CMake/Source/cmSystemTools.cxx

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/*=========================================================================
Program: CMake - Cross-Platform Makefile Generator
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Module: $RCSfile$
Language: C++
Date: $Date$
Version: $Revision$
Copyright (c) 2002 Kitware, Inc., Insight Consortium. All rights reserved.
See Copyright.txt or http://www.cmake.org/HTML/Copyright.html for details.
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This software is distributed WITHOUT ANY WARRANTY; without even
the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR
PURPOSE. See the above copyright notices for more information.
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=========================================================================*/
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#include "cmSystemTools.h"
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#include <stdio.h>
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#include <ctype.h>
#include <errno.h>
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#include <time.h>
#include <cmsys/RegularExpression.hxx>
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#include <cmsys/Directory.hxx>
#include <cmsys/Process.h>
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// support for realpath call
#ifndef _WIN32
#include <limits.h>
#include <stdlib.h>
#include <sys/param.h>
#include <sys/wait.h>
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#endif
#if defined(_WIN32) && (defined(_MSC_VER) || defined(__BORLANDC__))
#include <string.h>
#include <windows.h>
#include <direct.h>
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#define _unlink unlink
#else
#include <sys/types.h>
#include <fcntl.h>
#include <unistd.h>
#endif
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bool cmSystemTools::s_RunCommandHideConsole = false;
bool cmSystemTools::s_DisableRunCommandOutput = false;
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bool cmSystemTools::s_ErrorOccured = false;
bool cmSystemTools::s_FatalErrorOccured = false;
bool cmSystemTools::s_DisableMessages = false;
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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;
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// replace replace with with as many times as it shows up in source.
// write the result into source.
#if defined(_WIN32) && !defined(__CYGWIN__)
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void cmSystemTools::ExpandRegistryValues(std::string& source)
{
// Regular expression to match anything inside [...] that begins in HKEY.
// Note that there is a special rule for regular expressions to match a
// close square-bracket inside a list delimited by square brackets.
// The "[^]]" part of this expression will match any character except
// a close square-bracket. The ']' character must be the first in the
// list of characters inside the [^...] block of the expression.
cmsys::RegularExpression regEntry("\\[(HKEY[^]]*)\\]");
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// check for black line or comment
while (regEntry.find(source))
{
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// the arguments are the second match
std::string key = regEntry.match(1);
std::string val;
if (ReadRegistryValue(key.c_str(), val))
{
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std::string reg = "[";
reg += key + "]";
cmSystemTools::ReplaceString(source, reg.c_str(), val.c_str());
}
else
{
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std::string reg = "[";
reg += key + "]";
cmSystemTools::ReplaceString(source, reg.c_str(), "/registry");
}
}
}
#else
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void cmSystemTools::ExpandRegistryValues(std::string&)
{
}
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#endif
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std::string cmSystemTools::EscapeQuotes(const char* str)
{
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std::string result = "";
for(const char* ch = str; *ch != '\0'; ++ch)
{
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if(*ch == '"')
{
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result += '\\';
}
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result += *ch;
}
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return result;
}
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std::string cmSystemTools::EscapeSpaces(const char* str)
{
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#if defined(_WIN32) && !defined(__CYGWIN__)
std::string result;
// if there are spaces
std::string temp = str;
if (temp.find(" ") != std::string::npos &&
temp.find("\"")==std::string::npos)
{
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result = "\"";
result += str;
result += "\"";
return result;
}
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return str;
#else
std::string result = "";
for(const char* ch = str; *ch != '\0'; ++ch)
{
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if(*ch == ' ')
{
result += '\\';
}
result += *ch;
}
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return result;
#endif
}
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std::string cmSystemTools::RemoveEscapes(const char* s)
{
