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CMake/Source/kwsys/SystemTools.hxx.in

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/*=========================================================================
Program: KWSys - Kitware System Library
Module: $RCSfile$
Copyright (c) Kitware, Inc., Insight Consortium. All rights reserved.
See Copyright.txt or http://www.kitware.com/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.
=========================================================================*/
#ifndef @KWSYS_NAMESPACE@_SystemTools_hxx
#define @KWSYS_NAMESPACE@_SystemTools_hxx
#include <@KWSYS_NAMESPACE@/ios/iosfwd>
#include <@KWSYS_NAMESPACE@/stl/string>
#include <@KWSYS_NAMESPACE@/stl/vector>
#include <@KWSYS_NAMESPACE@/stl/map>
#include <@KWSYS_NAMESPACE@/Configure.h>
#include <sys/types.h>
#include <stdarg.h>
#if defined( _MSC_VER )
typedef unsigned short mode_t;
#endif
/* Define these macros temporarily to keep the code readable. */
#if !defined (KWSYS_NAMESPACE) && !@KWSYS_NAMESPACE@_NAME_IS_KWSYS
# define kwsys_stl @KWSYS_NAMESPACE@_stl
# define kwsys_ios @KWSYS_NAMESPACE@_ios
#endif
namespace @KWSYS_NAMESPACE@
{
class SystemToolsTranslationMap;
class @KWSYS_NAMESPACE@_EXPORT SystemToolsManager
{
public:
SystemToolsManager();
~SystemToolsManager();
};
// This instance will show up in any translation unit that uses
// SystemTools. It will make sure SystemTools is initialized
// before it is used and is the last static object destroyed.
static SystemToolsManager SystemToolsManagerInstance;
/** \class SystemTools
* \brief A collection of useful platform-independent system functions.
*/
class @KWSYS_NAMESPACE@_EXPORT SystemTools
{
public:
/** -----------------------------------------------------------------
* String Manipulation Routines
* -----------------------------------------------------------------
*/
/**
* Replace symbols in str that are not valid in C identifiers as
* defined by the 1999 standard, ie. anything except [A-Za-z0-9_].
* They are replaced with `_' and if the first character is a digit
* then an underscore is prepended. Note that this can produce
* identifiers that the standard reserves (_[A-Z].* and __.*).
*/
static kwsys_stl::string MakeCindentifier(const char* s);
/**
* Replace replace all occurences of the string in the source string.
*/
static void ReplaceString(kwsys_stl::string& source,
const char* replace,
const char* with);
/**
* Return a capitalized string (i.e the first letter is uppercased,
* all other are lowercased).
*/
static kwsys_stl::string Capitalized(const kwsys_stl::string&);
/**
* Return a 'capitalized words' string (i.e the first letter of each word
* is uppercased all other are left untouched though).
*/
static kwsys_stl::string CapitalizedWords(const kwsys_stl::string&);
/**
* Return a 'uncapitalized words' string (i.e the first letter of each word
* is lowercased all other are left untouched though).
*/
static kwsys_stl::string UnCapitalizedWords(const kwsys_stl::string&);
/**
* Return a lower case string
*/
static kwsys_stl::string LowerCase(const kwsys_stl::string&);
/**
* Return a lower case string
*/
static kwsys_stl::string UpperCase(const kwsys_stl::string&);
/**
* Count char in string
*/
static size_t CountChar(const char* str, char c);
/**
* Remove some characters from a string.
* Return a pointer to the new resulting string (allocated with 'new')
*/
static char* RemoveChars(const char* str, const char *toremove);
/**
* Remove remove all but 0->9, A->F characters from a string.
* Return a pointer to the new resulting string (allocated with 'new')
*/
static char* RemoveCharsButUpperHex(const char* str);
/**
* Replace some characters by another character in a string (in-place)
* Return a pointer to string
*/
static char* ReplaceChars(char* str, const char *toreplace,char replacement);
/**
* Returns true if str1 starts (respectively ends) with str2
*/
static bool StringStartsWith(const char* str1, const char* str2);
static bool StringEndsWith(const char* str1, const char* str2);
/**
* Returns a pointer to the last occurence of str2 in str1
*/
static const char* FindLastString(const char* str1, const char* str2);
/**
* Make a duplicate of the string similar to the strdup C function
* but use new to create the 'new' string, so one can use
* 'delete' to remove it. Returns 0 if the input is empty.
*/
static char* DuplicateString(const char* str);
/**
* Return the string cropped to a given length by removing chars in the
* center of the string and replacing them with an ellipsis (...)
*/
static kwsys_stl::string CropString(const kwsys_stl::string&,size_t max_len);
/**
* Perform a case-independent string comparison
*/
static int Strucmp(const char *s1, const char *s2);
/**
* Convert a string in __DATE__ or __TIMESTAMP__ format into a time_t.
