summaryrefslogtreecommitdiff
path: root/apt-pkg/packagemanager.h
blob: 4956e816f9f7141bcccfb46367a9de212ed47ee9 (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
// -*- mode: cpp; mode: fold -*-
// Description								/*{{{*/
// $Id: packagemanager.h,v 1.14 2001/05/07 04:24:08 jgg Exp $
/* ######################################################################

   Package Manager - Abstacts the package manager

   Three steps are 
     - Aquiration of archives (stores the list of final file names)
     - Sorting of operations
     - Invokation of package manager
   
   This is the final stage when the package cache entities get converted
   into file names and the state stored in a DepCache is transformed
   into a series of operations.

   In the final scheme of things this may serve as a director class to
   access the actual install methods based on the file type being
   installed.
   
   ##################################################################### */
									/*}}}*/
#ifndef PKGLIB_PACKAGEMANAGER_H
#define PKGLIB_PACKAGEMANAGER_H

#include <apt-pkg/pkgcache.h>

#include <string>
#include <iostream>
#include <set>

#ifndef APT_8_CLEANER_HEADERS
#include <apt-pkg/depcache.h>
using std::string;
#endif

class pkgAcquire;
class pkgDepCache;
class pkgSourceList;
class pkgOrderList;
class pkgRecords;

class pkgPackageManager : protected pkgCache::Namespace
{
   public:
   
   enum OrderResult {Completed,Failed,Incomplete};
   static bool SigINTStop;
   
   protected:
   std::string *FileNames;
   pkgDepCache &Cache;
   pkgOrderList *List;
   bool Debug;
   bool NoImmConfigure;
   bool ImmConfigureAll;

   /** \brief saves packages dpkg let disappear

       This way APT can retreat from trying to configure these
       packages later on and a frontend can choose to display a
       notice to inform the user about these disappears.
   */
   std::set<std::string> disappearedPkgs;

   void ImmediateAdd(PkgIterator P, bool UseInstallVer, unsigned const int &Depth = 0);
   virtual OrderResult OrderInstall();
   bool CheckRConflicts(PkgIterator Pkg,DepIterator Dep,const char *Ver);
   bool CreateOrderList();
   
   // Analysis helpers
   bool DepAlwaysTrue(DepIterator D);
   
   // Install helpers
   bool ConfigureAll();
   bool SmartConfigure(PkgIterator Pkg, int const Depth);
   //FIXME: merge on abi break
   bool SmartUnPack(PkgIterator Pkg);
   bool SmartUnPack(PkgIterator Pkg, bool const Immediate, int const Depth);
   bool SmartRemove(PkgIterator Pkg);
   bool EarlyRemove(PkgIterator Pkg);  
   
   // The Actual installation implementation
   virtual bool Install(PkgIterator /*Pkg*/,std::string /*File*/) {return false;};
   virtual bool Configure(PkgIterator /*Pkg*/) {return false;};
   virtual bool Remove(PkgIterator /*Pkg*/,bool /*Purge*/=false) {return false;};
   virtual bool Go(int statusFd=-1) {return true;};
   virtual void Reset() {};

   // the result of the operation
   OrderResult Res;

   public:
      
   // Main action members
   bool GetArchives(pkgAcquire *Owner,pkgSourceList *Sources,
		    pkgRecords *Recs);

   // Do the installation 
   OrderResult DoInstall(int statusFd=-1);

   // stuff that needs to be done before the fork() of a library that
   // uses apt
   OrderResult DoInstallPreFork() {
      Res = OrderInstall();
      return Res;
   };

   // stuff that needs to be done after the fork
   OrderResult DoInstallPostFork(int statusFd=-1);
   bool FixMissing();

   /** \brief returns all packages dpkg let disappear */
   inline std::set<std::string> GetDisappearedPackages() { return disappearedPkgs; };

   pkgPackageManager(pkgDepCache *Cache);
   virtual ~pkgPackageManager();
};

#endif