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/* Distributed under the OSI-approved BSD 3-Clause License. See accompanying
file Copyright.txt or https://cmake.org/licensing for details. */
#pragma once
#include "cmConfigure.h" // IWYU pragma: keep
#include <map>
#include <memory>
#include <set>
#include <string>
#include <utility>
#include <vector>
#include "cmsys/RegularExpression.hxx"
class cmGeneratorTarget;
class cmGlobalGenerator;
class cmOrderDirectoriesConstraint;
/** \class cmOrderDirectories
* \brief Compute a safe runtime path order for a set of shared libraries.
*/
class cmOrderDirectories
{
public:
cmOrderDirectories(cmGlobalGenerator* gg, cmGeneratorTarget const* target,
const char* purpose);
~cmOrderDirectories();
cmOrderDirectories(const cmOrderDirectories&) = delete;
cmOrderDirectories& operator=(const cmOrderDirectories&) = delete;
void AddRuntimeLibrary(std::string const& fullPath,
const char* soname = nullptr);
void AddLinkLibrary(std::string const& fullPath);
void AddUserDirectories(std::vector<std::string> const& extra);
void AddLanguageDirectories(std::vector<std::string> const& dirs);
void SetImplicitDirectories(std::set<std::string> const& implicitDirs);
void SetLinkExtensionInfo(std::vector<std::string> const& linkExtensions,
std::string const& removeExtRegex);
std::vector<std::string> const& GetOrderedDirectories();
private:
cmGlobalGenerator* GlobalGenerator;
cmGeneratorTarget const* Target;
std::string Purpose;
std::vector<std::string> OrderedDirectories;
std::vector<std::unique_ptr<cmOrderDirectoriesConstraint>> ConstraintEntries;
std::vector<std::unique_ptr<cmOrderDirectoriesConstraint>>
ImplicitDirEntries;
std::vector<std::string> UserDirectories;
std::vector<std::string> LanguageDirectories;
cmsys::RegularExpression RemoveLibraryExtension;
std::vector<std::string> LinkExtensions;
std::set<std::string> ImplicitDirectories;
std::set<std::string> EmmittedConstraintSOName;
std::set<std::string> EmmittedConstraintLibrary;
std::vector<std::string> OriginalDirectories;
std::map<std::string, int> DirectoryIndex;
std::vector<int> DirectoryVisited;
void CollectOriginalDirectories();
int AddOriginalDirectory(std::string const& dir);
void AddOriginalDirectories(std::vector<std::string> const& dirs);
void FindConflicts();
void FindImplicitConflicts();
void OrderDirectories();
void VisitDirectory(unsigned int i);
void DiagnoseCycle();
int WalkId;
bool CycleDiagnosed;
bool Computed;
// Adjacency-list representation of runtime path ordering graph.
// This maps from directory to those that must come *before* it.
// Each entry that must come before is a pair. The first element is
// the index of the directory that must come first. The second
// element is the index of the runtime library that added the
// constraint.
using ConflictPair = std::pair<int, int>;
struct ConflictList : public std::vector<ConflictPair>
{
};
std::vector<ConflictList> ConflictGraph;
// Compare directories after resolving symlinks.
bool IsSameDirectory(std::string const& l, std::string const& r);
bool IsImplicitDirectory(std::string const& dir);
std::string const& GetRealPath(std::string const& dir);
std::map<std::string, std::string> RealPaths;
friend class cmOrderDirectoriesConstraint;
friend class cmOrderDirectoriesConstraintLibrary;
};
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