CMake/Source/cmCacheManager.cxx

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/*============================================================================
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.
============================================================================*/
#include "cmCacheManager.h"
#include "cmSystemTools.h"
#include "cmCacheManager.h"
#include "cmMakefile.h"
#include "cmake.h"
#include "cmVersion.h"
#include <cmsys/Directory.hxx>
#include <cmsys/Glob.hxx>
#include <cmsys/RegularExpression.hxx>
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const char* cmCacheManagerTypes[] =
{ "BOOL",
"PATH",
"FILEPATH",
"STRING",
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"INTERNAL",
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"STATIC",
"UNINITIALIZED",
0
};
cmCacheManager::cmCacheManager(cmake* cm)
{
this->CacheMajorVersion = 0;
this->CacheMinorVersion = 0;
this->CMakeInstance = cm;
}
const char* cmCacheManager::TypeToString(cmCacheManager::CacheEntryType type)
{
if ( type > 6 )
{
return cmCacheManagerTypes[6];
}
return cmCacheManagerTypes[type];
}
cmCacheManager::CacheEntryType cmCacheManager::StringToType(const char* s)
{
int i = 0;
while(cmCacheManagerTypes[i])
{
if(strcmp(s, cmCacheManagerTypes[i]) == 0)
{
return static_cast<CacheEntryType>(i);
}
++i;
}
return STRING;
}
bool cmCacheManager::IsType(const char* s)
{
for(int i=0; cmCacheManagerTypes[i]; ++i)
{
if(strcmp(s, cmCacheManagerTypes[i]) == 0)
{
return true;
}
}
return false;
}
bool cmCacheManager::LoadCache(cmMakefile* mf)
{
return this->LoadCache(mf->GetHomeOutputDirectory());
}
bool cmCacheManager::LoadCache(const char* path)
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{
return this->LoadCache(path,true);
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}
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bool cmCacheManager::LoadCache(const char* path,
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bool internal)
{
std::set<cmStdString> emptySet;
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return this->LoadCache(path, internal, emptySet, emptySet);
}
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bool cmCacheManager::ParseEntry(const char* entry,
std::string& var,
std::string& value)
{
// input line is: key:type=value
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static cmsys::RegularExpression reg(
"^([^:]*)=(.*[^\r\t ]|[\r\t ]*)[\r\t ]*$");
// input line is: "key":type=value
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static cmsys::RegularExpression regQuoted(
"^\"([^\"]*)\"=(.*[^\r\t ]|[\r\t ]*)[\r\t ]*$");
bool flag = false;
if(regQuoted.find(entry))
{
var = regQuoted.match(1);
value = regQuoted.match(2);
flag = true;
}
else if (reg.find(entry))
{
var = reg.match(1);
value = reg.match(2);
flag = true;
}
// if value is enclosed in single quotes ('foo') then remove them
// it is used to enclose trailing space or tab
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if (flag &&
value.size() >= 2 &&
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value[0] == '\'' &&
value[value.size() - 1] == '\'')
{
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value = value.substr(1,
value.size() - 2);
}
return flag;
}
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bool cmCacheManager::ParseEntry(const char* entry,
std::string& var,
std::string& value,
CacheEntryType& type)
{
// input line is: key:type=value
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static cmsys::RegularExpression reg(
"^([^:]*):([^=]*)=(.*[^\r\t ]|[\r\t ]*)[\r\t ]*$");
// input line is: "key":type=value
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static cmsys::RegularExpression regQuoted(
"^\"([^\"]*)\":([^=]*)=(.*[^\r\t ]|[\r\t ]*)[\r\t ]*$");
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bool flag = false;
if(regQuoted.find(entry))
{
var = regQuoted.match(1);
type = cmCacheManager::StringToType(regQuoted.match(2).c_str());
value = regQuoted.match(3);
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flag = true;
}
else if (reg.find(entry))
{
var = reg.match(1);
type = cmCacheManager::StringToType(reg.match(2).c_str());
value = reg.match(3);
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flag = true;
}
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// if value is enclosed in single quotes ('foo') then remove them
// it is used to enclose trailing space or tab
