/*========================================================================= Program: Insight Segmentation & Registration Toolkit Module: $RCSfile$ Language: C++ Date: $Date$ Version: $Revision$ Copyright (c) 2002 Insight Consortium. All rights reserved. See ITKCopyright.txt or http://www.itk.org/HTML/Copyright.htm for details. 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. =========================================================================*/ #include "cmSystemTools.h" #include "errno.h" #include "stdio.h" #include #include "cmRegularExpression.h" #include #include "cmDirectory.h" #include "cmMakefile.h" // support for realpath call #ifndef _WIN32 #include #include #include #include #endif #if defined(_MSC_VER) || defined(__BORLANDC__) #include #include #include #define _unlink unlink inline int Mkdir(const char* dir) { return _mkdir(dir); } inline const char* Getcwd(char* buf, unsigned int len) { return _getcwd(buf, len); } inline int Chdir(const char* dir) { #if defined(__BORLANDC__) return chdir(dir); #else return _chdir(dir); #endif } #else #include #include #include inline int Mkdir(const char* dir) { return mkdir(dir, 00777); } inline const char* Getcwd(char* buf, unsigned int len) { return getcwd(buf, len); } inline int Chdir(const char* dir) { return chdir(dir); } #endif bool cmSystemTools::s_DisableRunCommandOutput = false; bool cmSystemTools::s_ErrorOccured = false; bool cmSystemTools::s_DisableMessages = false; void (*cmSystemTools::s_ErrorCallback)(const char*, const char*, bool&); // adds the elements of the env variable path to the arg passed in void cmSystemTools::GetPath(std::vector& path) { #if defined(_WIN32) && !defined(__CYGWIN__) const char* pathSep = ";"; #else const char* pathSep = ":"; #endif std::string pathEnv = getenv("PATH"); // A hack to make the below algorithm work. if(pathEnv[pathEnv.length()-1] != ':') { pathEnv += pathSep; } std::string::size_type start =0; bool done = false; while(!done) { std::string::size_type endpos = pathEnv.find(pathSep, start); if(endpos != std::string::npos) { path.push_back(pathEnv.substr(start, endpos-start)); start = endpos+1; } else { done = true; } } for(std::vector::iterator i = path.begin(); i != path.end(); ++i) { cmSystemTools::ConvertToUnixSlashes(*i); } } const char* cmSystemTools::GetExecutableExtension() { #if defined(_WIN32) || defined(__CYGWIN__) return ".exe"; #else return ""; #endif } bool cmSystemTools::MakeDirectory(const char* path) { if(cmSystemTools::FileExists(path)) { return true; } std::string dir = path; if(dir.size() == 0) { return false; } cmSystemTools::ConvertToUnixSlashes(dir); std::string::size_type pos = dir.find(':'); if(pos == std::string::npos) { pos = 0; } std::string topdir; while((pos = dir.find('/', pos)) != std::string::npos) { topdir = dir.substr(0, pos); Mkdir(topdir.c_str()); pos++; } if(dir[dir.size()-1] == '/') { topdir = dir.substr(0, dir.size()); } else { topdir = dir; } if(Mkdir(topdir.c_str()) != 0) { // There is a bug in the Borland Run time library which makes MKDIR // return EACCES when it should return EEXISTS // if it is some other error besides directory exists // then return false if( (errno != EEXIST) #ifdef __BORLANDC__ && (errno != EACCES) #endif ) { cmSystemTools::Error("Faild to create directory:", path); return false; } } return true; } // replace replace with with as many times as it shows up in source. // write the result into source. void cmSystemTools::ReplaceString(std::string& source, const char* replace, const char* with) { std::string::size_type lengthReplace = strlen(replace); std::string::size_type lengthWith = strlen(with); std::string rest; std::string::size_type start = source.find(replace); while(start != std::string::npos) { rest = source.substr(start+lengthReplace); source = source.substr(0, start); source += with; source += rest; start = source.find(replace, start + lengthWith ); } } // Read a registry value. // Example : // HKEY_LOCAL_MACHINE\SOFTWARE\Python\PythonCore\2.1\InstallPath // => will return the data of the "default" value of the key // HKEY_LOCAL_MACHINE\SOFTWARE\Scriptics\Tcl\8.4;Root // => will return the data of the "Root" value of the key #if defined(_WIN32) && !defined(__CYGWIN__) bool cmSystemTools::ReadRegistryValue(const char *key, std::string &value) { std::string primary = key; std::string second; std::string valuename; size_t start = primary.find("\\"); if (start == std::string::npos) { return false; } size_t valuenamepos = primary.find(";"); if (valuenamepos != std::string::npos) { valuename = primary.substr(valuenamepos+1); } second = primary.substr(start+1, valuenamepos-start-1); primary = primary.substr(0, start); HKEY primaryKey; if (primary == "HKEY_CURRENT_USER") { primaryKey = HKEY_CURRENT_USER; } if (primary == "HKEY_CURRENT_CONFIG") { primaryKey = HKEY_CURRENT_CONFIG; } if (primary == "HKEY_CLASSES_ROOT") { primaryKey = HKEY_CLASSES_ROOT; } if (primary == "HKEY_LOCAL_MACHINE") { primaryKey = HKEY_LOCAL_MACHINE; } if (primary == "HKEY_USERS") { primaryKey = HKEY_USERS; } HKEY hKey; if(RegOpenKeyEx(primaryKey, second.c_str(), 0, KEY_READ, &hKey) != ERROR_SUCCESS) { return false; } else { DWORD dwType, dwSize; dwSize = 1023; char data[1024]; if(RegQueryValueEx(hKey, (LPTSTR)valuename.c_str(), NULL, &dwType, (BYTE *)data, &dwSize) == ERROR_SUCCESS) { if (dwType == REG_SZ) { value = data; return true; } } } return false; } #else bool cmSystemTools::ReadRegistryValue(const char *, std::string &) { return false; } #endif // Write a registry value. // Example : // HKEY_LOCAL_MACHINE\SOFTWARE\Python\PythonCore\2.1\InstallPath // => will set the data of the "default" value of the key // HKEY_LOCAL_MACHINE\SOFTWARE\Scriptics\Tcl\8.4;Root // => will set the data of the "Root" value of the key #if defined(_WIN32) && !defined(__CYGWIN__) bool cmSystemTools::WriteRegistryValue(const char *key, const char *value) { std::string primary = key; std::string second; std::string valuename; size_t start = primary.find("\\"); if (start == std::string::npos) { return false; } size_t valuenamepos = primary.find(";"); if (valuenamepos != std::string::npos) { valuename = primary.substr(valuenamepos+1); } second = primary.substr(start+1, valuenamepos-start-1); primary = primary.substr(0, start); HKEY primaryKey; if (primary == "HKEY_CURRENT_USER") { primaryKey = HKEY_CURRENT_USER; } if (primary == "HKEY_CURRENT_CONFIG") { primaryKey = HKEY_CURRENT_CONFIG; } if (primary == "HKEY_CLASSES_ROOT") { primaryKey = HKEY_CLASSES_ROOT; } if (primary == "HKEY_LOCAL_MACHINE") { primaryKey = HKEY_LOCAL_MACHINE; } if (primary == "HKEY_USERS") { primaryKey = HKEY_USERS; } HKEY hKey; DWORD dwDummy; if(RegCreateKeyEx(primaryKey, second.c_str(), 0, "", REG_OPTION_NON_VOLATILE, KEY_WRITE, NULL, &hKey, &dwDummy) != ERROR_SUCCESS) { return false; } if(RegSetValueEx(hKey, (LPTSTR)valuename.c_str(), 0, REG_SZ, (CONST BYTE *)value, (DWORD)(strlen(value) + 1)) == ERROR_SUCCESS) { return true; } return false; } #else bool cmSystemTools::WriteRegistryValue(const char *, const char *) { return false; } #endif // Delete a registry value. // Example : // HKEY_LOCAL_MACHINE\SOFTWARE\Python\PythonCore\2.1\InstallPath // => will delete the data of the "default" value of the key // HKEY_LOCAL_MACHINE\SOFTWARE\Scriptics\Tcl\8.4;Root // => will delete the data of the "Root" value of the key #if defined(_WIN32) && !defined(__CYGWIN__) bool cmSystemTools::DeleteRegistryValue(const char *key) { std::string primary = key; std::string second; std::string valuename; size_t start = primary.find("\\"); if (start == std::string::npos) { return false; } size_t valuenamepos = primary.find(";"); if (valuenamepos != std::string::npos) { valuename = primary.substr(valuenamepos+1); } second = primary.substr(start+1, valuenamepos-start-1); primary = primary.substr(0, start); HKEY primaryKey; if (primary == "HKEY_CURRENT_USER") { primaryKey = HKEY_CURRENT_USER; } if (primary == "HKEY_CURRENT_CONFIG") { primaryKey = HKEY_CURRENT_CONFIG; } if (primary == "HKEY_CLASSES_ROOT") { primaryKey = HKEY_CLASSES_ROOT; } if (primary == "HKEY_LOCAL_MACHINE") { primaryKey = HKEY_LOCAL_MACHINE; } if (primary == "HKEY_USERS") { primaryKey = HKEY_USERS; } HKEY hKey; if(RegOpenKeyEx(primaryKey, second.c_str(), 0, KEY_WRITE, &hKey) != ERROR_SUCCESS) { return false; } else { if(RegDeleteValue(hKey, (LPTSTR)valuename.c_str()) == ERROR_SUCCESS) { return true; } } return false; } #else bool cmSystemTools::DeleteRegistryValue(const char *) { return false; } #endif // replace replace with with as many times as it shows up in source. // write the result into source. #if defined(_WIN32) && !defined(__CYGWIN__) 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. cmRegularExpression regEntry("\\[(HKEY[^]]*)\\]"); // check for black line or comment while (regEntry.find(source)) { // the arguments are the second match std::string key = regEntry.match(1); std::string val; if (ReadRegistryValue(key.c_str(), val)) { std::string reg = "["; reg += key + "]"; cmSystemTools::ReplaceString(source, reg.c_str(), val.c_str()); } else { std::string reg = "["; reg += key + "]"; cmSystemTools::ReplaceString(source, reg.c_str(), "/registry"); } } } #else void cmSystemTools::ExpandRegistryValues(std::string&) { } #endif std::string cmSystemTools::EscapeQuotes(const char* str) { std::string result = ""; for(const char* ch = str; *ch != '\0'; ++ch) { if(*ch == '"') { result += '\\'; } result += *ch; } return result; } bool cmSystemTools::SameFile(const char* file1, const char* file2) { #ifdef _WIN32 