mirror of
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551d3343cd
While calculating dependencies collapse sequences such as ../../../a/b/c/../../d/e/../../e/f to avoid total path lengths over the Windows path length limit as much as possible.
492 lines
18 KiB
C++
492 lines
18 KiB
C++
/*============================================================================
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CMake - Cross Platform Makefile Generator
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Copyright 2000-2009 Kitware, Inc., Insight Software Consortium
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Distributed under the OSI-approved BSD License (the "License");
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see accompanying file Copyright.txt for details.
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This software is distributed WITHOUT ANY WARRANTY; without even the
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implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
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See the License for more information.
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============================================================================*/
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#ifndef cmSystemTools_h
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#define cmSystemTools_h
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#include "cmStandardIncludes.h"
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#include <cmsys/SystemTools.hxx>
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#include <cmsys/Process.h>
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class cmSystemToolsFileTime;
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/** \class cmSystemTools
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* \brief A collection of useful functions for CMake.
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*
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* cmSystemTools is a class that provides helper functions
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* for the CMake build system.
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*/
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class cmSystemTools: public cmsys::SystemTools
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{
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public:
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typedef cmsys::SystemTools Superclass;
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/** Expand out any arguments in the vector that have ; separated
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* strings into multiple arguments. A new vector is created
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* containing the expanded versions of all arguments in argsIn.
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*/
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static void ExpandList(std::vector<std::string> const& argsIn,
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std::vector<std::string>& argsOut);
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static void ExpandListArgument(const std::string& arg,
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std::vector<std::string>& argsOut,
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bool emptyArgs=false);
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/**
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* Look for and replace registry values in a string
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*/
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static void ExpandRegistryValues(std::string& source,
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KeyWOW64 view = KeyWOW64_Default);
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///! Escape quotes in a string.
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static std::string EscapeQuotes(const char* str);
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/**
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* Returns a string that has whitespace removed from the start and the end.
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*/
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static std::string TrimWhitespace(const std::string& s);
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typedef void (*ErrorCallback)(const char*, const char*, bool&, void*);
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/**
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* Set the function used by GUIs to display error messages
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* Function gets passed: message as a const char*,
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* title as a const char*, and a reference to bool that when
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* set to false, will disable furthur messages (cancel).
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*/
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static void SetErrorCallback(ErrorCallback f, void* clientData=0);
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/**
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* Display an error message.
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*/
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static void Error(const char* m, const char* m2=0,
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const char* m3=0, const char* m4=0);
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/**
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* Display a message.
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*/
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static void Message(const char* m, const char* title=0);
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///! Send a string to stdout
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static void Stdout(const char* s);
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static void Stdout(const char* s, int length);
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typedef void (*StdoutCallback)(const char*, int length, void*);
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static void SetStdoutCallback(StdoutCallback, void* clientData=0);
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///! Send a string to stderr. Stdout callbacks will not be invoced.
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static void Stderr(const char* s, int length);
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typedef bool (*InterruptCallback)(void*);
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static void SetInterruptCallback(InterruptCallback f, void* clientData=0);
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static bool GetInterruptFlag();
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///! Return true if there was an error at any point.
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static bool GetErrorOccuredFlag()
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{
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return cmSystemTools::s_ErrorOccured ||
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cmSystemTools::s_FatalErrorOccured ||
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GetInterruptFlag();
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}
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///! If this is set to true, cmake stops processing commands.
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static void SetFatalErrorOccured()
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{
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cmSystemTools::s_FatalErrorOccured = true;
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}
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static void SetErrorOccured()
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{
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cmSystemTools::s_ErrorOccured = true;
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}
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///! Return true if there was an error at any point.
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static bool GetFatalErrorOccured()
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{
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return cmSystemTools::s_FatalErrorOccured || GetInterruptFlag();
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}
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///! Set the error occured flag and fatal error back to false
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static void ResetErrorOccuredFlag()
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{
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cmSystemTools::s_FatalErrorOccured = false;
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cmSystemTools::s_ErrorOccured = false;
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}
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/**
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* Does a string indicates that CMake/CPack/CTest internally
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* forced this value. This is not the same as On, but this
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* may be considered as "internally switched on".
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*/
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static bool IsInternallyOn(const char* val);
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/**
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* does a string indicate a true or on value ? This is not the same
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* as ifdef.
