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e0228e2b04
CMake/Source/cmcmd.cxx
Brad King e0228e2b04 cmake: Improve '-E create_symlink' edge case handling (#14713) 
The logic added by commit ffc0b5e4 (Overwrite the symlink if it already
exists, 2007-02-15) does not recognize and remove existing broken links
before replacing them.  Improve the logic to remove any existing
destination file or link (but not directory).  On failure, report an
error message explaining why the existing path could not be removed or
the new one could not be created.

Add a RunCMake.CommandLine test to cover 'cmake -E' cases.  Start with
test cases covering 'cmake -E create_symlink' behavior on UNIX platforms.
2014-01-20 14:02:21 -05:00

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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 "cmcmd.h"
#include "cmMakefile.h"
#include "cmLocalGenerator.h"
#include "cmGlobalGenerator.h"
#include "cmQtAutoGenerators.h"
#include "cmVersion.h"
#if defined(CMAKE_BUILD_WITH_CMAKE)
# include "cmDependsFortran.h" // For -E cmake_copy_f90_mod callback.
# include <cmsys/Terminal.h>
#endif
#include <cmsys/Directory.hxx>
#include <cmsys/Process.h>
#include <cmsys/FStream.hxx>
#if defined(CMAKE_HAVE_VS_GENERATORS)
#include "cmCallVisualStudioMacro.h"
#include "cmVisualStudioWCEPlatformParser.h"
#endif
#include <time.h>
#include <stdlib.h> // required for atoi
void CMakeCommandUsage(const char* program)
{
cmOStringStream errorStream;
#ifdef CMAKE_BUILD_WITH_CMAKE
errorStream
<< "cmake version " << cmVersion::GetCMakeVersion() << "\n";
#else
errorStream
<< "cmake bootstrap\n";
#endif
// If you add new commands, change here,
// and in cmakemain.cxx in the options table
errorStream
<< "Usage: " << program << " -E [command] [arguments ...]\n"
<< "Available commands: \n"
<< " chdir dir cmd [args]... - run command in a given directory\n"
<< " compare_files file1 file2 - check if file1 is same as file2\n"
<< " copy file destination - copy file to destination (either file "
"or directory)\n"
<< " copy_directory source destination - copy directory 'source' "
"content to directory 'destination'\n"
<< " copy_if_different in-file out-file - copy file if input has "
"changed\n"
<< " echo [string]... - displays arguments as text\n"
<< " echo_append [string]... - displays arguments as text but no new "
"line\n"
<< " environment - display the current environment\n"
<< " make_directory dir - create a directory\n"
<< " md5sum file1 [...] - compute md5sum of files\n"
<< " remove [-f] file1 file2 ... - remove the file(s), use -f to force "
"it\n"
<< " remove_directory dir - remove a directory and its contents\n"
<< " rename oldname newname - rename a file or directory "
"(on one volume)\n"
<< " tar [cxt][vfz][cvfj] file.tar [file/dir1 file/dir2 ...]\n"
<< " - create or extract a tar or zip archive\n"
<< " time command [args] ... - run command and return elapsed time\n"
<< " touch file - touch a file.\n"
<< " touch_nocreate file - touch a file but do not create it.\n"
#if defined(_WIN32) && !defined(__CYGWIN__)
<< "Available on Windows only:\n"
<< " delete_regv key - delete registry value\n"
<< " env_vs8_wince sdkname - displays a batch file which sets the "
"environment for the provided Windows CE SDK installed in VS2005\n"
<< " env_vs9_wince sdkname - displays a batch file which sets the "
"environment for the provided Windows CE SDK installed in VS2008\n"
<< " write_regv key value - write registry value\n"
#else
<< "Available on UNIX only:\n"
<< " create_symlink old new - create a symbolic link new -> old\n"
#endif
;
cmSystemTools::Error(errorStream.str().c_str());
}
int cmcmd::ExecuteCMakeCommand(std::vector<std::string>& args)
{
// IF YOU ADD A NEW COMMAND, DOCUMENT IT ABOVE and in cmakemain.cxx
if (args.size() > 1)
{
// Copy file
if (args[1] == "copy" && args.size() == 4)
{
if(!cmSystemTools::cmCopyFile(args[2].c_str(), args[3].c_str()))
{
std::cerr << "Error copying file \"" << args[2].c_str()
<< "\" to \"" << args[3].c_str() << "\".\n";
return 1;
}
return 0;
}
// Copy file if different.