HANDLE hFile1, hFile2; hFile1 = CreateFile( file1, GENERIC_READ, FILE_SHARE_READ , NULL, OPEN_EXISTING, FILE_FLAG_BACKUP_SEMANTICS, NULL ); hFile2 = CreateFile( file2, GENERIC_READ, FILE_SHARE_READ, NULL, OPEN_EXISTING, FILE_FLAG_BACKUP_SEMANTICS, NULL ); if( hFile1 == INVALID_HANDLE_VALUE || hFile2 == INVALID_HANDLE_VALUE) { if(hFile1 != INVALID_HANDLE_VALUE) { CloseHandle(hFile1); } if(hFile2 != INVALID_HANDLE_VALUE) { CloseHandle(hFile2); } return false; } BY_HANDLE_FILE_INFORMATION fiBuf1; BY_HANDLE_FILE_INFORMATION fiBuf2; GetFileInformationByHandle( hFile1, &fiBuf1 ); GetFileInformationByHandle( hFile2, &fiBuf2 ); CloseHandle(hFile1); CloseHandle(hFile2); return (fiBuf1.nFileIndexHigh == fiBuf2.nFileIndexHigh && fiBuf1.nFileIndexLow == fiBuf2.nFileIndexLow); #else struct stat fileStat1, fileStat2; if (stat(file1, &fileStat1) == 0 && stat(file2, &fileStat2) == 0) { // see if the files are the same file // check the device inode and size if(fileStat2.st_dev == fileStat1.st_dev && fileStat2.st_ino == fileStat1.st_ino && fileStat2.st_size == fileStat1.st_size ) { return true; } } return false; #endif } // return true if the file exists bool cmSystemTools::FileExists(const char* filename) { struct stat fs; if (stat(filename, &fs) != 0) { return false; } else { return true; } } // Return a capitalized string (i.e the first letter is uppercased, all other // are lowercased) std::string cmSystemTools::Capitalized(const std::string& s) { std::string n; n.resize(s.size()); n[0] = toupper(s[0]); for (size_t i = 1; i < s.size(); i++) { n[i] = tolower(s[i]); } return n; } // Return a lower case string std::string cmSystemTools::LowerCase(const std::string& s) { std::string n; n.resize(s.size()); for (size_t i = 0; i < s.size(); i++) { n[i] = tolower(s[i]); } return n; } // Return a lower case string std::string cmSystemTools::UpperCase(const std::string& s) { std::string n; n.resize(s.size()); for (size_t i = 0; i < s.size(); i++) { n[i] = toupper(s[i]); } return n; } // convert windows slashes to unix slashes void cmSystemTools::ConvertToUnixSlashes(std::string& path) { std::string::size_type pos = 0; while((pos = path.find('\\', pos)) != std::string::npos) { path[pos] = '/'; pos++; } // remove any trailing slash if(path.size() && path[path.size()-1] == '/') { path = path.substr(0, path.size()-1); } // if there is a tilda ~ then replace it with HOME if(path.find("~") == 0) { if (getenv("HOME")) { path = std::string(getenv("HOME")) + path.substr(1); } } // if there is a /tmp_mnt in a path get rid of it! // stupid sgi's if(path.find("/tmp_mnt") == 0) { path = path.substr(8); } } // change // to /, and escape any spaces in the path std::string cmSystemTools::ConvertToUnixOutputPath(const char* path) { std::string ret = path; // remove // except at the beginning might be a cygwin drive std::string::size_type pos = 1; while((pos = ret.find("//", pos)) != std::string::npos) { ret.erase(pos, 1); } // now escape spaces if there is a space in the path if(ret.find(" ") != std::string::npos) { std::string result = ""; char lastch = 1; for(const char* ch = ret.c_str(); *ch != '\0'; ++ch) { // if it is already escaped then don't try to escape it again if(*ch == ' ' && lastch != '\\') { result += '\\'; } result += *ch; lastch = *ch; } ret = result; } return ret; } std::string cmSystemTools::EscapeSpaces(const char* str) { #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) { result = "\""; result += str; result += "\""; return result; } return str; #else std::string result = ""; for(const char* ch = str; *ch != '\0'; ++ch) { if(*ch == ' ') { result += '\\'; } result += *ch; } return result; #endif } std::string cmSystemTools::ConvertToOutputPath(const char* path) { #if defined(_WIN32) && !defined(__CYGWIN__) return cmSystemTools::ConvertToWindowsOutputPath(path); #else return cmSystemTools::ConvertToUnixOutputPath(path); #endif } // remove double slashes not at the start std::string cmSystemTools::ConvertToWindowsOutputPath(const char* path) { std::string ret = path; std::string::size_type pos = 0; // first convert all of the slashes while((pos = ret.find('/', pos)) != std::string::npos) { ret[pos] = '\\'; pos++; } // check for really small paths if(ret.size() < 2) { return ret; } // now clean up a bit and remove double slashes // Only if it is not the first position in the path which is a network // path on windows pos = 1; // start at position 1 while((pos = ret.find("\\\\", pos)) != std::string::npos) { ret.erase(pos, 1); } // now double quote the path if it has spaces in it // and is not already double quoted if(ret.find(" ") != std::string::npos && ret[0] != '\"') { std::string result; result = "\"" + ret + "\""; ret = result; } return ret; } inline void RemoveComments(char* ptr) { while(*ptr) { if(*ptr == '#') { *ptr = 0; break; } ++ptr; } } bool cmSystemTools::ParseFunction(std::ifstream& fin, std::string& name, std::vector& arguments, const char* filename, bool& parseError) { parseError = false; name = ""; arguments = std::vector(); const int BUFFER_SIZE = 4096; char inbuffer[BUFFER_SIZE]; if(!fin) { return false; } if(fin.getline(inbuffer, BUFFER_SIZE ) ) { RemoveComments(inbuffer); cmRegularExpression blankLine("^[ \t\r]*$"); // cmRegularExpression comment("^[ \t]*#.