* Return false on error, true on success
*/
static bool ConvertDateMacroString(const char *str, time_t *tmt);
static bool ConvertTimeStampMacroString(const char *str, time_t *tmt);
/**
* Split a string on its newlines into multiple lines
* Return false only if the last line stored had no newline
*/
static bool Split(const char* s, kwsys_stl::vector<kwsys_stl::string>& l);
/**
* Return string with space added between capitalized words
* (i.e. EatMyShorts becomes Eat My Shorts
*/
static kwsys_stl::string AddSpaceBetweenCapitalizedWords(
const kwsys_stl::string&);
/**
* Append two or more strings and produce new one.
* Programmer must 'delete []' the resulting string, which was allocated
* with 'new'.
* Return 0 if inputs are empty or there was an error
*/
static char* AppendStrings(
const char* str1, const char* str2);
static char* AppendStrings(
const char* str1, const char* str2, const char* str3);
/**
* Estimate the length of the string that will be produced
* from printing the given format string and arguments. The
* returned length will always be at least as large as the string
* that will result from printing.
* WARNING: since va_arg is called to iterate of the argument list,
* you will not be able to use this 'ap' anymore from the beginning.
* It's up to you to call va_end though.
*/
static int EstimateFormatLength(const char *format, va_list ap);
/** -----------------------------------------------------------------
* Filename Manipulation Routines
* -----------------------------------------------------------------
*/
/**
* Replace Windows file system slashes with Unix-style slashes.
*/
static void ConvertToUnixSlashes(kwsys_stl::string& path);
/**
* For windows this calls ConvertToWindowsOutputPath and for unix
* it calls ConvertToUnixOutputPath
*/
static kwsys_stl::string ConvertToOutputPath(const char*);
/**
* Return true if a file exists in the current directory
*/
static bool FileExists(const char* filename);
/**
* Return file length
*/
static unsigned long FileLength(const char *filename);
/**
* Compare file modification times.
* Return true for successful comparison and false for error.
* When true is returned, result has -1, 0, +1 for
* f1 older, same, or newer than f2.
*/
static bool FileTimeCompare(const char* f1, const char* f2,
int* result);
/**
* Get the file extension (including ".") needed for an executable
* on the current platform ("" for unix, ".exe" for Windows).
*/
static const char* GetExecutableExtension();
/**
* Given a path that exists on a windows machine, return the
* actuall case of the path as it was created. If the file
* does not exist path is returned unchanged. This does nothing
* on unix but return path.
*/
static kwsys_stl::string GetActualCaseForPath(const char* 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.
*/
static kwsys_stl::string GetProgramPath(const char*);
static bool SplitProgramPath(const char* in_name,
kwsys_stl::string& dir,
kwsys_stl::string& file,
bool errorReport = true);
/**
* Given argv[0] for a unix program find the full path to a running
* executable. argv0 can be null for windows WinMain programs
* in this case GetModuleFileName will be used to find the path
* to the running executable. If argv0 is not a full path,
* then this will try to find the full path. If the path is not
* found false is returned, if found true is returned. An error
* message of the attempted paths is stored in errorMsg.
* exeName is the name of the executable.
* buildDir is a possibly null path to the build directory.
* installPrefix is a possibly null pointer to the install directory.
*/
static bool FindProgramPath(const char* argv0,
kwsys_stl::string& pathOut,
kwsys_stl::string& errorMsg,
const char* exeName = 0,
const char* buildDir = 0,
const char* installPrefix = 0);
/**
* Given a path to a file or directory, convert it to a full path.
* This collapses away relative paths relative to the cwd argument
* (which defaults to the current working directory). The full path
* is returned.
*/
static kwsys_stl::string CollapseFullPath(const char* in_relative);
static kwsys_stl::string CollapseFullPath(const char* in_relative,
const char* in_base);
/**
* Split a path name into its basic components. The first component
* is one of the following roots:
* "/" = UNIX
* "c:/" = Windows full path (can be any drive letter)
* "c:" = Windows drive-letter relative path (can be any drive letter)
* "//" = Network path
* "" = Relative path
* The remaining components form the path. If there is a trailing
* slash then the last component is the empty string. The
* components can be recombined as "c[0]c[1]/c[2]/.../c[n]" to
* produce the original path.
*/
static void SplitPath(const char* p,
kwsys_stl::vector<kwsys_stl::string>& components);
/**
* Join components of a path name into a single string. See
* SplitPath for the format of the components.
*/
static kwsys_stl::string JoinPath(
const kwsys_stl::vector<kwsys_stl::string>& components);
/**
* Compare a path or components of a path.
