ENH: Using kwsys Process implementation to implement RunCommand.
This commit is contained in:
Brad King
parent
125b795637
commit
ccc629702c
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@ -22,6 +22,7 @@
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#include <cmsys/RegularExpression.hxx>
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#include <cmsys/Directory.hxx>
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#include <cmsys/Process.h>
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// support for realpath call
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#ifndef _WIN32
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@ -301,283 +302,131 @@ bool cmSystemTools::RunCommand(const char* command,
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dir, verbose, timeout);
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}
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#if defined(WIN32) && !defined(__CYGWIN__)
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#include "cmWin32ProcessExecution.h"
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// use this for shell commands like echo and dir
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bool RunCommandViaWin32(const char* command,
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const char* dir,
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std::string& output,
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int& retVal,
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bool verbose,
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int timeout)
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{
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#if defined(__BORLANDC__)
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return cmWin32ProcessExecution::BorlandRunCommand(command, dir, output,
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retVal,
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verbose, timeout,
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cmSystemTools::GetRunCommandHideConsole());
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#else // Visual studio
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::SetLastError(ERROR_SUCCESS);
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if ( ! command )
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{
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cmSystemTools::Error("No command specified");
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return false;
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}
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cmWin32ProcessExecution resProc;
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if(cmSystemTools::GetRunCommandHideConsole())
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{
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resProc.SetHideWindows(true);
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}
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if ( cmSystemTools::GetWindows9xComspecSubstitute() )
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{
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resProc.SetConsoleSpawn(cmSystemTools::GetWindows9xComspecSubstitute() );
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}
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if ( !resProc.StartProcess(command, dir, verbose) )
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{
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return false;
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}
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resProc.Wait(timeout);
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output = resProc.GetOutput();
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retVal = resProc.GetExitValue();
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return true;
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#endif
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}
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// use this for shell commands like echo and dir
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bool RunCommandViaSystem(const char* command,
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const char* dir,
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std::string& output,
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int& retVal,
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bool verbose)
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{
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std::cout << "@@ " << command << std::endl;
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std::string commandInDir;
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if(dir)
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{
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commandInDir = "cd ";
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commandInDir += cmSystemTools::ConvertToOutputPath(dir);
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commandInDir += " && ";
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commandInDir += command;
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}
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else
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{
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commandInDir = command;
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}
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command = commandInDir.c_str();
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std::string commandToFile = command;
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commandToFile += " > ";
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std::string tempFile;
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tempFile += _tempnam(0, "cmake");
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commandToFile += tempFile;
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retVal = system(commandToFile.c_str());
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std::ifstream fin(tempFile.c_str());
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if(!fin)
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{
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if(verbose)
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{
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std::string errormsg = "RunCommand produced no output: command: \"";
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errormsg += command;
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errormsg += "\"";
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errormsg += "\nOutput file: ";
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errormsg += tempFile;
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cmSystemTools::Error(errormsg.c_str());
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}
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fin.close();
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cmSystemTools::RemoveFile(tempFile.c_str());
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return false;
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}
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bool multiLine = false;
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std::string line;
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while(cmSystemTools::GetLineFromStream(fin, line))
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{
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output += line;
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if(multiLine)
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{
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output += "\n";
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}
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multiLine = true;
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}
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fin.close();
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cmSystemTools::RemoveFile(tempFile.c_str());
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return true;
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}
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#else // We have popen
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bool RunCommandViaPopen(const char* command,
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const char* dir,
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std::string& output,
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int& retVal,
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bool verbose,
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int /*timeout*/)
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{
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// if only popen worked on windows.....
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std::string commandInDir;
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if(dir)
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{
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commandInDir = "cd \"";
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commandInDir += dir;
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commandInDir += "\" && ";
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commandInDir += command;
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}
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else
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{
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commandInDir = command;
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}
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commandInDir += " 2>&1";
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command = commandInDir.c_str();
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const int BUFFER_SIZE = 4096;
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char buffer[BUFFER_SIZE];
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if(verbose)
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{
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std::cout << "running " << command << std::endl;
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}
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fflush(stdout);
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fflush(stderr);
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FILE* cpipe = popen(command, "r");
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if(!cpipe)
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{
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return false;
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}
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fgets(buffer, BUFFER_SIZE, cpipe);
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while(!feof(cpipe))
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{
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if(verbose)
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{
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std::cout << buffer << std::flush;
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}
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output += buffer;
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fgets(buffer, BUFFER_SIZE, cpipe);
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}
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retVal = pclose(cpipe);
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if (WIFEXITED(retVal))
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{
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retVal = WEXITSTATUS(retVal);
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return true;
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}
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if (WIFSIGNALED(retVal))
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{
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retVal = WTERMSIG(retVal);
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cmOStringStream error;
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error << "\nProcess terminated due to ";
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switch (retVal)
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{
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#ifdef SIGKILL
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case SIGKILL:
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error << "SIGKILL";
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break;
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#endif
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#ifdef SIGFPE
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case SIGFPE:
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error << "SIGFPE";
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break;
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#endif
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#ifdef SIGBUS
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case SIGBUS:
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error << "SIGBUS";
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break;
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#endif
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#ifdef SIGSEGV
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case SIGSEGV:
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error << "SIGSEGV";
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break;
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#endif
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default:
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error << "signal " << retVal;
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break;
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}
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output += error.str();
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}
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return false;
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}
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#endif // endif WIN32 not CYGWIN
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// run a command unix uses popen (easy)
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// windows uses system and ShortPath
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bool cmSystemTools::RunCommand(const char* command,
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std::string& output,
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int &retVal,
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const char* dir,
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bool verbose,
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int timeout)
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int)
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{
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if(s_DisableRunCommandOutput)
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{
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verbose = false;
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}
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#if defined(WIN32) && !defined(__CYGWIN__)
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// if the command does not start with a quote, then
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// try to find the program, and if the program can not be
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// found use system to run the command as it must be a built in
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// shell command like echo or dir
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int count = 0;
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if(command[0] == '\"')
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std::vector<std::string> args;
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std::string arg;
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// Split the command into an argv array.