*$"); cmRegularExpression oneLiner("^[ \t]*([A-Za-z_0-9]*)[ \t]*\\((.*)\\)[ \t\r]*$"); cmRegularExpression multiLine("^[ \t]*([A-Za-z_0-9]*)[ \t]*\\((.*)$"); cmRegularExpression lastLine("^(.*)\\)[ \t\r]*$"); // check for blank line or comment if(blankLine.find(inbuffer) ) { return false; } // look for a oneline fun(arg arg2) else if(oneLiner.find(inbuffer)) { // the arguments are the second match std::string args = oneLiner.match(2); name = oneLiner.match(1); // break up the arguments cmSystemTools::GetArguments(args, arguments); return true; } // look for a start of a multiline with no trailing ")" fun(arg arg2 else if(multiLine.find(inbuffer)) { name = multiLine.match(1); std::string args = multiLine.match(2); cmSystemTools::GetArguments(args, arguments); // Read lines until the closing paren is hit bool done = false; while(!done) { // read lines until the end paren is found if(fin.getline(inbuffer, BUFFER_SIZE ) ) { RemoveComments(inbuffer); // Check for comment lines and ignore them. if(blankLine.find(inbuffer)) { continue; } // Is this the last line? if(lastLine.find(inbuffer)) { done = true; std::string args = lastLine.match(1); cmSystemTools::GetArguments(args, arguments); } else { std::string line = inbuffer; cmSystemTools::GetArguments(line, arguments); } } else { parseError = true; cmSystemTools::Error("Parse error in read function missing end )\nIn File: ", filename, "\nCurrent line:", inbuffer); return false; } } return true; } else { parseError = true; cmSystemTools::Error("Parse error in read function\nIn file:", filename, "\nCurrent line:", inbuffer); return false; } } return false; } void cmSystemTools::GetArguments(std::string& line, std::vector& arguments) { // Match a normal argument (not quoted, no spaces). cmRegularExpression normalArgument("[ \t]*(([^ \t\r\\]|[\\].)+)[ \t\r]*"); // Match a quoted argument (surrounded by double quotes, spaces allowed). cmRegularExpression quotedArgument("[ \t]*(\"([^\"\\]|[\\].)*\")[ \t\r]*"); bool done = false; while(!done) { std::string arg; std::string::size_type endpos=0; bool foundQuoted = quotedArgument.find(line.c_str()); bool foundNormal = normalArgument.find(line.c_str()); if(foundQuoted && foundNormal) { // Both matches were found. Take the earlier one. // Favor double-quoted version if there is a tie. if(normalArgument.start(1) < quotedArgument.start(1)) { arg = normalArgument.match(1); endpos = normalArgument.end(1); } else { arg = quotedArgument.match(1); endpos = quotedArgument.end(1); // Strip off the double quotes on the ends. arg = arg.substr(1, arg.length()-2); } } else if (foundQuoted) { arg = quotedArgument.match(1); endpos = quotedArgument.end(1); // Strip off the double quotes on the ends. arg = arg.substr(1, arg.length()-2); } else if(foundNormal) { arg = normalArgument.match(1); endpos = normalArgument.end(1); } else { done = true; } if(!done) { arguments.push_back(cmSystemTools::RemoveEscapes(arg.c_str())); line = line.substr(endpos, line.length() - endpos); } } } std::string cmSystemTools::RemoveEscapes(const char* s) { std::string result = ""; for(const char* ch = s; *ch; ++ch) { 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 '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); } } return result; } void cmSystemTools::Error(const char* m1, const char* m2, const char* m3, const char* m4) { std::string message = "CMake Error: "; if(m1) { message += m1; } if(m2) { message += m2; } if(m3) { message += m3; } if(m4) { message += m4; } cmSystemTools::s_ErrorOccured = true; cmSystemTools::Message(message.c_str(),"Error"); } void cmSystemTools::SetErrorCallback(ErrorCallback f) { s_ErrorCallback = f; } void cmSystemTools::Message(const char* m1, const char *title) { if(s_DisableMessages) { return; } if(s_ErrorCallback) { (*s_ErrorCallback)(m1, title, s_DisableMessages); return; } else { std::cerr << m1 << std::endl; } } bool cmSystemTools::CopyFileIfDifferent(const char* source, const char* destination) { if(cmSystemTools::FilesDiffer(source, destination)) { cmSystemTools::cmCopyFile(source, destination); return true; } return false; } bool cmSystemTools::FilesDiffer(const char* source, const char* destination) { struct stat statSource; if (stat(source, &statSource) != 0) { return true; } struct stat statDestination; if (stat(destination, &statDestination) != 0) { return true; } if(statSource.st_size != statDestination.st_size) { return true; } if(statSource.st_size == 0) { return false; } #if defined(_WIN32) || defined(__CYGWIN__) std::ifstream finSource(source, std::ios::binary | std::ios::in); std::ifstream finDestination(destination, std::ios::binary | std::ios::in); #else std::ifstream finSource(source); std::ifstream finDestination(destination); #endif if(!finSource || !finDestination) { return true; } char* source_buf = new char[statSource.st_size]; char* dest_buf = new char[statSource.st_size]; finSource.read(source_buf, statSource.st_size); finDestination.read(dest_buf, statSource.st_size); if(statSource.st_size != static_cast(finSource.gcount()) || statSource.st_size != static_cast(finDestination.gcount())) { cmStringStream msg; msg << "FilesDiffer failed to read files (allocated: " << statSource.st_size << ", read source: " << finSource.gcount() << ", read dest: " << finDestination.gcount(); cmSystemTools::Error(msg.str().c_str()); delete [] source_buf; delete [] dest_buf; return false; } int ret = memcmp((const void*)source_buf, (const void*)dest_buf, statSource.st_size); delete [] dest_buf; delete [] source_buf; return ret != 0; } /** * Copy a file named by "source" to the file named by "destination". */ void cmSystemTools::cmCopyFile(const char* source, const char* destination) { const int bufferSize = 4096; char buffer[bufferSize]; // If destination is a directory, try to create a file with the same // name as the source in that directory. std::string new_destination; if(cmSystemTools::FileExists(destination) && cmSystemTools::FileIsDirectory(destination)) { new_destination = destination; cmSystemTools::ConvertToUnixSlashes(new_destination); new_destination += '/'; std::string source_name = source; new_destination += cmSystemTools::GetFilenameName(source_name); destination = new_destination.c_str(); } // Create destination directory std::string destination_dir = destination; destination_dir = cmSystemTools::GetFilenamePath(destination_dir); cmSystemTools::MakeDirectory(destination_dir.c_str()); // Open files #if defined(_WIN32) || defined(__CYGWIN__) std::ifstream fin(source, std::ios::binary | std::ios::in); #else std::ifstream fin(source); #endif if(!fin) { cmSystemTools::Error("CopyFile failed to open input file \"", source, "\""); return; } #if defined(_WIN32) || defined(__CYGWIN__) std::ofstream fout(destination, std::ios::binary | std::ios::out | std::ios::trunc); #else std::ofstream fout(destination, std::ios::out | std::ios::trunc); #endif if(!fout) { cmSystemTools::Error("CopyFile failed to open output file \"", destination, "\""); return; } // This copy loop is very sensitive on certain platforms with // slightly broken stream libraries (like HPUX). Normally, it is // incorrect to not check the error condition on the fin.read() // before using the data, but the fin.gcount() will be zero if an // error occurred. Therefore, the loop should be safe everywhere. while(fin) { fin.read(buffer, bufferSize); if(fin.gcount()) { fout.write(buffer, fin.gcount()); } } fin.close(); fout.close(); // More checks struct stat statSource, statDestination; if (stat(source, &statSource) != 0 || stat(destination, &statDestination) != 0) { cmSystemTools::Error("CopyFile failed to copy files!"); } if (statSource.st_size != statDestination.st_size) { cmStringStream msg; msg << "CopyFile failed to copy files (sizes differ, source: " << statSource.st_size << " , dest: " << statDestination.st_size; cmSystemTools::Error(msg.str().c_str()); } } // return true if the file exists long int cmSystemTools::ModifiedTime(const char* filename) { struct stat fs; if (stat(filename, &fs) != 0) { return 0; } else { return (long int)fs.st_mtime; } } bool cmSystemTools::RemoveFile(const char* source) { return unlink(source) != 0 ? false : true; } bool cmSystemTools::IsOn(const char* val) { if (!val) { return false; } std::basic_string v = val; for(std::basic_string::iterator c = v.begin(); c != v.end(); c++) { *c = toupper(*c); } return (v == "ON" || v == "1" || v == "YES" || v == "TRUE" || v == "Y"); } bool cmSystemTools::IsOff(const char* val) { if (!val || strlen(val) == 0) { return true; } std::basic_string v = val; for(std::basic_string::iterator c = v.begin(); c != v.end(); c++) { *c = toupper(*c); } return (v == "OFF" || v == "0" || v == "NO" || v == "FALSE" || v == "N" || v == "NOTFOUND" || v == "IGNORE"); } bool cmSystemTools::RunCommand(const char* command, std::string& output, const char* dir, bool verbose) { int foo; return cmSystemTools::RunCommand(command, output, foo, dir, verbose); } #if defined(WIN32) && !defined(__CYGWIN__) // use this for shell commands like echo and dir bool RunCommandViaSystem(const char* command, const char* dir, std::string& output, int& retVal, bool verbose) { const int BUFFER_SIZE = 4096; char buffer[BUFFER_SIZE]; std::string commandInDir; if(dir) { commandInDir = "cd "; commandInDir += 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; while(fin) { fin.getline(buffer, BUFFER_SIZE); output += buffer; if(multiLine) { output += "\n"; } multiLine = true; } fin.close(); cmSystemTools::RemoveFile(tempFile.c_str()); return true; } #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) { 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) { cmRegularExpression quoted("^\"([^\"]*)\"[ \t](.