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if (flag &&
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value.size() >= 2 &&
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value[0] == '\'' &&
value[value.size() - 1] == '\'')
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{
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value = value.substr(1,
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value.size() - 2);
}
return flag;
}
void cmCacheManager::CleanCMakeFiles(const char* path)
{
std::string glob = path;
glob += cmake::GetCMakeFilesDirectory();
glob += "/*.cmake";
cmsys::Glob globIt;
globIt.FindFiles(glob);
std::vector<std::string> files = globIt.GetFiles();
for(std::vector<std::string>::iterator i = files.begin();
i != files.end(); ++i)
{
cmSystemTools::RemoveFile(i->c_str());
}
}
bool cmCacheManager::LoadCache(const char* path,
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bool internal,
std::set<cmStdString>& excludes,
std::set<cmStdString>& includes)
{
std::string cacheFile = path;
cacheFile += "/CMakeCache.txt";
// clear the old cache, if we are reading in internal values
if ( internal )
{
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this->Cache.clear();
}
if(!cmSystemTools::FileExists(cacheFile.c_str()))
{
this->CleanCMakeFiles(path);
return false;
}
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std::ifstream fin(cacheFile.c_str());
if(!fin)
{
return false;
}
const char *realbuffer;
std::string buffer;
std::string entryKey;
while(fin)
{
// Format is key:type=value
std::string helpString;
CacheEntry e;
e.Properties.SetCMakeInstance(this->CMakeInstance);
cmSystemTools::GetLineFromStream(fin, buffer);
realbuffer = buffer.c_str();
while(*realbuffer != '0' &&
(*realbuffer == ' ' ||
*realbuffer == '\t' ||
*realbuffer == '\r' ||
*realbuffer == '\n'))
{
realbuffer++;
}
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// skip blank lines and comment lines
if(realbuffer[0] == '#' || realbuffer[0] == 0)
{
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continue;
}
while(realbuffer[0] == '/' && realbuffer[1] == '/')
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{
if ((realbuffer[2] == '\\') && (realbuffer[3]=='n'))
{
helpString += "\n";
helpString += &realbuffer[4];
}
else
{
helpString += &realbuffer[2];
}
cmSystemTools::GetLineFromStream(fin, buffer);
realbuffer = buffer.c_str();
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if(!fin)
{
continue;
}
}
e.SetProperty("HELPSTRING", helpString.c_str());
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if(cmCacheManager::ParseEntry(realbuffer, entryKey, e.Value, e.Type))
{
if ( excludes.find(entryKey) == excludes.end() )
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{
// Load internal values if internal is set.
// If the entry is not internal to the cache being loaded
// or if it is in the list of internal entries to be
// imported, load it.
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if ( internal || (e.Type != INTERNAL) ||
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(includes.find(entryKey) != includes.end()) )
{
// If we are loading the cache from another project,
// make all loaded entries internal so that it is
// not visible in the gui
if (!internal)
{
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e.Type = INTERNAL;
helpString = "DO NOT EDIT, ";
helpString += entryKey;
helpString += " loaded from external file. "
"To change this value edit this file: ";
helpString += path;
helpString += "/CMakeCache.txt" ;
e.SetProperty("HELPSTRING", helpString.c_str());
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}
if(!this->ReadPropertyEntry(entryKey, e))
{
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e.Initialized = true;
this->Cache[entryKey] = e;
}
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}
}
}
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else
{
cmSystemTools::Error("Parse error in cache file ", cacheFile.c_str(),
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". Offending entry: ", realbuffer);
}
}
this->CacheMajorVersion = 0;
this->CacheMinorVersion = 0;
if(const char* cmajor = this->GetCacheValue("CMAKE_CACHE_MAJOR_VERSION"))
{
unsigned int v=0;
if(sscanf(cmajor, "%u", &v) == 1)
{
this->CacheMajorVersion = v;
}
if(const char* cminor = this->GetCacheValue("CMAKE_CACHE_MINOR_VERSION"))
{
if(sscanf(cminor, "%u", &v) == 1)
{
this->CacheMinorVersion = v;
}
}
}
else
{
// CMake version not found in the list file.