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std::string result = "";
for(const char* ch = s; *ch; ++ch)
{
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if(*ch == '\\' && *(ch+1) != ';')
{
++ch;
switch (*ch)
{
case '\\': result.insert(result.end(), '\\'); break;
case '"': result.insert(result.end(), '"'); break;
case ' ': result.insert(result.end(), ' '); break;
case 't': result.insert(result.end(), '\t'); break;
case 'n': result.insert(result.end(), '\n'); break;
case 'r': result.insert(result.end(), '\r'); break;
case '#': result.insert(result.end(), '#'); break;
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case '(': result.insert(result.end(), '('); break;
case ')': result.insert(result.end(), ')'); break;
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case '0': result.insert(result.end(), '\0'); break;
case '\0':
{
cmSystemTools::Error("Trailing backslash in argument:\n", s);
return result;
}
default:
{
std::string chStr(1, *ch);
cmSystemTools::Error("Invalid escape sequence \\", chStr.c_str(),
"\nin argument ", s);
}
}
}
else
{
result.insert(result.end(), *ch);
}
}
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return result;
}
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void cmSystemTools::Error(const char* m1, const char* m2,
const char* m3, const char* m4)
{
std::string message = "CMake Error: ";
if(m1)
{
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message += m1;
}
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if(m2)
{
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message += m2;
}
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if(m3)
{
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message += m3;
}
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if(m4)
{
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message += m4;
}
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cmSystemTools::s_ErrorOccured = true;
cmSystemTools::Message(message.c_str(),"Error");
}
void cmSystemTools::SetErrorCallback(ErrorCallback f, void* clientData)
{
s_ErrorCallback = f;
s_ErrorCallbackClientData = clientData;
}
void cmSystemTools::Message(const char* m1, const char *title)
{
if(s_DisableMessages)
{
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return;
}
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if(s_ErrorCallback)
{
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(*s_ErrorCallback)(m1, title, s_DisableMessages, s_ErrorCallbackClientData);
return;
}
else
{
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std::cerr << m1 << std::endl << std::flush;
}
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}
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void cmSystemTools::ReportLastSystemError(const char* msg)
{
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std::string m = msg;
m += ": System Error: ";
m += Superclass::GetLastSystemError();
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cmSystemTools::Error(m.c_str());
}
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bool cmSystemTools::IsOn(const char* val)
{
if (!val)
{
return false;
}
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std::basic_string<char> v = val;
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for(std::basic_string<char>::iterator c = v.begin();
c != v.end(); c++)
{
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*c = toupper(*c);
}
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return (v == "ON" || v == "1" || v == "YES" || v == "TRUE" || v == "Y");
}
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bool cmSystemTools::IsNOTFOUND(const char* val)
{
cmsys::RegularExpression reg("-NOTFOUND$");
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if(reg.find(val))
{
return true;
}
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return std::string("NOTFOUND") == val;
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}
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bool cmSystemTools::IsOff(const char* val)
{
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if (!val || strlen(val) == 0)
{
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return true;
}
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std::basic_string<char> v = val;
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for(std::basic_string<char>::iterator c = v.begin();
c != v.end(); c++)
{
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*c = toupper(*c);
}
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return (v == "OFF" || v == "0" || v == "NO" || v == "FALSE" ||
v == "N" || cmSystemTools::IsNOTFOUND(v.c_str()) || v == "IGNORE");
}
bool cmSystemTools::RunSingleCommand(
const char* command,
std::string* output,
int *retVal,
const char* dir,
bool verbose,
int timeout)
{
if(s_DisableRunCommandOutput)
{
verbose = false;
}
std::vector<std::string> args;
std::string arg;
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bool win_path = false;
if ( command[0] != '/' && command[1] == ':' && command[2] == '\\' ||
command[0] == '\"' && command[1] != '/' && command[2] == ':' && command[3] == '\\' ||
command[0] == '\\' && command[1] == '\\')
{
win_path = true;
}
// Split the command into an argv array.
for(const char* c = command; *c;)
{
// Skip over whitespace.
while(*c == ' ' || *c == '\t')
{
++c;
}
arg = "";
if(*c == '"')
{
// Parse a quoted argument.
