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1 // -*- mode: cpp; mode: fold -*-
2 // Description /*{{{*/
3 // $Id: packagemanager.h,v 1.14 2001/05/07 04:24:08 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 #ifndef PKGLIB_PACKAGEMANAGER_H
24 #define PKGLIB_PACKAGEMANAGER_H
25
26 #include <apt-pkg/pkgcache.h>
27
28 #include <string>
29 #include <iostream>
30 #include <set>
31
32 #ifndef APT_8_CLEANER_HEADERS
33 #include <apt-pkg/depcache.h>
34 using std::string;
35 #endif
36
37 class pkgAcquire;
38 class pkgDepCache;
39 class pkgSourceList;
40 class pkgOrderList;
41 class pkgRecords;
42 class pkgPackageManager : protected pkgCache::Namespace
43 {
44 public:
45
46 enum OrderResult {Completed,Failed,Incomplete};
47 static bool SigINTStop;
48
49 protected:
50 std::string *FileNames;
51 pkgDepCache &Cache;
52 pkgOrderList *List;
53 bool Debug;
54 bool NoImmConfigure;
55 bool ImmConfigureAll;
56
57 /** \brief saves packages dpkg let disappear
58
59 This way APT can retreat from trying to configure these
60 packages later on and a frontend can choose to display a
61 notice to inform the user about these disappears.
62 */
63 std::set<std::string> disappearedPkgs;
64
65 void ImmediateAdd(PkgIterator P, bool UseInstallVer, unsigned const int &Depth = 0);
66 virtual OrderResult OrderInstall();
67 bool CheckRConflicts(PkgIterator Pkg,DepIterator Dep,const char *Ver);
68 bool CreateOrderList();
69
70 // Analysis helpers
71 bool DepAlwaysTrue(DepIterator D);
72
73 // Install helpers
74 bool ConfigureAll();
75 bool SmartConfigure(PkgIterator Pkg, int const Depth);
76 //FIXME: merge on abi break
77 bool SmartUnPack(PkgIterator Pkg);
78 bool SmartUnPack(PkgIterator Pkg, bool const Immediate, int const Depth);
79 bool SmartRemove(PkgIterator Pkg);
80 bool EarlyRemove(PkgIterator Pkg);
81
82 // The Actual installation implementation
83 virtual bool Install(PkgIterator /*Pkg*/,std::string /*File*/) {return false;};
84 virtual bool Configure(PkgIterator /*Pkg*/) {return false;};
85 virtual bool Remove(PkgIterator /*Pkg*/,bool /*Purge*/=false) {return false;};
86 virtual bool Go(int statusFd=-1) {return true;};
87 virtual void Reset() {};
88
89 // the result of the operation
90 OrderResult Res;
91
92 public:
93
94 // Main action members
95 bool GetArchives(pkgAcquire *Owner,pkgSourceList *Sources,
96 pkgRecords *Recs);
97
98 // Do the installation
99 OrderResult DoInstall(int statusFd=-1);
100
101 // stuff that needs to be done before the fork() of a library that
102 // uses apt
103 OrderResult DoInstallPreFork() {
104 Res = OrderInstall();
105 return Res;
106 };
107
108 // stuff that needs to be done after the fork
109 OrderResult DoInstallPostFork(int statusFd=-1);
110 bool FixMissing();
111
112 /** \brief returns all packages dpkg let disappear */
113 inline std::set<std::string> GetDisappearedPackages() { return disappearedPkgs; };
114
115 pkgPackageManager(pkgDepCache *Cache);
116 virtual ~pkgPackageManager();
117 };
118
119 #endif