// Set as version 0.0
this->AddCacheEntry("CMAKE_CACHE_MINOR_VERSION", "0",
"Minor version of cmake used to create the "
"current loaded cache", cmCacheManager::INTERNAL);
this->AddCacheEntry("CMAKE_CACHE_MAJOR_VERSION", "0",
"Major version of cmake used to create the "
"current loaded cache", cmCacheManager::INTERNAL);
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}
// check to make sure the cache directory has not
// been moved
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if ( internal && this->GetCacheValue("CMAKE_CACHEFILE_DIR") )
{
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std::string currentcwd = path;
std::string oldcwd = this->GetCacheValue("CMAKE_CACHEFILE_DIR");
cmSystemTools::ConvertToUnixSlashes(currentcwd);
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currentcwd += "/CMakeCache.txt";
oldcwd += "/CMakeCache.txt";
if(!cmSystemTools::SameFile(oldcwd.c_str(), currentcwd.c_str()))
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{
std::string message =
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std::string("The current CMakeCache.txt directory ") +
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currentcwd + std::string(" is different than the directory ") +
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std::string(this->GetCacheValue("CMAKE_CACHEFILE_DIR")) +
std::string(" where CMackeCache.txt was created. This may result "
"in binaries being created in the wrong place. If you "
"are not sure, reedit the CMakeCache.txt");
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cmSystemTools::Error(message.c_str());
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}
}
return true;
}
//----------------------------------------------------------------------------
const char* cmCacheManager::PersistentProperties[] =
{
"ADVANCED",
"MODIFIED",
"STRINGS",
0
};
//----------------------------------------------------------------------------
bool cmCacheManager::ReadPropertyEntry(std::string const& entryKey,
CacheEntry& e)
{
// All property entries are internal.
if(e.Type != cmCacheManager::INTERNAL)
{
return false;
}
const char* end = entryKey.c_str() + entryKey.size();
for(const char** p = this->PersistentProperties; *p; ++p)
{
std::string::size_type plen = strlen(*p) + 1;
if(entryKey.size() > plen && *(end-plen) == '-' &&
strcmp(end-plen+1, *p) == 0)
{
std::string key = entryKey.substr(0, entryKey.size() - plen);
cmCacheManager::CacheIterator it = this->GetCacheIterator(key.c_str());
if(it.IsAtEnd())
{
// Create an entry and store the property.
CacheEntry& ne = this->Cache[key];
ne.Properties.SetCMakeInstance(this->CMakeInstance);
ne.Type = cmCacheManager::UNINITIALIZED;
ne.SetProperty(*p, e.Value.c_str());
}
else
{
// Store this property on its entry.
it.SetProperty(*p, e.Value.c_str());
}
return true;
}
}
return false;
}
//----------------------------------------------------------------------------
void cmCacheManager::WritePropertyEntries(std::ostream& os,
CacheIterator const& i)
{
for(const char** p = this->PersistentProperties; *p; ++p)
{
if(const char* value = i.GetProperty(*p))
{
std::string helpstring = *p;
helpstring += " property for variable: ";
helpstring += i.GetName();
cmCacheManager::OutputHelpString(os, helpstring);
std::string key = i.GetName();
key += "-";
key += *p;
this->OutputKey(os, key);
os << ":INTERNAL=";
this->OutputValue(os, value);
os << "\n";
}
}
}
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bool cmCacheManager::SaveCache(cmMakefile* mf)
{
return this->SaveCache(mf->GetHomeOutputDirectory());
}
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bool cmCacheManager::SaveCache(const char* path)
{
std::string cacheFile = path;
cacheFile += "/CMakeCache.txt";
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std::string tempFile = cacheFile;
tempFile += ".tmp";
std::ofstream fout(tempFile.c_str());
if(!fout)
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{
cmSystemTools::Error("Unable to open cache file for save. ",
cacheFile.c_str());
cmSystemTools::ReportLastSystemError("");
return false;
}
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// before writing the cache, update the version numbers
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// to the
char temp[1024];
sprintf(temp, "%d", cmVersion::GetMinorVersion());
this->AddCacheEntry("CMAKE_CACHE_MINOR_VERSION", temp,
"Minor version of cmake used to create the "
"current loaded cache", cmCacheManager::INTERNAL);
sprintf(temp, "%d", cmVersion::GetMajorVersion());
this->AddCacheEntry("CMAKE_CACHE_MAJOR_VERSION", temp,
"Major version of cmake used to create the "
"current loaded cache", cmCacheManager::INTERNAL);
sprintf(temp, "%d", cmVersion::GetPatchVersion());
this->AddCacheEntry("CMAKE_CACHE_PATCH_VERSION", temp,
"Patch version of cmake used to create the "
"current loaded cache", cmCacheManager::INTERNAL);
// Let us store the current working directory so that if somebody
// Copies it, he will not be surprised
std::string currentcwd = path;
if ( currentcwd[0] >= 'A' && currentcwd[0] <= 'Z' &&
currentcwd[1] == ':' )
{
// Cast added to avoid compiler warning. Cast is ok because
// value is guaranteed to fit in char by the above if...