if (args[1] == "copy_if_different" && args.size() == 4)
{
if(!cmSystemTools::CopyFileIfDifferent(args[2].c_str(),
args[3].c_str()))
{
std::cerr << "Error copying file (if different) from \""
<< args[2].c_str() << "\" to \"" << args[3].c_str()
<< "\".\n";
return 1;
}
return 0;
}
// Copy directory content
if (args[1] == "copy_directory" && args.size() == 4)
{
if(!cmSystemTools::CopyADirectory(args[2].c_str(), args[3].c_str()))
{
std::cerr << "Error copying directory from \""
<< args[2].c_str() << "\" to \"" << args[3].c_str()
<< "\".\n";
return 1;
}
return 0;
}
// Rename a file or directory
if (args[1] == "rename" && args.size() == 4)
{
if(!cmSystemTools::RenameFile(args[2].c_str(), args[3].c_str()))
{
std::string e = cmSystemTools::GetLastSystemError();
std::cerr << "Error renaming from \""
<< args[2].c_str() << "\" to \"" << args[3].c_str()
<< "\": " << e << "\n";
return 1;
}
return 0;
}
// Compare files
if (args[1] == "compare_files" && args.size() == 4)
{
if(cmSystemTools::FilesDiffer(args[2].c_str(), args[3].c_str()))
{
std::cerr << "Files \""
<< args[2].c_str() << "\" to \"" << args[3].c_str()
<< "\" are different.\n";
return 1;
}
return 0;
}
// Echo string
else if (args[1] == "echo" )
{
unsigned int cc;
const char* space = "";
for ( cc = 2; cc < args.size(); cc ++ )
{
std::cout << space << args[cc];
space = " ";
}
std::cout << std::endl;
return 0;
}
// Echo string no new line
else if (args[1] == "echo_append" )
{
unsigned int cc;
const char* space = "";
for ( cc = 2; cc < args.size(); cc ++ )
{
std::cout << space << args[cc];
space = " ";
}
return 0;
}
#if defined(CMAKE_BUILD_WITH_CMAKE)
// Command to create a symbolic link. Fails on platforms not
// supporting them.
else if (args[1] == "environment" )
{
std::vector<std::string> env = cmSystemTools::GetEnvironmentVariables();
std::vector<std::string>::iterator it;
for ( it = env.begin(); it != env.end(); ++ it )
{
std::cout << it->c_str() << std::endl;
}
return 0;
}
#endif
else if (args[1] == "make_directory" && args.size() == 3)
{
if(!cmSystemTools::MakeDirectory(args[2].c_str()))
{
std::cerr << "Error making directory \"" << args[2].c_str()
<< "\".\n";
return 1;
}
return 0;
}
else if (args[1] == "remove_directory" && args.size() == 3)
{
if(cmSystemTools::FileIsDirectory(args[2].c_str()) &&
!cmSystemTools::RemoveADirectory(args[2].c_str()))
{
std::cerr << "Error removing directory \"" << args[2].c_str()
<< "\".\n";
return 1;
}
return 0;
}
// Remove file
else if (args[1] == "remove" && args.size() > 2)
{
bool force = false;
for (std::string::size_type cc = 2; cc < args.size(); cc ++)
{
if(args[cc] == "\\-f" || args[cc] == "-f")
{
force = true;
}
else
{
// Complain if the file could not be removed, still exists,
// and the -f option was not given.
if(!cmSystemTools::RemoveFile(args[cc].c_str()) && !force &&
cmSystemTools::FileExists(args[cc].c_str()))
{
return 1;
}
}
}
return 0;
}
// Touch file
else if (args[1] == "touch" && args.size() > 2)
{
for (std::string::size_type cc = 2; cc < args.size(); cc ++)
{
// Complain if the file could not be removed, still exists,
// and the -f option was not given.
if(!cmSystemTools::Touch(args[cc].c_str(), true))
{
return 1;
}
}
return 0;
}
// Touch file
else if (args[1] == "touch_nocreate" && args.size() > 2)
{
for (std::string::size_type cc = 2; cc < args.size(); cc ++)
{
// Complain if the file could not be removed, still exists,
// and the -f option was not given.
if(!cmSystemTools::Touch(args[cc].c_str(), false))
{
return 1;
}
}
return 0;
}
// Clock command
else if (args[1] == "time" && args.size() > 2)
{
std::string command = args[2];
for (std::string::size_type cc = 3; cc < args.size(); cc ++)
{
command += " ";
command += args[cc];
}
clock_t clock_start, clock_finish;
time_t time_start, time_finish;
time(&time_start);
clock_start = clock();
int ret =0;
cmSystemTools::RunSingleCommand(command.c_str(), 0, &ret);
clock_finish = clock();
time(&time_finish);
double clocks_per_sec = static_cast<double>(CLOCKS_PER_SEC);
std::cout << "Elapsed time: "
<< static_cast<long>(time_finish - time_start) << " s. (time)"
<< ", "
<< static_cast<double>(clock_finish - clock_start) / clocks_per_sec
<< " s. (clock)"
<< "\n";
return ret;
}
// Command to calculate the md5sum of a file
else if (args[1] == "md5sum" && args.size() >= 3)
{
char md5out[32];
int retval = 0;
for (std::string::size_type cc = 2; cc < args.size(); cc ++)
{
const char *filename = args[cc].c_str();
// Cannot compute md5sum of a directory
if(cmSystemTools::FileIsDirectory(filename))
{
std::cerr << "Error: " << filename << " is a directory" << std::endl;
retval++;
}
else if(!cmSystemTools::ComputeFileMD5(filename, md5out))
{
// To mimic md5sum behavior in a shell:
std::cerr << filename << ": No such file or directory" << std::endl;
retval++;
}
else
{
std::cout << std::string(md5out,32) << " " << filename << std::endl;
}
}
return retval;
}
// Command to change directory and run a program.