++c;
while(*c && *c != '"')
{
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arg.append(1, *c);
++c;
}
if(*c)
{
++c;
}
args.push_back(arg);
}
else if(*c)
{
// Parse an unquoted argument.
while(*c && *c != ' ' && *c != '\t')
{
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if(*c == '\\' && !win_path)
{
++c;
if(*c)
{
arg.append(1, *c);
++c;
}
}
else
{
arg.append(1, *c);
++c;
}
}
args.push_back(arg);
}
}
std::vector<const char*> argv;
for(std::vector<std::string>::const_iterator a = args.begin();
a != args.end(); ++a)
{
argv.push_back(a->c_str());
}
argv.push_back(0);
if(argv.size() < 2)
{
return false;
}
if ( output )
{
*output = "";
}
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cmsysProcess* cp = cmsysProcess_New();
cmsysProcess_SetCommand(cp, &*argv.begin());
cmsysProcess_SetWorkingDirectory(cp, dir);
cmsysProcess_SetOption(cp, cmsysProcess_Option_HideWindow, 1);
cmsysProcess_SetTimeout(cp, timeout);
cmsysProcess_Execute(cp);
char* data;
int length;
while(cmsysProcess_WaitForData(cp, (cmsysProcess_Pipe_STDOUT |
cmsysProcess_Pipe_STDERR),
&data, &length, 0))
{
if ( output )
{
output->append(data, length);
}
if(verbose)
{
std::cout.write(data, length);
}
}
cmsysProcess_WaitForExit(cp, 0);
bool result = true;
if(cmsysProcess_GetState(cp) == cmsysProcess_State_Exited)
{
if ( retVal )
{
*retVal = cmsysProcess_GetExitValue(cp);
}
else
{
if ( cmsysProcess_GetExitValue(cp) != 0 )
{
result = false;
}
}
}
else
{
result = false;
}
cmsysProcess_Delete(cp);
return result;
}
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bool cmSystemTools::RunCommand(const char* command,
std::string& output,
const char* dir,
bool verbose,
int timeout)
{
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int dummy;
return cmSystemTools::RunCommand(command, output, dummy,
dir, verbose, timeout);
}
#if defined(WIN32) && !defined(__CYGWIN__)
#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,
int timeout)
{
#if defined(__BORLANDC__)
return cmWin32ProcessExecution::BorlandRunCommand(command, dir, output,
retVal,
verbose, timeout,
cmSystemTools::GetRunCommandHideConsole());
#else // Visual studio
::SetLastError(ERROR_SUCCESS);
if ( ! command )
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{
cmSystemTools::Error("No command specified");
return false;
}
cmWin32ProcessExecution resProc;
if(cmSystemTools::GetRunCommandHideConsole())
{
resProc.SetHideWindows(true);
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}
if ( cmSystemTools::GetWindows9xComspecSubstitute() )
{
resProc.SetConsoleSpawn(cmSystemTools::GetWindows9xComspecSubstitute() );
}
if ( !resProc.StartProcess(command, dir, verbose) )
{
return false;
}
resProc.Wait(timeout);
output = resProc.GetOutput();
retVal = resProc.GetExitValue();
return true;
#endif
}
// use this for shell commands like echo and dir
bool RunCommandViaSystem(const char* command,
const char* dir,
std::string& output,
int& retVal,
bool verbose)
{
std::cout << "@@ " << command << std::endl;
std::string commandInDir;
if(dir)
{
commandInDir = "cd ";
commandInDir += cmSystemTools::ConvertToOutputPath(dir);
commandInDir += " && ";
commandInDir += command;
}
else
{
commandInDir = command;
}
command = commandInDir.c_str();
std::string commandToFile = command;
commandToFile += " > ";
std::string tempFile;
tempFile += _tempnam(0, "cmake");
commandToFile += tempFile;
retVal = system(commandToFile.c_str());
std::ifstream fin(tempFile.c_str());
if(!fin)
{
if(verbose)
{
std::string errormsg = "RunCommand produced no output: command: \"";
errormsg += command;
errormsg += "\"";
errormsg += "\nOutput file: ";
errormsg += tempFile;
cmSystemTools::Error(errormsg.c_str());
}
fin.close();
cmSystemTools::RemoveFile(tempFile.c_str());
return false;
}
bool multiLine = false;
std::string line;
while(cmSystemTools::GetLineFromStream(fin, line))
{
output += line;
if(multiLine)
{
output += "\n";
}
multiLine = true;
}
fin.close();
cmSystemTools::RemoveFile(tempFile.c_str());
return true;
}
#else // We have popen
bool RunCommandViaPopen(const char* command,
const char* dir,
std::string& output,
int& retVal,
bool verbose,
int /*timeout*/)
{
// if only popen worked on windows.....
