-// sg_path.cxx -- routines to abstract out path separator differences\r
-// between MacOS and the rest of the world\r
-//\r
-// Written by Curtis L. Olson, started April 1999.\r
-//\r
-// Copyright (C) 1999 Curtis L. Olson - http://www.flightgear.org/~curt\r
-//\r
-// This library is free software; you can redistribute it and/or\r
-// modify it under the terms of the GNU Library General Public\r
-// License as published by the Free Software Foundation; either\r
-// version 2 of the License, or (at your option) any later version.\r
-//\r
-// This library is distributed in the hope that it will be useful,\r
-// but WITHOUT ANY WARRANTY; without even the implied warranty of\r
-// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU\r
-// Library General Public License for more details.\r
-//\r
-// You should have received a copy of the GNU General Public License\r
-// along with this program; if not, write to the Free Software\r
-// Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.\r
-//\r
-// $Id$\r
-\r
-\r
-#include <simgear/compiler.h>\r
-\r
-#include <simgear_config.h>\r
-#include <simgear/debug/logstream.hxx>\r
-#include <stdio.h>\r
-#include <sys/stat.h>\r
-#ifdef _WIN32\r
-# include <direct.h>\r
-#endif\r
-#include "sg_path.hxx"\r
-\r
-using std::string;\r
-\r
-\r
-/**\r
- * define directory path separators\r
- */\r
-\r
-static const char sgDirPathSep = '/';\r
-static const char sgDirPathSepBad = '\\';\r
-\r
-#ifdef _WIN32\r
-static const char sgSearchPathSep = ';';\r
-#else\r
-static const char sgSearchPathSep = ':';\r
-#endif\r
-\r
-\r
-// If Unix, replace all ":" with "/". In windoze, allow the\r
-// second character to be a ":" for things like c:\foo\bar\r
-\r
-void\r
-SGPath::fix()\r
-{\r
- for ( string::size_type i = 0; i < path.size(); ++i ) {\r
-#if defined( WIN32 )\r
- // for windoze, don't replace the ":" for the second character\r
- if ( i == 1 ) {\r
- continue;\r
- }\r
-#endif\r
- if ( path[i] == sgDirPathSepBad ) {\r
- path[i] = sgDirPathSep;\r
- }\r
- }\r
-}\r
-\r
-\r
-// default constructor\r
-SGPath::SGPath()\r
- : path(""),\r
- _cached(false)\r
-{\r
-}\r
-\r
-\r
-// create a path based on "path"\r
-SGPath::SGPath( const std::string& p )\r
- : path(p),\r
- _cached(false)\r
-{\r
- fix();\r
-}\r
-\r
-// create a path based on "path" and a "subpath"\r
-SGPath::SGPath( const SGPath& p, const std::string& r )\r
- : path(p.path),\r
- _cached(false)\r
-{\r
- append(r);\r
- fix();\r
-}\r
-\r
-SGPath::SGPath(const SGPath& p) :\r
- path(p.path),\r
- _cached(p._cached),\r
- _exists(p._exists),\r
- _isDir(p._isDir),\r
- _isFile(p._isFile)\r
-{\r
-}\r
- \r
-SGPath& SGPath::operator=(const SGPath& p)\r
-{\r
- path = p.path;\r
- _cached = p._cached;\r
- _exists = p._exists;\r
- _isDir = p._isDir;\r
- _isFile = p._isFile;\r
- return *this;\r
-}\r
-\r
-// destructor\r
-SGPath::~SGPath() {\r
-}\r
-\r
-\r
-// set path\r
-void SGPath::set( const string& p ) {\r
- path = p;\r
- fix();\r
- _cached = false;\r
-}\r
-\r
-\r
-// append another piece to the existing path\r
-void SGPath::append( const string& p ) {\r
- if ( path.size() == 0 ) {\r
- path = p;\r
- } else {\r
- if ( p[0] != sgDirPathSep ) {\r
- path += sgDirPathSep;\r
- }\r
- path += p;\r
- }\r
- fix();\r
- _cached = false;\r
-}\r
-\r
-//add a new path component to the existing path string\r
-void SGPath::add( const string& p ) {\r