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for(const char* c = command; *c;)
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{
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// count the number of quotes
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for(const char* s = command; *s != 0; ++s)
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// Skip over whitespace.
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while(*c == ' ' || *c == '\t')
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{
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if(*s == '\"')
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{
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count++;
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if(count > 2)
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{
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break;
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}
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}
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++c;
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}
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// if there are more than two double quotes use
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// GetShortPathName, the cmd.exe program in windows which
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// is used by system fails to execute if there are more than
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// one set of quotes in the arguments
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if(count > 2)
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arg = "";
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if(*c == '"')
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{
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cmsys::RegularExpression quoted("^\"([^\"]*)\"[ \t](.*)");
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if(quoted.find(command))
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// Parse a quoted argument.
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++c;
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while(*c && *c != '"')
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{
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std::string shortCmd;
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std::string cmd = quoted.match(1);
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std::string args = quoted.match(2);
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if(! cmSystemTools::FileExists(cmd.c_str()) )
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if(*c == '\\')
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{
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shortCmd = cmd;
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++c;
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if(*c)
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{
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arg.append(1, *c);
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++c;
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}
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}
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else if(!cmSystemTools::GetShortPath(cmd.c_str(), shortCmd))
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else
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{
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cmSystemTools::Error("GetShortPath failed for " , cmd.c_str());
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return false;
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arg.append(1, *c);
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++c;
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}
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shortCmd += " ";
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shortCmd += args;
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//return RunCommandViaSystem(shortCmd.c_str(), dir,
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// output, retVal, verbose);
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//return WindowsRunCommand(shortCmd.c_str(), dir,
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//output, retVal, verbose);
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return RunCommandViaWin32(shortCmd.c_str(), dir,
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output, retVal, verbose, timeout);
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}
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else
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if(*c)
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{
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cmSystemTools::Error("Could not parse command line with quotes ",
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command);
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++c;
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}
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args.push_back(arg);
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}
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else if(*c)
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{
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// Parse an unquoted argument.
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while(*c && *c != ' ' && *c != '\t')
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{
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arg.append(1, *c);
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++c;
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}
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args.push_back(arg);
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}
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}
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// if there is only one set of quotes or no quotes then just run the command
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//return RunCommandViaSystem(command, dir, output, retVal, verbose);
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//return WindowsRunCommand(command, dir, output, retVal, verbose);
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return ::RunCommandViaWin32(command, dir, output, retVal, verbose, timeout);
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#else
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return ::RunCommandViaPopen(command, dir, output, retVal, verbose, timeout);
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#endif
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std::vector<const char*> argv;
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for(std::vector<std::string>::const_iterator a = args.begin();
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a != args.end(); ++a)
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{
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argv.push_back(a->c_str());
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}
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argv.push_back(0);
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if(argv.size() < 2)
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{
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return false;
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}
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// Change to specified working directory.
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std::string cwd = cmSystemTools::GetCurrentWorkingDirectory();
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if(dir)
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{
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if(cmSystemTools::ChangeDirectory(dir) < 0)
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{
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return false;
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}
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}
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output = "";
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cmsysProcess* cp = cmsysProcess_New();
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cmsysProcess_SetCommand(cp, &*argv.begin());
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cmsysProcess_Execute(cp);
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char* data;
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int length;
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while(cmsysProcess_WaitForData(cp, (cmsysProcess_Pipe_STDOUT |
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cmsysProcess_Pipe_STDERR),
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&data, &length, 0))
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{
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output.append(data, length);
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if(verbose)
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{
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std::cout.write(data, length);
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}
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}
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cmsysProcess_WaitForExit(cp, 0);
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bool result = true;
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if(cmsysProcess_GetState(cp) == cmsysProcess_State_Exited)
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{
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retVal = cmsysProcess_GetExitValue(cp);
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}
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else
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{
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result = false;
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}
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cmsysProcess_Delete(cp);
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// Restore old working directory.
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if(dir)
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{
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cmSystemTools::ChangeDirectory(cwd.c_str());
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}
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return result;
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}
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bool cmSystemTools::DoesFileExistWithExtensions(
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