else if (args[1] == "chdir" && args.size() >= 4)
{
std::string directory = args[2];
if(!cmSystemTools::FileExists(directory.c_str()))
{
cmSystemTools::Error("Directory does not exist for chdir command: ",
args[2].c_str());
return 1;
}
std::string command = "\"";
command += args[3];
command += "\"";
for (std::string::size_type cc = 4; cc < args.size(); cc ++)
{
command += " \"";
command += args[cc];
command += "\"";
}
int retval = 0;
int timeout = 0;
if ( cmSystemTools::RunSingleCommand(command.c_str(), 0, &retval,
directory.c_str(), cmSystemTools::OUTPUT_NORMAL, timeout) )
{
return retval;
}
return 1;
}
// Command to start progress for a build
else if (args[1] == "cmake_progress_start" && args.size() == 4)
{
// basically remove the directory
std::string dirName = args[2];
dirName += "/Progress";
cmSystemTools::RemoveADirectory(dirName.c_str());
// is the last argument a filename that exists?
FILE *countFile = cmsys::SystemTools::Fopen(args[3].c_str(),"r");
int count;
if (countFile)
{
if (1!=fscanf(countFile,"%i",&count))
{
cmSystemTools::Message("Could not read from count file.");
}
fclose(countFile);
}
else
{
count = atoi(args[3].c_str());
}
if (count)
{
cmSystemTools::MakeDirectory(dirName.c_str());
// write the count into the directory
std::string fName = dirName;
fName += "/count.txt";
FILE *progFile = cmsys::SystemTools::Fopen(fName.c_str(),"w");
if (progFile)
{
fprintf(progFile,"%i\n",count);
fclose(progFile);
}
}
return 0;
}
// Command to report progress for a build
else if (args[1] == "cmake_progress_report" && args.size() >= 3)
{
std::string dirName = args[2];
dirName += "/Progress";
std::string fName;
FILE *progFile;
// read the count
fName = dirName;
fName += "/count.txt";
progFile = cmsys::SystemTools::Fopen(fName.c_str(),"r");
int count = 0;
if (!progFile)
{
return 0;
}
else
{
if (1!=fscanf(progFile,"%i",&count))
{
cmSystemTools::Message("Could not read from progress file.");
}
fclose(progFile);
}
unsigned int i;
for (i = 3; i < args.size(); ++i)
{
fName = dirName;
fName += "/";
fName += args[i];
progFile = cmsys::SystemTools::Fopen(fName.c_str(),"w");
if (progFile)
{
fprintf(progFile,"empty");
fclose(progFile);
}
}
int fileNum = static_cast<int>
(cmsys::Directory::GetNumberOfFilesInDirectory(dirName.c_str()));
if (count > 0)
{
// print the progress
fprintf(stdout,"[%3i%%] ",((fileNum-3)*100)/count);
}
return 0;
}
// Command to create a symbolic link. Fails on platforms not
// supporting them.
else if (args[1] == "create_symlink" && args.size() == 4)
{
const char* destinationFileName = args[3].c_str();
if((cmSystemTools::FileExists(destinationFileName) ||
cmSystemTools::FileIsSymlink(destinationFileName)) &&
!cmSystemTools::RemoveFile(destinationFileName))
{
std::string emsg = cmSystemTools::GetLastSystemError();
std::cerr <<
"failed to create symbolic link '" << destinationFileName <<
"' because existing path cannot be removed: " << emsg << "\n";
return 1;
}
if(!cmSystemTools::CreateSymlink(args[2].c_str(), args[3].c_str()))
{
std::string emsg = cmSystemTools::GetLastSystemError();
std::cerr <<
"failed to create symbolic link '" << destinationFileName <<
"': " << emsg << "\n";
return 1;
}
return 0;
}
// Internal CMake shared library support.
else if (args[1] == "cmake_symlink_library" && args.size() == 5)
{
return cmcmd::SymlinkLibrary(args);
}
// Internal CMake versioned executable support.
else if (args[1] == "cmake_symlink_executable" && args.size() == 4)
{
return cmcmd::SymlinkExecutable(args);
}
#if defined(CMAKE_HAVE_VS_GENERATORS)
// Internal CMake support for calling Visual Studio macros.
else if (args[1] == "cmake_call_visual_studio_macro" && args.size() >= 4)
{
// args[2] = full path to .sln file or "ALL"
// args[3] = name of Visual Studio macro to call
// args[4..args.size()-1] = [optional] args for Visual Studio macro
std::string macroArgs;
if (args.size() > 4)
{
macroArgs = args[4];
for (size_t i = 5; i < args.size(); ++i)
{
macroArgs += " ";
macroArgs += args[i];
}
}
return cmCallVisualStudioMacro::CallMacro(args[2], args[3],
macroArgs, true);
}
#endif
// Internal CMake dependency scanning support.