- append( sgSearchPathSep+p );\r
-}\r
-\r
-\r
-// concatenate a string to the end of the path without inserting a\r
-// path separator\r
-void SGPath::concat( const string& p ) {\r
- if ( path.size() == 0 ) {\r
- path = p;\r
- } else {\r
- path += p;\r
- }\r
- fix();\r
- _cached = false;\r
-}\r
-\r
-\r
-// Get the file part of the path (everything after the last path sep)\r
-string SGPath::file() const {\r
- int index = path.rfind(sgDirPathSep);\r
- if (index >= 0) {\r
- return path.substr(index + 1);\r
- } else {\r
- return "";\r
- }\r
-}\r
- \r
-\r
-// get the directory part of the path.\r
-string SGPath::dir() const {\r
- int index = path.rfind(sgDirPathSep);\r
- if (index >= 0) {\r
- return path.substr(0, index);\r
- } else {\r
- return "";\r
- }\r
-}\r
-\r
-// get the base part of the path (everything but the extension.)\r
-string SGPath::base() const {\r
- int index = path.rfind(".");\r
- if ((index >= 0) && (path.find("/", index) == string::npos)) {\r
- return path.substr(0, index);\r
- } else {\r
- return "";\r
- }\r
-}\r
-\r
-// get the extension (everything after the final ".")\r
-// but make sure no "/" follows the "." character (otherwise it\r
-// is has to be a directory name containing a ".").\r
-string SGPath::extension() const {\r
- int index = path.rfind(".");\r
- if ((index >= 0) && (path.find("/", index) == string::npos)) {\r
- return path.substr(index + 1);\r
- } else {\r
- return "";\r
- }\r
-}\r
-\r
-void SGPath::validate() const\r
-{\r
- if (_cached) {\r
- return;\r
- }\r
- \r
-#ifdef _WIN32\r
- struct _stat buf ;\r
-\r
- bool remove_trailing = false;\r
- if ( path.length() > 1 && path[path.length()-1] == '/' )\r
- remove_trailing=true;\r
- if (_stat (path.substr(0,remove_trailing?path.length()-1:path.length()).c_str(), &buf ) < 0) {\r
- _exists = false;\r
- } else {\r
- _exists = true;\r
- _isFile = ((S_IFREG & buf.st_mode ) !=0);\r
- _isDir = ((S_IFDIR & buf.st_mode ) !=0);\r
- }\r
-\r
-#else\r
- struct stat buf ;\r
-\r
- if (stat(path.c_str(), &buf ) < 0) {\r
- _exists = false;\r
- } else {\r
- _exists = true;\r
- _isFile = ((S_ISREG(buf.st_mode )) != 0);\r
- _isDir = ((S_ISDIR(buf.st_mode )) != 0);\r
- }\r
- \r
-#endif\r
- _cached = true;\r
-}\r
-\r
-bool SGPath::exists() const\r
-{\r
- validate();\r
- return _exists;\r
-}\r
-\r
-bool SGPath::isDir() const\r
-{\r
- validate();\r
- return _exists && _isDir;\r
-}\r
-\r
-bool SGPath::isFile() const\r
-{\r
- validate();\r
- return _exists && _isFile;\r
-}\r
-\r
-#ifdef _WIN32\r
-# define sgMkDir(d,m) _mkdir(d)\r
-#else\r
-# define sgMkDir(d,m) mkdir(d,m)\r
-#endif\r
-\r
-\r
-int SGPath::create_dir( mode_t mode ) {\r
- string_list dirlist = sgPathSplit(dir());\r
- if ( dirlist.empty() )\r
- return -1;\r
- string path = dirlist[0];\r
- string_list path_elements = sgPathBranchSplit(path);\r
- bool absolute = !path.empty() && path[0] == sgDirPathSep;\r
-\r
- unsigned int i = 1;\r
- SGPath dir = absolute ? string( 1, sgDirPathSep ) : "";\r
- dir.concat( path_elements[0] );\r
-#ifdef _WIN32\r
- if ( dir.str().find(':') != string::npos && path_elements.size() >= 2 ) {\r
- dir.append( path_elements[1] );\r
- i = 2;\r
- }\r
-#endif\r
- struct stat info;\r
- int r;\r
- for(; ( r = stat( dir.c_str(), &info ) ) == 0 && i < path_elements.size(); i++) {\r
- dir.append(path_elements[i]);\r
- }\r
- if ( r == 0 ) {\r