std::string commandInDir;
if(dir)
{
commandInDir = "cd \"";
commandInDir += dir;
commandInDir += "\" && ";
commandInDir += command;
}
else
{
commandInDir = command;
}
commandInDir += " 2>&1";
command = commandInDir.c_str();
const int BUFFER_SIZE = 4096;
char buffer[BUFFER_SIZE];
if(verbose)
{
std::cout << "running " << command << std::endl;
}
fflush(stdout);
fflush(stderr);
FILE* cpipe = popen(command, "r");
if(!cpipe)
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{
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return false;
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}
fgets(buffer, BUFFER_SIZE, cpipe);
while(!feof(cpipe))
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{
if(verbose)
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{
std::cout << buffer << std::flush;
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}
output += buffer;
fgets(buffer, BUFFER_SIZE, cpipe);
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}
retVal = pclose(cpipe);
if (WIFEXITED(retVal))
{
retVal = WEXITSTATUS(retVal);
return true;
}
if (WIFSIGNALED(retVal))
{
retVal = WTERMSIG(retVal);
cmOStringStream error;
error << "\nProcess terminated due to ";
switch (retVal)
{
#ifdef SIGKILL
case SIGKILL:
error << "SIGKILL";
break;
#endif
#ifdef SIGFPE
case SIGFPE:
error << "SIGFPE";
break;
#endif
#ifdef SIGBUS
case SIGBUS:
error << "SIGBUS";
break;
#endif
#ifdef SIGSEGV
case SIGSEGV:
error << "SIGSEGV";
break;
#endif
default:
error << "signal " << retVal;
break;
}
output += error.str();
}
return false;
}
#endif // endif WIN32 not CYGWIN
// run a command unix uses popen (easy)
// windows uses system and ShortPath
bool cmSystemTools::RunCommand(const char* command,
std::string& output,
int &retVal,
const char* dir,
bool verbose,
int timeout)
{
if(s_DisableRunCommandOutput)
{
verbose = false;
}
#if defined(WIN32) && !defined(__CYGWIN__)
// if the command does not start with a quote, then
// try to find the program, and if the program can not be
// found use system to run the command as it must be a built in
// shell command like echo or dir
int count = 0;
if(command[0] == '\"')
{
// count the number of quotes
for(const char* s = command; *s != 0; ++s)
{
if(*s == '\"')
{
count++;
if(count > 2)
{
break;
}
}
}
// if there are more than two double quotes use
// GetShortPathName, the cmd.exe program in windows which
// is used by system fails to execute if there are more than
// one set of quotes in the arguments
if(count > 2)
{
cmsys::RegularExpression quoted("^\"([^\"]*)\"[ \t](.*)");
if(quoted.find(command))
{
std::string shortCmd;
std::string cmd = quoted.match(1);
std::string args = quoted.match(2);
if(! cmSystemTools::FileExists(cmd.c_str()) )
{
shortCmd = cmd;
}
else if(!cmSystemTools::GetShortPath(cmd.c_str(), shortCmd))
{
cmSystemTools::Error("GetShortPath failed for " , cmd.c_str());
return false;
}
shortCmd += " ";
shortCmd += args;
//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, timeout);
}
else
{
cmSystemTools::Error("Could not parse command line with quotes ",
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 WindowsRunCommand(command, dir, output, retVal, verbose);
return ::RunCommandViaWin32(command, dir, output, retVal, verbose, timeout);
#else
return ::RunCommandViaPopen(command, dir, output, retVal, verbose, timeout);
#endif
}
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bool cmSystemTools::DoesFileExistWithExtensions(
const char* name,
const std::vector<std::string>& headerExts)
{
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std::string hname;
for( std::vector<std::string>::const_iterator ext = headerExts.begin();
ext != headerExts.end(); ++ext )
{
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hname = name;
hname += ".";
hname += *ext;
if(cmSystemTools::FileExists(hname.c_str()))
{
return true;
}
}
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return false;
}
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bool cmSystemTools::cmCopyFile(const char* source, const char* destination)
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{
return Superclass::CopyFileAlways(source, destination);
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}
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void cmSystemTools::Glob(const char *directory, const char *regexp,
std::vector<std::string>& files)
{
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cmsys::Directory d;
