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// -*- mode: cpp; mode: fold -*-
// Description /*{{{*/
// $Id: srcrecords.cc,v 1.3 1999/10/18 04:15:24 jgg Exp $
/* ######################################################################
Source Package Records - Allows access to source package records
Parses and allows access to the list of source records and searching by
source name on that list.
##################################################################### */
/*}}}*/
// Include Files /*{{{*/
#ifdef __GNUG__
#pragma implementation "apt-pkg/srcrecords.h"
#endif
#include <apt-pkg/srcrecords.h>
#include <apt-pkg/error.h>
#include <apt-pkg/configuration.h>
#include <apt-pkg/strutl.h>
#include <apt-pkg/debsrcrecords.h>
/*}}}*/
// SrcRecords::pkgSrcRecords - Constructor /*{{{*/
// ---------------------------------------------------------------------
/* Open all the source index files */
pkgSrcRecords::pkgSrcRecords(pkgSourceList &List) : Files(0), Current(0)
{
pkgSourceList::const_iterator I = List.begin();
// Count how many items we will need
unsigned int Count = 0;
for (; I != List.end(); I++)
if (I->Type == pkgSourceList::Item::DebSrc)
Count++;
// Doesnt work without any source index files
if (Count == 0)
{
_error->Error("Sorry, you must put some 'source' uris"
" in your sources.list");
return;
}
Files = new Parser *[Count+1];
memset(Files,0,sizeof(*Files)*(Count+1));
// Create the parser objects
Count = 0;
string Dir = _config->FindDir("Dir::State::lists");
for (I = List.begin(); I != List.end(); I++)
{
if (I->Type != pkgSourceList::Item::DebSrc)
continue;
// Open the file
FileFd *FD = new FileFd(Dir + URItoFileName(I->PackagesURI()),
FileFd::ReadOnly);
if (_error->PendingError() == true)
{
delete FD;
return;
}
Files[Count] = new debSrcRecordParser(FD,I);
Count++;
}
Restart();
}
/*}}}*/
// SrcRecords::~pkgSrcRecords - Destructor /*{{{*/
// ---------------------------------------------------------------------
/* */
pkgSrcRecords::~pkgSrcRecords()
{
if (Files == 0)
return;
// Blow away all the parser objects
for (unsigned int Count = 0; Files[Count] != 0; Count++)
delete Files[Count];
}
/*}}}*/
// SrcRecords::Restart - Restart the search /*{{{*/
// ---------------------------------------------------------------------
/* Return all of the parsers to their starting position */
bool pkgSrcRecords::Restart()
{
Current = Files;
for (Parser **I = Files; *I != 0; I++)
(*I)->Restart();
return true;
}
/*}}}*/
// SrcRecords::Find - Find the first source package with the given name /*{{{*/
// ---------------------------------------------------------------------
/* This searches on both source package names and output binary names and
returns the first found. A 'cursor' like system is used to allow this
function to be called multiple times to get successive entries */
pkgSrcRecords::Parser *pkgSrcRecords::Find(const char *Package,bool SrcOnly)
{
if (*Current == 0)
return 0;
while (true)
{
// Step to the next record, possibly switching files
while ((*Current)->Step() == false)
{
if (_error->PendingError() == true)
return 0;
Current++;
if (*Current == 0)
return 0;
}
// IO error somehow
if (_error->PendingError() == true)
return 0;
// Source name hit
if ((*Current)->Package() == Package)
return *Current;
if (SrcOnly == true)
continue;
// Check for a binary hit
const char **I = (*Current)->Binaries();
for (; I != 0 && *I != 0; I++)
if (strcmp(Package,*I) == 0)
return *Current;
}
}
/*}}}*/
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