debrecords.h

// -*- mode: cpp; mode: fold -*-
// Description                                                          /*{{{*/
/* ######################################################################
   
   Debian Package Records - Parser for debian package records
   
   This provides display-type parsing for the Packages file. This is
   different than the list parser which provides cache generation
   services. There should be no overlap between these two.
   
   ##################################################################### */
                                                                        /*}}}*/
#ifndef PKGLIB_DEBRECORDS_H
#define PKGLIB_DEBRECORDS_H
 
#include <apt-pkg/fileutl.h>
#include <apt-pkg/pkgcache.h>
#include <apt-pkg/pkgrecords.h>
#include <apt-pkg/tagfile.h>
 
#include <string>
 
 
class APT_HIDDEN debRecordParserBase : public pkgRecords::Parser
{
   void * const d;
 protected:
   pkgTagSection Section;
 
 public:
   // These refer to the archive file for the Version
   std::string FileName() override;
   std::string SourcePkg() override;
   std::string SourceVer() override;
 
   [[nodiscard]] HashStringList Hashes() const override;
 
   // These are some general stats about the package
   std::string Maintainer() override;
   std::string ShortDesc(std::string const &lang) override;
   std::string LongDesc(std::string const &lang) override;
   std::string Name() override;
   std::string Homepage() override;
 
   // An arbitrary custom field
   std::string RecordField(const char *fieldName) override;
 
   void GetRec(const char *&Start, const char *&Stop) override;
 
   debRecordParserBase();
   ~debRecordParserBase() override;
};
 
class APT_HIDDEN debRecordParser : public debRecordParserBase
{
   void * const d;
 protected:
   FileFd File;
   pkgTagFile Tags;
 
   bool Jump(pkgCache::VerFileIterator const &Ver) override;
   bool Jump(pkgCache::DescFileIterator const &Desc) override;
 
 public:
   debRecordParser(std::string FileName,pkgCache &Cache);
   ~debRecordParser() override;
};
 
// custom record parser that reads deb files directly
class APT_HIDDEN debDebFileRecordParser : public debRecordParserBase
{
   void * const d;
   std::string debFileName;
   std::string controlContent;
 
   APT_HIDDEN bool LoadContent();
 protected:
   // single file files, so no jumping whatsoever
 bool Jump(pkgCache::VerFileIterator const &/*Ver*/) override;
 bool Jump(pkgCache::DescFileIterator const & /*Desc*/) override;
 
 public:
 std::string FileName() override;
 
 explicit debDebFileRecordParser(std::string FileName);
 ~debDebFileRecordParser() override;
};
 
#endif