -23,6 +12,7 @@ if [ -x "$(command -v repo-add)" ]; then
     rm -f ./*"${SERVER_NAME}"*
     repo-add -s -R "${SERVER_NAME}.db.tar.gz" *.pkg.tar.zst > /tmp/repo-add.log
     find . -maxdepth 1 -type l -delete
+    [ -f "${SERVER_NAME}.db.tar.gz" ] && diff -up "${SERVER_NAME}.db.tar.gz" "${SERVER_NAME}.db" > /dev/null && mktar=true
     cp "${SERVER_NAME}.db.tar.gz" "${SERVER_NAME}.db"
     cd .. || exit 1
 
@@ -31,11 +21,7 @@ else
     printf "Warning: repo-add not found, will only copy viewer.\n" >> /dev/stderr
 fi
 
-if [ -d "packages/" ] && [ "$sum1" != "$(get_checksum)" ]; then
-    tar -cf packages.tar packages
-    gzip -c packages.tar > packages/packages.tar.gz
-    rm -f packages.tar
-fi
+[ "$mktar" = "true" ] && touch packages/.need_mktar
 
 if [ "$1" = "publish" ]; then
     [ ! -x "$(command -v rsync)" ] && printf "rsync not found.\n" > /dev/stderr && exit 1

packages/index.php

@@ -133,6 +133,14 @@ function main() {
         }
 
         print "\t\t\t</table>\n";
+    } else if ($request == "archive") {
+        exec("./viewer/archive.sh", $output);
+
+        if (file_exists("packages.tar.gz")) {
+            header("Location: packages.tar.gz");
+        }
+
+        exit();
     } else if ($request == "view" && $query == '') {
         printHead($self, "speedie-aur", "speedie-aur", "My unofficial Arch Linux repository containing many useful packages");
 
@@ -152,7 +160,7 @@ function main() {
         print "\t\t\t<p>See <a href=\"lister.php\">this page</a> for more information.</p>\n";
         print "\t\t<h2>Download</h2>\n";
         print "\t\t\t<p>If you wish, you can download the full packages/ directory containing all packages, the database and the PHP itself. This may be useful if you want to have a local repository that won't get updated, or you want to contribute back.</p>\n";
-        print "\t\t\t<p>A tar.gz archive can be found <a href=\"packages/packages.tar.gz\">here</a>.</p>\n";
+        print "\t\t\t<p>A tar.gz archive can be found <a href=\"$self?action=archive\">here</a>.</p>\n";
     } else if ($request == "view" && $query != '') {
         $packageCount = 0;
         $packageVersions = array();

packages/viewer/archive.sh

@@ -0,0 +1,9 @@
+#!/usr/bin/env bash
+
+dir="$(dirname "$0")"
+
+if [ -f "$dir/../.need_mktar" ]; then
+    rm -f "$dir/../.need_mktar"
+    mkdir -p packages/ ; cp "$dir/../"* packages/ ; cp -r viewer lister packages/
+    tar -cf packages.tar packages/ && gzip packages.tar
+fi