currentcwd[0] = static_cast<char>(currentcwd[0] - 'A' + 'a');
}
cmSystemTools::ConvertToUnixSlashes(currentcwd);
this->AddCacheEntry("CMAKE_CACHEFILE_DIR", currentcwd.c_str(),
"This is the directory where this CMakeCache.txt"
" was created", cmCacheManager::INTERNAL);
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fout << "# This is the CMakeCache file.\n"
<< "# For build in directory: " << currentcwd << "\n";
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cmCacheManager::CacheEntry* cmakeCacheEntry
= this->GetCacheEntry("CMAKE_COMMAND");
if ( cmakeCacheEntry )
{
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fout << "# It was generated by CMake: " <<
cmakeCacheEntry->Value << std::endl;
}
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fout << "# You can edit this file to change values found and used by cmake."
<< std::endl
<< "# If you do not want to change any of the values, simply exit the "
"editor." << std::endl
<< "# If you do want to change a value, simply edit, save, and exit "
"the editor." << std::endl
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<< "# The syntax for the file is as follows:\n"
<< "# KEY:TYPE=VALUE\n"
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<< "# KEY is the name of a variable in the cache.\n"
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<< "# TYPE is a hint to GUI's for the type of VALUE, DO NOT EDIT "
"TYPE!." << std::endl
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<< "# VALUE is the current value for the KEY.\n\n";
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fout << "########################\n";
fout << "# EXTERNAL cache entries\n";
fout << "########################\n";
fout << "\n";
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for( std::map<cmStdString, CacheEntry>::const_iterator i =
this->Cache.begin(); i != this->Cache.end(); ++i)
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{
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const CacheEntry& ce = (*i).second;
CacheEntryType t = ce.Type;
if(!ce.Initialized)
{
/*
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// This should be added in, but is not for now.
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cmSystemTools::Error("Cache entry \"", (*i).first.c_str(),
"\" is uninitialized");
*/
}
else if(t != INTERNAL)
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{
// Format is key:type=value
if(const char* help = ce.GetProperty("HELPSTRING"))
{
cmCacheManager::OutputHelpString(fout, help);
}
else
{
cmCacheManager::OutputHelpString(fout, "Missing description");
}
this->OutputKey(fout, i->first);
fout << ":" << cmCacheManagerTypes[t] << "=";
this->OutputValue(fout, ce.Value);
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fout << "\n\n";
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}
}
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fout << "\n";
fout << "########################\n";
fout << "# INTERNAL cache entries\n";
fout << "########################\n";
fout << "\n";
for( cmCacheManager::CacheIterator i = this->NewIterator();
!i.IsAtEnd(); i.Next())
{
if ( !i.Initialized() )
{
continue;
}
CacheEntryType t = i.GetType();
this->WritePropertyEntries(fout, i);
if(t == cmCacheManager::INTERNAL)
{
// Format is key:type=value
if(const char* help = i.GetProperty("HELPSTRING"))
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{
this->OutputHelpString(fout, help);
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}
this->OutputKey(fout, i.GetName());
fout << ":" << cmCacheManagerTypes[t] << "=";
this->OutputValue(fout, i.GetValue());
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fout << "\n";
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}
}
fout << "\n";
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fout.close();
cmSystemTools::CopyFileIfDifferent(tempFile.c_str(),
cacheFile.c_str());
cmSystemTools::RemoveFile(tempFile.c_str());
std::string checkCacheFile = path;
checkCacheFile += cmake::GetCMakeFilesDirectory();
cmSystemTools::MakeDirectory(checkCacheFile.c_str());
checkCacheFile += "/cmake.check_cache";
std::ofstream checkCache(checkCacheFile.c_str());
if(!checkCache)
{
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cmSystemTools::Error("Unable to open check cache file for write. ",
checkCacheFile.c_str());
return false;
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}
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checkCache << "# This file is generated by cmake for dependency checking "