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*/
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static bool IsOn(const char* val);
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/**
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* does a string indicate a false or off value ? Note that this is
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* not the same as !IsOn(...) because there are a number of
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* ambiguous values such as "/usr/local/bin" a path will result in
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* IsON and IsOff both returning false. Note that the special path
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* NOTFOUND, *-NOTFOUND or IGNORE will cause IsOff to return true.
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*/
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static bool IsOff(const char* val);
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///! Return true if value is NOTFOUND or ends in -NOTFOUND.
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static bool IsNOTFOUND(const char* value);
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///! Return true if the path is a framework
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static bool IsPathToFramework(const char* value);
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static bool DoesFileExistWithExtensions(
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const char *name,
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const std::vector<std::string>& sourceExts);
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/**
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* Check if the given file exists in one of the parent directory of the
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* given file or directory and if it does, return the name of the file.
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* Toplevel specifies the top-most directory to where it will look.
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*/
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static std::string FileExistsInParentDirectories(const char* fname,
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const char* directory, const char* toplevel);
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static void Glob(const char *directory, const char *regexp,
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std::vector<std::string>& files);
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static void GlobDirs(const char *fullPath, std::vector<std::string>& files);
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/**
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* Try to find a list of files that match the "simple" globbing
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* expression. At this point in time the globbing expressions have
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* to be in form: /directory/partial_file_name*. The * character has
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* to be at the end of the string and it does not support ?
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* []... The optional argument type specifies what kind of files you
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* want to find. 0 means all files, -1 means directories, 1 means
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* files only. This method returns true if search was succesfull.
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*/
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static bool SimpleGlob(const cmStdString& glob,
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std::vector<cmStdString>& files,
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int type = 0);
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///! Copy a file.
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static bool cmCopyFile(const char* source, const char* destination);
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static bool CopyFileIfDifferent(const char* source,
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const char* destination);
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/** Rename a file or directory within a single disk volume (atomic
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if possible). */
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static bool RenameFile(const char* oldname, const char* newname);
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///! Compute the md5sum of a file
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static bool ComputeFileMD5(const char* source, char* md5out);
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/** Compute the md5sum of a string. */
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static std::string ComputeStringMD5(const char* input);
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/**
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* Run an executable command and put the stdout in output.
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* A temporary file is created in the binaryDir for storing the
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* output because windows does not have popen.
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*
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* If verbose is false, no user-viewable output from the program
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* being run will be generated.
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*
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* If timeout is specified, the command will be terminated after
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* timeout expires.
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*/
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static bool RunCommand(const char* command, std::string& output,
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const char* directory = 0,
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bool verbose = true, int timeout = 0);
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static bool RunCommand(const char* command, std::string& output,
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int &retVal, const char* directory = 0,
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bool verbose = true, int timeout = 0);
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/**
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* Run a single executable command
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*
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* Output is controlled with outputflag. If outputflag is OUTPUT_NONE, no
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* user-viewable output from the program being run will be generated.
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* OUTPUT_MERGE is the legacy behaviour where stdout and stderr are merged
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* into stdout. OUTPUT_NORMAL passes through the output to stdout/stderr as
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* it was received.
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*
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* If timeout is specified, the command will be terminated after
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* timeout expires. Timeout is specified in seconds.
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*
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* Argument retVal should be a pointer to the location where the
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* exit code will be stored. If the retVal is not specified and
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* the program exits with a code other than 0, then the this
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* function will return false.
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*
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* If the command has spaces in the path the caller MUST call
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* cmSystemTools::ConvertToRunCommandPath on the command before passing
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* it into this function or it will not work. The command must be correctly
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* escaped for this to with spaces.