else if (args[1] == "cmake_depends" && args.size() >= 6)
{
// Use the make system's VERBOSE environment variable to enable
// verbose output. This can be skipped by also setting CMAKE_NO_VERBOSE
// (which is set by the Eclipse and KDevelop generators).
bool verbose = ((cmSystemTools::GetEnv("VERBOSE") != 0)
&& (cmSystemTools::GetEnv("CMAKE_NO_VERBOSE") == 0));
// Create a cmake object instance to process dependencies.
cmake cm;
std::string gen;
std::string homeDir;
std::string startDir;
std::string homeOutDir;
std::string startOutDir;
std::string depInfo;
bool color = false;
if(args.size() >= 8)
{
// Full signature:
//
// -E cmake_depends <generator>
// <home-src-dir> <start-src-dir>
// <home-out-dir> <start-out-dir>
// <dep-info> [--color=$(COLOR)]
//
// All paths are provided.
gen = args[2];
homeDir = args[3];
startDir = args[4];
homeOutDir = args[5];
startOutDir = args[6];
depInfo = args[7];
if(args.size() >= 9 &&
args[8].length() >= 8 &&
args[8].substr(0, 8) == "--color=")
{
// Enable or disable color based on the switch value.
color = (args[8].size() == 8 ||
cmSystemTools::IsOn(args[8].substr(8).c_str()));
}
}
else
{
// Support older signature for existing makefiles:
//
// -E cmake_depends <generator>
// <home-out-dir> <start-out-dir>
// <dep-info>
//
// Just pretend the source directories are the same as the
// binary directories so at least scanning will work.
gen = args[2];
homeDir = args[3];
startDir = args[4];
homeOutDir = args[3];
startOutDir = args[3];
depInfo = args[5];
}
// Create a local generator configured for the directory in
// which dependencies will be scanned.
homeDir = cmSystemTools::CollapseFullPath(homeDir.c_str());
startDir = cmSystemTools::CollapseFullPath(startDir.c_str());
homeOutDir = cmSystemTools::CollapseFullPath(homeOutDir.c_str());
startOutDir = cmSystemTools::CollapseFullPath(startOutDir.c_str());
cm.SetHomeDirectory(homeDir.c_str());
cm.SetStartDirectory(startDir.c_str());
cm.SetHomeOutputDirectory(homeOutDir.c_str());
cm.SetStartOutputDirectory(startOutDir.c_str());
if(cmGlobalGenerator* ggd = cm.CreateGlobalGenerator(gen.c_str()))
{
cm.SetGlobalGenerator(ggd);
cmsys::auto_ptr<cmLocalGenerator> lgd(ggd->CreateLocalGenerator());
lgd->GetMakefile()->SetStartDirectory(startDir.c_str());
lgd->GetMakefile()->SetStartOutputDirectory(startOutDir.c_str());
lgd->GetMakefile()->MakeStartDirectoriesCurrent();
// Actually scan dependencies.
return lgd->UpdateDependencies(depInfo.c_str(),
verbose, color)? 0 : 2;
}
return 1;
}
// Internal CMake link script support.
else if (args[1] == "cmake_link_script" && args.size() >= 3)
{
return cmcmd::ExecuteLinkScript(args);
}
// Internal CMake unimplemented feature notification.
else if (args[1] == "cmake_unimplemented_variable")
{
std::cerr << "Feature not implemented for this platform.";
if(args.size() == 3)
{
std::cerr << " Variable " << args[2] << " is not set.";
}
std::cerr << std::endl;
return 1;
}
else if (args[1] == "vs_link_exe")
{
return cmcmd::VisualStudioLink(args, 1);
}
else if (args[1] == "vs_link_dll")
{
return cmcmd::VisualStudioLink(args, 2);
}
#ifdef CMAKE_BUILD_WITH_CMAKE
// Internal CMake color makefile support.
