From e13ee75d4b20ee94e8da1b7f2be61788029b6875 Mon Sep 17 00:00:00 2001
From: Julian Andres Klode <julian.klode@canonical.com>
Date: Mon, 27 Jan 2025 15:50:42 +0100
Subject: metaindex: Support loading without filename

---
 apt-pkg/metaindex.cc | 13 +++++++++++++
 apt-pkg/metaindex.h  |  1 +
 2 files changed, 14 insertions(+)

diff --git a/apt-pkg/metaindex.cc b/apt-pkg/metaindex.cc
index f3df9b159..10c93de15 100644
--- a/apt-pkg/metaindex.cc
+++ b/apt-pkg/metaindex.cc
@@ -1,6 +1,7 @@
 // Include Files                                                       /*{{{*/
 #include <config.h>
 
+#include <apt-pkg/fileutl.h>
 #include <apt-pkg/indexfile.h>
 #include <apt-pkg/metaindex.h>
 #include <apt-pkg/pkgcachegen.h>
@@ -151,3 +152,15 @@ bool metaIndex::HasSupportForComponent(std::string const &) const/*{{{*/
    return true;
 }
 									/*}}}*/
+bool metaIndex::Load(std::string *ErrorText) /*{{{*/
+{
+   auto debmeta = dynamic_cast<debReleaseIndex *>(this);
+   if (not debmeta)
+      return false;
+   if (auto f = debmeta->MetaIndexFile("InRelease"); FileExists(f))
+      return Load(f, ErrorText);
+   if (auto f = debmeta->MetaIndexFile("Release"); FileExists(f))
+      return Load(f, ErrorText);
+   return false;
+}
+									/*}}}*/
diff --git a/apt-pkg/metaindex.h b/apt-pkg/metaindex.h
index e2a773c31..198c3f34a 100644
--- a/apt-pkg/metaindex.h
+++ b/apt-pkg/metaindex.h
@@ -96,6 +96,7 @@ public:
    virtual std::vector<pkgIndexFile *> *GetIndexFiles() = 0;
    virtual bool IsTrusted() const = 0;
    virtual bool Load(std::string const &Filename, std::string * const ErrorText) = 0;
+   bool Load(std::string *const ErrorText);
    /** @return a new metaIndex object based on this one, but without information from #Load */
    virtual metaIndex * UnloadedClone() const = 0;
    // the given metaIndex is potentially invalid after this call and should be deleted
-- 
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