From a628ca5256b4a2f3ae300697b17adf150b6e17b0 Mon Sep 17 00:00:00 2001 From: David Kalnischkies Date: Sun, 27 Dec 2015 17:04:33 +0100 Subject: [PATCH] allow repositories to forbid arch:all for specific index targets MIME-Version: 1.0 Content-Type: text/plain; charset=utf8 Content-Transfer-Encoding: 8bit Debian has a Packages file for arch:all already, but the arch:any files contain arch:all packages as well, so downloading it would be a total waste of resources. Getting this solved is on the list of things to do, but it is also the hardest part – for index targets like Contents the situation is much easier and less server/client implementations are involved so we might not want to stall them. A repository can now declare via: No-Support-for-Architecture-all: Packages that even if an arch:all Packages exists, it shouldn't be downloaded, so that support for Contents files can be added now. See also 1dd20368486820efb6ef4476ad739e967174bec4 for the implementation of downloading arch:all index targets, which this is limiting. The field uses the name of the target from the apt configuration for simplicity and is negative by design as this field is intended to be supported/needed only for a "short" time (one or two Debian releases). While this commit theoretically supports any target, its expected to only see "Packages" as a value in reality. --- apt-pkg/acquire-item.cc | 10 ++++-- apt-pkg/deb/debmetaindex.cc | 13 ++++++++ apt-pkg/deb/debmetaindex.h | 1 + apt-pkg/metaindex.cc | 8 +++++ apt-pkg/metaindex.h | 1 + test/integration/test-acquire-binary-all | 40 ++++++++++++++++++++++++ 6 files changed, 70 insertions(+), 3 deletions(-) diff --git a/apt-pkg/acquire-item.cc b/apt-pkg/acquire-item.cc index 7f31d1449..ffe5bd1c4 100644 --- a/apt-pkg/acquire-item.cc +++ b/apt-pkg/acquire-item.cc @@ -1042,9 +1042,13 @@ void pkgAcqMetaBase::QueueIndexes(bool const verify) /*{{{*/ // download time, bandwidth and diskspace for nothing, BUT Debian doesn't feature all // in the set of supported architectures, so we can filter based on this property rather // than invent an entirely new flag we would need to carry for all of eternity. - if (Target->Option(IndexTarget::ARCHITECTURE) == "all" && - TransactionManager->MetaIndexParser->IsArchitectureSupported("all") == false) - continue; + if (Target->Option(IndexTarget::ARCHITECTURE) == "all") + { + if (TransactionManager->MetaIndexParser->IsArchitectureSupported("all") == false) + continue; + if (TransactionManager->MetaIndexParser->IsArchitectureAllSupportedFor(*Target) == false) + continue; + } bool trypdiff = Target->OptionBool(IndexTarget::PDIFFS); if (verify == true) diff --git a/apt-pkg/deb/debmetaindex.cc b/apt-pkg/deb/debmetaindex.cc index c8026aedf..46a9f9c97 100644 --- a/apt-pkg/deb/debmetaindex.cc +++ b/apt-pkg/deb/debmetaindex.cc @@ -50,6 +50,7 @@ class APT_HIDDEN debReleaseIndexPrivate /*{{{*/ time_t ValidUntilMax; std::vector Architectures; + std::vector NoSupportForAll; debReleaseIndexPrivate() : CheckValidUntil(metaIndex::TRI_UNSET), ValidUntilMin(0), ValidUntilMax(0) {} }; @@ -346,6 +347,11 @@ bool debReleaseIndex::Load(std::string const &Filename, std::string * const Erro if (archs.empty() == false) d->Architectures = VectorizeString(archs, ' '); } + { + std::string const targets = Section.FindS("No-Support-for-Architecture-all"); + if (targets.empty() == false) + d->NoSupportForAll = VectorizeString(targets, ' '); + } bool FoundHashSum = false; bool FoundStrongHashSum = false; @@ -624,6 +630,13 @@ bool debReleaseIndex::IsArchitectureSupported(std::string const &arch) const/*{{ return std::find(d->Architectures.begin(), d->Architectures.end(), arch) != d->Architectures.end(); } /*}}}*/ +bool debReleaseIndex::IsArchitectureAllSupportedFor(IndexTarget const &target) const/*{{{*/ +{ + if (d->NoSupportForAll.empty()) + return true; + return std::find(d->NoSupportForAll.begin(), d->NoSupportForAll.end(), target.Option(IndexTarget::CREATED_BY)) == d->NoSupportForAll.end(); +} + /*}}}*/ std::vector *debReleaseIndex::GetIndexFiles() /*{{{*/ { if (Indexes != NULL) diff --git a/apt-pkg/deb/debmetaindex.h b/apt-pkg/deb/debmetaindex.h index 538f13f33..2bb9ed693 100644 --- a/apt-pkg/deb/debmetaindex.h +++ b/apt-pkg/deb/debmetaindex.h @@ -59,6 +59,7 @@ class APT_HIDDEN debReleaseIndex : public metaIndex virtual bool IsTrusted() const APT_OVERRIDE; bool