else if (args[1] == "cmake_echo_color")
{
return cmcmd::ExecuteEchoColor(args);
}
else if (args[1] == "cmake_autogen" && args.size() >= 4)
{
cmQtAutoGenerators autogen;
const char *config = args[3].empty() ? 0 : args[3].c_str();
bool autogenSuccess = autogen.Run(args[2].c_str(), config);
return autogenSuccess ? 0 : 1;
}
#endif
// Tar files
else if (args[1] == "tar" && args.size() > 3)
{
std::string flags = args[2];
std::string outFile = args[3];
std::vector<cmStdString> files;
for (std::string::size_type cc = 4; cc < args.size(); cc ++)
{
files.push_back(args[cc]);
}
bool gzip = false;
bool bzip2 = false;
bool verbose = false;
if ( flags.find_first_of('j') != flags.npos )
{
bzip2 = true;
}
if ( flags.find_first_of('z') != flags.npos )
{
gzip = true;
}
if ( flags.find_first_of('v') != flags.npos )
{
verbose = true;
}
if ( flags.find_first_of('t') != flags.npos )
{
if ( !cmSystemTools::ListTar(outFile.c_str(), gzip, verbose) )
{
cmSystemTools::Error("Problem creating tar: ", outFile.c_str());
return 1;
}
}
else if ( flags.find_first_of('c') != flags.npos )
{
if ( !cmSystemTools::CreateTar(
outFile.c_str(), files, gzip, bzip2, verbose) )
{
cmSystemTools::Error("Problem creating tar: ", outFile.c_str());
return 1;
}
}
else if ( flags.find_first_of('x') != flags.npos )
{
if ( !cmSystemTools::ExtractTar(
outFile.c_str(), gzip, verbose) )
{
cmSystemTools::Error("Problem extracting tar: ", outFile.c_str());
return 1;
}
#ifdef WIN32
// OK, on windows 7 after we untar some files,
// sometimes we can not rename the directory after
// the untar is done. This breaks the external project
// untar and rename code. So, by default we will wait
// 1/10th of a second after the untar. If CMAKE_UNTAR_DELAY
// is set in the env, its value will be used instead of 100.
int delay = 100;
const char* delayVar = cmSystemTools::GetEnv("CMAKE_UNTAR_DELAY");
if(delayVar)
{
delay = atoi(delayVar);
}
if(delay)
{
cmSystemTools::Delay(delay);
}
#endif
}
return 0;
}
#if defined(CMAKE_BUILD_WITH_CMAKE)
// Internal CMake Fortran module support.
else if (args[1] == "cmake_copy_f90_mod" && args.size() >= 4)
{
return cmDependsFortran::CopyModule(args)? 0 : 1;
}
#endif
#if defined(_WIN32) && !defined(__CYGWIN__)
// Write registry value
else if (args[1] == "write_regv" && args.size() > 3)
{
return cmSystemTools::WriteRegistryValue(args[2].c_str(),
args[3].c_str()) ? 0 : 1;
}
// Delete registry value
else if (args[1] == "delete_regv" && args.size() > 2)
{
return cmSystemTools::DeleteRegistryValue(args[2].c_str()) ? 0 : 1;
}
// Remove file
else if (args[1] == "comspec" && args.size() > 2)
{
std::cerr << "Win9x helper \"cmake -E comspec\" no longer supported\n";
return 1;
}
else if (args[1] == "env_vs8_wince" && args.size() == 3)
{
return cmcmd::WindowsCEEnvironment("8.0", args[2]);
}
else if (args[1] == "env_vs9_wince" && args.size() == 3)
{
return cmcmd::WindowsCEEnvironment("9.0", args[2]);
}
#endif
}
::CMakeCommandUsage(args[0].c_str());
return 1;
}
//----------------------------------------------------------------------------
int cmcmd::SymlinkLibrary(std::vector<std::string>& args)
{
int result = 0;
std::string realName = args[2];
std::string soName = args[3];
std::string name = args[4];
if(soName != realName)
{
if(!cmcmd::SymlinkInternal(realName, soName))
{
cmSystemTools::ReportLastSystemError("cmake_symlink_library");
result = 1;
}
}
if(name != soName)
{
if(!cmcmd::SymlinkInternal(soName, name))
{
cmSystemTools::ReportLastSystemError("cmake_symlink_library");
result = 1;
}
}
return result;
}
//----------------------------------------------------------------------------
int cmcmd::SymlinkExecutable(std::vector<std::string>& args)
{
int result = 0;
std::string realName = args[2];
std::string name = args[3];
if(name != realName)
{
if(!cmcmd::SymlinkInternal(realName, name))
{
cmSystemTools::ReportLastSystemError("cmake_symlink_executable");
result = 1;
}
}
return result;
}
//----------------------------------------------------------------------------
bool cmcmd::SymlinkInternal(std::string const& file, std::string const& link)
{
if(cmSystemTools::FileExists(link.c_str()) ||
cmSystemTools::FileIsSymlink(link.c_str()))
{
cmSystemTools::RemoveFile(link.c_str());
}
#if defined(_WIN32) && !defined(__CYGWIN__)
return cmSystemTools::CopyFileAlways(file.c_str(), link.c_str());
#else
std::string linktext = cmSystemTools::GetFilenameName(file);
return cmSystemTools::CreateSymlink(linktext.c_str(), link.c_str());
#endif
}
//----------------------------------------------------------------------------
#ifdef CMAKE_BUILD_WITH_CMAKE
int cmcmd::ExecuteEchoColor(std::vector<std::string>& args)
{
// The arguments are
// argv[0] == <cmake-executable>
// argv[1] == cmake_echo_color
bool enabled = true;
int color = cmsysTerminal_Color_Normal;
bool newline = true;
for(unsigned int i=2; i < args.size(); ++i)
{
if(args[i].find("--switch=") == 0)
{
// Enable or disable color based on the switch value.