- return 0; // Directory already exists\r
- }\r
- if ( sgMkDir( dir.c_str(), mode) ) {\r
- SG_LOG( SG_IO, SG_ALERT, "Error creating directory: " + dir.str() );\r
- return -2;\r
- }\r
- for(; i < path_elements.size(); i++) {\r
- dir.append(path_elements[i]);\r
- if ( sgMkDir( dir.c_str(), mode) ) {\r
- SG_LOG( SG_IO, SG_ALERT, "Error creating directory: " + dir.str() );\r
- return -2;\r
- }\r
- }\r
-\r
- return 0;\r
-}\r
-\r
-string_list sgPathBranchSplit( const string &dirpath ) {\r
- string_list path_elements;\r
- string element, path = dirpath;\r
- while ( path.size() ) {\r
- size_t p = path.find( sgDirPathSep );\r
- if ( p != string::npos ) {\r
- element = path.substr( 0, p );\r
- path.erase( 0, p + 1 );\r
- } else {\r
- element = path;\r
- path = "";\r
- }\r
- if ( element.size() )\r
- path_elements.push_back( element );\r
- }\r
- return path_elements;\r
-}\r
-\r
-\r
-string_list sgPathSplit( const string &search_path ) {\r
- string tmp = search_path;\r
- string_list result;\r
- result.clear();\r
-\r
- bool done = false;\r
-\r
- while ( !done ) {\r
- int index = tmp.find(sgSearchPathSep);\r
- if (index >= 0) {\r
- result.push_back( tmp.substr(0, index) );\r
- tmp = tmp.substr( index + 1 );\r
- } else {\r
- if ( !tmp.empty() )\r
- result.push_back( tmp );\r
- done = true;\r
- }\r
- }\r
-\r
- return result;\r
-}\r
-\r
-bool SGPath::isAbsolute() const\r
-{\r
- if (path.empty()) {\r
- return false;\r
- }\r
- \r
-#ifdef _WIN32\r
- // detect '[A-Za-z]:/'\r
- if (path.size() > 2) {\r
- if (isalpha(path[0]) && (path[1] == ':') && (path[2] == sgDirPathSep)) {\r
- return true;\r
- }\r
- }\r
-#endif\r
- \r
- return (path[0] == sgDirPathSep);\r
-}\r
-\r
-bool SGPath::isNull() const\r
-{\r
- return path.empty() || (path == "");\r
-}\r
+// sg_path.cxx -- routines to abstract out path separator differences
+// between MacOS and the rest of the world
+//
+// Written by Curtis L. Olson, started April 1999.
+//
+// Copyright (C) 1999 Curtis L. Olson - http://www.flightgear.org/~curt
+//
+// This library is free software; you can redistribute it and/or
+// modify it under the terms of the GNU Library General Public
+// License as published by the Free Software Foundation; either
+// version 2 of the License, or (at your option) any later version.
+//
+// This library is distributed in the hope that it will be useful,
+// but WITHOUT ANY WARRANTY; without even the implied warranty of
+// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+// Library General Public License for more details.
+//
+// You should have received a copy of the GNU General Public License
+// along with this program; if not, write to the Free Software
+// Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
+//
+// $Id$
+
+
+#include <simgear/compiler.h>
+
+#include <simgear_config.h>
+#include <simgear/debug/logstream.hxx>
+#include <stdio.h>
+#include <sys/stat.h>
+#include <errno.h>
+
+#ifdef _WIN32
+# include <direct.h>
+#endif
+#include "sg_path.hxx"
+
+#include <boost/algorithm/string/case_conv.hpp>
+
+using std::string;
+
+/**
+ * define directory path separators
+ */
+
+static const char sgDirPathSep = '/';
+static const char sgDirPathSepBad = '\\';
+
+#ifdef _WIN32
+static const char sgSearchPathSep = ';';
+#else
+static const char sgSearchPathSep = ':';
+#endif
+
+
+// For windows, replace "\" by "/".