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*/
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enum OutputOption
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{
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OUTPUT_NONE = 0,
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OUTPUT_MERGE,
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OUTPUT_NORMAL
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};
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static bool RunSingleCommand(const char* command, std::string* output = 0,
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int* retVal = 0, const char* dir = 0,
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OutputOption outputflag = OUTPUT_MERGE,
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double timeout = 0.0);
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/**
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* In this version of RunSingleCommand, command[0] should be
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* the command to run, and each argument to the command should
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* be in comand[1]...command[command.size()]
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*/
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static bool RunSingleCommand(std::vector<cmStdString> const& command,
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std::string* output = 0,
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int* retVal = 0, const char* dir = 0,
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OutputOption outputflag = OUTPUT_MERGE,
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double timeout = 0.0);
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/**
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* Parse arguments out of a single string command
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*/
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static std::vector<cmStdString> ParseArguments(const char* command);
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/** Parse arguments out of a windows command line string. */
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static void ParseWindowsCommandLine(const char* command,
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std::vector<std::string>& args);
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/** Parse arguments out of a unix command line string. */
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static void ParseUnixCommandLine(const char* command,
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std::vector<std::string>& args);
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static void ParseUnixCommandLine(const char* command,
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std::vector<cmStdString>& args);
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/** Compute an escaped version of the given argument for use in a
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windows shell. See kwsys/System.h.in for details. */
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static std::string EscapeWindowsShellArgument(const char* arg,
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int shell_flags);
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static void EnableMessages() { s_DisableMessages = false; }
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static void DisableMessages() { s_DisableMessages = true; }
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static void DisableRunCommandOutput() {s_DisableRunCommandOutput = true; }
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static void EnableRunCommandOutput() {s_DisableRunCommandOutput = false; }
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static bool GetRunCommandOutput() { return s_DisableRunCommandOutput; }
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/**
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* Some constants for different file formats.
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*/
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enum FileFormat {
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NO_FILE_FORMAT = 0,
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C_FILE_FORMAT,
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CXX_FILE_FORMAT,
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FORTRAN_FILE_FORMAT,
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JAVA_FILE_FORMAT,
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HEADER_FILE_FORMAT,
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RESOURCE_FILE_FORMAT,
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DEFINITION_FILE_FORMAT,
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STATIC_LIBRARY_FILE_FORMAT,
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SHARED_LIBRARY_FILE_FORMAT,
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MODULE_FILE_FORMAT,
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OBJECT_FILE_FORMAT,
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UNKNOWN_FILE_FORMAT
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};
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enum CompareOp {
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OP_LESS,
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OP_GREATER,
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OP_EQUAL
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};
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/**
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* Compare versions
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*/
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static bool VersionCompare(CompareOp op, const char* lhs, const char* rhs);
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/**
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* Determine the file type based on the extension
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*/
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static FileFormat GetFileFormat(const char* ext);
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/**
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* On Windows 9x we need a comspec (command.com) substitute to run
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* programs correctly. This string has to be constant available
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* through the running of program. This method does not create a copy.
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*/
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static void SetWindows9xComspecSubstitute(const char*);
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static const char* GetWindows9xComspecSubstitute();
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/** Windows if this is true, the CreateProcess in RunCommand will
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* not show new consol windows when running programs.
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*/
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static void SetRunCommandHideConsole(bool v){s_RunCommandHideConsole = v;}
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static bool GetRunCommandHideConsole(){ return s_RunCommandHideConsole;}
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/** Call cmSystemTools::Error with the message m, plus the
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* result of strerror(errno)
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*/
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static void ReportLastSystemError(const char* m);
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/** a general output handler for cmsysProcess */
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static int WaitForLine(cmsysProcess* process, std::string& line,
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double timeout,
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std::vector<char>& out,
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std::vector<char>& err);
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/** Split a string on its newlines into multiple lines. Returns
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false only if the last line stored had no newline. */
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static bool Split(const char* s, std::vector<cmStdString>& l);
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static void SetForceUnixPaths(bool v)
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{
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s_ForceUnixPaths = v;
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}
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static bool GetForceUnixPaths()
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{
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return s_ForceUnixPaths;
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}
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// ConvertToOutputPath use s_ForceUnixPaths
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static std::string ConvertToOutputPath(const char* path);
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static void ConvertToOutputSlashes(std::string& path);
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// ConvertToRunCommandPath does not use s_ForceUnixPaths and should
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// be used when RunCommand is called from cmake, because the
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// running cmake needs paths to be in its format
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static std::string ConvertToRunCommandPath(const char* path);
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//! Check if the first string ends with the second one.
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static bool StringEndsWith(const char* str1, const char* str2);
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/** compute the relative path from local to remote. local must
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be a directory. remote can be a file or a directory.
