mirror of
https://github.com/reactos/CMake.git
synced 2024-12-04 09:54:15 +00:00
65 lines
2.0 KiB
C++
65 lines
2.0 KiB
C++
/* Distributed under the OSI-approved BSD 3-Clause License. See accompanying
|
|
file Copyright.txt or https://cmake.org/licensing for details. */
|
|
#ifndef cmFilePathChecksum_h
|
|
#define cmFilePathChecksum_h
|
|
|
|
#include "cmConfigure.h" // IWYU pragma: keep
|
|
|
|
#include <array>
|
|
#include <cstddef>
|
|
#include <string>
|
|
#include <utility>
|
|
|
|
class cmMakefile;
|
|
|
|
/** \class cmFilePathChecksum
|
|
* @brief Generates a checksum for the parent directory of a file
|
|
*
|
|
* The checksum is calculated from the relative file path to the
|
|
* closest known project directory. This guarantees reproducibility
|
|
* when source and build directory differ e.g. for different project
|
|
* build directories.
|
|
*/
|
|
class cmFilePathChecksum
|
|
{
|
|
public:
|
|
/// Maximum number of characters to use from the path checksum
|
|
static const size_t partLengthDefault = 10;
|
|
|
|
/// @brief Parent directories are empty
|
|
cmFilePathChecksum();
|
|
|
|
/// @brief Initializes the parent directories manually
|
|
cmFilePathChecksum(std::string const& currentSrcDir,
|
|
std::string const& currentBinDir,
|
|
std::string const& projectSrcDir,
|
|
std::string const& projectBinDir);
|
|
|
|
/// @brief Initializes the parent directories from a makefile
|
|
cmFilePathChecksum(cmMakefile* makefile);
|
|
|
|
/// @brief Allows parent directories setup after construction
|
|
///
|
|
void setupParentDirs(std::string const& currentSrcDir,
|
|
std::string const& currentBinDir,
|
|
std::string const& projectSrcDir,
|
|
std::string const& projectBinDir);
|
|
|
|
/* @brief Calculates the path checksum for the parent directory of a file
|
|
*
|
|
*/
|
|
std::string get(std::string const& filePath) const;
|
|
|
|
/* @brief Same as get() but returns only the first length characters
|
|
*
|
|
*/
|
|
std::string getPart(std::string const& filePath,
|
|
size_t length = partLengthDefault) const;
|
|
|
|
private:
|
|
/// List of (directory name, seed name) pairs
|
|
std::array<std::pair<std::string, std::string>, 4> parentDirs;
|
|
};
|
|
|
|
#endif
|