+void
+SGPath::fix()
+{
+ string::size_type sz = path.size();
+ for ( string::size_type i = 0; i < sz; ++i ) {
+ if ( path[i] == sgDirPathSepBad ) {
+ path[i] = sgDirPathSep;
+ }
+ }
+ // drop trailing "/"
+ while ((sz>1)&&(path[sz-1]==sgDirPathSep))
+ {
+ path.resize(--sz);
+ }
+}
+
+
+// default constructor
+SGPath::SGPath()
+ : path(""),
+ _cached(false),
+ _cacheEnabled(true)
+{
+}
+
+
+// create a path based on "path"
+SGPath::SGPath( const std::string& p )
+ : path(p),
+ _cached(false),
+ _cacheEnabled(true)
+{
+ fix();
+}
+
+// create a path based on "path" and a "subpath"
+SGPath::SGPath( const SGPath& p, const std::string& r )
+ : path(p.path),
+ _cached(false),
+ _cacheEnabled(p._cacheEnabled)
+{
+ append(r);
+ fix();
+}
+
+SGPath::SGPath(const SGPath& p) :
+ path(p.path),
+ _cached(p._cached),
+ _cacheEnabled(p._cacheEnabled),
+ _exists(p._exists),
+ _isDir(p._isDir),
+ _isFile(p._isFile),
+ _modTime(p._modTime)
+{
+}
+
+SGPath& SGPath::operator=(const SGPath& p)
+{
+ path = p.path;
+ _cached = p._cached;
+ _cacheEnabled = p._cacheEnabled;
+ _exists = p._exists;
+ _isDir = p._isDir;
+ _isFile = p._isFile;
+ _modTime = p._modTime;
+ return *this;
+}
+
+// destructor
+SGPath::~SGPath() {
+}
+
+
+// set path
+void SGPath::set( const string& p ) {
+ path = p;
+ fix();
+ _cached = false;
+}
+
+void SGPath::set_cached(bool cached)
+{
+ _cacheEnabled = cached;
+}
+
+// append another piece to the existing path
+void SGPath::append( const string& p ) {
+ if ( path.size() == 0 ) {
+ path = p;
+ } else {
+ if ( p[0] != sgDirPathSep ) {
+ path += sgDirPathSep;
+ }
+ path += p;
+ }
+ fix();
+ _cached = false;
+}
+
+//add a new path component to the existing path string
+void SGPath::add( const string& p ) {
+ append( sgSearchPathSep+p );
+}
+
+
+// concatenate a string to the end of the path without inserting a
+// path separator
+void SGPath::concat( const string& p ) {
+ if ( path.size() == 0 ) {
+ path = p;
+ } else {
+ path += p;
+ }
+ fix();
+ _cached = false;
+}
+
+
+// Get the file part of the path (everything after the last path sep)
+string SGPath::file() const
+{
+ string::size_type index = path.rfind(sgDirPathSep);
+ if (index != string::npos) {
+ return path.substr(index + 1);
+ } else {
+ return path;
+ }
+}
+
+
+// get the directory part of the path.
+string SGPath::dir() const {
+ int index = path.rfind(sgDirPathSep);
+ if (index >= 0) {
+ return path.substr(0, index);
+ } else {
+ return "";
+ }
+}
+
+// get the base part of the path (everything but the extension.)
