}
// we have something, queue the next diff
- if(found)
+ if(found)
{
// queue the diffs
string::size_type const last_space = Description.rfind(" ");
if(last_space != string::npos)
Description.erase(last_space, Description.size()-last_space);
- new pkgAcqIndexDiffs(Owner, RealURI, Description, Desc.ShortDesc,
- ExpectedHash, ServerSha1, available_patches);
+
+ /* decide if we should download patches one by one or in one go:
+ The first is good if the server merges patches, but many don't so client
+ based merging can be attempt in which case the second is better.
+ "bad things" will happen if patches are merged on the server,
+ but client side merging is attempt as well */
+ bool pdiff_merge = _config->FindB("Acquire::PDiffs::Merge", true);
+ if (pdiff_merge == true)
+ {
+ // this perl script is provided by apt-file
+ pdiff_merge = FileExists(_config->FindFile("Dir::Bin::rred", "/usr/bin/diffindex-rred"));
+ if (pdiff_merge == true)
+ {
+ // reprepro adds this flag if it has merged patches on the server
+ std::string const precedence = Tags.FindS("X-Patch-Precedence");
+ pdiff_merge = (precedence != "merged");
+ }
+ }
+
+ if (pdiff_merge == false)
+ new pkgAcqIndexDiffs(Owner, RealURI, Description, Desc.ShortDesc,
+ ExpectedHash, ServerSha1, available_patches);
+ else
+ {
+ std::vector<pkgAcqIndexMergeDiffs*> *diffs = new std::vector<pkgAcqIndexMergeDiffs*>(available_patches.size());
+ for(size_t i = 0; i < available_patches.size(); ++i)
+ (*diffs)[i] = new pkgAcqIndexMergeDiffs(Owner, RealURI, Description, Desc.ShortDesc, ExpectedHash,
+ available_patches[i], diffs);
+ }
+
Complete = false;
Status = StatDone;
Dequeue();
}
}
/*}}}*/
+// AcqIndexMergeDiffs::AcqIndexMergeDiffs - Constructor /*{{{*/
+pkgAcqIndexMergeDiffs::pkgAcqIndexMergeDiffs(pkgAcquire *Owner,
+ string const &URI, string const &URIDesc,
+ string const &ShortDesc, HashString const &ExpectedHash,
+ DiffInfo const &patch,
+ std::vector<pkgAcqIndexMergeDiffs*> const * const allPatches)
+ : Item(Owner), RealURI(URI), ExpectedHash(ExpectedHash),
+ patch(patch),allPatches(allPatches), State(StateFetchDiff)
+{
+
+ DestFile = _config->FindDir("Dir::State::lists") + "partial/";
+ DestFile += URItoFileName(URI);
+
+ Debug = _config->FindB("Debug::pkgAcquire::Diffs",false);
+
+ Description = URIDesc;
+ Desc.Owner = this;
+ Desc.ShortDesc = ShortDesc;
+
+ Desc.URI = string(RealURI) + ".diff/" + patch.file + ".gz";
+ Desc.Description = Description + " " + patch.file + string(".pdiff");
+ DestFile = _config->FindDir("Dir::State::lists") + "partial/";
+ DestFile += URItoFileName(RealURI + ".diff/" + patch.file);
+
+ if(Debug)
+ std::clog << "pkgAcqIndexMergeDiffs: " << Desc.URI << std::endl;
+
+ QueueURI(Desc);
+}
+ /*}}}*/
+void pkgAcqIndexMergeDiffs::Failed(string Message,pkgAcquire::MethodConfig *Cnf)/*{{{*/
+{
+ if(Debug)
+ std::clog << "pkgAcqIndexMergeDiffs failed: " << Desc.URI << " with " << Message << std::endl;
+ Complete = false;
+ Status = StatDone;
+ Dequeue();
+
+ // check if we are the first to fail, otherwise we are done here
+ State = StateDoneDiff;
+ for (std::vector<pkgAcqIndexMergeDiffs *>::const_iterator I = allPatches->begin();
+ I != allPatches->end(); ++I)
+ if ((*I)->State == StateErrorDiff)
+ return;
+
+ // first failure means we should fallback
+ State = StateErrorDiff;
+ std::clog << "Falling back to normal index file aquire" << std::endl;
+ new pkgAcqIndex(Owner, RealURI, Description,Desc.ShortDesc,
+ ExpectedHash);
+}
+ /*}}}*/
+void pkgAcqIndexMergeDiffs::Done(string Message,unsigned long long Size,string Md5Hash, /*{{{*/
+ pkgAcquire::MethodConfig *Cnf)
+{
+ if(Debug)
+ std::clog << "pkgAcqIndexMergeDiffs::Done(): " << Desc.URI << std::endl;
+
+ Item::Done(Message,Size,Md5Hash,Cnf);
+
+ string const FinalFile = _config->FindDir("Dir::State::lists") + URItoFileName(RealURI);
+
+ if (State == StateFetchDiff)
+ {
+ // rred expects the patch as $FinalFile.ed.$patchname.gz
+ Rename(DestFile, FinalFile + ".ed." + patch.file + ".gz");
+
+ // check if this is the last completed diff
+ State = StateDoneDiff;
+ for (std::vector<pkgAcqIndexMergeDiffs *>::const_iterator I = allPatches->begin();
+ I != allPatches->end(); ++I)
+ if ((*I)->State != StateDoneDiff)
+ {
+ if(Debug)
+ std::clog << "Not the last done diff in the batch: " << Desc.URI << std::endl;
+ return;
+ }
+
+ // this is the last completed diff, so we are ready to apply now
+ State = StateApplyDiff;
+
+ if(Debug)
+ std::clog << "Sending to rred method: " << FinalFile << std::endl;
+
+ Local = true;
+ Desc.URI = "rred:" + FinalFile;
+ QueueURI(Desc);
+ Mode = "rred";
+ return;
+ }
+ // success in download/apply all diffs, clean up
+ else if (State == StateApplyDiff)
+ {
+ // see if we really got the expected file
+ if(!ExpectedHash.empty() && !ExpectedHash.VerifyFile(DestFile))
+ {
+ RenameOnError(HashSumMismatch);
+ return;
+ }
+
+ // move the result into place
+ if(Debug)
+ std::clog << "Moving patched file in place: " << std::endl
+ << DestFile << " -> " << FinalFile << std::endl;
+ Rename(DestFile, FinalFile);
+ chmod(FinalFile.c_str(), 0644);
+
+ // otherwise lists cleanup will eat the file
+ DestFile = FinalFile;
+
+ // all set and done
+ Complete = true;
+ if(Debug)
+ std::clog << "allDone: " << DestFile << "\n" << std::endl;
+ }
+}
+ /*}}}*/
// AcqIndex::AcqIndex - Constructor /*{{{*/
// ---------------------------------------------------------------------
/* The package file is added to the queue and a second class is
projects / apt.git / blobdiff