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CMake/Source/cmcmd.cxx
Brad King 7abd574798 cmake: Add '-E env' command-line tool 
Extend the cmake command-line interface to support

 cmake -E env [--unset=NAME]... [NAME=VALUE]... COMMAND [ARG]...

This will be useful to run processes with modified environments
without using a shell or a full "cmake -P" script to wrap it.

Extend the RunCMake.CommandLine test to cover success and failure cases.

Inspired-by: Jonathan Bohren <jbo@jhu.edu>
2014-06-23 16:47:49 -04:00

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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"
<< " env [--unset=NAME]... [NAME=VALUE]... COMMAND [ARG]...\n"
<< " - run command in a modified environment\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"
<< " sleep <number>... - sleep for given number of seconds\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]
<< "\" to \"" << args[3] << "\".\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] << "\" to \"" << args[3]
<< "\".\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] << "\" to \"" << args[3]
<< "\".\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] << "\" to \"" << args[3]
<< "\": " << 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] << "\" to \"" << args[3]
<< "\" 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;
}
else if (args[1] == "env" )
{
std::vector<std::string>::const_iterator ai = args.begin() + 2;
std::vector<std::string>::const_iterator ae = args.end();
for(; ai != ae; ++ai)
{
std::string const& a = *ai;
if(cmHasLiteralPrefix(a, "--unset="))
{
// Unset environment variable.
cmSystemTools::UnPutEnv(a.c_str() + 8);
}
else if(!a.empty() && a[0] == '-')
{
// Environment variable and command names cannot start in '-',
// so this must be an unknown option.
std::cerr << "cmake -E env: unknown option '" << a << "'"
<< std::endl;
return 1;
}
else if(a.find("=") != a.npos)
{
// Set environment variable.
cmSystemTools::PutEnv(a.c_str());
}
else
{
// This is the beginning of the command.
break;
}
}
if(ai == ae)
{
std::cerr << "cmake -E env: no command given" << std::endl;
return 1;
}
// Execute command from remaining arguments.
std::vector<std::string> cmd(ai, ae);
int retval;
if(cmSystemTools::RunSingleCommand(
cmd, 0, &retval, NULL, cmSystemTools::OUTPUT_PASSTHROUGH))
{
return retval;
}
return 1;
}
#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 << 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]
<< "\".\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]
<< "\".\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;
}
// Sleep command
else if (args[1] == "sleep" && args.size() > 2)
{
double total = 0;
for(size_t i = 2; i < args.size(); ++i)
{
double num = 0.0;
char unit;
char extra;
int n = sscanf(args[i].c_str(), "%lg%c%c", &num, &unit, &extra);
if((n == 1 || (n == 2 && unit == 's')) && num >= 0)
{
total += num;
}
else
{
std::cerr << "Unknown sleep time format \"" << args[i] << "\".\n";
return 1;
}
}
if(total > 0)
{
cmSystemTools::Delay(static_cast<unsigned int>(total*1000));
}
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);
cm.SetStartDirectory(startDir);
cm.SetHomeOutputDirectory(homeOutDir);
cm.SetStartOutputDirectory(startOutDir);
if(cmGlobalGenerator* ggd = cm.CreateGlobalGenerator(gen))
{
cm.SetGlobalGenerator(ggd);
cmsys::auto_ptr<cmLocalGenerator> lgd(ggd->CreateLocalGenerator());
lgd->GetMakefile()->SetStartDirectory(startDir);
lgd->GetMakefile()->SetStartOutputDirectory(startOutDir);
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;
std::string const& config = args[3];
bool autogenSuccess = autogen.Run(args[2], 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<std::string> 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<std::string>& 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<std::string>& command,
bool verbose,
int* retCodeOut)
{
if(verbose)
{
std::cout << comment << ":\n";
for(std::vector<std::string>::iterator i = command.begin();
i != command.end(); ++i)
{
std::cout << *i << " ";
}
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<std::string> linkCommand;
std::string targetName;
if(cmcmd::ParseVisualStudioLinkCommand(args, linkCommand, targetName) == -1)
{
return -1;
}
std::string manifestArg = "/MANIFESTFILE:";
std::vector<std::string> rcCommand;
rcCommand.push_back(cmSystemTools::FindProgram("rc.exe"));
std::vector<std::string> 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 << "\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 << "\"";
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 << "\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<std::string> 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<std::string> 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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