libzypp  12.16.5
Helper.h
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1 /* -*- Mode: C++; tab-width: 8; indent-tabs-mode: t; c-basic-offset: 4 -*- */
2 /* Helper.h
3  *
4  * Static helpers
5  *
6  * Copyright (C) 2000-2002 Ximian, Inc.
7  * Copyright (C) 2005 SUSE Linux Products GmbH
8  *
9  * This program is free software; you can redistribute it and/or
10  * modify it under the terms of the GNU General Public License,
11  * version 2, as published by the Free Software Foundation.
12  *
13  * This program is distributed in the hope that it will be useful, but
14  * WITHOUT ANY WARRANTY; without even the implied warranty of
15  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
16  * General Public License for more details.
17  *
18  * You should have received a copy of the GNU General Public License
19  * along with this program; if not, write to the Free Software
20  * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
21  * 02111-1307, USA.
22  */
23 
24 #ifndef ZYPP_SOLVER_DETAIL_HELPER_H
25 #define ZYPP_SOLVER_DETAIL_HELPER_H
26 
27 #include <iosfwd>
28 
29 #include "zypp/ResPool.h"
30 #include "zypp/PoolItem.h"
31 #include "zypp/Capabilities.h"
32 #include "zypp/base/String.h"
33 #include "zypp/solver/detail/Types.h"
34 
36 namespace zypp
37 {
38 
39  namespace solver
40  {
41 
42  namespace detail
43  {
44 
46 //
47 // CLASS NAME : Helper
48 
49 class Helper {
50  public:
51 
52  // for name, find installed item which has same name
53  // does *NOT* check edition
54  // FIXME: should probably take provides/obsoletes into account for
55  // renamed upgrades
56  static PoolItem findInstalledByNameAndKind (const ResPool & pool, const std::string & name, const Resolvable::Kind & kind);
57 
58  // for name, find uninstalled item which has same name
59  static PoolItem findUninstalledByNameAndKind (const ResPool & pool, const std::string & name, const Resolvable::Kind & kind);
60 
61  // for item, find installed item which has same name -> calls findInstalledByNameAndKind()
62  // does *NOT* check edition
63  // FIXME: should probably take provides/obsoletes into account for
64  // renamed upgrades
65  static PoolItem findInstalledItem (const ResPool & pool, PoolItem item);
67  static PoolItem findInstalledItem (const std::vector<PoolItem> & pool, PoolItem item);
68 
69  // for item, find uninstalled item which has same name and higher edition
70  static PoolItem findUninstalledItem (const ResPool & pool, PoolItem item);
71 
72  // for item, find uninstalled item which has same name and equal edition
73  static PoolItem findReinstallItem (const ResPool & pool, PoolItem item);
74 
75  static PoolItem findUpdateItem (const ResPool & pool, PoolItem item);
77  static PoolItem findUpdateItem (const std::vector<PoolItem> & pool, PoolItem item);
78 
79  // for item, check if this is the 'best' uninstalled (best arch, best version) item
80  static bool isBestUninstalledItem (const ResPool & pool, PoolItem item);
81 
82  // Human readable item
83  static std::string itemToString (PoolItem item, bool shortVersion=false);
84  static std::string capToString (const Capability & capability);
85 
86  friend std::ostream& operator<<(std::ostream&, const PoolItemList & itemlist);
87 
88 };
89 
91  };// namespace detail
94  };// namespace solver
97 };// namespace zypp
99 
100 #endif // ZYPP_SOLVER_DETAIL_HELPER_H