cmsys::RegularExpression reg(regexp);
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if (d.Load(directory))
{
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size_t numf;
unsigned int i;
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numf = d.GetNumberOfFiles();
for (i = 0; i < numf; i++)
{
std::string fname = d.GetFile(i);
if (reg.find(fname))
{
files.push_back(fname);
}
}
}
}
void cmSystemTools::GlobDirs(const char *fullPath,
std::vector<std::string>& files)
{
std::string path = fullPath;
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std::string::size_type pos = path.find("/*");
if(pos == std::string::npos)
{
files.push_back(fullPath);
return;
}
std::string startPath = path.substr(0, pos);
std::string finishPath = path.substr(pos+2);
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cmsys::Directory d;
if (d.Load(startPath.c_str()))
{
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for (unsigned int i = 0; i < d.GetNumberOfFiles(); ++i)
{
if((std::string(d.GetFile(i)) != ".")
&& (std::string(d.GetFile(i)) != ".."))
{
std::string fname = startPath;
fname +="/";
fname += d.GetFile(i);
if(cmSystemTools::FileIsDirectory(fname.c_str()))
{
fname += finishPath;
cmSystemTools::GlobDirs(fname.c_str(), files);
}
}
}
}
}
void cmSystemTools::ExpandList(std::vector<std::string> const& arguments,
std::vector<std::string>& newargs)
{
std::vector<std::string>::const_iterator i;
for(i = arguments.begin();i != arguments.end(); ++i)
{
cmSystemTools::ExpandListArgument(*i, newargs);
}
}
void cmSystemTools::ExpandListArgument(const std::string& arg,
std::vector<std::string>& newargs)
{
std::string newarg;
// If argument is empty, it is an empty list.
if(arg.length() == 0)
{
return;
}
// if there are no ; in the name then just copy the current string
if(arg.find(';') == std::string::npos)
{
newargs.push_back(arg);
}
else
{
std::string::size_type start = 0;
std::string::size_type endpos = 0;
const std::string::size_type size = arg.size();
// break up ; separated sections of the string into separate strings
while(endpos != size)
{
endpos = arg.find(';', start);
if(endpos == std::string::npos)
{
endpos = arg.size();
}
else
{
// skip right over escaped ; ( \; )
while((endpos != std::string::npos)
&& (endpos > 0)
&& ((arg)[endpos-1] == '\\') )
{
endpos = arg.find(';', endpos+1);
}
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if(endpos == std::string::npos)
{
endpos = arg.size();
}
}
std::string::size_type len = endpos - start;
if (len > 0)
{
// check for a closing ] after the start position
if(arg.find('[', start) == std::string::npos)
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{
// if there is no [ in the string then keep it
newarg = arg.substr(start, len);
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}
else
{
int opencount = 0;
int closecount = 0;
for(std::string::size_type j = start; j < endpos; ++j)
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{
if(arg.at(j) == '[')
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{
++opencount;
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}
else if (arg.at(j) == ']')
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{
++closecount;
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}
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}
if(opencount != closecount)
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{
// skip this one
endpos = arg.find(';', endpos+1);
if(endpos == std::string::npos)
{
endpos = arg.size();
}
len = endpos - start;
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}
newarg = arg.substr(start, len);
}
std::string::size_type pos = newarg.find("\\;");
if(pos != std::string::npos)
{
newarg.erase(pos, 1);
}
newargs.push_back(newarg);
}
start = endpos+1;
}
}
}
bool cmSystemTools::SimpleGlob(const std::string& glob,
std::vector<std::string>& files,
int type /* = 0 */)
{
files.clear();
if ( glob[glob.size()-1] != '*' )
{
return false;
}
std::string path = cmSystemTools::GetFilenamePath(glob);
std::string ppath = cmSystemTools::GetFilenameName(glob);
ppath = ppath.substr(0, ppath.size()-1);
if ( path.size() == 0 )
{
path = "/";
}
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bool res = false;
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cmsys::Directory d;
if (d.Load(path.c_str()))
{
for (unsigned int i = 0; i < d.GetNumberOfFiles(); ++i)
{
if((std::string(d.GetFile(i)) != ".")
