From 08762e0e4e2923360339eeb4d8ed26a00d7f1de5 Mon Sep 17 00:00:00 2001
From: Julian Andres Klode <julian.klode@canonical.com>
Date: Thu, 15 Aug 2019 13:35:01 +0200
Subject: Add ?essential pattern

This matches all packages where at least one of the versions
is marked essential; or well, whenver apt considers a package
essential.
---
 apt-pkg/cachefilter-patterns.cc | 2 ++
 1 file changed, 2 insertions(+)

(limited to 'apt-pkg/cachefilter-patterns.cc')

diff --git a/apt-pkg/cachefilter-patterns.cc b/apt-pkg/cachefilter-patterns.cc
index a180cf78e..ea35b9c46 100644
--- a/apt-pkg/cachefilter-patterns.cc
+++ b/apt-pkg/cachefilter-patterns.cc
@@ -216,6 +216,8 @@ std::unique_ptr<APT::CacheFilter::Matcher> PatternParser::aPattern(std::unique_p
       return std::make_unique<Patterns::PackageIsBroken>(file);
    if (node->matches("?config-files", 0, 0))
       return std::make_unique<Patterns::PackageIsConfigFiles>();
+   if (node->matches("?essential", 0, 0))
+      return std::make_unique<Patterns::PackageIsEssential>();
    if (node->matches("?false", 0, 0))
       return std::make_unique<APT::CacheFilter::FalseMatcher>();
    if (node->matches("?garbage", 0, 0))
-- 
cgit v1.2.3