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Diffstat (limited to 'methods/copy.cc')
-rw-r--r-- | methods/copy.cc | 93 |
1 files changed, 93 insertions, 0 deletions
diff --git a/methods/copy.cc b/methods/copy.cc new file mode 100644 index 000000000..810fc2f38 --- /dev/null +++ b/methods/copy.cc @@ -0,0 +1,93 @@ +// -*- 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/error.h> +#include <apt-pkg/hashes.h> +#include <apt-pkg/configuration.h> +#include "aptmethod.h" + +#include <string> +#include <sys/stat.h> +#include <sys/time.h> + +#include <apti18n.h> + /*}}}*/ + +class CopyMethod : public aptMethod +{ + virtual bool Fetch(FetchItem *Itm) APT_OVERRIDE; + + public: + + CopyMethod() : aptMethod("copy", "1.0",SingleInstance | SendConfig) {}; +}; + +// CopyMethod::Fetch - Fetch a file /*{{{*/ +// --------------------------------------------------------------------- +/* */ +bool CopyMethod::Fetch(FetchItem *Itm) +{ + // this ensures that relative paths work in copy + std::string const 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 || Itm->DestFile == "/dev/null") + { + CalculateHashes(Itm, Res); + URIDone(Res); + return true; + } + + // See if the file exists + FileFd From(File,FileFd::ReadOnly); + FileFd To(Itm->DestFile,FileFd::WriteAtomic); + To.EraseOnFailure(); + + // Copy the file + if (CopyFile(From,To) == false) + { + To.OpFail(); + return false; + } + + From.Close(); + To.Close(); + + if (TransferModificationTimes(File.c_str(), Res.Filename.c_str(), Res.LastModified) == false) + return false; + + CalculateHashes(Itm, Res); + URIDone(Res); + return true; +} + /*}}}*/ + +int main() +{ + return CopyMethod().Run(); +} |