From caffd4807f612e931ecca8f7d9b0c0c10de27ce6 Mon Sep 17 00:00:00 2001 From: David Kalnischkies Date: Sat, 15 Jan 2011 20:28:03 +0100 Subject: [PATCH] * methods/rred.cc: - operate optional on gzip compressed pdiffs * apt-pkg/acquire-item.cc: - don't uncompress downloaded pdiff files before feeding it to rred --- apt-pkg/acquire-item.cc | 19 +----------- apt-pkg/acquire-item.h | 2 +- apt-pkg/contrib/fileutl.h | 1 + debian/changelog | 6 +++- methods/rred.cc | 49 +++++++++++++++++++++++++------ test/integration/test-pdiff-usage | 1 + 6 files changed, 49 insertions(+), 29 deletions(-) diff --git a/apt-pkg/acquire-item.cc b/apt-pkg/acquire-item.cc index 2c4ce91a0..d4e90b552 100644 --- a/apt-pkg/acquire-item.cc +++ b/apt-pkg/acquire-item.cc @@ -570,24 +570,7 @@ void pkgAcqIndexDiffs::Done(string Message,unsigned long Size,string Md5Hash, /* FinalFile = _config->FindDir("Dir::State::lists")+URItoFileName(RealURI); // sucess in downloading a diff, enter ApplyDiff state - if(State == StateFetchDiff) - { - - if(Debug) - std::clog << "Sending to gzip method: " << FinalFile << std::endl; - - string FileName = LookupTag(Message,"Filename"); - State = StateUnzipDiff; - Local = true; - Desc.URI = "gzip:" + FileName; - DestFile += ".decomp"; - QueueURI(Desc); - Mode = "gzip"; - return; - } - - // sucess in downloading a diff, enter ApplyDiff state - if(State == StateUnzipDiff) + if(State == StateFetchDiff) { // rred excepts the patch as $FinalFile.ed diff --git a/apt-pkg/acquire-item.h b/apt-pkg/acquire-item.h index 943c61876..d97a96a0f 100644 --- a/apt-pkg/acquire-item.h +++ b/apt-pkg/acquire-item.h @@ -449,7 +449,7 @@ class pkgAcqIndexDiffs : public pkgAcquire::Item StateFetchDiff, /** \brief The diff is currently being uncompressed. */ - StateUnzipDiff, + StateUnzipDiff, // FIXME: No longer used /** \brief The diff is currently being applied. */ StateApplyDiff diff --git a/apt-pkg/contrib/fileutl.h b/apt-pkg/contrib/fileutl.h index 146d917d8..cde288ad2 100644 --- a/apt-pkg/contrib/fileutl.h +++ b/apt-pkg/contrib/fileutl.h @@ -72,6 +72,7 @@ class FileFd // Simple manipulators inline int Fd() {return iFd;}; inline void Fd(int fd) {iFd = fd;}; + inline gzFile gzFd() {return gz;}; inline bool IsOpen() {return iFd >= 0;}; inline bool Failed() {return (Flags & Fail) == Fail;}; inline void EraseOnFailure() {Flags |= DelOnFail;}; diff --git a/debian/changelog b/debian/changelog index 11768794d..5c8adb434 100644 --- a/debian/changelog +++ b/debian/changelog @@ -49,8 +49,12 @@ apt (0.8.11+wheezy) unstable; urgency=low - remove as it is not needed for a working 'bzr bd' * debian/{apt,apt-utils}.symbols: - ship experimental unmangled c++ symbol files + * methods/rred.cc: + - operate optional on gzip compressed pdiffs + * apt-pkg/acquire-item.cc: + - don't uncompress downloaded pdiff files before feeding it to rred - -- David Kalnischkies Sat, 15 Jan 2011 02:42:18 +0100 + -- David Kalnischkies Sat, 15 Jan 2011 20:24:03 +0100 apt (0.8.10) unstable; urgency=low diff --git a/methods/rred.cc b/methods/rred.cc index d51c45c85..1a18a381c 100644 --- a/methods/rred.cc +++ b/methods/rred.cc @@ -12,6 +12,7 @@ #include #include #include +#include #include /*}}}*/ /** \brief RredMethod - ed-style incremential patch method {{{ @@ -33,11 +34,14 @@ class RredMethod : public pkgAcqMethod { // return values enum State {ED_OK, ED_ORDERING, ED_PARSER, ED_FAILURE, MMAP_FAILED}; - State applyFile(FILE *ed_cmds, FILE *in_file, FILE *out_file, + State applyFile(gzFile &ed_cmds, FILE *in_file, FILE *out_file, unsigned long &line, char *buffer, Hashes *hash) const; void ignoreLineInFile(FILE *fin, char *buffer) const; + void ignoreLineInFile(gzFile &fin, char *buffer) const; void copyLinesFromFileToFile(FILE *fin, FILE *fout, unsigned int lines, Hashes *hash, char *buffer) const; + void copyLinesFromFileToFile(gzFile &fin, FILE *fout, unsigned int lines, + Hashes *hash, char *buffer) const; State patchFile(FileFd &Patch, FileFd &From, FileFd &out_file, Hashes *hash) const; State patchMMap(FileFd &Patch, FileFd &From, FileFd &out_file, Hashes *hash) const; @@ -65,10 +69,10 @@ public: * \param hash the created file for correctness * \return the success State of the ed command executor */ -RredMethod::State RredMethod::applyFile(FILE *ed_cmds, FILE *in_file, FILE *out_file, +RredMethod::State RredMethod::applyFile(gzFile &ed_cmds, FILE *in_file, FILE *out_file, unsigned long &line, char *buffer, Hashes *hash) const { // get the current command and parse it - if (fgets(buffer, BUF_SIZE, ed_cmds) == NULL) { + if (gzgets(ed_cmds, buffer, BUF_SIZE) == NULL) { if (Debug == true) std::clog << "rred: encounter end of file - we can start patching now." << std::endl; line = 0; @@ -123,7 +127,7 @@ RredMethod::State RredMethod::applyFile(FILE *ed_cmds, FILE *in_file, FILE *out_ unsigned char mode = *idx; // save the current position - unsigned const long pos = ftell(ed_cmds); + unsigned const long pos = gztell(ed_cmds); // if this is add or change then go to the next full stop unsigned int data_length = 0; @@ -157,7 +161,7 @@ RredMethod::State RredMethod::applyFile(FILE *ed_cmds, FILE *in_file, FILE *out_ // include data from ed script if (mode == MODE_CHANGED || mode == MODE_ADDED) { - fseek(ed_cmds, pos, SEEK_SET); + gzseek(ed_cmds, pos, SEEK_SET); copyLinesFromFileToFile(ed_cmds, out_file, data_length, hash, buffer); } @@ -183,6 +187,18 @@ void RredMethod::copyLinesFromFileToFile(FILE *fin, FILE *fout, unsigned int lin } } /*}}}*/ +void RredMethod::copyLinesFromFileToFile(gzFile &fin, FILE *fout, unsigned int lines,/*{{{*/ + Hashes *hash, char *buffer) const { + while (0 < lines--) { + do { + gzgets(fin, buffer, BUF_SIZE); + size_t const written = fwrite(buffer, 1, strlen(buffer), fout); + hash->Add((unsigned char*)buffer, written); + } while (strlen(buffer) == (BUF_SIZE - 1) && + buffer[BUF_SIZE - 2] != '\n'); + } +} + /*}}}*/ void RredMethod::ignoreLineInFile(FILE *fin, char *buffer) const { /*{{{*/ fgets(buffer, BUF_SIZE, fin); while (strlen(buffer) == (BUF_SIZE - 1) && @@ -192,11 +208,20 @@ void RredMethod::ignoreLineInFile(FILE *fin, char *buffer) const { /*{{{*/ } } /*}}}*/ +void RredMethod::ignoreLineInFile(gzFile &fin, char *buffer) const { /*{{{*/ + gzgets(fin, buffer, BUF_SIZE); + while (strlen(buffer) == (BUF_SIZE - 1) && + buffer[BUF_SIZE - 2] != '\n') { + gzgets(fin, buffer, BUF_SIZE); + buffer[0] = ' '; + } +} + /*}}}*/ RredMethod::State RredMethod::patchFile(FileFd &Patch, FileFd &From, /*{{{*/ FileFd &out_file, Hashes *hash) const { char buffer[BUF_SIZE]; FILE* fFrom = fdopen(From.Fd(), "r"); - FILE* fPatch = fdopen(Patch.Fd(), "r"); + gzFile fPatch = Patch.gzFd(); FILE* fTo = fdopen(out_file.Fd(), "w"); /* we do a tail recursion to read the commands in the right order */ @@ -228,6 +253,12 @@ RredMethod::State RredMethod::patchMMap(FileFd &Patch, FileFd &From, /*{{{*/ FileFd &out_file, Hashes *hash) const { #ifdef _POSIX_MAPPED_FILES MMap ed_cmds(Patch, MMap::ReadOnly); + if (Patch.gzFd() != NULL) { + unsigned long mapSize = Patch.Size(); + DynamicMMap dyn(0, mapSize, 0); + gzread(Patch.gzFd(), dyn.Data(), mapSize); + ed_cmds = dyn; + } MMap in_file(From, MMap::ReadOnly); if (ed_cmds.Size() == 0 || in_file.Size() == 0) @@ -445,7 +476,7 @@ bool RredMethod::Fetch(FetchItem *Itm) /*{{{*/ // Open the source and destination files (the d'tor of FileFd will do // the cleanup/closing of the fds) FileFd From(Path,FileFd::ReadOnly); - FileFd Patch(Path+".ed",FileFd::ReadOnly); + FileFd Patch(Path+".ed",FileFd::ReadOnlyGzip); FileFd To(Itm->DestFile,FileFd::WriteAtomic); To.EraseOnFailure(); if (_error->PendingError() == true) @@ -456,8 +487,8 @@ bool RredMethod::Fetch(FetchItem *Itm) /*{{{*/ State const result = patchMMap(Patch, From, To, &Hash); if (result == MMAP_FAILED) { // retry with patchFile - lseek(Patch.Fd(), 0, SEEK_SET); - lseek(From.Fd(), 0, SEEK_SET); + Patch.Seek(0); + From.Seek(0); To.Open(Itm->DestFile,FileFd::WriteAtomic); if (_error->PendingError() == true) return false; diff --git a/test/integration/test-pdiff-usage b/test/integration/test-pdiff-usage index a70b6122c..eb1818bcd 100755 --- a/test/integration/test-pdiff-usage +++ b/test/integration/test-pdiff-usage @@ -44,6 +44,7 @@ sed -i aptarchive/Release \ -e "/^SHA256:/ a\ \ $(sha256sum $PATCHINDEX | cut -d' ' -f 1) $(stat -c%s $PATCHINDEX) Packages.diff/Index" signreleasefiles +rm -f aptarchive/Packages aptarchive/Packages.gz aptarchive/Packages.bz2 aptarchive/Packages.lzma aptget update -qq testnopackage oldstuff -- 2.45.2