*)"); if(quoted.find(command)) { std::string shortCmd; std::string cmd = quoted.match(1); std::string args = quoted.match(2); 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); } 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); #else // if only popen worked on windows..... std::string commandInDir; if(dir) { commandInDir = "cd "; commandInDir += dir; commandInDir += " && "; commandInDir += command; } else { commandInDir = command; } 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) { return false; } fgets(buffer, BUFFER_SIZE, cpipe); while(!feof(cpipe)) { if(verbose) { std::cout << buffer << std::flush; } output += buffer; fgets(buffer, BUFFER_SIZE, cpipe); } retVal = pclose(cpipe); if (WIFEXITED(retVal)) { retVal = WEXITSTATUS(retVal); return true; } if (WIFSIGNALED(retVal)) { retVal = WTERMSIG(retVal); cmStringStream 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 } /** * Find the file the given name. Searches the given path and then * the system search path. Returns the full path to the file if it is * found. Otherwise, the empty string is returned. */ std::string cmSystemTools::FindFile(const char* name, const std::vector& userPaths) { // Add the system search path to our path. std::vector path = userPaths; cmSystemTools::GetPath(path); std::string tryPath; for(std::vector::const_iterator p = path.begin(); p != path.end(); ++p) { tryPath = *p; tryPath += "/"; tryPath += name; if(cmSystemTools::FileExists(tryPath.c_str()) && !cmSystemTools::FileIsDirectory(tryPath.c_str())) { return cmSystemTools::CollapseFullPath(tryPath.c_str()); } } // Couldn't find the file. return ""; } /** * Find the executable with the given name. Searches the given path and then * the system search path. Returns the full path to the executable if it is * found. Otherwise, the empty string is returned. */ std::string cmSystemTools::FindProgram(const char* name, const std::vector& userPaths, bool no_system_path) { // See if the executable exists as written. if(cmSystemTools::FileExists(name) && !cmSystemTools::FileIsDirectory(name)) { return cmSystemTools::CollapseFullPath(name); } std::string tryPath = name; tryPath += cmSystemTools::GetExecutableExtension(); if(cmSystemTools::FileExists(tryPath.c_str()) && !cmSystemTools::FileIsDirectory(tryPath.c_str())) { return cmSystemTools::CollapseFullPath(tryPath.c_str()); } // Add the system search path to our path. std::vector path = userPaths; if (!no_system_path) { cmSystemTools::GetPath(path); } for(std::vector::const_iterator p = path.begin(); p != path.end(); ++p) { tryPath = *p; tryPath += "/"; tryPath += name; if(cmSystemTools::FileExists(tryPath.c_str()) && !cmSystemTools::FileIsDirectory(tryPath.c_str())) { return cmSystemTools::CollapseFullPath(tryPath.c_str()); } #ifdef _WIN32 tryPath += ".com"; if(cmSystemTools::FileExists(tryPath.c_str()) && !cmSystemTools::FileIsDirectory(tryPath.c_str())) { return cmSystemTools::CollapseFullPath(tryPath.c_str()); } tryPath = *p; tryPath += "/"; tryPath += name; #endif tryPath += cmSystemTools::GetExecutableExtension(); if(cmSystemTools::FileExists(tryPath.c_str()) && !cmSystemTools::FileIsDirectory(tryPath.c_str())) { return cmSystemTools::CollapseFullPath(tryPath.c_str()); } } // Couldn't find the program. return ""; } /** * Find the library with the given name. Searches the given path and then * the system search path. Returns the full path to the library if it is * found. Otherwise, the empty string is returned. */ std::string cmSystemTools::FindLibrary(const char* name, const std::vector& userPaths, const cmMakefile *makefile) { // See if the executable exists as written. if(cmSystemTools::FileExists(name)) { return cmSystemTools::CollapseFullPath(name); } // Add the system search path to our path. std::vector path = userPaths; cmSystemTools::GetPath(path); // Add some lib directories specific to compilers, depending on the // current generator, so that library that might have been stored here // can be found too. // i.e. Microsoft Visual Studio or .Net: path to compiler/../Lib // Borland: path to compiler/../Lib if (makefile) { const char* genName = makefile->GetDefinition("CMAKE_GENERATOR"); if (genName) { if (!strcmp(genName, "NMake Makefiles") || !strcmp(genName, "Visual Studio 6")) { const char* compiler = makefile->GetDefinition("CMAKE_CXX_COMPILER"); if (compiler) { std::string compiler_path = cmSystemTools::FindProgram(compiler); if (compiler_path.size()) { std::string lib_path = cmSystemTools::GetFilenamePath( cmSystemTools::GetFilenamePath(compiler_path)) + "/Lib"; path.push_back(lib_path); } } } else if (!strcmp(genName, "Visual Studio 7")) { // It is likely that the compiler won't be in the path for .Net, but // we know where devenv is. const char* devenv = makefile->GetDefinition("MICROSOFT_DEVENV"); if (devenv) { std::string devenv_path = cmSystemTools::FindProgram(devenv); if (devenv_path.size()) { std::string vc7_path = cmSystemTools::GetFilenamePath( cmSystemTools::GetFilenamePath( cmSystemTools::GetFilenamePath(devenv_path))) + "/Vc7"; path.push_back(vc7_path + "/lib"); path.push_back(vc7_path + "/PlatformSDK/lib"); } } } else if (!strcmp(genName, "Borland Makefiles")) { const char* bcb_bin_path = makefile->GetDefinition("BCB_BIN_PATH"); if (bcb_bin_path) { std::string lib_path = cmSystemTools::GetFilenamePath(bcb_bin_path) + "/Lib"; path.push_back(lib_path); } } } } std::string tryPath; for(std::vector::const_iterator p = path.begin(); p != path.end(); ++p) { #if defined(_WIN32) && !defined(__CYGWIN__) tryPath = *p; tryPath += "/"; tryPath += name; tryPath += ".lib"; if(cmSystemTools::FileExists(tryPath.c_str())) { return cmSystemTools::CollapseFullPath(tryPath.c_str()); } #else tryPath = *p; tryPath += "/lib"; tryPath += name; tryPath += ".so"; if(cmSystemTools::FileExists(tryPath.c_str())) { return cmSystemTools::CollapseFullPath(tryPath.c_str()); } tryPath = *p; tryPath += "/lib"; tryPath += name; tryPath += ".a"; if(cmSystemTools::FileExists(tryPath.c_str())) { return cmSystemTools::CollapseFullPath(tryPath.c_str()); } tryPath = *p; tryPath += "/lib"; tryPath += name; tryPath += ".sl"; if(cmSystemTools::FileExists(tryPath.c_str())) { return cmSystemTools::CollapseFullPath(tryPath.c_str()); } #endif } // Couldn't find the library. return ""; } bool cmSystemTools::FileIsDirectory(const char* name) { struct stat fs; if(stat(name, &fs) == 0) { #if _WIN32 return ((fs.st_mode & _S_IFDIR) != 0); #else return S_ISDIR(fs.st_mode); #endif } else { return false; } } int cmSystemTools::ChangeDirectory(const char *dir) { return Chdir(dir); } std::string cmSystemTools::GetCurrentWorkingDirectory() { char buf[2048]; std::string path = Getcwd(buf, 2048); return path; } /** * Given the path to a program executable, get the directory part of the path with the * file stripped off. If there is no directory part, the empty string is returned. */ std::string cmSystemTools::GetProgramPath(const char* in_name) { std::string dir, file; cmSystemTools::SplitProgramPath(in_name, dir, file); return dir; } /** * Given the path to a program executable, get the directory part of the path * with the file stripped off. If there is no directory part, the empty * string is returned. */ void cmSystemTools::SplitProgramPath(const char* in_name, std::string& dir, std::string& file) { dir = in_name; file = ""; cmSystemTools::ConvertToUnixSlashes(dir); if(!cmSystemTools::FileIsDirectory(dir.c_str())) { std::string::size_type slashPos = dir.rfind("/"); if(slashPos != std::string::npos) { file = dir.substr(slashPos+1); dir = dir.substr(0, slashPos); } else { file = dir; dir = ""; } } if((dir != "") && !cmSystemTools::FileIsDirectory(dir.c_str())) { std::string oldDir = in_name; cmSystemTools::ConvertToUnixSlashes(oldDir); cmSystemTools::Error("Error splitting file name off end of path:\n", oldDir.c_str(), "\nDirectory not found: ", dir.c_str()); dir = in_name; return; } } /** * Given a path to a file or directory, convert it to a full path. * This collapses away relative paths. The full path is returned. */ std::string cmSystemTools::CollapseFullPath(const char* in_name) { std::string dir, file; cmSystemTools::SplitProgramPath(in_name, dir, file); #ifdef _WIN32 // Ultra-hack warning: // This changes to the target directory, saves the working directory, // and then changes back to the original working directory. std::string cwd = cmSystemTools::GetCurrentWorkingDirectory(); if(dir != "") { Chdir(dir.c_str()); } std::string newDir = cmSystemTools::GetCurrentWorkingDirectory(); Chdir(cwd.c_str()); cmSystemTools::ConvertToUnixSlashes(newDir); std::string newPath = newDir+"/"+file; return newPath; #else # ifdef MAXPATHLEN char resolved_name[MAXPATHLEN]; # else # ifdef PATH_MAX char resolved_name[PATH_MAX]; # else char resolved_name[5024]; # endif # endif if(dir != "") { realpath(dir.c_str(), resolved_name); dir = resolved_name; } else { dir = cmSystemTools::GetCurrentWorkingDirectory(); } if(file == "") { return dir; } return dir + "/" + file; #endif } /** * Return path of a full filename (no trailing slashes). * Warning: returned path is converted to Unix slashes format. */ std::string cmSystemTools::GetFilenamePath(const std::string& filename) { std::string fn = filename; cmSystemTools::ConvertToUnixSlashes(fn); std::string::size_type slash_pos = fn.rfind("/"); if(slash_pos != std::string::npos) { return fn.substr(0, slash_pos); } else { return ""; } } /** * Return file name of a full filename (i.e. file name without path). */ std::string cmSystemTools::GetFilenameName(const std::string& filename) { std::string fn = filename; cmSystemTools::ConvertToUnixSlashes(fn); std::string::size_type slash_pos = fn.rfind("/"); if(slash_pos != std::string::npos) { return fn.substr(slash_pos + 1); } else { return filename; } } /** * Return file extension of a full filename (dot included). * Warning: this is the longest extension (for example: .tar.gz) */ std::string cmSystemTools::GetFilenameExtension(const std::string& filename) { std::string name = cmSystemTools::GetFilenameName(filename); std::string::size_type dot_pos = name.find("."); if(dot_pos != std::string::npos) { return name.substr(dot_pos); } else { return ""; } } /** * Return file name without extension of a full filename (i.e. without path). * Warning: it considers the longest extension (for example: .tar.gz) */ std::string cmSystemTools::GetFilenameWithoutExtension(const std::string& filename) { std::string name = cmSystemTools::GetFilenameName(filename); std::string::size_type dot_pos = name.find("."); if(dot_pos != std::string::npos) { return name.substr(0, dot_pos); } else { return name; } } void cmSystemTools::Glob(const char *directory, const char *regexp, std::vector& files) { cmDirectory d; cmRegularExpression reg(regexp); if (d.Load(directory)) { size_t numf; unsigned int i; 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& files) { std::string path = fullPath; 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); cmDirectory d; if (d.Load(startPath.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 = startPath; fname +="/"; fname += d.GetFile(i); if(cmSystemTools::FileIsDirectory(fname.c_str())) { fname += finishPath; cmSystemTools::GlobDirs(fname.c_str(), files); } } } } } void cmSystemTools::ExpandListArguments(std::vector const& arguments, std::vector& newargs) { std::vector::const_iterator i; std::string newarg; for(i = arguments.begin();i != arguments.end(); ++i) { // if there are no ; in the name then just copy the current string if(i->find(';') == std::string::npos) { newargs.push_back(*i); } else { std::string::size_type start = 0; std::string::size_type endpos = 0; const std::string::size_type size = i->size(); // break up ; separated sections of the string into separate strings while(endpos != size) { endpos = i->find(';', start); if(endpos == std::string::npos) { endpos = i->size(); } else { // skip right over escaped ; ( \; ) while((endpos != std::string::npos) && (endpos > 0) && ((*i)[endpos-1] == '\\') ) { endpos = i->find(';', endpos+1); } if(endpos == std::string::npos) { endpos = i->size(); } } std::string::size_type len = endpos - start; if (len > 0) { // check for a closing ] after the start position if(i->find('[', start) == std::string::npos) { // if there is no [ in the string then keep it newarg = i->substr(start, len); } else { int opencount = 0; int closecount = 0; for(std::string::size_type j = start; j < endpos; ++j) { if(i->at(j) == '[') { ++opencount; } else if (i->at(j) == ']') { ++closecount; } } if(opencount != closecount) { // skip this one endpos = i->find(';', endpos+1); if(endpos == std::string::npos) { endpos = i->size(); } len = endpos - start; } newarg = i->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::GetShortPath(const char* path, std::string& shortPath) { #if defined(WIN32) && !defined(__CYGWIN__) const int size = int(strlen(path)) +1; // size of return char *buffer = new char[size]; // create a buffer char *tempPath = new char[size]; // create a buffer int ret; // if the path passed in has quotes around it, first remove the quotes if (path[0] == '"' && path[strlen(path)-1] == '"') { strcpy(tempPath,path+1); tempPath[strlen(tempPath)-1] = '\0'; } else { strcpy(tempPath,path); } buffer[0] = 0; ret = GetShortPathName(tempPath, buffer, size); if(buffer[0] == 0 || ret > size) { if(ret < size) { 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 ); cmSystemTools::Error((LPCTSTR)lpMsgBuf); LocalFree( lpMsgBuf ); } cmSystemTools::Error("Unable to get a short path: ", path); delete [] tempPath; return false; } else { shortPath = buffer; delete [] buffer; delete [] tempPath; return true; } #else shortPath = path; return true; #endif }