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21c573f682
Use the clang RemoveCStrCalls tool to automatically migrate the code. This was only run on linux, so does not have any positive or negative effect on other platforms.
198 lines
5.1 KiB
C++
198 lines
5.1 KiB
C++
/*============================================================================
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CMake - Cross Platform Makefile Generator
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Copyright 2000-2009 Kitware, Inc., Insight Software Consortium
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Distributed under the OSI-approved BSD License (the "License");
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see accompanying file Copyright.txt for details.
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This software is distributed WITHOUT ANY WARRANTY; without even the
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implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
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See the License for more information.
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============================================================================*/
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#include "cmLoadCacheCommand.h"
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#include <cmsys/RegularExpression.hxx>
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#include <cmsys/FStream.hxx>
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// cmLoadCacheCommand
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bool cmLoadCacheCommand
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::InitialPass(std::vector<std::string> const& args, cmExecutionStatus &)
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{
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if (args.size()< 1)
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{
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this->SetError("called with wrong number of arguments.");
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}
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if(args.size() >= 2 && args[1] == "READ_WITH_PREFIX")
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{
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return this->ReadWithPrefix(args);
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}
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// Cache entries to be excluded from the import list.
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// If this set is empty, all cache entries are brought in
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// and they can not be overridden.
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bool excludeFiles=false;
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unsigned int i;
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std::set<std::string> excludes;
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for(i=0; i<args.size(); i++)
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{
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if (excludeFiles)
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{
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excludes.insert(args[i]);
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}
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if (args[i] == "EXCLUDE")
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{
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excludeFiles=true;
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}
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if (excludeFiles && (args[i] == "INCLUDE_INTERNALS"))
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{
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break;
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}
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}
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// Internal cache entries to be imported.
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// If this set is empty, no internal cache entries are
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// brought in.
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bool includeFiles=false;
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std::set<std::string> includes;
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for(i=0; i<args.size(); i++)
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{
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if (includeFiles)
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{
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includes.insert(args[i]);
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}
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if (args[i] == "INCLUDE_INTERNALS")
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{
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includeFiles=true;
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}
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if (includeFiles && (args[i] == "EXCLUDE"))
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{
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break;
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}
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}
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// Loop over each build directory listed in the arguments. Each
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// directory has a cache file.
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for(i=0; i<args.size(); i++)
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{
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if ((args[i] == "EXCLUDE") || (args[i] == "INCLUDE_INTERNALS"))
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{
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break;
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}
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this->Makefile->GetCacheManager()->LoadCache(args[i], false,
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excludes, includes);
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}
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return true;
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}
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//----------------------------------------------------------------------------
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bool cmLoadCacheCommand::ReadWithPrefix(std::vector<std::string> const& args)
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{
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// Make sure we have a prefix.
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if(args.size() < 3)
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{
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this->SetError("READ_WITH_PREFIX form must specify a prefix.");
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return false;
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}
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// Make sure the cache file exists.
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std::string cacheFile = args[0]+"/CMakeCache.txt";
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if(!cmSystemTools::FileExists(cacheFile.c_str()))
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{
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std::string e = "Cannot load cache file from " + cacheFile;
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this->SetError(e);
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return false;
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}
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// Prepare the table of variables to read.
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this->Prefix = args[2];
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for(unsigned int i=3; i < args.size(); ++i)
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{
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this->VariablesToRead.insert(args[i]);
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}
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// Read the cache file.
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cmsys::ifstream fin(cacheFile.c_str());
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// This is a big hack read loop to overcome a buggy ifstream
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// implementation on HP-UX. This should work on all platforms even
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// for small buffer sizes.
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const int bufferSize = 4096;
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char buffer[bufferSize];
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std::string line;
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while(fin)
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{
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// Read a block of the file.
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fin.read(buffer, bufferSize);
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if(fin.gcount())
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{
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// Parse for newlines directly.
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const char* i = buffer;
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const char* end = buffer+fin.gcount();
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while(i != end)
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{
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const char* begin = i;
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while(i != end && *i != '\n') { ++i; }
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if(i == begin || *(i-1) != '\r')
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{
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// Include this portion of the line.
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line += std::string(begin, i-begin);
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}
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else
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{
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// Include this portion of the line.
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// Don't include the \r in a \r\n pair.
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line += std::string(begin, i-1-begin);
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}
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if(i != end)
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{
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// Completed a line.
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this->CheckLine(line.c_str());
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line = "";
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// Skip the newline character.
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++i;
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}
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}
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}
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}
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if(line.length())
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{
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// Partial last line.
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this->CheckLine(line.c_str());
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}
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return true;
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}
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//----------------------------------------------------------------------------
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void cmLoadCacheCommand::CheckLine(const char* line)
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{
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// Check one line of the cache file.
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std::string var;
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std::string value;
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cmCacheManager::CacheEntryType type = cmCacheManager::UNINITIALIZED;
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if(cmCacheManager::ParseEntry(line, var, value, type))
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{
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// Found a real entry. See if this one was requested.
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if(this->VariablesToRead.find(var) != this->VariablesToRead.end())
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{
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// This was requested. Set this variable locally with the given
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// prefix.
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var = this->Prefix + var;
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if(value.length())
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{
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this->Makefile->AddDefinition(var, value.c_str());
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}
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else
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{
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this->Makefile->RemoveDefinition(var);
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}
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}
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}
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}
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