apt-pkg/packagemanager.h

   1 // -*- mode: cpp; mode: fold -*-
   2 // Description                                                          /*{{{*/
   3 // $Id: packagemanager.h,v 1.6 1998/11/22 03:20:34 jgg Exp $
   4 /* ######################################################################
   5
   6    Package Manager - Abstacts the package manager
   7
   8    Three steps are
   9      - Aquiration of archives (stores the list of final file names)
  10      - Sorting of operations
  11      - Invokation of package manager
  12
  13    This is the final stage when the package cache entities get converted
  14    into file names and the state stored in a DepCache is transformed
  15    into a series of operations.
  16
  17    In the final scheme of things this may serve as a director class to
  18    access the actual install methods based on the file type being
  19    installed.
  20
  21    ##################################################################### */
  22                                                                         /*}}}*/
  23 // Header section: pkglib
  24 #ifndef PKGLIB_PACKAGEMANAGER_H
  25 #define PKGLIB_PACKAGEMANAGER_H
  26
  27 #ifdef __GNUG__
  28 #pragma interface "apt-pkg/packagemanager.h"
  29 #endif
  30
  31 #include <string>
  32 #include <apt-pkg/pkgcache.h>
  33
  34 class pkgAcquire;
  35 class pkgDepCache;
  36 class pkgSourceList;
  37 class pkgOrderList;
  38 class pkgRecords;
  39 class pkgPackageManager
  40 {
  41    protected:
  42    string *FileNames;
  43    pkgDepCache &Cache;
  44    pkgOrderList *List;
  45    bool Debug;
  46
  47    // Bring some usefull types into the local scope
  48    typedef pkgCache::PkgIterator PkgIterator;
  49    typedef pkgCache::VerIterator VerIterator;
  50    typedef pkgCache::DepIterator DepIterator;
  51    typedef pkgCache::PrvIterator PrvIterator;
  52    typedef pkgCache::Version Version;
  53    typedef pkgCache::Package Package;
  54
  55    bool DepAdd(pkgOrderList &Order,PkgIterator P,int Depth = 0);
  56    bool OrderInstall();
  57    bool CheckRConflicts(PkgIterator Pkg,DepIterator Dep,const char *Ver);
  58
  59    // Analysis helpers
  60    bool DepAlwaysTrue(DepIterator D);
  61
  62    // Install helpers
  63    bool ConfigureAll();
  64    bool SmartConfigure(PkgIterator Pkg);
  65    bool SmartUnPack(PkgIterator Pkg);
  66    bool SmartRemove(PkgIterator Pkg);
  67    bool EarlyRemove(PkgIterator Pkg);
  68
  69    // The Actuall installation implementation
  70    virtual bool Install(PkgIterator /*Pkg*/,string /*File*/) {return false;};
  71    virtual bool Configure(PkgIterator /*Pkg*/) {return false;};
  72    virtual bool Remove(PkgIterator /*Pkg*/) {return false;};
  73    virtual bool Go() {return true;};
  74
  75    public:
  76
  77    // Main action members
  78    bool GetArchives(pkgAcquire *Owner,pkgSourceList *Sources,
  79                     pkgRecords *Recs);
  80    bool DoInstall();
  81    bool FixMissing();
  82
  83    pkgPackageManager(pkgDepCache &Cache);
  84    virtual ~pkgPackageManager();
  85 };
  86
  87 #endif