// -*- mode: cpp; mode: fold -*- // Description /*{{{*/ // $Id: copy.cc,v 1.7.2.1 2004/01/16 18:58:50 mdz Exp $ /* ###################################################################### Copy URI - This method takes a uri like a file: uri and copies it to the destination file. ##################################################################### */ /*}}}*/ // Include Files /*{{{*/ #include <config.h> #include <apt-pkg/fileutl.h> #include <apt-pkg/strutl.h> #include <apt-pkg/acquire-method.h> #include <apt-pkg/error.h> #include <apt-pkg/hashes.h> #include <apt-pkg/configuration.h> #include <string> #include <sys/stat.h> #include <sys/time.h> #include <apti18n.h> /*}}}*/ class CopyMethod : public pkgAcqMethod { virtual bool Fetch(FetchItem *Itm); void CalculateHashes(FetchResult &Res); public: CopyMethod() : pkgAcqMethod("1.0",SingleInstance | SendConfig) {}; }; void CopyMethod::CalculateHashes(FetchResult &Res) { // For gzip indexes we need to look inside the gzip for the hash // We can not use the extension here as its not used in partial // on a IMS hit FileFd::OpenMode OpenMode = FileFd::ReadOnly; if (_config->FindB("Acquire::GzipIndexes", false) == true) OpenMode = FileFd::ReadOnlyGzip; Hashes Hash; FileFd Fd(Res.Filename, OpenMode); Hash.AddFD(Fd); Res.TakeHashes(Hash); } // CopyMethod::Fetch - Fetch a file /*{{{*/ // --------------------------------------------------------------------- /* */ bool CopyMethod::Fetch(FetchItem *Itm) { // this ensures that relative paths work in copy std::string File = Itm->Uri.substr(Itm->Uri.find(':')+1); // Stat the file and send a start message struct stat Buf; if (stat(File.c_str(),&Buf) != 0) return _error->Errno("stat",_("Failed to stat")); // Forumulate a result and send a start message FetchResult Res; Res.Size = Buf.st_size; Res.Filename = Itm->DestFile; Res.LastModified = Buf.st_mtime; Res.IMSHit = false; URIStart(Res); // just calc the hashes if the source and destination are identical if (File == Itm->DestFile) { CalculateHashes(Res); URIDone(Res); return true; } // See if the file exists FileFd From(File,FileFd::ReadOnly); FileFd To(Itm->DestFile,FileFd::WriteAtomic); To.EraseOnFailure(); if (_error->PendingError() == true) { To.OpFail(); return false; } // Copy the file if (CopyFile(From,To) == false) { To.OpFail(); return false; } From.Close(); To.Close(); // Transfer the modification times struct timeval times[2]; times[0].tv_sec = Buf.st_atime; times[1].tv_sec = Buf.st_mtime; times[0].tv_usec = times[1].tv_usec = 0; if (utimes(Res.Filename.c_str(), times) != 0) return _error->Errno("utimes",_("Failed to set modification time")); CalculateHashes(Res); URIDone(Res); return true; } /*}}}*/ int main() { setlocale(LC_ALL, ""); CopyMethod Mth; return Mth.Run(); }