return "";
}
/*}}}*/
+static std::string GetDiffIndexFileName(std::string const &Name) /*{{{*/
+{
+ return Name + ".diff/Index";
+}
+ /*}}}*/
+static std::string GetDiffIndexURI(IndexTarget const &Target) /*{{{*/
+{
+ return Target.URI + ".diff/Index";
+}
+ /*}}}*/
static bool MessageInsecureRepository(bool const isError, std::string const &msg)/*{{{*/
{
APT_CONST bool pkgAcqIndexDiffs::HashesRequired() const
{
- /* We don't always have the diff of the downloaded pdiff file.
- What we have for sure is hashes for the uncompressed file,
- but rred uncompresses them on the fly while parsing, so not handled here.
- Hashes are (also) checked while searching for (next) patch to apply. */
+ /* We can't check hashes of rred result as we don't know what the
+ hash of the file will be. We just know the hash of the patch(es),
+ the hash of the file they will apply on and the hash of the resulting
+ file. */
if (State == StateFetchDiff)
- return available_patches[0].download_hashes.empty() == false;
+ return true;
return false;
}
HashStringList pkgAcqIndexDiffs::GetExpectedHashes() const
we can check the rred result after all patches are applied as
we know the expected result rather than potentially apply more patches */
if (State == StateFetchDiff)
- return patch.download_hashes.empty() == false;
+ return true;
return State == StateApplyDiff;
}
HashStringList pkgAcqIndexMergeDiffs::GetExpectedHashes() const
// Acquire::Item::GetFinalFilename and specialisations for child classes /*{{{*/
std::string pkgAcquire::Item::GetFinalFilename() const
{
+ // Beware: Desc.URI is modified by redirections
return GetFinalFileNameFromURI(Desc.URI);
}
std::string pkgAcqDiffIndex::GetFinalFilename() const
{
- // the logic we inherent from pkgAcqBaseIndex isn't what we need here
- return pkgAcquire::Item::GetFinalFilename();
+ return GetFinalFileNameFromURI(GetDiffIndexURI(Target));
}
std::string pkgAcqIndex::GetFinalFilename() const
{
}
std::string pkgAcqDiffIndex::GetMetaKey() const
{
- return Target.MetaKey + ".diff/Index";
+ return GetDiffIndexFileName(Target.MetaKey);
}
/*}}}*/
//pkgAcqTransactionItem::TransactionState and specialisations for child classes /*{{{*/
if (filename.empty() == false)
{
new NoActionItem(Owner, *Target, filename);
- std::string const idxfilename = GetFinalFileNameFromURI(Target->URI + ".diff/Index");
+ std::string const idxfilename = GetFinalFileNameFromURI(GetDiffIndexURI(*Target));
if (FileExists(idxfilename))
new NoActionItem(Owner, *Target, idxfilename);
continue;
}
// check if we have patches available
- trypdiff &= TransactionManager->MetaIndexParser->Exists(Target->MetaKey + ".diff/Index");
+ trypdiff &= TransactionManager->MetaIndexParser->Exists(GetDiffIndexFileName(Target->MetaKey));
}
else
{
Debug = _config->FindB("Debug::pkgAcquire::Diffs",false);
Desc.Owner = this;
- Desc.Description = Target.Description + ".diff/Index";
+ Desc.Description = GetDiffIndexFileName(Target.Description);
Desc.ShortDesc = Target.ShortDesc;
- Desc.URI = Target.URI + ".diff/Index";
+ Desc.URI = GetDiffIndexURI(Target);
DestFile = GetPartialFileNameFromURI(Desc.URI);
return false;
}
+ for (auto const &patch: available_patches)
+ if (patch.result_hashes.usable() == false ||
+ patch.patch_hashes.usable() == false ||
+ patch.download_hashes.usable() == false)
+ {
+ if (Debug)
+ std::clog << "pkgAcqDiffIndex: " << IndexDiffFile << ": provides no usable hashes for " << patch.file
+ << " so fallback to complete download" << std::endl;
+ return false;
+ }
+
// patching with too many files is rather slow compared to a fast download
unsigned long const fileLimit = _config->FindI("Acquire::PDiffs::FileLimit", 0);
if (fileLimit != 0 && fileLimit < available_patches.size())
unsigned short const sizeLimitPercent = _config->FindI("Acquire::PDiffs::SizeLimit", 100);
if (sizeLimitPercent > 0 && TransactionManager->MetaIndexParser != nullptr)
{
- // compressed case
unsigned long long downloadSize = std::accumulate(available_patches.begin(),
available_patches.end(), 0llu, [](unsigned long long const T, DiffInfo const &I) {
return T + I.download_hashes.FileSize();
return false;
}
}
- // uncompressed case
- downloadSize = std::accumulate(available_patches.begin(),
- available_patches.end(), 0llu, [](unsigned long long const T, DiffInfo const &I) {
- return T + I.patch_hashes.FileSize();
- });
- if (downloadSize != 0)
- {
- unsigned long long const downloadSizeIdx = ServerSize;
- unsigned long long const sizeLimit = downloadSizeIdx * sizeLimitPercent;
- if ((sizeLimit/100) < downloadSize)
- {
- if (Debug)
- std::clog << "Need " << downloadSize << " uncompressed bytes (Limit is " << (sizeLimit/100) << ", "
- << "original is " << downloadSizeIdx << ") so fallback to complete download" << std::endl;
- return false;
- }
- }
}
// we have something, queue the diffs
for (std::vector<pkgAcqIndexMergeDiffs *>::const_iterator I = allPatches->begin();
I != allPatches->end(); ++I)
if ((*I)->State == StateErrorDiff)
+ {
+ State = StateErrorDiff;
return;
+ }
// first failure means we should fallback
State = StateErrorDiff;
if (Debug)
std::clog << "Falling back to normal index file acquire" << std::endl;
RenameOnError(PDiffError);
- std::string const patchname = GetPartialFileNameFromURI(Desc.URI);
- if (RealFileExists(patchname))
- Rename(patchname, patchname + ".FAILED");
+ if (RealFileExists(DestFile))
+ Rename(DestFile, DestFile + ".FAILED");
std::string const UnpatchedFile = GetExistingFilename(GetPartialFileNameFromURI(Target.URI));
if (UnpatchedFile.empty() == false && FileExists(UnpatchedFile))
Rename(UnpatchedFile, UnpatchedFile + ".FAILED");
{
if(Debug)
std::clog << "Another patch failed already, no point in processing this one." << std::endl;
+ State = StateErrorDiff;
return;
}
std::string const UnpatchedFile = GetExistingFilename(UncompressedUnpatchedFile);
if (UnpatchedFile.empty())
{
- _error->Fatal("Unpatched file %s doesn't exist (anymore)!", UnpatchedFile.c_str());
+ _error->Fatal("Unpatched file %s doesn't exist (anymore)!", UncompressedUnpatchedFile.c_str());
+ State = StateErrorDiff;
return;
}
std::string const PatchFile = GetMergeDiffsPatchFileName(UnpatchedFile, patch.file);
DestFile = GetPartialFileNameFromURI(URI);
NextCompressionExtension(CurrentCompressionExtension, CompressionExtensions, false);
+ // store file size of the download to ensure the fetcher gives
+ // accurate progress reporting
+ FileSize = GetExpectedHashes().FileSize();
+
if (CurrentCompressionExtension == "uncompressed")
{
Desc.URI = URI;
projects / apt.git / blobdiff