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Add two cmake commands -E echo for echoing strings and -E comspec for workaround of bug of windows 9x; add another implementation of run command on windows which should work...

This commit is contained in:
Andy Cedilnik 2002-09-27 17:28:15 -04:00
parent c310600df5
commit 780a9bbda7
3 changed files with 313 additions and 6 deletions
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274
Source/cmSystemTools.cxx
View File

@ -74,6 +74,19 @@ bool cmSystemTools::s_DisableRunCommandOutput = false;
bool cmSystemTools::s_ErrorOccured = false;
bool cmSystemTools::s_DisableMessages = false;
std::string cmSystemTools::s_Windows9xComspecSubstitute = "command.com";
void cmSystemTools::SetWindows9xComspecSubstitute(const char* str)
{
if ( str )
{
cmSystemTools::s_Windows9xComspecSubstitute = str;
}
}
const char* cmSystemTools::GetWindows9xComspecSubstitute()
{
return cmSystemTools::s_Windows9xComspecSubstitute.c_str();
}
void (*cmSystemTools::s_ErrorCallback)(const char*, const char*, bool&, void*);
void* cmSystemTools::s_ErrorCallbackClientData = 0;
@ -1004,7 +1017,7 @@ void cmSystemTools::Message(const char* m1, const char *title)
}
else
{
std::cerr << m1 << std::endl;
std::cerr << m1 << std::endl << std::flush;
}
}
@ -1249,6 +1262,250 @@ bool cmSystemTools::RunCommand(const char* command,
}
#if defined(WIN32) && !defined(__CYGWIN__)
// Code from a Borland web site with the following explaination :
/* In this article, I will explain how to spawn a console application
* and redirect its standard input/output using anonymous pipes. An
* anonymous pipe is a pipe that goes only in one direction (read
* pipe, write pipe, etc.). Maybe you are asking, "why would I ever
* need to do this sort of thing?" One example would be a Windows
* telnet server, where you spawn a shell and listen on a port and
* send and receive data between the shell and the socket
* client. (Windows does not really have a built-in remote
* shell). First, we should talk about pipes. A pipe in Windows is
* simply a method of communication, often between process. The SDK
* defines a pipe as "a communication conduit with two ends;
a process
* with a handle to one end can communicate with a process having a
* handle to the other end." In our case, we are using "anonymous"
* pipes, one-way pipes that "transfer data between a parent process
* and a child process or between two child processes of the same
* parent process." It's easiest to imagine a pipe as its namesake. An
* actual pipe running between processes that can carry data. We are
* using anonymous pipes because the console app we are spawning is a
* child process. We use the CreatePipe function which will create an
* anonymous pipe and return a read handle and a write handle. We will
* create two pipes, on for stdin and one for stdout. We will then
* monitor the read end of the stdout pipe to check for display on our
* child process. Every time there is something availabe for reading,
* we will display it in our app. Consequently, we check for input in
* our app and send it off to the write end of the stdin pipe. */
inline bool IsWinNT()
//check if we're running NT
{
OSVERSIONINFO osv;
osv.dwOSVersionInfoSize = sizeof(osv);
GetVersionEx(&osv);
return (osv.dwPlatformId == VER_PLATFORM_WIN32_NT);
}
void DisplayErrorMessage()
{
LPVOID lpMsgBuf;
FormatMessage(
FORMAT_MESSAGE_ALLOCATE_BUFFER |
FORMAT_MESSAGE_FROM_SYSTEM |
FORMAT_MESSAGE_IGNORE_INSERTS,
NULL,
GetLastError(),
MAKELANGID(LANG_NEUTRAL, SUBLANG_DEFAULT), // Default language
(LPTSTR) &lpMsgBuf,
0,
NULL
);
// Process any inserts in lpMsgBuf.
// ...
// Display the string.
MessageBox( NULL, (LPCTSTR)lpMsgBuf, "Error", MB_OK | MB_ICONINFORMATION );
// Free the buffer.
LocalFree( lpMsgBuf );
}
//---------------------------------------------------------------------------
bool WindowsRunCommand(const char* command, const char* dir,
std::string& output, int& retVal, bool verbose)
{
//verbose = true;
std::cerr << std::endl
<< "WindowsRunCommand(" << command << ")" << std::endl
<< std::flush;
const int BUFFER_SIZE = 4096;
char buf[BUFFER_SIZE];
//i/o buffer
STARTUPINFO si;
SECURITY_ATTRIBUTES sa;
SECURITY_DESCRIPTOR sd;
//security information for pipes
PROCESS_INFORMATION pi;
HANDLE newstdin,newstdout,read_stdout,write_stdin;
//pipe handles
if (IsWinNT())
//initialize security descriptor (Windows NT)
{
InitializeSecurityDescriptor(&sd,SECURITY_DESCRIPTOR_REVISION);
SetSecurityDescriptorDacl(&sd, true, NULL, false);
sa.lpSecurityDescriptor = &sd;
}