+string SGPath::base() const
+{
+ string::size_type index = path.rfind(".");
+ string::size_type lastSep = path.rfind(sgDirPathSep);
+
+// tolerate dots inside directory names
+ if ((lastSep != string::npos) && (index < lastSep)) {
+ return path;
+ }
+
+ if (index != string::npos) {
+ return path.substr(0, index);
+ } else {
+ return path;
+ }
+}
+
+string SGPath::file_base() const
+{
+ string::size_type index = path.rfind(sgDirPathSep);
+ if (index == string::npos) {
+ index = 0; // no separator in the name
+ } else {
+ ++index; // skip past the separator
+ }
+
+ string::size_type firstDot = path.find(".", index);
+ if (firstDot == string::npos) {
+ return path.substr(index); // no extensions
+ }
+
+ return path.substr(index, firstDot - index);
+}
+
+// get the extension (everything after the final ".")
+// but make sure no "/" follows the "." character (otherwise it
+// is has to be a directory name containing a ".").
+string SGPath::extension() const {
+ int index = path.rfind(".");
+ if ((index >= 0) && (path.find("/", index) == string::npos)) {
+ return path.substr(index + 1);
+ } else {
+ return "";
+ }
+}
+
+string SGPath::lower_extension() const {
+ return boost::to_lower_copy(extension());
+}
+
+string SGPath::complete_lower_extension() const
+{
+ string::size_type index = path.rfind(sgDirPathSep);
+ if (index == string::npos) {
+ index = 0; // no separator in the name
+ } else {
+ ++index; // skip past the separator
+ }
+
+ string::size_type firstDot = path.find(".", index);
+ if ((firstDot != string::npos) && (path.find(sgDirPathSep, firstDot) == string::npos)) {
+ return boost::to_lower_copy(path.substr(firstDot + 1));
+ } else {
+ return "";
+ }
+}
+
+void SGPath::validate() const
+{
+ if (_cached && _cacheEnabled) {
+ return;
+ }
+
+#ifdef _WIN32
+ struct _stat buf ;
+
+ bool remove_trailing = false;
+ if ( path.length() > 1 && path[path.length()-1] == '/' )
+ remove_trailing=true;
+ if (_stat (path.substr(0,remove_trailing?path.length()-1:path.length()).c_str(), &buf ) < 0) {
+ _exists = false;
+ } else {
+ _exists = true;
+ _isFile = ((S_IFREG & buf.st_mode ) !=0);
+ _isDir = ((S_IFDIR & buf.st_mode ) !=0);
+ _modTime = buf.st_mtime;
+ }
+
+#else
+ struct stat buf ;
+
+ if (stat(path.c_str(), &buf ) < 0) {
+ _exists = false;
+ } else {
+ _exists = true;
+ _isFile = ((S_ISREG(buf.st_mode )) != 0);
+ _isDir = ((S_ISDIR(buf.st_mode )) != 0);
+ _modTime = buf.st_mtime;
+ }
+
+#endif
+ _cached = true;
+}
+
+bool SGPath::exists() const
+{
+ validate();
+ return _exists;
+}
+
+bool SGPath::isDir() const
+{
+ validate();
+ return _exists && _isDir;
+}
+
+bool SGPath::isFile() const
+{
+ validate();
+ return _exists && _isFile;
+}
+
+#ifdef _WIN32
+# define sgMkDir(d,m) _mkdir(d)
+#else
+# define sgMkDir(d,m) mkdir(d,m)
+#endif
+
+
+int SGPath::create_dir( mode_t mode ) {
+ string_list dirlist = sgPathSplit(dir());
+ if ( dirlist.empty() )
+ return -1;
+ string path = dirlist[0];
+ string_list path_elements = sgPathBranchSplit(path);
+ bool absolute = !path.empty() && path[0] == sgDirPathSep;
+
+ unsigned int i = 1;
+ SGPath dir = absolute ? string( 1, sgDirPathSep ) : "";
+ dir.concat( path_elements[0] );
+#ifdef _WIN32
+ if ( dir.str().find(':') != string::npos && path_elements.size() >= 2 ) {
+ dir.append( path_elements[1] );