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Both remote and local must be full paths. Basically, if
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you are in directory local and you want to access the file in remote
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what is the relative path to do that. For example:
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/a/b/c/d to /a/b/c1/d1 -> ../../c1/d1
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from /usr/src to /usr/src/test/blah/foo.cpp -> test/blah/foo.cpp
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*/
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static std::string RelativePath(const char* local, const char* remote);
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/** Joins two paths while collapsing x/../ parts
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* For example CollapseCombinedPath("a/b/c", "../../d") results in "a/d"
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*/
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static std::string CollapseCombinedPath(std::string const& dir,
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std::string const& file);
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#ifdef CMAKE_BUILD_WITH_CMAKE
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/** Remove an environment variable */
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static bool UnsetEnv(const char* value);
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/** Get the list of all environment variables */
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static std::vector<std::string> GetEnvironmentVariables();
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/** Append multiple variables to the current environment. */
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static void AppendEnv(std::vector<std::string> const& env);
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/** Helper class to save and restore the environment.
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Instantiate this class as an automatic variable on
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the stack. Its constructor saves a copy of the current
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environment and then its destructor restores the
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original environment. */
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class SaveRestoreEnvironment
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{
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public:
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SaveRestoreEnvironment();
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virtual ~SaveRestoreEnvironment();
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private:
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std::vector<std::string> Env;
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};
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#endif
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/** Setup the environment to enable VS 8 IDE output. */
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static void EnableVSConsoleOutput();
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/** Create tar */
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static bool ListTar(const char* outFileName,
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bool gzip, bool verbose);
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static bool CreateTar(const char* outFileName,
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const std::vector<cmStdString>& files, bool gzip,
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bool bzip2, bool verbose);
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static bool ExtractTar(const char* inFileName, bool gzip,
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bool verbose);
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// This should be called first thing in main
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// it will keep child processes from inheriting the
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// stdin and stdout of this process. This is important
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// if you want to be able to kill child processes and
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// not get stuck waiting for all the output on the pipes.
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static void DoNotInheritStdPipes();
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/** Copy the file create/access/modify times from the file named by
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the first argument to that named by the second. */
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static bool CopyFileTime(const char* fromFile, const char* toFile);
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/** Save and restore file times. */
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static cmSystemToolsFileTime* FileTimeNew();
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static void FileTimeDelete(cmSystemToolsFileTime*);
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static bool FileTimeGet(const char* fname, cmSystemToolsFileTime* t);
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static bool FileTimeSet(const char* fname, cmSystemToolsFileTime* t);
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/** Random seed generation. */
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static unsigned int RandomSeed();
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/** Find the directory containing the running executable. Save it
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in a global location to be queried by GetExecutableDirectory
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later. */
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static void FindExecutableDirectory(const char* argv0);
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/** Get the directory containing the currently running executable. */
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static const char* GetExecutableDirectory();
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#if defined(CMAKE_BUILD_WITH_CMAKE)
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/** Echo a message in color using KWSys's Terminal cprintf. */
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static void MakefileColorEcho(int color, const char* message,
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bool newLine, bool enabled);
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#endif
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/** Try to guess the soname of a shared library. */
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static bool GuessLibrarySOName(std::string const& fullPath,
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std::string& soname);
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/** Try to guess the install name of a shared library. */
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static bool GuessLibraryInstallName(std::string const& fullPath,
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std::string& soname);
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/** Try to set the RPATH in an ELF binary. */
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static bool ChangeRPath(std::string const& file,
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std::string const& oldRPath,
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std::string const& newRPath,
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std::string* emsg = 0,
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bool* changed = 0);
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/** Try to remove the RPATH from an ELF binary. */
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static bool RemoveRPath(std::string const& file, std::string* emsg = 0,
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bool* removed = 0);
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/** Check whether the RPATH in an ELF binary contains the path
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given. */
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static bool CheckRPath(std::string const& file,
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std::string const& newRPath);
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/** Remove a directory; repeat a few times in case of locked files. */
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static bool RepeatedRemoveDirectory(const char* dir);
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/** Tokenize a string */
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static std::vector<std::string> tokenize(const std::string& str,
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const std::string& sep);
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private:
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static bool s_ForceUnixPaths;
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static bool s_RunCommandHideConsole;
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static bool s_ErrorOccured;
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static bool s_FatalErrorOccured;
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static bool s_DisableMessages;
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static bool s_DisableRunCommandOutput;
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static ErrorCallback s_ErrorCallback;
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static StdoutCallback s_StdoutCallback;
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static InterruptCallback s_InterruptCallback;
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static void* s_ErrorCallbackClientData;
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static void* s_StdoutCallbackClientData;
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static void* s_InterruptCallbackClientData;
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static std::string s_Windows9xComspecSubstitute;
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};
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#endif
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