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-rw-r--r--apt-pkg/acquire-item.cc86
1 files changed, 50 insertions, 36 deletions
diff --git a/apt-pkg/acquire-item.cc b/apt-pkg/acquire-item.cc
index 1b76f1b7a..53f7f3295 100644
--- a/apt-pkg/acquire-item.cc
+++ b/apt-pkg/acquire-item.cc
@@ -999,6 +999,10 @@ void pkgAcqMetaBase::QueueIndexes(bool const verify) /*{{{*/
// at this point the real Items are loaded in the fetcher
ExpectedAdditionalItems = 0;
+ bool metaBaseSupportsByHash = false;
+ if (TransactionManager != NULL && TransactionManager->MetaIndexParser != NULL)
+ metaBaseSupportsByHash = TransactionManager->MetaIndexParser->GetSupportsAcquireByHash();
+
for (std::vector <IndexTarget>::iterator Target = IndexTargets.begin();
Target != IndexTargets.end();
++Target)
@@ -1028,6 +1032,15 @@ void pkgAcqMetaBase::QueueIndexes(bool const verify) /*{{{*/
if (types.empty() == false)
{
std::ostringstream os;
+ // add the special compressiontype byhash first if supported
+ std::string const useByHashConf = Target->Option(IndexTarget::BY_HASH);
+ bool useByHash = false;
+ if(useByHashConf == "force")
+ useByHash = true;
+ else
+ useByHash = StringToBool(useByHashConf) == true && metaBaseSupportsByHash;
+ if (useByHash == true)
+ os << "by-hash ";
std::copy(types.begin(), types.end()-1, std::ostream_iterator<std::string>(os, " "));
os << *types.rbegin();
Target->Options["COMPRESSIONTYPES"] = os.str();
@@ -2437,29 +2450,58 @@ pkgAcqIndex::pkgAcqIndex(pkgAcquire * const Owner,
}
/*}}}*/
// AcqIndex::Init - defered Constructor /*{{{*/
-void pkgAcqIndex::Init(string const &URI, string const &URIDesc,
- string const &ShortDesc)
+static void NextCompressionExtension(std::string &CurrentCompressionExtension, std::string &CompressionExtensions, bool const preview)
{
- Stage = STAGE_DOWNLOAD;
-
- DestFile = GetPartialFileNameFromURI(URI);
-
size_t const nextExt = CompressionExtensions.find(' ');
if (nextExt == std::string::npos)
{
CurrentCompressionExtension = CompressionExtensions;
- CompressionExtensions.clear();
+ if (preview == false)
+ CompressionExtensions.clear();
}
else
{
CurrentCompressionExtension = CompressionExtensions.substr(0, nextExt);
- CompressionExtensions = CompressionExtensions.substr(nextExt+1);
+ if (preview == false)
+ CompressionExtensions = CompressionExtensions.substr(nextExt+1);
}
+}
+void pkgAcqIndex::Init(string const &URI, string const &URIDesc,
+ string const &ShortDesc)
+{
+ Stage = STAGE_DOWNLOAD;
+
+ DestFile = GetPartialFileNameFromURI(URI);
+ NextCompressionExtension(CurrentCompressionExtension, CompressionExtensions, false);
if (CurrentCompressionExtension == "uncompressed")
{
Desc.URI = URI;
}
+ else if (CurrentCompressionExtension == "by-hash")
+ {
+ NextCompressionExtension(CurrentCompressionExtension, CompressionExtensions, true);
+ if(unlikely(TransactionManager->MetaIndexParser == NULL || CurrentCompressionExtension.empty()))
+ return;
+ if (CurrentCompressionExtension != "uncompressed")
+ {
+ Desc.URI = URI + '.' + CurrentCompressionExtension;
+ DestFile = DestFile + '.' + CurrentCompressionExtension;
+ }
+
+ HashStringList const Hashes = GetExpectedHashes();
+ HashString const * const TargetHash = Hashes.find(NULL);
+ if (unlikely(TargetHash == nullptr))
+ return;
+ std::string const ByHash = "/by-hash/" + TargetHash->HashType() + "/" + TargetHash->HashValue();
+ size_t const trailing_slash = Desc.URI.find_last_of("/");
+ if (unlikely(trailing_slash == std::string::npos))
+ return;
+ Desc.URI = Desc.URI.replace(
+ trailing_slash,
+ Desc.URI.substr(trailing_slash+1).size()+1,
+ ByHash);
+ }
else if (unlikely(CurrentCompressionExtension.empty()))
return;
else
@@ -2468,8 +2510,6 @@ void pkgAcqIndex::Init(string const &URI, string const &URIDesc,
DestFile = DestFile + '.' + CurrentCompressionExtension;
}
- if(TransactionManager->MetaIndexParser != NULL)
- InitByHashIfNeeded();
Desc.Description = URIDesc;
Desc.Owner = this;
@@ -2478,32 +2518,6 @@ void pkgAcqIndex::Init(string const &URI, string const &URIDesc,
QueueURI(Desc);
}
/*}}}*/
-// AcqIndex::AdjustForByHash - modify URI for by-hash support /*{{{*/
-void pkgAcqIndex::InitByHashIfNeeded()
-{
- std::string const useByHash = Target.Option(IndexTarget::BY_HASH);
- if(useByHash == "force" || (StringToBool(useByHash) == true &&
- TransactionManager->MetaIndexParser->GetSupportsAcquireByHash()))
- {
- HashStringList const Hashes = GetExpectedHashes();
- if(Hashes.usable())
- {
- // FIXME: should we really use the best hash here? or a fixed one?
- HashString const * const TargetHash = Hashes.find("");
- std::string const ByHash = "/by-hash/" + TargetHash->HashType() + "/" + TargetHash->HashValue();
- size_t const trailing_slash = Desc.URI.find_last_of("/");
- Desc.URI = Desc.URI.replace(
- trailing_slash,
- Desc.URI.substr(trailing_slash+1).size()+1,
- ByHash);
- } else {
- _error->Warning(
- "Fetching ByHash requested but can not find record for %s",
- GetMetaKey().c_str());
- }
- }
-}
- /*}}}*/
// AcqIndex::Custom600Headers - Insert custom request headers /*{{{*/
// ---------------------------------------------------------------------
/* The only header we use is the last-modified header. */