From c4997486bffc76e2581e9072bff05eba0feeb29c Mon Sep 17 00:00:00 2001 From: David Kalnischkies Date: Thu, 5 Apr 2012 20:51:36 +0200 Subject: - add libbz2-dev as new build-dependency - remove the libz-dev alternative from zlib1g-dev build-dependency - do the same for bz2 builtin if available * apt-pkg/contrib/fileutl.cc: - use libz2 library for (de)compression instead of the bzip2 binary as the first is a dependency of dpkg and the later just priority:optional so we gain 'easier' access to bz2-compressed Translation files this way --- apt-pkg/aptconfiguration.cc | 6 ++- apt-pkg/contrib/fileutl.cc | 107 ++++++++++++++++++++++++++++++++++++++++---- apt-pkg/makefile | 8 +++- 3 files changed, 110 insertions(+), 11 deletions(-) (limited to 'apt-pkg') diff --git a/apt-pkg/aptconfiguration.cc b/apt-pkg/aptconfiguration.cc index f00852775..d6691e392 100644 --- a/apt-pkg/aptconfiguration.cc +++ b/apt-pkg/aptconfiguration.cc @@ -479,10 +479,14 @@ const Configuration::getCompressors(bool const Cached) { compressors.push_back(Compressor("gzip",".gz","gzip","-9n","-d",2)); #ifdef HAVE_ZLIB else - compressors.push_back(Compressor("gzip",".gz","/bin/false", "", "", 2)); + compressors.push_back(Compressor("gzip",".gz","false", "", "", 2)); #endif if (_config->Exists("Dir::Bin::bzip2") == false || FileExists(_config->FindFile("Dir::Bin::bzip2")) == true) compressors.push_back(Compressor("bzip2",".bz2","bzip2","-9","-d",3)); +#ifdef HAVE_BZ2 + else + compressors.push_back(Compressor("bzip2",".bz2","false", "", "", 3)); +#endif if (_config->Exists("Dir::Bin::xz") == false || FileExists(_config->FindFile("Dir::Bin::xz")) == true) compressors.push_back(Compressor("xz",".xz","xz","-6","-d",4)); if (_config->Exists("Dir::Bin::lzma") == false || FileExists(_config->FindFile("Dir::Bin::lzma")) == true) diff --git a/apt-pkg/contrib/fileutl.cc b/apt-pkg/contrib/fileutl.cc index 30d0b6662..536571fee 100644 --- a/apt-pkg/contrib/fileutl.cc +++ b/apt-pkg/contrib/fileutl.cc @@ -47,6 +47,9 @@ #ifdef HAVE_ZLIB #include #endif +#ifdef HAVE_BZ2 + #include +#endif #ifdef WORDS_BIGENDIAN #include @@ -63,6 +66,11 @@ class FileFdPrivate { gzFile gz; #else void* gz; +#endif +#ifdef HAVE_BZ2 + BZFILE* bz2; +#else + void* bz2; #endif int compressed_fd; pid_t compressor_pid; @@ -70,7 +78,8 @@ class FileFdPrivate { APT::Configuration::Compressor compressor; unsigned int openmode; unsigned long long seekpos; - FileFdPrivate() : gz(NULL), compressed_fd(-1), compressor_pid(-1), pipe(false), + FileFdPrivate() : gz(NULL), bz2(NULL), + compressed_fd(-1), compressor_pid(-1), pipe(false), openmode(0), seekpos(0) {}; }; @@ -1017,13 +1026,29 @@ bool FileFd::OpenInternDescriptor(unsigned int const Mode, APT::Configuration::C else if ((Mode & WriteOnly) == WriteOnly) d->gz = gzdopen(iFd, "w"); else - d->gz = gzdopen (iFd, "r"); + d->gz = gzdopen(iFd, "r"); if (d->gz == NULL) return false; Flags |= Compressed; return true; } #endif +#ifdef HAVE_BZ2 + else if (compressor.Name == "bzip2") + { + if ((Mode & ReadWrite) == ReadWrite) + d->bz2 = BZ2_bzdopen(iFd, "r+"); + else if ((Mode & WriteOnly) == WriteOnly) + d->bz2 = BZ2_bzdopen(iFd, "w"); + else + d->bz2 = BZ2_bzdopen(iFd, "r"); + if (d->bz2 == NULL) + return false; + Flags |= Compressed; + return true; + } +#endif + if ((Mode & ReadWrite) == ReadWrite) return _error->Error("ReadWrite mode is not supported for file %s", FileName.c_str()); @@ -1132,7 +1157,12 @@ bool FileFd::Read(void *To,unsigned long long Size,unsigned long long *Actual) { #ifdef HAVE_ZLIB if (d->gz != NULL) - Res = gzread(d->gz,To,Size); + Res = gzread(d->gz,To,Size); + else +#endif +#ifdef HAVE_BZ2 + if (d->bz2 != NULL) + Res = BZ2_bzread(d->bz2,To,Size); else #endif Res = read(iFd,To,Size); @@ -1150,6 +1180,15 @@ bool FileFd::Read(void *To,unsigned long long Size,unsigned long long *Actual) if (err != Z_ERRNO) return _error->Error("gzread: %s (%d: %s)", _("Read error"), err, errmsg); } +#endif +#ifdef HAVE_BZ2 + if (d->bz2 != NULL) + { + int err; + char const * const errmsg = BZ2_bzerror(d->bz2, &err); + if (err != BZ_IO_ERROR) + return _error->Error("BZ2_bzread: %s (%d: %s)", _("Read error"), err, errmsg); + } #endif return _error->Errno("read",_("Read error")); } @@ -1218,6 +1257,11 @@ bool FileFd::Write(const void *From,unsigned long long Size) if (d->gz != NULL) Res = gzwrite(d->gz,From,Size); else +#endif +#ifdef HAVE_BZ2 + if (d->bz2 != NULL) + Res = BZ2_bzwrite(d->bz2,(void*)From,Size); + else #endif Res = write(iFd,From,Size); if (Res < 0 && errno == EINTR) @@ -1225,6 +1269,24 @@ bool FileFd::Write(const void *From,unsigned long long Size) if (Res < 0) { Flags |= Fail; +#ifdef HAVE_ZLIB + if (d->gz != NULL) + { + int err; + char const * const errmsg = gzerror(d->gz, &err); + if (err != Z_ERRNO) + return _error->Error("gzwrite: %s (%d: %s)", _("Write error"), err, errmsg); + } +#endif +#ifdef HAVE_BZ2 + if (d->bz2 != NULL) + { + int err; + char const * const errmsg = BZ2_bzerror(d->bz2, &err); + if (err != BZ_IO_ERROR) + return _error->Error("BZ2_bzwrite: %s (%d: %s)", _("Write error"), err, errmsg); + } +#endif return _error->Errno("write",_("Write error")); } @@ -1246,7 +1308,11 @@ bool FileFd::Write(const void *From,unsigned long long Size) /* */ bool FileFd::Seek(unsigned long long To) { - if (d->pipe == true) + if (d->pipe == true +#ifdef HAVE_BZ2 + || d->bz2 != NULL +#endif + ) { // Our poor man seeking in pipes is costly, so try to avoid it unsigned long long seekpos = Tell(); @@ -1257,6 +1323,10 @@ bool FileFd::Seek(unsigned long long To) if ((d->openmode & ReadOnly) != ReadOnly) return _error->Error("Reopen is only implemented for read-only files!"); +#ifdef HAVE_BZ2 + if (d->bz2 != NULL) + BZ2_bzclose(d->bz2); +#endif close(iFd); iFd = 0; if (TemporaryFileName.empty() == false) @@ -1303,7 +1373,11 @@ bool FileFd::Seek(unsigned long long To) /* */ bool FileFd::Skip(unsigned long long Over) { - if (d->pipe == true) + if (d->pipe == true +#ifdef HAVE_BZ2 + || d->bz2 != NULL +#endif + ) { d->seekpos += Over; char buffer[1024]; @@ -1339,11 +1413,13 @@ bool FileFd::Skip(unsigned long long Over) /* */ bool FileFd::Truncate(unsigned long long To) { - if (d->gz != NULL) +#if defined HAVE_ZLIB || defined HAVE_BZ2 + if (d->gz != NULL || d->bz2 != NULL) { Flags |= Fail; - return _error->Error("Truncating gzipped files is not implemented (%s)", FileName.c_str()); + return _error->Error("Truncating compressed files is not implemented (%s)", FileName.c_str()); } +#endif if (ftruncate(iFd,To) != 0) { Flags |= Fail; @@ -1362,7 +1438,11 @@ unsigned long long FileFd::Tell() // seeking around, but not all users of FileFd use always Seek() and co // so d->seekpos isn't always true and we can just use it as a hint if // we have nothing else, but not always as an authority… - if (d->pipe == true) + if (d->pipe == true +#ifdef HAVE_BZ2 + || d->bz2 != NULL +#endif + ) return d->seekpos; off_t Res; @@ -1409,7 +1489,11 @@ unsigned long long FileFd::Size() // for compressor pipes st_size is undefined and at 'best' zero, // so we 'read' the content and 'seek' back - see there - if (d->pipe == true) + if (d->pipe == true +#ifdef HAVE_BZ2 + || (d->bz2 && size > 0) +#endif + ) { unsigned long long const oldSeek = Tell(); char ignore[1000]; @@ -1500,6 +1584,11 @@ bool FileFd::Close() if (e != 0 && e != Z_BUF_ERROR) Res &= _error->Errno("close",_("Problem closing the gzip file %s"), FileName.c_str()); } else +#endif +#ifdef HAVE_BZ2 + if (d != NULL && d->bz2 != NULL) + BZ2_bzclose(d->bz2); + else #endif if (iFd > 0 && close(iFd) != 0) Res &= _error->Errno("close",_("Problem closing the file %s"), FileName.c_str()); diff --git a/apt-pkg/makefile b/apt-pkg/makefile index e1f69dd65..27d7ead24 100644 --- a/apt-pkg/makefile +++ b/apt-pkg/makefile @@ -14,7 +14,13 @@ include ../buildlib/libversion.mak LIBRARY=apt-pkg MAJOR=$(LIBAPTPKG_MAJOR) MINOR=$(LIBAPTPKG_RELEASE) -SLIBS=$(PTHREADLIB) $(INTLLIBS) -lutil -ldl -lz +SLIBS=$(PTHREADLIB) $(INTLLIBS) -lutil -ldl +ifeq ($(HAVE_ZLIB),yes) +SLIBS+= -lz +endif +ifeq ($(HAVE_BZ2),yes) +SLIBS+= -lbz2 +endif APT_DOMAIN:=libapt-pkg$(LIBAPTPKG_MAJOR) # Source code for the contributed non-core things -- cgit v1.2.3