else sa.lpSecurityDescriptor = NULL;
sa.nLength = sizeof(SECURITY_ATTRIBUTES);
sa.bInheritHandle = true;
//allow inheritable handles
if (!CreatePipe(&newstdin,&write_stdin,&sa,0))
//create stdin pipe
{
std::cerr << "CreatePipe" << std::endl;
return false;
}
if (!CreatePipe(&read_stdout,&newstdout,&sa,0))
//create stdout pipe
{
std::cerr << "CreatePipe" << std::endl;
CloseHandle(newstdin);
CloseHandle(write_stdin);
return false;
}
GetStartupInfo(&si);
//set startupinfo for the spawned process
/* The dwFlags member tells CreateProcess how to make the
* process. STARTF_USESTDHANDLES validates the hStd*
* members. STARTF_USESHOWWINDOW validates the wShowWindow
* member. */
si.dwFlags = STARTF_USESTDHANDLES|STARTF_USESHOWWINDOW;
si.wShowWindow = SW_HIDE;
si.hStdOutput = newstdout;
si.hStdError = newstdout;
//set the new handles for the child process si.hStdInput = newstdin;
char* commandAndArgs = strcpy(new char[strlen(command)+1], command);
if (!CreateProcess(NULL,commandAndArgs,NULL,NULL,TRUE,CREATE_NEW_CONSOLE,
NULL,dir,&si,&pi))
{
std::cerr << "CreateProcess failed " << commandAndArgs << std::endl;
CloseHandle(newstdin);
CloseHandle(newstdout);
CloseHandle(read_stdout);
CloseHandle(write_stdin);
delete [] commandAndArgs;
return false;
}
delete [] commandAndArgs;
unsigned long exit=0;
//process exit code unsigned
unsigned long bread;
//bytes read unsigned
unsigned long avail;
//bytes available
memset(buf, 0, sizeof(buf));
for(;;)
//main program loop
{
Sleep(10);
//std::cout << "Check for process..." << std::endl;
GetExitCodeProcess(pi.hProcess,&exit);
//while the process is running
if (exit != STILL_ACTIVE) break;
//check to see if there is any data to read from stdout
//std::cout << "Peek for data..." << std::endl;
PeekNamedPipe(read_stdout,buf,1023,&bread,&avail,NULL);
if (bread != 0)
{
memset(buf, 0, sizeof(buf));
if (avail > 1023)
{
while (bread >= 1023)
{
//std::cout << "Read data..." << std::endl;
ReadFile(read_stdout,buf,1023,&bread,NULL);
//read the stdout pipe
printf("%s",buf);
memset(buf, 0, sizeof(buf));
}
}
else
{
ReadFile(read_stdout,buf,1023,&bread,NULL);
output += buf;
output += "\n";
if(verbose)
{
std::cerr << verbose << " [{" << buf << "}]"
<< std::endl << std::flush;
}
}
}
}
CloseHandle(pi.hThread);
CloseHandle(pi.hProcess);
CloseHandle(newstdin);
//clean stuff up
CloseHandle(newstdout);
CloseHandle(read_stdout);
CloseHandle(write_stdin);
retVal = exit;
std::cerr << std::endl << "End of WindowsRunCommand(" << command << ")" << std::endl << std::flush;
return true;
}
#include "cmWin32ProcessExecution.h"
// use this for shell commands like echo and dir
bool RunCommandViaWin32(const char* command,
const char* dir,
std::string& output,
int& retVal,
bool verbose)
{
if ( ! command )
{
cmSystemTools::Error("No command specified");
return false;
}
//std::cout << "Command: " << command << std::endl;
if ( dir )
{
//std::cout << "Dir: " << dir << std::endl;
}
cmWin32ProcessExecution resProc;
if ( cmSystemTools::GetWindows9xComspecSubstitute() )
{
resProc.SetConsoleSpawn(cmSystemTools::GetWindows9xComspecSubstitute() );
}
if ( !resProc.StartProcess(command, dir, verbose) )
{
std::cout << "Problem starting command" << std::endl;
return false;
}
resProc.Wait(INFINITE);
output = resProc.GetOutput();
retVal = resProc.GetExitValue();
return true;
}
// use this for shell commands like echo and dir
bool RunCommandViaSystem(const char* command,
const char* dir,
@ -1256,6 +1513,8 @@ bool RunCommandViaSystem(const char* command,
int& retVal,
bool verbose)
{
std::cout << "@@ " << command << std::endl;
const int BUFFER_SIZE = 4096;
char buffer[BUFFER_SIZE];
std::string commandInDir;
@ -1366,8 +1625,13 @@ bool cmSystemTools::RunCommand(const char* command,
}
shortCmd += " ";
shortCmd += args;
return RunCommandViaSystem(shortCmd.c_str(), dir,
output, retVal, verbose);
//return RunCommandViaSystem(shortCmd.c_str(), dir,
// output, retVal, verbose);
//return WindowsRunCommand(shortCmd.c_str(), dir,
//output, retVal, verbose);
return RunCommandViaWin32(shortCmd.c_str(), dir,
output, retVal, verbose);
}
else
{
@ -1377,7 +1641,9 @@ bool cmSystemTools::RunCommand(const char* command,
}
}
// if there is only one set of quotes or no quotes then just run the command
return RunCommandViaSystem(command, dir, output, retVal, verbose);
//return RunCommandViaSystem(command, dir, output, retVal, verbose);
//return WindowsRunCommand(command, dir, output, retVal, verbose);
return RunCommandViaWin32(command, dir, output, retVal, verbose);
#else
// if only popen worked on windows.....
std::string commandInDir;

