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Diffstat (limited to 'Source/cmSystemTools.h')
| -rw-r--r-- | Source/cmSystemTools.h | 485 |
1 files changed, 485 insertions, 0 deletions
diff --git a/Source/cmSystemTools.h b/Source/cmSystemTools.h new file mode 100644 index 0000000..f5be26b --- /dev/null +++ b/Source/cmSystemTools.h @@ -0,0 +1,485 @@ +/*============================================================================ + CMake - Cross Platform Makefile Generator + Copyright 2000-2009 Kitware, Inc., Insight Software Consortium + + Distributed under the OSI-approved BSD License (the "License"); + see accompanying file Copyright.txt for details. + + This software is distributed WITHOUT ANY WARRANTY; without even the + implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. + See the License for more information. +============================================================================*/ +#ifndef cmSystemTools_h +#define cmSystemTools_h + +#include "cmStandardIncludes.h" + +#include <cmsys/SystemTools.hxx> +#include <cmsys/Process.h> + +class cmSystemToolsFileTime; + +/** \class cmSystemTools + * \brief A collection of useful functions for CMake. + * + * cmSystemTools is a class that provides helper functions + * for the CMake build system. + */ +class cmSystemTools: public cmsys::SystemTools +{ +public: + typedef cmsys::SystemTools Superclass; + + /** Expand out any arguments in the vector that have ; separated + * strings into multiple arguments. A new vector is created + * containing the expanded versions of all arguments in argsIn. + */ + static void ExpandList(std::vector<std::string> const& argsIn, + std::vector<std::string>& argsOut); + static void ExpandListArgument(const std::string& arg, + std::vector<std::string>& argsOut, + bool emptyArgs=false); + + /** + * Look for and replace registry values in a string + */ + static void ExpandRegistryValues(std::string& source, + KeyWOW64 view = KeyWOW64_Default); + + ///! Escape quotes in a string. + static std::string EscapeQuotes(const char* str); + + /** + * Returns a string that has whitespace removed from the start and the end. + */ + static std::string TrimWhitespace(const std::string& s); + + typedef void (*ErrorCallback)(const char*, const char*, bool&, void*); + /** + * Set the function used by GUIs to display error messages + * Function gets passed: message as a const char*, + * title as a const char*, and a reference to bool that when + * set to false, will disable furthur messages (cancel). + */ + static void SetErrorCallback(ErrorCallback f, void* clientData=0); + + /** + * Display an error message. + */ + static void Error(const char* m, const char* m2=0, + const char* m3=0, const char* m4=0); + + /** + * Display a message. + */ + static void Message(const char* m, const char* title=0); + + ///! Send a string to stdout + static void Stdout(const char* s); + static void Stdout(const char* s, int length); + typedef void (*StdoutCallback)(const char*, int length, void*); + static void SetStdoutCallback(StdoutCallback, void* clientData=0); + + ///! Send a string to stderr. Stdout callbacks will not be invoced. + static void Stderr(const char* s, int length); + + + typedef bool (*InterruptCallback)(void*); + static void SetInterruptCallback(InterruptCallback f, void* clientData=0); + static bool GetInterruptFlag(); + + ///! Return true if there was an error at any point. + static bool GetErrorOccuredFlag() + { + return cmSystemTools::s_ErrorOccured || + cmSystemTools::s_FatalErrorOccured || + GetInterruptFlag(); + } + ///! If this is set to true, cmake stops processing commands. + static void SetFatalErrorOccured() + { + cmSystemTools::s_FatalErrorOccured = true; + } + static void SetErrorOccured() + { + cmSystemTools::s_ErrorOccured = true; + } + ///! Return true if there was an error at any point. + static bool GetFatalErrorOccured() + { + return cmSystemTools::s_FatalErrorOccured || GetInterruptFlag(); + } + + ///! Set the error occured flag and fatal error back to false + static void ResetErrorOccuredFlag() + { + cmSystemTools::s_FatalErrorOccured = false; + cmSystemTools::s_ErrorOccured = false; + } + + /** + * Does a string indicates that CMake/CPack/CTest internally + * forced this value. This is not the same as On, but this + * may be considered as "internally switched on". + */ + static bool IsInternallyOn(const char* val); + /** + * does a string indicate a true or on value ? This is not the same + * as ifdef. + */ + static bool IsOn(const char* val); + + /** + * does a string indicate a false or off value ? Note that this is + * not the same as !IsOn(...) because there are a number of + * ambiguous values such as "/usr/local/bin" a path will result in + * IsON and IsOff both returning false. Note that the special path + * NOTFOUND, *-NOTFOUND or IGNORE will cause IsOff to return true. + */ + static bool IsOff(const char* val); + + ///! Return true if value is NOTFOUND or ends in -NOTFOUND. + static bool IsNOTFOUND(const char* value); + ///! Return true if the path is a framework + static bool IsPathToFramework(const char* value); + + static bool DoesFileExistWithExtensions( + const char *name, + const std::vector<std::string>& sourceExts); + + /** + * 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 std::string FileExistsInParentDirectories(const char* fname, + const char* directory, const char* toplevel); + + static void Glob(const char *directory, const char *regexp, + std::vector<std::string>& files); + static void GlobDirs(const char *fullPath, std::vector<std::string>& files); + + /** + * Try to find a list of files that match the "simple" globbing + * expression. At this point in time the globbing expressions have + * to be in form: /directory/partial_file_name*. The * character has + * to be at the end of the string and it does not support ? + * []... The optional argument type specifies what kind of files you + * want to find. 0 means all files, -1 means directories, 1 means + * files only. This method returns true if search was succesfull. + */ + static bool SimpleGlob(const cmStdString& glob, + std::vector<cmStdString>& files, + int type = 0); + + ///! Copy a file. + static bool cmCopyFile(const char* source, const char* destination); + static bool CopyFileIfDifferent(const char* source, + const char* destination); + + /** Rename a file or directory within a single disk volume (atomic + if possible). */ + static bool RenameFile(const char* oldname, const char* newname); + + ///! Compute the md5sum of a file + static bool ComputeFileMD5(const char* source, char* md5out); + + /** Compute the md5sum of a string. */ + static std::string ComputeStringMD5(const char* input); + + /** + * Run an executable command and put the stdout in output. + * A temporary file is created in the binaryDir for storing the + * output because windows does not have popen. + * + * If verbose is false, no user-viewable output from the program + * being run will be generated. + * + * If timeout is specified, the command will be terminated after + * timeout expires. + */ + static bool RunCommand(const char* command, std::string& output, + const char* directory = 0, + bool verbose = true, int timeout = 0); + static bool RunCommand(const char* command, std::string& output, + int &retVal, const char* directory = 0, + bool verbose = true, int timeout = 0); + /** + * Run a single executable command + * + * Output is controlled with outputflag. If outputflag is OUTPUT_NONE, no + * user-viewable output from the program being run will be generated. + * OUTPUT_MERGE is the legacy behaviour where stdout and stderr are merged + * into stdout. OUTPUT_NORMAL passes through the output to stdout/stderr as + * it was received. + * + * If timeout is specified, the command will be terminated after + * timeout expires. Timeout is specified in seconds. + * + * Argument retVal should be a pointer to the location where the + * exit code will be stored. If the retVal is not specified and + * the program exits with a code other than 0, then the this + * function will return false. + * + * If the command has spaces in the path the caller MUST call + * cmSystemTools::ConvertToRunCommandPath on the command before passing + * it into this function or it will not work. The command must be correctly + * escaped for this to with spaces. + */ + enum OutputOption + { + OUTPUT_NONE = 0, + OUTPUT_MERGE, + OUTPUT_NORMAL + }; + static bool RunSingleCommand(const char* command, std::string* output = 0, + int* retVal = 0, const char* dir = 0, + OutputOption outputflag = OUTPUT_MERGE, + double timeout = 0.0); + /** + * In this version