"of the CMakeCache.txt file\n";
return true;
}
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bool cmCacheManager::DeleteCache(const char* path)
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{
std::string cacheFile = path;
cmSystemTools::ConvertToUnixSlashes(cacheFile);
std::string cmakeFiles = cacheFile;
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cacheFile += "/CMakeCache.txt";
cmSystemTools::RemoveFile(cacheFile.c_str());
// now remove the files in the CMakeFiles directory
// this cleans up language cache files
cmsys::Directory dir;
cmakeFiles += cmake::GetCMakeFilesDirectory();
dir.Load(cmakeFiles.c_str());
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for (unsigned long fileNum = 0;
fileNum < dir.GetNumberOfFiles();
++fileNum)
{
if(!cmSystemTools::
FileIsDirectory(dir.GetFile(fileNum)))
{
std::string fullPath = cmakeFiles;
fullPath += "/";
fullPath += dir.GetFile(fileNum);
cmSystemTools::RemoveFile(fullPath.c_str());
}
}
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return true;
}
void cmCacheManager::OutputKey(std::ostream& fout, std::string const& key)
{
// support : in key name by double quoting
const char* q = (key.find(':') != key.npos ||
key.find("//") == 0)? "\"" : "";
fout << q << key << q;
}
void cmCacheManager::OutputValue(std::ostream& fout, std::string const& value)
{
// if value has trailing space or tab, enclose it in single quotes
if (value.size() &&
(value[value.size() - 1] == ' ' ||
value[value.size() - 1] == '\t'))
{
fout << '\'' << value << '\'';
}
else
{
fout << value;
}
}
void cmCacheManager::OutputHelpString(std::ostream& fout,
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const std::string& helpString)
{
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std::string::size_type end = helpString.size();
if(end == 0)
{
return;
}
std::string oneLine;
std::string::size_type pos = 0;
for (std::string::size_type i=0; i<=end; i++)
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{
if ((i==end)
|| (helpString[i]=='\n')
|| ((i-pos >= 60) && (helpString[i]==' ')))
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{
fout << "//";
if (helpString[pos] == '\n')
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{
pos++;
fout << "\\n";
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}
oneLine = helpString.substr(pos, i - pos);
fout << oneLine.c_str() << "\n";
pos = i;
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}
}
}
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void cmCacheManager::RemoveCacheEntry(const char* key)
{
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CacheEntryMap::iterator i = this->Cache.find(key);
if(i != this->Cache.end())
{
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this->Cache.erase(i);
}
}
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cmCacheManager::CacheEntry *cmCacheManager::GetCacheEntry(const char* key)
{
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CacheEntryMap::iterator i = this->Cache.find(key);
if(i != this->Cache.end())
{
return &i->second;
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}
return 0;
}
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cmCacheManager::CacheIterator cmCacheManager::GetCacheIterator(
const char *key)
{
return CacheIterator(*this, key);
}
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const char* cmCacheManager::GetCacheValue(const char* key) const
{
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CacheEntryMap::const_iterator i = this->Cache.find(key);
if(i != this->Cache.end() &&
i->second.Initialized)
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{
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return i->second.Value.c_str();
}
return 0;
}
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void cmCacheManager::PrintCache(std::ostream& out) const
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{
out << "=================================================" << std::endl;
out << "CMakeCache Contents:" << std::endl;
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for(std::map<cmStdString, CacheEntry>::const_iterator i =
this->Cache.begin(); i != this->Cache.end(); ++i)
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{
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if((*i).second.Type != INTERNAL)
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{
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out << (*i).first.c_str() << " = " << (*i).second.Value.c_str()