10
Source/cmSystemTools.h
View File

@ -311,6 +311,14 @@ public:
*/
static e_FileFormat GetFileFormat(const char* ext);
/**
* On Windows 9x we need a comspec (command.com) substitute to run
* programs correctly. This string has to be constant available
* through the running of program. This method does not create a copy.
*/
static void SetWindows9xComspecSubstitute(const char*);
static const char* GetWindows9xComspecSubstitute();
protected:
// these two functions can be called from ConvertToOutputPath
/**
@ -333,6 +341,8 @@ private:
static bool s_DisableRunCommandOutput;
static ErrorCallback s_ErrorCallback;
static void* s_ErrorCallbackClientData;
static std::string s_Windows9xComspecSubstitute;
};

35
Source/cmake.cxx
View File

@ -28,6 +28,7 @@
#include "cmGlobalVisualStudio7Generator.h"
#include "cmGlobalBorlandMakefileGenerator.h"
#include "cmGlobalNMakeMakefileGenerator.h"
#include "cmWin32ProcessExecution.h"
#else
#include "cmGlobalUnixMakefileGenerator.h"
#endif
@ -430,6 +431,11 @@ int cmake::AddCMakePaths(const char *arg0)
this->m_CacheManager->AddCacheEntry
("CMAKE_ROOT", cMakeRoot.c_str(),
"Path to CMake installation.", cmCacheManager::INTERNAL);
#ifdef _WIN32
cmSystemTools::SetWindows9xComspecSubstitute(
(cMakeSelf + " -E comspec").c_str());
#endif
return 1;
}
@ -448,12 +454,14 @@ void CMakeCommandUsage(const char* program)
<< "Available commands: \n"
<< " chdir dir cmd [args]... - run command in a given directory\n"
<< " copy file destination - copy file to destination (either file or directory)\n"
<< " echo [string]... - displays arguments as text\n"
<< " remove file1 file2 ... - remove the file(s)\n"
<< " time command [args] ... - run command and return elapsed time\n";
#if defined(_WIN32) && !defined(__CYGWIN__)
errorStream
<< " write_regv key value - write registry value\n"
<< " delete_regv key - delete registry value\n";
<< " delete_regv key - delete registry value\n"
<< " comspec - on windows 9x use this for RunCommand\n";
#endif
cmSystemTools::Error(errorStream.str().c_str());
@ -470,6 +478,18 @@ int cmake::CMakeCommand(std::vector<std::string>& args)
return cmSystemTools::GetErrorOccuredFlag();
}
// Echo string
else if (args[1] == "echo" )
{
int cc;
for ( cc = 2; cc < args.size(); cc ++ )
{
std::cout << args[cc] << " ";
}
std::cout << std::endl;
return 0;
}
// Remove file
else if (args[1] == "remove" && args.size() > 2)
{
@ -522,7 +542,7 @@ int cmake::CMakeCommand(std::vector<std::string>& args)
}
// Clock command
else if (args[1] == "chdir" && args.size() > 2)
else if (args[1] == "chdir" && args.size() == 4)
{
std::string directory = args[2];
std::string command = args[3];
@ -557,6 +577,17 @@ int cmake::CMakeCommand(std::vector<std::string>& args)
{
return cmSystemTools::DeleteRegistryValue(args[2].c_str()) ? 0 : 1;
}
// Remove file
else if (args[1] == "comspec" && args.size() > 2)
{
int cc;
std::string command = args[2];
for ( cc = 3; cc < args.size(); cc ++ )
{
command += " " + args[cc];
}
return cmWin32ProcessExecution::Windows9xHack(command.c_str());
}
#endif
}