of RunSingleCommand, command[0] should be + * the command to run, and each argument to the command should + * be in comand[1]...command[command.size()] + */ + static bool RunSingleCommand(std::vector<cmStdString> const& command, + std::string* output = 0, + int* retVal = 0, const char* dir = 0, + OutputOption outputflag = OUTPUT_MERGE, + double timeout = 0.0); + + /** + * Parse arguments out of a single string command + */ + static std::vector<cmStdString> ParseArguments(const char* command); + + /** Parse arguments out of a windows command line string. */ + static void ParseWindowsCommandLine(const char* command, + std::vector<std::string>& args); + + /** Parse arguments out of a unix command line string. */ + static void ParseUnixCommandLine(const char* command, + std::vector<std::string>& args); + static void ParseUnixCommandLine(const char* command, + std::vector<cmStdString>& args); + + /** Compute an escaped version of the given argument for use in a + windows shell. See kwsys/System.h.in for details. */ + static std::string EscapeWindowsShellArgument(const char* arg, + int shell_flags); + + static void EnableMessages() { s_DisableMessages = false; } + static void DisableMessages() { s_DisableMessages = true; } + static void DisableRunCommandOutput() {s_DisableRunCommandOutput = true; } + static void EnableRunCommandOutput() {s_DisableRunCommandOutput = false; } + static bool GetRunCommandOutput() { return s_DisableRunCommandOutput; } + + /** + * Come constants for different file formats. + */ + enum FileFormat { + NO_FILE_FORMAT = 0, + C_FILE_FORMAT, + CXX_FILE_FORMAT, + FORTRAN_FILE_FORMAT, + JAVA_FILE_FORMAT, + HEADER_FILE_FORMAT, + RESOURCE_FILE_FORMAT, + DEFINITION_FILE_FORMAT, + STATIC_LIBRARY_FILE_FORMAT, + SHARED_LIBRARY_FILE_FORMAT, + MODULE_FILE_FORMAT, + OBJECT_FILE_FORMAT, + UNKNOWN_FILE_FORMAT + }; + + enum CompareOp { + OP_LESS, + OP_GREATER, + OP_EQUAL + }; + + /** + * Compare versions + */ + static bool VersionCompare(CompareOp op, const char* lhs, const char* rhs); + + /** + * Determine the file type based on the extension + */ + static FileFormat GetFileFormat(const char* ext); + + /** + * On Windows 9x we need a comspec (command.com) substitute to run + * programs correctly. This string has to be constant available + * through the running of program. This method does not create a copy. + */ + static void SetWindows9xComspecSubstitute(const char*); + static const char* GetWindows9xComspecSubstitute(); + + /** Windows if this is true, the CreateProcess in RunCommand will + * not show new consol windows when running programs. + */ + static void SetRunCommandHideConsole(bool v){s_RunCommandHideConsole = v;} + static bool GetRunCommandHideConsole(){ return s_RunCommandHideConsole;} + /** Call cmSystemTools::Error with the message m, plus the + * result of strerror(errno) + */ + static void ReportLastSystemError(const char* m); + + /** a general output handler for cmsysProcess */ + static int WaitForLine(cmsysProcess* process, std::string& line, + double timeout, + std::vector<char>& out, + std::vector<char>& err); + + /** Split a string on its newlines into multiple lines. Returns + false only if the last line stored had no newline. */ + static bool Split(const char* s, std::vector<cmStdString>& l); + static void SetForceUnixPaths(bool v) + { + s_ForceUnixPaths = v; + } + static bool GetForceUnixPaths() + { + return s_ForceUnixPaths; + } + + // ConvertToOutputPath use s_ForceUnixPaths + static std::string ConvertToOutputPath(const char* path); + static void ConvertToOutputSlashes(std::string& path); + + // ConvertToRunCommandPath does not use s_ForceUnixPaths and should + // be used when RunCommand is called from cmake, because the + // running cmake needs paths to be in its format + static std::string ConvertToRunCommandPath(const char* path); + //! Check if the first string ends with the second one. + static bool StringEndsWith(const char* str1, const char* str2); + + /** compute the relative path from local to remote. local must + be a directory. remote can be a file or a directory. + Both remote and local must be full paths. Basically, if + you are in directory local and you want to access the file in remote + what is the relative path to do that. For example: + /a/b/c/d to /a/b/c1/d1 -> ../../c1/d1 + from /usr/src