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-rw-r--r--apt-pkg/deb/debmetaindex.cc39
1 files changed, 31 insertions, 8 deletions
diff --git a/apt-pkg/deb/debmetaindex.cc b/apt-pkg/deb/debmetaindex.cc
index 260686cc7..ea32e6235 100644
--- a/apt-pkg/deb/debmetaindex.cc
+++ b/apt-pkg/deb/debmetaindex.cc
@@ -33,13 +33,13 @@ class APT_HIDDEN debReleaseIndexPrivate /*{{{*/
public:
struct APT_HIDDEN debSectionEntry
{
- std::string sourcesEntry;
- std::string Name;
- std::vector<std::string> Targets;
- std::vector<std::string> Architectures;
- std::vector<std::string> Languages;
- bool UsePDiffs;
- std::string UseByHash;
+ std::string const sourcesEntry;
+ std::string const Name;
+ std::vector<std::string> const Targets;
+ std::vector<std::string> const Architectures;
+ std::vector<std::string> const Languages;
+ bool const UsePDiffs;
+ std::string const UseByHash;
};
std::vector<debSectionEntry> DebEntries;
@@ -172,6 +172,7 @@ static void GetIndexTargetsFor(char const * const Type, std::string const &URI,
std::string const UseByHash = APT_T_CONFIG_STR("By-Hash", E->UseByHash);
std::string const CompressionTypes = APT_T_CONFIG_STR("CompressionTypes", DefCompressionTypes);
std::string KeepCompressedAs = APT_T_CONFIG_STR("KeepCompressedAs", "");
+ std::string const FallbackOf = APT_T_CONFIG_STR("Fallback-Of", "");
#undef APT_T_CONFIG_BOOL
#undef APT_T_CONFIG_STR
if (tplMetaKey.empty())
@@ -292,6 +293,7 @@ static void GetIndexTargetsFor(char const * const Type, std::string const &URI,
Options.insert(std::make_pair("REPO_URI", URI));
Options.insert(std::make_pair("TARGET_OF", Type));
Options.insert(std::make_pair("CREATED_BY", *T));
+ Options.insert(std::make_pair("FALLBACK_OF", FallbackOf));
Options.insert(std::make_pair("PDIFFS", UsePDiffs ? "yes" : "no"));
Options.insert(std::make_pair("BY_HASH", UseByHash));
Options.insert(std::make_pair("DEFAULTENABLED", DefaultEnabled ? "yes" : "no"));
@@ -616,7 +618,8 @@ bool debReleaseIndex::GetIndexes(pkgAcquire *Owner, bool const &GetAll)/*{{{*/
// special case for --print-uris
if (GetAll)
for (auto const &Target: GetIndexTargets())
- new pkgAcqIndex(Owner, TransactionManager, Target);
+ if (Target.Option(IndexTarget::FALLBACK_OF).empty())
+ new pkgAcqIndex(Owner, TransactionManager, Target);
return true;
}
@@ -949,6 +952,26 @@ class APT_HIDDEN debSLTypeDebian : public pkgSourceList::Type /*{{{*/
else if (optValue == false && tarItr != mytargets.end())
mytargets.erase(std::remove(mytargets.begin(), mytargets.end(), target), mytargets.end());
}
+ // if we can't order it in a 1000 steps we give up… probably a cycle
+ for (auto i = 0; i < 1000; ++i)
+ {
+ bool Changed = false;
+ for (auto t = mytargets.begin(); t != mytargets.end(); ++t)
+ {
+ std::string const fallback = _config->Find(std::string("Acquire::IndexTargets::") + Name + "::" + *t + "::Fallback-Of");
+ if (fallback.empty())
+ continue;
+ auto const faller = std::find(mytargets.begin(), mytargets.end(), fallback);
+ if (faller == mytargets.end() || faller < t)
+ continue;
+ Changed = true;
+ auto const tv = *t;
+ mytargets.erase(t);
+ mytargets.emplace_back(tv);
+ }
+ if (Changed == false)
+ break;
+ }
bool UsePDiffs = _config->FindB("Acquire::PDiffs", true);
{