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// -*- mode: cpp; mode: fold -*-
// Description /*{{{*/
// $Id: file.cc,v 1.8 2000/01/27 04:15:10 jgg Exp $
/* ######################################################################
File URI method for APT
This simply checks that the file specified exists, if so the relevent
information is returned. If a .gz filename is specified then the file
name with .gz removed will also be checked and information about it
will be returned in Alt-*
##################################################################### */
/*}}}*/
// Include Files /*{{{*/
#include <apt-pkg/acquire-method.h>
#include <apt-pkg/error.h>
#include <sys/stat.h>
#include <unistd.h>
/*}}}*/
class FileMethod : public pkgAcqMethod
{
virtual bool Fetch(FetchItem *Itm);
public:
FileMethod() : pkgAcqMethod("1.0",SingleInstance | LocalOnly) {};
};
// FileMethod::Fetch - Fetch a file /*{{{*/
// ---------------------------------------------------------------------
/* */
bool FileMethod::Fetch(FetchItem *Itm)
{
URI Get = Itm->Uri;
string File = Get.Path;
FetchResult Res;
if (Get.Host.empty() == false)
return _error->Error("Invalid URI, local URIS must not start with //");
// See if the file exists
struct stat Buf;
if (stat(File.c_str(),&Buf) == 0)
{
Res.Size = Buf.st_size;
Res.Filename = File;
Res.LastModified = Buf.st_mtime;
Res.IMSHit = false;
if (Itm->LastModified == Buf.st_mtime && Itm->LastModified != 0)
Res.IMSHit = true;
}
// See if we can compute a file without a .gz exentsion
string::size_type Pos = File.rfind(".gz");
if (Pos + 3 == File.length())
{
File = string(File,0,Pos);
if (stat(File.c_str(),&Buf) == 0)
{
FetchResult AltRes;
AltRes.Size = Buf.st_size;
AltRes.Filename = File;
AltRes.LastModified = Buf.st_mtime;
AltRes.IMSHit = false;
if (Itm->LastModified == Buf.st_mtime && Itm->LastModified != 0)
AltRes.IMSHit = true;
URIDone(Res,&AltRes);
return true;
}
}
if (Res.Filename.empty() == true)
return _error->Error("File not found");
URIDone(Res);
return true;
}
/*}}}*/
int main()
{
FileMethod Mth;
return Mth.Run();
}
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