<< std::endl;
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}
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}
out << "\n\n";
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out << "To change values in the CMakeCache, "
<< std::endl << "edit CMakeCache.txt in your output directory.\n";
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out << "=================================================" << std::endl;
}
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void cmCacheManager::AddCacheEntry(const char* key,
const char* value,
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const char* helpString,
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CacheEntryType type)
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{
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CacheEntry& e = this->Cache[key];
e.Properties.SetCMakeInstance(this->CMakeInstance);
if ( value )
{
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e.Value = value;
e.Initialized = true;
}
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else
{
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e.Value = "";
}
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e.Type = type;
// make sure we only use unix style paths
if(type == FILEPATH || type == PATH)
{
if(e.Value.find(';') != e.Value.npos)
{
std::vector<std::string> paths;
cmSystemTools::ExpandListArgument(e.Value, paths);
const char* sep = "";
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e.Value = "";
for(std::vector<std::string>::iterator i = paths.begin();
i != paths.end(); ++i)
{
cmSystemTools::ConvertToUnixSlashes(*i);
e.Value += sep;
e.Value += *i;
sep = ";";
}
}
else
{
cmSystemTools::ConvertToUnixSlashes(e.Value);
}
}
e.SetProperty("HELPSTRING", helpString? helpString :
"(This variable does not exist and should not be used)");
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this->Cache[key] = e;
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}
bool cmCacheManager::CacheIterator::IsAtEnd() const
{
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return this->Position == this->Container.Cache.end();
}
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void cmCacheManager::CacheIterator::Begin()
{
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this->Position = this->Container.Cache.begin();
}
bool cmCacheManager::CacheIterator::Find(const char* key)
{
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this->Position = this->Container.Cache.find(key);
return !this->IsAtEnd();
}
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void cmCacheManager::CacheIterator::Next()
{
if (!this->IsAtEnd())
{
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++this->Position;
}
}
void cmCacheManager::CacheIterator::SetValue(const char* value)
{
if (this->IsAtEnd())
{
return;
}
CacheEntry* entry = &this->GetEntry();
if ( value )
{
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entry->Value = value;
entry->Initialized = true;
}
else
{
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entry->Value = "";
}
}
//----------------------------------------------------------------------------
bool cmCacheManager::CacheIterator::GetValueAsBool() const
{
return cmSystemTools::IsOn(this->GetEntry().Value.c_str());
}
//----------------------------------------------------------------------------
const char*
cmCacheManager::CacheEntry::GetProperty(const char* prop) const
{
if(strcmp(prop, "TYPE") == 0)
{
return cmCacheManagerTypes[this->Type];
}
else if(strcmp(prop, "VALUE") == 0)
{
return this->Value.c_str();
}
bool c = false;
return
this->Properties.GetPropertyValue(prop, cmProperty::CACHE, c);
}
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//----------------------------------------------------------------------------
void cmCacheManager::CacheEntry::SetProperty(const char* prop,
const char* value)
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{
if(strcmp(prop, "TYPE") == 0)
{
this->Type = cmCacheManager::StringToType(value? value : "STRING");
}
else if(strcmp(prop, "VALUE") == 0)
{
this->Value = value? value : "";
}
else
{
this->Properties.SetProperty(prop, value, cmProperty::CACHE);
}
}
//----------------------------------------------------------------------------
void cmCacheManager::CacheEntry::AppendProperty(const char* prop,
const char* value)
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{
if(strcmp(prop, "TYPE") == 0)
{
this->Type = cmCacheManager::StringToType(value? value : "STRING");
