apt/apt-pkg/deb/deblistparser.h, branch 3.1.11

Implement architecture variants

2025-10-25T18:42:14Z

Architecture variants are children of an architecture that share the same ABI but are optimized for different ISA levels. They are available in Ubuntu 25.10 and newer, and not supported in Debian or other distributions. A deb built for a variant contains the Architecture-Variant field, and the Architecture field points to the baseline, for example: Architecture: amd64 Architecture-Variant: amd64v3 However, the apt-get indextargets command reports the variant in the Architecture: field, and most of the code in APT presents the variant as the architecture. There are two types of variants: 1. Standalone variants are recorded in the Architectures field of the Release file as if they were a real architecture: Architectures: amd64 amd64v3 Standalone architecture variants only fetch the standalone architecture variant's Packages file. To do this, this patch changes the code such that the variants indextargets "supplant" the base targets. This may have complicated outcomes on the apt-get indextargets command. 2. Other variants can only be identified by their files being recorded with hashes in the Release file. APT fetches both the base architecture's as well as the variant's Packages file. Variants are configured in the APT::Architecture-Variants list. Image builders may want to build specific variant images using APT::Architecture-Variants { "amd64v3"; } But this commit also implements an automatic discovery mechanism using the varianttable and /proc/cpuinfo. APT::Architecture-Variants "auto";

debListParser: Cache `essential` and `myArch` more

2025-08-26T11:49:18Z

Lookup these variables in the constructor once, rather than once per package. This requires a bit of care as debListParser::UsePackage() defaults to "all" for essential when unset, hence we simply change its == "all" comparisons to == "all" || .empty().# This removes any per-paragraph configuration lookups from the file parser. Also parse myArch from ParseProvides down to ParseDepends() as that call ended up causing it to query APT::Architecture *again* since the function we call is static. Together, the removed config lookups safe about 2.3% of cache generation runtime.

Add missing #include

2025-02-15T15:57:45Z

Drop APT::StringView

2025-02-14T18:45:12Z

Drop APT_DEPRECATED usage

2025-01-05T22:16:08Z

C++14 includes the standard attribute, so we can use that instead. Note that we drop the deprecation of {Pkg,Dep}Iterator::operator<< as this is ignored (a friends declaration must be a definition to have attributes) very noisily by GCC >= 12 and the methods can be somewhat useful in debugging if you are to lazy to get APT::Pretty{Pkg,Dep}.

Drop usage of macro APT_OVERRIDE for simple override

2025-01-05T22:16:08Z

We were rather inconsistent in using it and as our public headers contain deduction guides (a c++17 feature) it seems silly to try to hide a c++11 feature in a macro, so lets stop this charade and drop the macro and while we are changing all these lines lets apply [[nodiscard]] (another c++17 feature) and other suggestions from clang-tidy and formatting for a little more consistency.

Ensure we can build with APT_PKG_ABI > 601

2025-01-05T18:29:47Z

There were some references to APT::StringView that don't make much sense anymore.

Fix accidental ABI break in debListParser::ParseDepends

2024-11-28T08:03:02Z

The version that accepted APT::StringView was marked public.

apt-pkg/deb/deblistparser.h: APT::StringView -> std::string_view

2024-11-12T19:36:21Z

apt-pkg/pkgcachegen.cc, apt-pkg/pkgcachegen.h: APT::StringView -> std::string_view

2024-11-12T19:36:20Z