std::string value = args[i].substr(9);
if(!value.empty())
{
if(cmSystemTools::IsOn(value.c_str()))
{
enabled = true;
}
else
{
enabled = false;
}
}
}
else if(args[i] == "--normal")
{
color = cmsysTerminal_Color_Normal;
}
else if(args[i] == "--black")
{
color = cmsysTerminal_Color_ForegroundBlack;
}
else if(args[i] == "--red")
{
color = cmsysTerminal_Color_ForegroundRed;
}
else if(args[i] == "--green")
{
color = cmsysTerminal_Color_ForegroundGreen;
}
else if(args[i] == "--yellow")
{
color = cmsysTerminal_Color_ForegroundYellow;
}
else if(args[i] == "--blue")
{
color = cmsysTerminal_Color_ForegroundBlue;
}
else if(args[i] == "--magenta")
{
color = cmsysTerminal_Color_ForegroundMagenta;
}
else if(args[i] == "--cyan")
{
color = cmsysTerminal_Color_ForegroundCyan;
}
else if(args[i] == "--white")
{
color = cmsysTerminal_Color_ForegroundWhite;
}
else if(args[i] == "--bold")
{
color |= cmsysTerminal_Color_ForegroundBold;
}
else if(args[i] == "--no-newline")
{
newline = false;
}
else if(args[i] == "--newline")
{
newline = true;
}
else
{
// Color is enabled. Print with the current color.
cmSystemTools::MakefileColorEcho(color, args[i].c_str(),
newline, enabled);
}
}
return 0;
}
#else
int cmcmd::ExecuteEchoColor(std::vector<std::string>&)
{
return 1;
}
#endif
//----------------------------------------------------------------------------
int cmcmd::ExecuteLinkScript(std::vector<std::string>& args)
{
// The arguments are
// argv[0] == <cmake-executable>
// argv[1] == cmake_link_script
// argv[2] == <link-script-name>
// argv[3] == --verbose=?
bool verbose = false;
if(args.size() >= 4)
{
if(args[3].find("--verbose=") == 0)
{
if(!cmSystemTools::IsOff(args[3].substr(10).c_str()))
{
verbose = true;
}
}
}
// Allocate a process instance.
cmsysProcess* cp = cmsysProcess_New();
if(!cp)
{
std::cerr << "Error allocating process instance in link script."
<< std::endl;
return 1;
}
// Children should share stdout and stderr with this process.
cmsysProcess_SetPipeShared(cp, cmsysProcess_Pipe_STDOUT, 1);
cmsysProcess_SetPipeShared(cp, cmsysProcess_Pipe_STDERR, 1);
// Run the command lines verbatim.
cmsysProcess_SetOption(cp, cmsysProcess_Option_Verbatim, 1);
// Read command lines from the script.
cmsys::ifstream fin(args[2].c_str());
if(!fin)
{
std::cerr << "Error opening link script \""
<< args[2] << "\"" << std::endl;
return 1;
}
// Run one command at a time.
std::string command;
int result = 0;
while(result == 0 && cmSystemTools::GetLineFromStream(fin, command))
{
// Skip empty command lines.
if(command.find_first_not_of(" \t") == command.npos)
{
continue;
}
// Setup this command line.
const char* cmd[2] = {command.c_str(), 0};
cmsysProcess_SetCommand(cp, cmd);
// Report the command if verbose output is enabled.
if(verbose)
{
std::cout << command << std::endl;
}
// Run the command and wait for it to exit.
cmsysProcess_Execute(cp);
cmsysProcess_WaitForExit(cp, 0);
// Report failure if any.
switch(cmsysProcess_GetState(cp))
{
case cmsysProcess_State_Exited:
{
int value = cmsysProcess_GetExitValue(cp);
if(value != 0)
{
result = value;
}
}
break;
case cmsysProcess_State_Exception:
std::cerr << "Error running link command: "
<< cmsysProcess_GetExceptionString(cp) << std::endl;
result = 1;
break;
case cmsysProcess_State_Error:
std::cerr << "Error running link command: "
<< cmsysProcess_GetErrorString(cp) << std::endl;
result = 2;
break;
default:
break;
};
}
// Free the process instance.
cmsysProcess_Delete(cp);
// Return the final resulting return value.
return result;
}
//----------------------------------------------------------------------------
int cmcmd::WindowsCEEnvironment(const char* version, const std::string& name)
{
#if defined(CMAKE_HAVE_VS_GENERATORS)
cmVisualStudioWCEPlatformParser parser(name.c_str());
parser.ParseVersion(version);
if (parser.Found())
{
std::cout << "@echo off" << std::endl;
std::cout << "echo Environment Selection: " << name << std::endl;
std::cout << "set PATH=" << parser.GetPathDirectories() << std::endl;
std::cout << "set INCLUDE=" << parser.GetIncludeDirectories() <<std::endl;
std::cout << "set LIB=" << parser.GetLibraryDirectories() <<std::endl;
return 0;
}
#else
(void)version;
#endif
std::cerr << "Could not find " << name;
return -1;
}
// For visual studio 2005 and newer manifest files need to be embedded into
// exe and dll's. This code does that in such a way that incremental linking
// still works.