+ i = 2;
+ }
+#endif
+ struct stat info;
+ int r;
+ for(; ( r = stat( dir.c_str(), &info ) ) == 0 && i < path_elements.size(); i++) {
+ dir.append(path_elements[i]);
+ }
+ if ( r == 0 ) {
+ return 0; // Directory already exists
+ }
+ if ( sgMkDir( dir.c_str(), mode) ) {
+ SG_LOG( SG_IO, SG_ALERT, "Error creating directory: " + dir.str() );
+ return -2;
+ }
+ for(; i < path_elements.size(); i++) {
+ dir.append(path_elements[i]);
+ if ( sgMkDir( dir.c_str(), mode) ) {
+ SG_LOG( SG_IO, SG_ALERT, "Error creating directory: " + dir.str() );
+ return -2;
+ }
+ }
+
+ return 0;
+}
+
+string_list sgPathBranchSplit( const string &dirpath ) {
+ string_list path_elements;
+ string element, path = dirpath;
+ while ( path.size() ) {
+ size_t p = path.find( sgDirPathSep );
+ if ( p != string::npos ) {
+ element = path.substr( 0, p );
+ path.erase( 0, p + 1 );
+ } else {
+ element = path;
+ path = "";
+ }
+ if ( element.size() )
+ path_elements.push_back( element );
+ }
+ return path_elements;
+}
+
+
+string_list sgPathSplit( const string &search_path ) {
+ string tmp = search_path;
+ string_list result;
+ result.clear();
+
+ bool done = false;
+
+ while ( !done ) {
+ int index = tmp.find(sgSearchPathSep);
+ if (index >= 0) {
+ result.push_back( tmp.substr(0, index) );
+ tmp = tmp.substr( index + 1 );
+ } else {
+ if ( !tmp.empty() )
+ result.push_back( tmp );
+ done = true;
+ }
+ }
+
+ return result;
+}
+
+bool SGPath::isAbsolute() const
+{
+ if (path.empty()) {
+ return false;
+ }
+
+#ifdef _WIN32
+ // detect '[A-Za-z]:/'
+ if (path.size() > 2) {
+ if (isalpha(path[0]) && (path[1] == ':') && (path[2] == sgDirPathSep)) {
+ return true;
+ }
+ }
+#endif
+
+ return (path[0] == sgDirPathSep);
+}
+
+bool SGPath::isNull() const
+{
+ return path.empty() || (path == "");
+}
+
+std::string SGPath::str_native() const
+{
+#ifdef _WIN32
+ std::string s = str();
+ std::string::size_type pos;
+ std::string nativeSeparator;
+ nativeSeparator = sgDirPathSepBad;
+
+ while( (pos=s.find( sgDirPathSep )) != std::string::npos ) {
+ s.replace( pos, 1, nativeSeparator );
+ }
+ return s;
+#else
+ return str();
+#endif
+}
+
+bool SGPath::remove()
+{
+ int err = ::unlink(c_str());
+ if (err) {
+ SG_LOG(SG_IO, SG_WARN, "file remove failed: (" << str() << ") " << strerror(errno));
+ }
+ return (err == 0);
+}
+
+time_t SGPath::modTime() const
+{
+ validate();
+ return _modTime;
+}
+
+bool SGPath::operator==(const SGPath& other) const
+{
+ return (path == other.path);
+}
+
+bool SGPath::operator!=(const SGPath& other) const
+{
+ return (path != other.path);
+}
+
+bool SGPath::rename(const SGPath& newName)
+{
+ if (::rename(c_str(), newName.c_str()) != 0) {
+ SG_LOG(SG_IO, SG_WARN, "renamed failed: from " << str() << " to " << newName.str()
+ << " reason: " << strerror(errno));
+ return false;
+ }
+
+ path = newName.path;
+ _cached = false;
+ return true;
+}
+
+std::string SGPath::realpath() const
+{
+#ifdef _WIN32
+ // Not implemented for Windows yet. Return original path instead.
+ return path;
+#else
+ char* buf = ::realpath(path.c_str(), NULL);
+ if (!buf)
+ {
+ SG_LOG(SG_IO, SG_ALERT, "ERROR: The path '" << path << "' does not exist in the file system.");
+ return path;
+ }
+ std::string p(buf);
+ free(buf);
+ return p;
+#endif
+}
+
projects / simgear.git / blobdiff