IsArchitectureSupported(std::string const &arch) const; + bool IsArchitectureAllSupportedFor(IndexTarget const &target) const; void AddComponent(std::string const &sourcesEntry, bool const isSrc, std::string const &Name, diff --git a/apt-pkg/metaindex.cc b/apt-pkg/metaindex.cc index fe948243e..6e5792b78 100644 --- a/apt-pkg/metaindex.cc +++ b/apt-pkg/metaindex.cc @@ -111,3 +111,11 @@ bool metaIndex::IsArchitectureSupported(std::string const &arch) const /*{{{*/ return true; } /*}}}*/ +bool metaIndex::IsArchitectureAllSupportedFor(IndexTarget const &target) const/*{{{*/ +{ + debReleaseIndex const * const deb = dynamic_cast(this); + if (deb != NULL) + return deb->IsArchitectureAllSupportedFor(target); + return true; +} + /*}}}*/ diff --git a/apt-pkg/metaindex.h b/apt-pkg/metaindex.h index 3bfc2684d..3a624e86d 100644 --- a/apt-pkg/metaindex.h +++ b/apt-pkg/metaindex.h @@ -110,6 +110,7 @@ public: // FIXME: make virtual on next abi break bool IsArchitectureSupported(std::string const &arch) const; + bool IsArchitectureAllSupportedFor(IndexTarget const &target) const; }; #endif diff --git a/test/integration/test-acquire-binary-all b/test/integration/test-acquire-binary-all index 49bbc714e..d428c106d 100755 --- a/test/integration/test-acquire-binary-all +++ b/test/integration/test-acquire-binary-all @@ -10,15 +10,26 @@ buildsimplenativepackage 'foo-1' 'all' '2' 'unstable' buildsimplenativepackage 'foo-2' 'amd64' '2' 'unstable' setupaptarchive --no-update +cat >rootdir/etc/apt/apt.conf.d/get-contents < lists.before testsuccess grep '_binary-all_Packages' lists.before +testsuccess grep '_Contents-all\.' lists.before configarchitecture 'amd64' 'i386' testsuccessequal "All packages are up to date. @@ -27,20 +38,35 @@ testfileequal lists.before "$(listcurrentlistsdirectory)" testequal 'foo-1 foo-2' aptcache pkgnames foo- +rm -rf rootdir/var/lib/apt/lists +msgmsg 'Releasefile has all, but forbids its usage' +configarchitecture 'amd64' +sed -i '/^Architectures: / a\ +No-Support-for-Architecture-all: Packages' $(find ./aptarchive -name 'Release') +signreleasefiles +testsuccess apt update +cp rootdir/tmp/testsuccess.output aptupdate.output +testfailure grep '^Get.* all Packages ' aptupdate.output +testsuccess grep '^Get.* all Contents ' aptupdate.output +sed -i '/^No-Support-for-Architecture-all: / d' $(find ./aptarchive -name 'Release') + rm -rf rootdir/var/lib/apt/lists msgmsg 'Releasefile with Architectures field but without all' +configarchitecture 'amd64' 'i386' getarchitecturesfromreleasefile() { echo "$(getarchitectures)"; } generatereleasefiles signreleasefiles testsuccessequal 'All packages are up to date.' apt update -o quiet::NoProgress=1 cp rootdir/tmp/testsuccess.output aptupdate.output testfailure grep '^Get.* all Packages ' aptupdate.output +testfailure grep '^Get.* all Contents ' aptupdate.output testequal 'foo-2' aptcache pkgnames foo- configarchitecture 'amd64' testsuccess apt update cp rootdir/tmp/testsuccess.output aptupdate.output testfailure grep '^Get.* all Packages ' aptupdate.output +testfailure grep '^Get.* all Contents ' aptupdate.output testequal 'foo-2' aptcache pkgnames foo- rm -rf rootdir/var/lib/apt/lists @@ -48,9 +74,11 @@ msgmsg 'Releasefile without Architectures field' getarchitecturesfromreleasefile() { echo -n ''; } generatereleasefiles signreleasefiles +testfailure grep '^Architectures: ' $(find ./aptarchive -name 'Release') testsuccess apt update cp rootdir/tmp/testsuccess.output aptupdate.output testsuccess grep '^Get.* all Packages ' aptupdate.output +testsuccess grep '^Get.* all Contents ' aptupdate.output testequal 'foo-1 foo-2' aptcache pkgnames foo- @@ -60,6 +88,18 @@ testfailure apt update testequal 'foo-1 foo-2' aptcache pkgnames foo- +rm -rf rootdir/var/lib/apt/lists +msgmsg 'Releasefile no Architectures all, but forbids its usage' +configarchitecture 'amd64' +sed -i '/^Date: / a\ +No-Support-for-Architecture-all: Packages' $(find ./aptarchive -name 'Release') +signreleasefiles +testsuccess apt update +cp rootdir/tmp/testsuccess.output aptupdate.output +testfailure grep '^Get.* all Packages ' aptupdate.output +testsuccess grep '^Get.* all Contents ' aptupdate.output +sed -i '/^No-Support-for-Architecture-all: / d' $(find ./aptarchive -name 'Release') + msgmsg 'No Releasefile' rm -rf rootdir/var/lib/apt/lists find aptarchive -name '*Release*' -delete -- 2.45.2