llvm-6502/include/Support/FileUtilities.h
John Criswell 66622be46a Added the MakeFileReadable() method.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@8327 91177308-0d34-0410-b5e6-96231b3b80d8
2003-09-02 21:09:30 +00:00

72 lines
2.2 KiB
C++

//===- Support/FileUtilities.h - File System Utilities ----------*- C++ -*-===//
//
// This file defines a family of utility functions which are useful for doing
// various things with files.
//
//===----------------------------------------------------------------------===//
#ifndef SUPPORT_FILEUTILITIES_H
#define SUPPORT_FILEUTILITIES_H
#include <string>
/// DiffFiles - Compare the two files specified, returning true if they are
/// different or if there is a file error. If you specify a string to fill in
/// for the error option, it will set the string to an error message if an error
/// occurs, allowing the caller to distinguish between a failed diff and a file
/// system error.
///
bool DiffFiles(const std::string &FileA, const std::string &FileB,
std::string *Error = 0);
/// MoveFileOverIfUpdated - If the file specified by New is different than Old,
/// or if Old does not exist, move the New file over the Old file. Otherwise,
/// remove the New file.
///
void MoveFileOverIfUpdated(const std::string &New, const std::string &Old);
/// removeFile - Delete the specified file
///
void removeFile(const std::string &Filename);
/// getUniqueFilename - Return a filename with the specified prefix. If the
/// file does not exist yet, return it, otherwise add a suffix to make it
/// unique.
///
std::string getUniqueFilename(const std::string &FilenameBase);
///
/// Method: MakeFileExecutable()
///
/// Description:
/// This method turns on whatever access attributes are needed to make the
/// specified file executable.
///
/// Return value:
/// True - The operation succeeded.
/// False - The operation failed.
///
/// Notes:
/// In case of failure, the file's access attributes are unspecified.
///
bool MakeFileExecutable (const std::string & Filename);
///
/// Method: MakeFileReadable()
///
/// Description:
/// This method turns on whatever access attributes are needed to make the
/// specified file readable.
///
/// Return value:
/// True - The operation succeeded.
/// False - The operation failed.
///
/// Notes:
/// In case of failure, the file's access attributes are unspecified.
///
bool MakeFileReadable (const std::string & Filename);
#endif