summaryrefslogtreecommitdiff
path: root/Source/cmCacheManager.h
blob: 9c94d214c5fac7e6f474ce6d932fd110ba00527a (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
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
/*============================================================================
  CMake - Cross Platform Makefile Generator
  Copyright 2000-2009 Kitware, Inc., Insight Software Consortium

  Distributed under the OSI-approved BSD License (the "License");
  see accompanying file Copyright.txt for details.

  This software is distributed WITHOUT ANY WARRANTY; without even the
  implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
  See the License for more information.
============================================================================*/
#ifndef cmCacheManager_h
#define cmCacheManager_h

#include "cmStandardIncludes.h"
#include "cmPropertyMap.h"
class cmMakefile;
class cmMarkAsAdvancedCommand;
class cmake;

/** \class cmCacheManager
 * \brief Control class for cmake's cache
 *
 * Load and Save CMake cache files.
 * 
 */
class cmCacheManager
{
public:
  cmCacheManager(cmake* cm);
  class CacheIterator;
  friend class cmCacheManager::CacheIterator;
  enum CacheEntryType{ BOOL=0, PATH, FILEPATH, STRING, INTERNAL,STATIC, 
                       UNINITIALIZED };

private:
  struct CacheEntry
  {
    std::string Value;
    CacheEntryType Type;
    cmPropertyMap Properties;
    const char* GetProperty(const char*) const;
    void SetProperty(const char* property, const char* value);
    void AppendProperty(const char* property, const char* value,
                        bool asString=false);
    bool Initialized;
    CacheEntry() : Value(""), Type(UNINITIALIZED), Initialized(false)
      {}
  };

public:
  class CacheIterator
  {
  public:
    void Begin();
    bool Find(const char*);
    bool IsAtEnd() const;
    void Next();
    const char *GetName() const {
      return this->Position->first.c_str(); } 
    const char* GetProperty(const char*) const ;
    bool GetPropertyAsBool(const char*) const ;
    bool PropertyExists(const char*) const;
    void SetProperty(const char* property, const char* value);
    void AppendProperty(const char* property, const char* value,
                        bool asString=false);
    void SetProperty(const char* property, bool value);
    const char* GetValue() const { return this->GetEntry().Value.c_str(); }
    bool GetValueAsBool() const;
    void SetValue(const char*);
    CacheEntryType GetType() const { return this->GetEntry().Type; }
    void SetType(CacheEntryType ty) { this->GetEntry().Type = ty; }
    bool Initialized() { return this->GetEntry().Initialized; }
    cmCacheManager &Container;
    std::map<cmStdString, CacheEntry>::iterator Position;
    CacheIterator(cmCacheManager &cm) : Container(cm) {
      this->Begin();
    }
    CacheIterator(cmCacheManager &cm, const char* key) : Container(cm) 
      {
      if ( key )
        {
        this->Find(key);
        }
    }
  private:
    CacheEntry const& GetEntry() const { return this->Position->second; }
    CacheEntry& GetEntry() { return this->Position->second; }
  };
  
  ///! return an iterator to iterate through the cache map
  cmCacheManager::CacheIterator NewIterator() 
    {
      return CacheIterator(*this);
    } 
  
  /**
   * Types for the cache entries.  These are useful as
   * hints for a cache editor program.  Path should bring
   * up a file chooser, BOOL a check box, and STRING a 
   * text entry box, FILEPATH is a full path to a file which
   * can be different than just a path input
   */
  static CacheEntryType StringToType(const char*);
  static const char* TypeToString(CacheEntryType);
  static bool IsType(const char*);
  
  ///! Load a cache for given makefile.  Loads from ouput home.
  bool LoadCache(cmMakefile*); 
  ///! Load a cache for given makefile.  Loads from path/CMakeCache.txt.
  bool LoadCache(const char* path);
  bool LoadCache(const char* path, bool internal);
  bool LoadCache(const char* path, bool internal, 
                 std::set<cmStdString>& excludes,
                 std::set<cmStdString>& includes);

  ///! Save cache for given makefile.  Saves to ouput home CMakeCache.txt.
  bool SaveCache(cmMakefile*) ;
  ///! Save cache for given makefile.  Saves to ouput path/CMakeCache.txt
  bool SaveCache(const char* path) ;

  ///! Delete the cache given
  bool DeleteCache(const char* path);

  ///! Print the cache to a stream
  void PrintCache(std::ostream&) const;
  
  ///! Get the iterator for an entry with a given key.
  cmCacheManager::CacheIterator GetCacheIterator(const char *key=0);
  
  ///! Remove an entry from the cache
  void RemoveCacheEntry(const char* key);
  
  ///! Get the number of entries in the cache
  int GetSize() {
    return static_cast<int>(this->Cache.size()); }
  
  ///! Break up a line like VAR:type="value" into var, type and value
  static bool ParseEntry(const char* entry, 
                         std::string& var,
                         std::string& value,
                         CacheEntryType& type);

  ///! Get a value from the cache given a key
  const char* GetCacheValue(const char* key) const;

  /** Get the version of CMake that wrote the cache.  */
  unsigned int GetCacheMajorVersion() { return this->CacheMajorVersion; }
  unsigned int GetCacheMinorVersion() { return this->CacheMinorVersion; }
  bool NeedCacheCompatibility(int major, int minor);

  /** Define and document CACHE entry properties.  */
  static void DefineProperties(cmake *cm);

protected:
  ///! Add an entry into the cache
  void AddCacheEntry(const char* key, const char* value, 
                     const char* helpString, CacheEntryType type);

  ///! Get a cache entry object for a key
  CacheEntry *GetCacheEntry(const char *key);
  ///! Clean out the CMakeFiles directory if no CMakeCache.txt
  void CleanCMakeFiles(const char* path);

  // Cache version info
  unsigned int CacheMajorVersion;
  unsigned int CacheMinorVersion;
private:
  cmake* CMakeInstance;
  typedef  std::map<cmStdString, CacheEntry> CacheEntryMap;
  static void OutputHelpString(std::ostream& fout,
                               const std::string& helpString);
  static void OutputKey(std::ostream& fout, std::string const& key);
  static void OutputValue(std::ostream& fout, std::string const& value);

  static const char* PersistentProperties[];
  bool ReadPropertyEntry(std::string const& key, CacheEntry& e);
  void WritePropertyEntries(std::ostream& os, CacheIterator const& i);

  CacheEntryMap Cache;
  // Only cmake and cmMakefile should be able to add cache values
  // the commands should never use the cmCacheManager directly
  friend class cmMakefile; // allow access to add cache values
  friend class cmake; // allow access to add cache values
  friend class cmakewizard; // allow access to add cache values
  friend class cmMarkAsAdvancedCommand; // allow access to add cache values
};

#endif