int cmcmd::VisualStudioLink(std::vector<std::string>& args, int type)
{
if(args.size() < 2)
{
return -1;
}
bool verbose = false;
if(cmSystemTools::GetEnv("VERBOSE"))
{
verbose = true;
}
std::vector<std::string> expandedArgs;
for(std::vector<std::string>::iterator i = args.begin();
i != args.end(); ++i)
{
// check for nmake temporary files
if((*i)[0] == '@' && i->find("@CMakeFiles") != 0 )
{
cmsys::ifstream fin(i->substr(1).c_str());
std::string line;
while(cmSystemTools::GetLineFromStream(fin,
line))
{
cmSystemTools::ParseWindowsCommandLine(line.c_str(), expandedArgs);
}
}
else
{
expandedArgs.push_back(*i);
}
}
bool hasIncremental = false;
bool hasManifest = true;
for(std::vector<std::string>::iterator i = expandedArgs.begin();
i != expandedArgs.end(); ++i)
{
if(cmSystemTools::Strucmp(i->c_str(), "/INCREMENTAL:YES") == 0)
{
hasIncremental = true;
}
if(cmSystemTools::Strucmp(i->c_str(), "/INCREMENTAL") == 0)
{
hasIncremental = true;
}
if(cmSystemTools::Strucmp(i->c_str(), "/MANIFEST:NO") == 0)
{
hasManifest = false;
}
}
if(hasIncremental && hasManifest)
{
if(verbose)
{
std::cout << "Visual Studio Incremental Link with embedded manifests\n";
}
return cmcmd::VisualStudioLinkIncremental(expandedArgs, type, verbose);
}
if(verbose)
{
if(!hasIncremental)
{
std::cout << "Visual Studio Non-Incremental Link\n";
}
else
{
std::cout << "Visual Studio Incremental Link without manifests\n";
}
}
return cmcmd::VisualStudioLinkNonIncremental(expandedArgs,
type, hasManifest, verbose);
}
int cmcmd::ParseVisualStudioLinkCommand(std::vector<std::string>& args,
std::vector<cmStdString>& command,
std::string& targetName)
{
std::vector<std::string>::iterator i = args.begin();
i++; // skip -E
i++; // skip vs_link_dll or vs_link_exe
command.push_back(*i);
i++; // move past link command
for(; i != args.end(); ++i)
{
command.push_back(*i);
if(i->find("/Fe") == 0)
{
targetName = i->substr(3);
}
if(i->find("/out:") == 0)
{
targetName = i->substr(5);
}
}
if(targetName.size() == 0 || command.size() == 0)
{
return -1;
}
return 0;
}
bool cmcmd::RunCommand(const char* comment,
std::vector<cmStdString>& command,
bool verbose,
int* retCodeOut)
{
if(verbose)
{
std::cout << comment << ":\n";
for(std::vector<cmStdString>::iterator i = command.begin();
i != command.end(); ++i)
{
std::cout << i->c_str() << " ";
}
std::cout << "\n";
}
std::string output;
int retCode =0;
// use rc command to create .res file
cmSystemTools::RunSingleCommand(command,
&output,
&retCode, 0, cmSystemTools::OUTPUT_NONE);
// always print the output of the command, unless
// it is the dumb rc command banner, but if the command
// returned an error code then print the output anyway as
// the banner may be mixed with some other important information.
if(output.find("Resource Compiler Version") == output.npos
|| retCode !=0)
{
std::cout << output;
}
// if retCodeOut is requested then always return true
// and set the retCodeOut to retCode
if(retCodeOut)
{
*retCodeOut = retCode;
return true;
}
if(retCode != 0)
{
std::cout << comment << " failed. with " << retCode << "\n";
}
return retCode == 0;
}
int cmcmd::VisualStudioLinkIncremental(std::vector<std::string>& args,
int type, bool verbose)
{
// This follows the steps listed here:
// http://blogs.msdn.com/zakramer/archive/2006/05/22/603558.aspx
// 1. Compiler compiles the application and generates the *.obj files.
// 2. An empty manifest file is generated if this is a clean build and if
// not the previous one is reused.
// 3. The resource compiler (rc.exe) compiles the *.manifest file to a
// *.res file.
// 4. Linker generates the binary (EXE or DLL) with the /incremental
// switch and embeds the dummy manifest file. The linker also generates
// the real manifest file based on the binaries that your binary depends
// on.
// 5. The manifest tool (mt.exe) is then used to generate the final
// manifest.
// If the final manifest is changed, then 6 and 7 are run, if not
// they are skipped, and it is done.
// 6. The resource compiler is invoked one more time.