&& (std::string(d.GetFile(i)) != ".."))
{
std::string fname = path;
if ( path[path.size()-1] != '/' )
{
fname +="/";
}
fname += d.GetFile(i);
std::string sfname = d.GetFile(i);
if ( type > 0 && cmSystemTools::FileIsDirectory(fname.c_str()) )
{
continue;
}
if ( type < 0 && !cmSystemTools::FileIsDirectory(fname.c_str()) )
{
continue;
}
if ( sfname.size() >= ppath.size() &&
sfname.substr(0, ppath.size()) ==
ppath )
{
files.push_back(fname);
res = true;
}
}
}
}
return res;
}
cmSystemTools::FileFormat cmSystemTools::GetFileFormat(const char* cext)
{
if ( ! cext || *cext == 0 )
{
return cmSystemTools::NO_FILE_FORMAT;
}
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//std::string ext = cmSystemTools::LowerCase(cext);
std::string ext = cext;
if ( ext == "c" || ext == ".c" ) { return cmSystemTools::C_FILE_FORMAT; }
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if (
ext == "C" || ext == ".C" ||
ext == "M" || ext == ".M" ||
ext == "c++" || ext == ".c++" ||
ext == "cc" || ext == ".cc" ||
ext == "cpp" || ext == ".cpp" ||
ext == "cxx" || ext == ".cxx" ||
ext == "m" || ext == ".m" ||
ext == "mm" || ext == ".mm"
) { return cmSystemTools::CXX_FILE_FORMAT; }
if ( ext == "java" || ext == ".java" ) { return cmSystemTools::JAVA_FILE_FORMAT; }
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if (
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ext == "H" || ext == ".H" ||
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ext == "h" || ext == ".h" ||
ext == "h++" || ext == ".h++" ||
ext == "hm" || ext == ".hm" ||
ext == "hpp" || ext == ".hpp" ||
ext == "hxx" || ext == ".hxx" ||
ext == "in" || ext == ".in" ||
ext == "txx" || ext == ".txx"
) { return cmSystemTools::HEADER_FILE_FORMAT; }
if ( ext == "rc" || ext == ".rc" ) { return cmSystemTools::RESOURCE_FILE_FORMAT; }
if ( ext == "def" || ext == ".def" ) { return cmSystemTools::DEFINITION_FILE_FORMAT; }
if ( ext == "lib" || ext == ".lib" ||
ext == "a" || ext == ".a") { return cmSystemTools::STATIC_LIBRARY_FILE_FORMAT; }
if ( ext == "o" || ext == ".o" ||
ext == "obj" || ext == ".obj") { return cmSystemTools::OBJECT_FILE_FORMAT; }
#ifdef __APPLE__
if ( ext == "dylib" || ext == ".dylib" )
{ return cmSystemTools::SHARED_LIBRARY_FILE_FORMAT; }
if ( ext == "so" || ext == ".so" ||
ext == "bundle" || ext == ".bundle" )
{ return cmSystemTools::MODULE_FILE_FORMAT; }
#else // __APPLE__
if ( ext == "so" || ext == ".so" ||
ext == "sl" || ext == ".sl" ||
ext == "dll" || ext == ".dll" )
{ return cmSystemTools::SHARED_LIBRARY_FILE_FORMAT; }
#endif // __APPLE__
return cmSystemTools::UNKNOWN_FILE_FORMAT;
}
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bool cmSystemTools::Split(const char* s, std::vector<cmStdString>& l)
{
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std::vector<std::string> temp;
if(!Superclass::Split(s, temp))
{
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return false;
}
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for(std::vector<std::string>::const_iterator i = temp.begin();
i != temp.end(); ++i)
{
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l.push_back(*i);
}
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return true;
}