Add apt regenconf hook to manage sury pinning policy on all

data/hooks/conf_regen/10-apt

@@ -0,0 +1,39 @@
+#!/bin/bash
+
+set -e
+
+do_pre_regen() {
+    pending_dir=$1
+
+    mkdir --parents "${pending_dir}/etc/apt/preferences.d"
+
+    for package in "php" "php-fpm" "php-mysql" "php-xml" "php-zip" "php-mbstring" "php-ldap" "php-gd" "php-curl" "php-bz2" "php-json" "php-sqlite3" "php-intl" "openssl" "libssl1.1" "libssl-dev"
+    do
+        echo "
+Package: $package
+Pin: origin \"packages.sury.org\" 
+Pin-Priority: -1" >> "/etc/apt/preferences.d/extra_php_version"
+    done
+}
+
+do_post_regen() {
+  regen_conf_files=$1
+}
+
+FORCE=${2:-0}
+DRY_RUN=${3:-0}
+
+case "$1" in
+  pre)
+    do_pre_regen $4
+    ;;
+  post)
+    do_post_regen $4
+    ;;
+  *)
+    echo "hook called with unknown argument \`$1'" >&2
+    exit 1
+    ;;
+esac
+
+exit 0