to /usr/src/test/blah/foo.cpp -> test/blah/foo.cpp + */ + static std::string RelativePath(const char* local, const char* remote); + +#ifdef CMAKE_BUILD_WITH_CMAKE + /** Remove an environment variable */ + static bool UnsetEnv(const char* value); + + /** Get the list of all environment variables */ + static std::vector<std::string> GetEnvironmentVariables(); + + /** Append multiple variables to the current environment. */ + static void AppendEnv(std::vector<std::string> const& env); + + /** Helper class to save and restore the environment. + Instantiate this class as an automatic variable on + the stack. Its constructor saves a copy of the current + environment and then its destructor restores the + original environment. */ + class SaveRestoreEnvironment + { + public: + SaveRestoreEnvironment(); + virtual ~SaveRestoreEnvironment(); + private: + std::vector<std::string> Env; + }; +#endif + + /** Setup the environment to enable VS 8 IDE output. */ + static void EnableVSConsoleOutput(); + + /** Create tar */ + static bool ListTar(const char* outFileName, + bool gzip, bool verbose); + static bool CreateTar(const char* outFileName, + const std::vector<cmStdString>& files, bool gzip, + bool bzip2, bool verbose); + static bool ExtractTar(const char* inFileName, bool gzip, + bool verbose); + // This should be called first thing in main + // it will keep child processes from inheriting the + // stdin and stdout of this process. This is important + // if you want to be able to kill child processes and + // not get stuck waiting for all the output on the pipes. + static void DoNotInheritStdPipes(); + + /** Copy the file create/access/modify times from the file named by + the first argument to that named by the second. */ + static bool CopyFileTime(const char* fromFile, const char* toFile); + + /** Save and restore file times. */ + static cmSystemToolsFileTime* FileTimeNew(); + static void FileTimeDelete(cmSystemToolsFileTime*); + static bool FileTimeGet(const char* fname, cmSystemToolsFileTime* t); + static bool FileTimeSet(const char* fname, cmSystemToolsFileTime* t); + + /** Random seed generation. */ + static unsigned int RandomSeed(); + + /** Find the directory containing the running executable. Save it + in a global location to be queried by GetExecutableDirectory + later. */ + static void FindExecutableDirectory(const char* argv0); + + /** Get the directory containing the currently running executable. */ + static const char* GetExecutableDirectory(); + +#if defined(CMAKE_BUILD_WITH_CMAKE) + /** Echo a message in color using KWSys's Terminal cprintf. */ + static void MakefileColorEcho(int color, const char* message, + bool newLine, bool enabled); +#endif + + /** Try to guess the soname of a shared library. */ + static bool GuessLibrarySOName(std::string const& fullPath, + std::string& soname); + + /** Try to guess the install name of a shared library. */ + static bool GuessLibraryInstallName(std::string const& fullPath, + std::string& soname); + + /** Try to set the RPATH in an ELF binary. */ + static bool ChangeRPath(std::string const& file, + std::string const& oldRPath, + std::string const& newRPath, + std::string* emsg = 0, + bool* changed = 0); + + /** Try to remove the RPATH from an ELF binary. */ + static bool RemoveRPath(std::string const& file, std::string* emsg = 0, + bool* removed = 0); + + /** Check whether the RPATH in an ELF binary contains the path + given. */ + static bool CheckRPath(std::string const& file, + std::string const& newRPath); + + /** Remove a directory; repeat a few times in case of locked files. */ + static bool RepeatedRemoveDirectory(const char* dir); + + /** Tokenize a string */ + static std::vector<std::string> tokenize(const std::string& str, + const std::string& sep); +private: + static bool s_ForceUnixPaths; + static bool s_RunCommandHideConsole; + static bool s_ErrorOccured; + static bool s_FatalErrorOccured; + static bool s_DisableMessages; + static bool s_DisableRunCommandOutput; + static ErrorCallback s_ErrorCallback; + static StdoutCallback s_StdoutCallback; + static InterruptCallback s_InterruptCallback; + static void* s_ErrorCallbackClientData; + static void* s_StdoutCallbackClientData; + static void* s_InterruptCallbackClientData; + + static std::string s_Windows9xComspecSubstitute; +}; + +#endif |