// 7. Finally, the Linker does another incremental link, but since the
// only thing that has changed is the *.res file that contains the
// manifest it is a short link.
std::vector<cmStdString> linkCommand;
std::string targetName;
if(cmcmd::ParseVisualStudioLinkCommand(args, linkCommand, targetName) == -1)
{
return -1;
}
std::string manifestArg = "/MANIFESTFILE:";
std::vector<cmStdString> rcCommand;
rcCommand.push_back(cmSystemTools::FindProgram("rc.exe"));
std::vector<cmStdString> mtCommand;
mtCommand.push_back(cmSystemTools::FindProgram("mt.exe"));
std::string tempManifest;
tempManifest = targetName;
tempManifest += ".intermediate.manifest";
std::string resourceInputFile = targetName;
resourceInputFile += ".resource.txt";
if(verbose)
{
std::cout << "Create " << resourceInputFile.c_str() << "\n";
}
// Create input file for rc command
cmsys::ofstream fout(resourceInputFile.c_str());
if(!fout)
{
return -1;
}
std::string manifestFile = targetName;
manifestFile += ".embed.manifest";
std::string fullPath= cmSystemTools::CollapseFullPath(manifestFile.c_str());
fout << type << " /* CREATEPROCESS_MANIFEST_RESOURCE_ID "
"*/ 24 /* RT_MANIFEST */ " << "\"" << fullPath.c_str() << "\"";
fout.close();
manifestArg += tempManifest;
// add the manifest arg to the linkCommand
linkCommand.push_back("/MANIFEST");
linkCommand.push_back(manifestArg);
// if manifestFile is not yet created, create an
// empty one
if(!cmSystemTools::FileExists(manifestFile.c_str()))
{
if(verbose)
{
std::cout << "Create empty: " << manifestFile.c_str() << "\n";
}
cmsys::ofstream foutTmp(manifestFile.c_str());
}
std::string resourceFile = manifestFile;
resourceFile += ".res";
// add the resource file to the end of the link command
linkCommand.push_back(resourceFile);
std::string outputOpt = "/fo";
outputOpt += resourceFile;
rcCommand.push_back(outputOpt);
rcCommand.push_back(resourceInputFile);
// Run rc command to create resource
if(!cmcmd::RunCommand("RC Pass 1", rcCommand, verbose))
{
return -1;
}
// Now run the link command to link and create manifest
if(!cmcmd::RunCommand("LINK Pass 1", linkCommand, verbose))
{
return -1;
}
// create mt command
std::string outArg("/out:");
outArg+= manifestFile;
mtCommand.push_back("/nologo");
mtCommand.push_back(outArg);
mtCommand.push_back("/notify_update");
mtCommand.push_back("/manifest");
mtCommand.push_back(tempManifest);
// now run mt.exe to create the final manifest file
int mtRet =0;
cmcmd::RunCommand("MT", mtCommand, verbose, &mtRet);
// if mt returns 0, then the manifest was not changed and
// we do not need to do another link step
if(mtRet == 0)
{
return 0;
}
// check for magic mt return value if mt returns the magic number
// 1090650113 then it means that it updated the manifest file and we need
// to do the final link. If mt has any value other than 0 or 1090650113
// then there was some problem with the command itself and there was an
// error so return the error code back out of cmake so make can report it.
// (when hosted on a posix system the value is 187)
if(mtRet != 1090650113 && mtRet != 187)
{
return mtRet;
}
// update the resource file with the new manifest from the mt command.
if(!cmcmd::RunCommand("RC Pass 2", rcCommand, verbose))
{
return -1;
}
// Run the final incremental link that will put the new manifest resource
// into the file incrementally.
if(!cmcmd::RunCommand("FINAL LINK", linkCommand, verbose))
{
return -1;
}
return 0;
}
int cmcmd::VisualStudioLinkNonIncremental(std::vector<std::string>& args,
int type,
bool hasManifest,
bool verbose)
{
std::vector<cmStdString> linkCommand;
std::string targetName;
if(cmcmd::ParseVisualStudioLinkCommand(args, linkCommand, targetName) == -1)
{
return -1;
}
// Run the link command as given
if (hasManifest)
{
linkCommand.push_back("/MANIFEST");
}
if(!cmcmd::RunCommand("LINK", linkCommand, verbose))
{
return -1;
}
if(!hasManifest)
{
return 0;
}
std::vector<cmStdString> mtCommand;
mtCommand.push_back(cmSystemTools::FindProgram("mt.exe"));
mtCommand.push_back("/nologo");
mtCommand.push_back("/manifest");
std::string manifestFile = targetName;
manifestFile += ".manifest";
mtCommand.push_back(manifestFile);
std::string outresource = "/outputresource:";
outresource += targetName;
outresource += ";#";
if(type == 1)
{
outresource += "1";
}
else if(type == 2)
{
outresource += "2";
}
mtCommand.push_back(outresource);
// Now use the mt tool to embed the manifest into the exe or dll
if(!cmcmd::RunCommand("MT", mtCommand, verbose))
{
return -1;
}
return 0;
}
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