/*========================================================================= 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" // support for realpath call #ifndef _WIN32 #include #include #include #endif #if defined(_MSC_VER) || defined(__BORLANDC__) #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 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 + lengthReplace ); } } #if defined(_WIN32) && !defined(__CYGWIN__) // Get the data of key 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 bool ReadAValue(std::string &res, const char *key) { // find the primary 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_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) { res = data; return true; } } } return false; } #endif // replace replace with with as many times as it shows up in source. // write the result into source. void cmSystemTools::ExpandRegistryValues(std::string& source) { #if defined(_WIN32) && !defined(__CYGWIN__) // 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 (ReadAValue(val,key.c_str())) { 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"); } } #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) { 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; } // 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; } 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 ) ) { 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 black line or comment if(blankLine.find(inbuffer) || comment.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 ) ) { // Check for comment lines and ignore them. if(blankLine.find(inbuffer) || comment.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; long endpos; 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; 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; } std::ifstream finSource(source); std::ifstream finDestination(destination); if(!finSource || !finDestination) { return true; } const int buffer_length = 4096; char bufferSource[buffer_length]; char bufferDest[buffer_length]; while(finSource && finDestination) { if(finSource.getline(bufferSource, buffer_length, '\n') || finSource.gcount()) { if(finDestination.getline(bufferDest, buffer_length, '\n') || finDestination.gcount()) { // both if statements passed if(finSource.eof()) { if(!finDestination.eof()) { return true; } if(finSource.gcount() != finDestination.gcount()) { return true; } if(strncmp(bufferSource, bufferDest, finSource.gcount()) != 0) { return true; } } else if(finSource.fail()) { if(!finDestination.fail()) { return true; } if(strcmp(bufferSource, bufferDest) != 0) { return true; } finSource.clear(finSource.rdstate() & ~std::ios::failbit); finDestination.clear(finDestination.rdstate() & ~std::ios::failbit); } else { if(strcmp(bufferSource, bufferDest) != 0) { return true; } } } else { return true; } } } return false; } /** * 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]; std::ifstream fin(source, #ifdef _WIN32 std::ios::binary | #endif std::ios::in); if(!fin) { cmSystemTools::Error("CopyFile failed to open input file \"", source, "\""); return; } std::ofstream fout(destination, #ifdef _WIN32 std::ios::binary | #endif std::ios::out | std::ios::trunc); 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()); } } } // 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, bool verbose) { int foo; return cmSystemTools::RunCommand(command, output, foo, verbose); } bool cmSystemTools::RunCommand(const char* command, std::string& output, int &retVal, bool verbose) { const int BUFFER_SIZE = 4096; char buffer[BUFFER_SIZE]; if(s_DisableRunCommandOutput) { verbose = false; } #if defined(WIN32) && !defined(__CYGWIN__) 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; } while(fin) { fin.getline(buffer, BUFFER_SIZE); output += buffer; } fin.close(); cmSystemTools::RemoveFile(tempFile.c_str()); return true; #else if(verbose) { std::cout << "running " << command << std::endl; } 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); return true; #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) { // 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; 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()); } 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) { // 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); 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 extension of a full filename (dot included). */ std::string cmSystemTools::GetFilenameShortestExtension(const std::string& filename) { std::string name = cmSystemTools::GetFilenameName(filename); std::string::size_type dot_pos = name.rfind("."); 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::GetFilenameNameWithoutExtension(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)) { int i, numf; 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 (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); } } } } }