}
else if(strcmp(prop, "VALUE") == 0)
{
if(value)
{
if(!this->Value.empty() && *value)
{
this->Value += ";";
}
this->Value += value;
}
}
else
{
this->Properties.AppendProperty(prop, value, cmProperty::CACHE);
}
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}
//----------------------------------------------------------------------------
const char* cmCacheManager::CacheIterator::GetProperty(const char* prop) const
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{
if(!this->IsAtEnd())
{
return this->GetEntry().GetProperty(prop);
}
return 0;
}
//----------------------------------------------------------------------------
void cmCacheManager::CacheIterator::SetProperty(const char* p, const char* v)
{
if(!this->IsAtEnd())
{
this->GetEntry().SetProperty(p, v);
}
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}
//----------------------------------------------------------------------------
void cmCacheManager::CacheIterator::AppendProperty(const char* p,
const char* v)
{
if(!this->IsAtEnd())
{
this->GetEntry().AppendProperty(p, v);
}
}
//----------------------------------------------------------------------------
bool cmCacheManager::CacheIterator::GetPropertyAsBool(const char* prop) const
{
if(const char* value = this->GetProperty(prop))
{
return cmSystemTools::IsOn(value);
}
return false;
}
//----------------------------------------------------------------------------
void cmCacheManager::CacheIterator::SetProperty(const char* p, bool v)
{
this->SetProperty(p, v ? "ON" : "OFF");
}
//----------------------------------------------------------------------------
bool cmCacheManager::CacheIterator::PropertyExists(const char* prop) const
{
return this->GetProperty(prop)? true:false;
}
//----------------------------------------------------------------------------
bool cmCacheManager::NeedCacheCompatibility(int major, int minor)
{
// Compatibility is not needed if the cache version is zero because
// the cache was created or modified by the user.
if(this->CacheMajorVersion == 0)
{
return false;
}
// Compatibility is needed if the cache version is equal to or lower
// than the given version.
unsigned int actual_compat =
CMake_VERSION_ENCODE(this->CacheMajorVersion, this->CacheMinorVersion, 0);
return (actual_compat &&
actual_compat <= CMake_VERSION_ENCODE(major, minor, 0));
}
//----------------------------------------------------------------------------
void cmCacheManager::DefineProperties(cmake *cm)
{
cm->DefineProperty
("ADVANCED", cmProperty::CACHE,
"True if entry should be hidden by default in GUIs.",
"This is a boolean value indicating whether the entry is considered "
"interesting only for advanced configuration. "
"The mark_as_advanced() command modifies this property."
);
cm->DefineProperty
("HELPSTRING", cmProperty::CACHE,
"Help associated with entry in GUIs.",
"This string summarizes the purpose of an entry to help users set it "
"through a CMake GUI."
);
cm->DefineProperty
("TYPE", cmProperty::CACHE,
"Widget type for entry in GUIs.",
"Cache entry values are always strings, but CMake GUIs present widgets "
"to help users set values. "
"The GUIs use this property as a hint to determine the widget type. "
"Valid TYPE values are:\n"
" BOOL = Boolean ON/OFF value.\n"
" PATH = Path to a directory.\n"
" FILEPATH = Path to a file.\n"
" STRING = Generic string value.\n"
" INTERNAL = Do not present in GUI at all.\n"
" STATIC = Value managed by CMake, do not change.\n"
" UNINITIALIZED = Type not yet specified.\n"
"Generally the TYPE of a cache entry should be set by the command "
"which creates it (set, option, find_library, etc.)."
);
cm->DefineProperty
("MODIFIED", cmProperty::CACHE,
"Internal management property. Do not set or get.",
"This is an internal cache entry property managed by CMake to "
"track interactive user modification of entries. Ignore it."
);
cm->DefineProperty
("STRINGS", cmProperty::CACHE,
"Enumerate possible STRING entry values for GUI selection.",
"For cache entries with type STRING, this enumerates a set of values. "
"CMake GUIs may use this to provide a selection widget instead of a "
"generic string entry field. "
"This is for convenience only. "
"CMake does not enforce that the value matches one of those listed."
);
cm->DefineProperty
("VALUE", cmProperty::CACHE,
"Value of a cache entry.",
"This property maps to the actual value of a cache entry. "
"Setting this property always sets the value without checking, so "
"use with care."
);
}