*/
static bool ComparePath(const char* c1, const char* c2);
/**
* Return path of a full filename (no trailing slashes)
*/
static kwsys_stl::string GetFilenamePath(const kwsys_stl::string&);
/**
* Return file name of a full filename (i.e. file name without path)
*/
static kwsys_stl::string GetFilenameName(const kwsys_stl::string&);
/**
* Split a program from its arguments and handle spaces in the paths
*/
static void SplitProgramFromArgs(
const char* path,
kwsys_stl::string& program, kwsys_stl::string& args);
/**
* Return longest file extension of a full filename (dot included)
*/
static kwsys_stl::string GetFilenameExtension(const kwsys_stl::string&);
/**
* Return shortest file extension of a full filename (dot included)
*/
static kwsys_stl::string GetFilenameLastExtension(
const kwsys_stl::string& filename);
/**
* Return file name without extension of a full filename
*/
static kwsys_stl::string GetFilenameWithoutExtension(
const kwsys_stl::string&);
/**
* Return file name without its last (shortest) extension
*/
static kwsys_stl::string GetFilenameWithoutLastExtension(
const kwsys_stl::string&);
/**
* Return whether the path represents a full path (not relative)
*/
static bool FileIsFullPath(const char*);
/**
* For windows return the short path for the given path,
* Unix just a pass through
*/
static bool GetShortPath(const char* path, kwsys_stl::string& result);
/**
* Read line from file. Make sure to get everything. Due to a buggy stream
* library on the HP and another on Mac OSX, we need this very carefully
* written version of getline. Returns true if any data were read before the
* end-of-file was reached. If the has_newline argument is specified, it will
* be true when the line read had a newline character.
*/
static bool GetLineFromStream(kwsys_ios::istream& istr,
kwsys_stl::string& line,
bool* has_newline=0);
/**
* Get the parent directory of the directory or file
*/
static kwsys_stl::string GetParentDirectory(const char* fileOrDir);
/**
* Check if the given file or directory is in subdirectory of dir
*/
static bool IsSubDirectory(const char* fileOrDir, const char* dir);
/** -----------------------------------------------------------------
* File Manipulation Routines
* -----------------------------------------------------------------
*/
/**
* Make a new directory if it is not there. This function
* can make a full path even if none of the directories existed
* prior to calling this function.
*/
static bool MakeDirectory(const char* path);
/**
* Copy the source file to the destination file only
* if the two files differ.
*/
static bool CopyFileIfDifferent(const char* source,
const char* destination);
/**
* Compare the contents of two files. Return true if different
*/
static bool FilesDiffer(const char* source, const char* destination);
/**
* Return true if the two files are the same file
*/
static bool SameFile(const char* file1, const char* file2);
/**
* Copy a file
*/
static bool CopyFileAlways(const char* source, const char* destination);
/**
* Copy content directory to another directory with all files and
* subdirectories
*/
static bool CopyADirectory(const char* source, const char* destination);
/**
* Remove a file
*/
static bool RemoveFile(const char* source);
/**
* Remove a directory
*/
static bool RemoveADirectory(const char* source);
/**
* Find a file in the system PATH, with optional extra paths
*/
static kwsys_stl::string FindFile(
const char* name,
const kwsys_stl::vector<kwsys_stl::string>& path =
kwsys_stl::vector<kwsys_stl::string>());
/**
* Find an executable in the system PATH, with optional extra paths
*/
static kwsys_stl::string FindProgram(
const char* name,
const kwsys_stl::vector<kwsys_stl::string>& path =
kwsys_stl::vector<kwsys_stl::string>(),
bool no_system_path = false);
/**
* Find a library in the system PATH, with optional extra paths
*/
static kwsys_stl::string FindLibrary(
const char* name,
const kwsys_stl::vector<kwsys_stl::string>& path);
/**
* Return true if the file is a directory
*/
static bool FileIsDirectory(const char* name);
/**
* return true if the file has a given signature (first set of bytes)
*/
static bool FileHasSignature(
const char* filename, const char *signature, long offset = 0);
/**
* Try to locate the file 'filename' in the directory 'dir'.
* If 'filename' is a fully qualified filename, the basename of the file is
* used to check for its existence in 'dir'.
* If 'dir' is not a directory, GetFilenamePath() is called on 'dir' to
* get its directory first (thus, you can pass a filename as 'dir', as
* a convenience).
* 'filename_found' is assigned the fully qualified name/path of the file
* if it is found (not touched otherwise).
* If 'try_filename_dirs' is true, try to find the file using the
* components of its path, i.e. if we are looking for c:/foo/bar/bill.txt,
* first look for bill.txt in 'dir', then in 'dir'/bar, then in 'dir'/foo/bar
* etc.
* Return true if the file was found, false otherwise.
*/
static bool LocateFileInDir(const char *filename,
const char *dir,
kwsys_stl::string& filename_found,
int try_filename_dirs = 0);
/**
* Check if the given file exists in one of the parent directory of the
* given file or directory and if it does, return the name of the file.
* Toplevel specifies the top-most directory to where it will look.
*/
static kwsys_stl::string FileExistsInParentDirectories(const char* fname,
const char* directory, const char* toplevel);
/**
* Return file's modified time
*/
static long int ModifiedTime(const char* filename);
/**
* Return file's creation time (Win32: works only for NTFS, not FAT)
*/
static long int CreationTime(const char* filename);
/**
* Get and set permissions of the file.
*/
static bool GetPermissions(const char* file, mode_t& mode);
static bool SetPermissions(const char* file, mode_t mode);
/** -----------------------------------------------------------------
* Time Manipulation Routines
* -----------------------------------------------------------------
*/
/**
* Get current time as a double. On certain platforms this will
* return higher resolution than seconds:
* (1) gettimeofday() -- resolution in microseconds
* (2) ftime() -- resolution in milliseconds
* (3) time() -- resolution in seconds
*/
static double GetTime();
/**
* Get current date/time
*/
static kwsys_stl::string GetCurrentDateTime(const char* format);
/** -----------------------------------------------------------------
* Registry Manipulation Routines
* -----------------------------------------------------------------
*/
/**
* Read a registry value
*/
static bool ReadRegistryValue(const char *key, kwsys_stl::string &value);
/**
* Write a registry value
*/
static bool WriteRegistryValue(const char *key, const char *value);
/**
* Delete a registry value
*/
static bool DeleteRegistryValue(const char *key);
/** -----------------------------------------------------------------
* Environment Manipulation Routines
* -----------------------------------------------------------------
*/
/**
* Add the paths from the environment variable PATH to the
* string vector passed in. If env is set then the value
* of env will be used instead of PATH.
*/
static void GetPath(kwsys_stl::vector<kwsys_stl::string>& path,
const char* env=0);
/**
* Read an environment variable
*/
static const char* GetEnv(const char* key);
static bool GetEnv(const char* key, kwsys_stl::string& result);
/**
* Get current working directory CWD
*/
static kwsys_stl::string GetCurrentWorkingDirectory();
/**
* Change directory the the directory specified
*/
static int ChangeDirectory(const char* dir);
/**
* Get the result of strerror(errno)
*/
static kwsys_stl::string GetLastSystemError();
/**
* When building DEBUG with MSVC, this enables a hook that prevents
* error dialogs from popping up if the program is being run from
* DART.
*/
static void EnableMSVCDebugHook();
/**
* Get the width of the terminal window. The code may or may not work, so
* make sure you have some resonable defaults prepared if the code returns
* some bogus size.
*/
static int GetTerminalWidth();
/**
* Add an entry in the path translation table.
*/
static void AddTranslationPath(const char * dir, const char * refdir);
/**
* If dir is different after CollapseFullPath is called,
* Then insert it into the path translation table
*/
static void AddKeepPath(const char* dir);
/**
* Update path by going through the Path Translation table;
*/
static void CheckTranslationPath(kwsys_stl::string & path);
/**
* Delay the execution for a specified amount of time specified
* in miliseconds
*/
static void Delay(unsigned int msec);
protected:
// these two functions can be called from ConvertToOutputPath
/**
* Convert the path to a string that can be used in a unix makefile.
* double slashes are removed, and spaces are escaped.
*/
static kwsys_stl::string ConvertToUnixOutputPath(const char*);
/**
* Convert the path to string that can be used in a windows project or
* makefile. Double slashes are removed if they are not at the start of
* the string, the slashes are converted to windows style backslashes, and
* if there are spaces in the string it is double quoted.
*/
static kwsys_stl::string ConvertToWindowsOutputPath(const char*);
private:
/**
* Allocate the std::map that serve as the Path Translation table.
*/
static void ClassInitialize();
/**
* Deallocate the std::map that serve as the Path Translation table.
*/
static void ClassFinalize();
/**
* This method prevents warning on SGI
*/
SystemToolsManager* GetSystemToolsManager()
{
return &SystemToolsManagerInstance;
}
/**
* Path translation table from dir to refdir
* Each time 'dir' will be found it will be replace by 'refdir'
*/
static SystemToolsTranslationMap *TranslationMap;
friend class SystemToolsManager;
};
} // namespace @KWSYS_NAMESPACE@
/* Undefine temporary macros. */
#if !defined (KWSYS_NAMESPACE) && !@KWSYS_NAMESPACE@_NAME_IS_KWSYS
# undef kwsys_stl
# undef kwsys_ios
#endif
#endif
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