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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 <iosfwd>
#include <map>
#include <set>
#include <string>
#include <utility>
#include <vector>
#include "cmProperty.h"
#include "cmPropertyMap.h"
#include "cmStateTypes.h"
class cmMessenger;
/** \class cmCacheManager
* \brief Control class for cmake's cache
*
* Load and Save CMake cache files.
*
*/
class cmCacheManager
{
class CacheEntry
{
friend class cmCacheManager;
public:
const std::string& GetValue() const { return this->Value; }
void SetValue(const char*);
cmStateEnums::CacheEntryType GetType() const { return this->Type; }
void SetType(cmStateEnums::CacheEntryType ty) { this->Type = ty; }
std::vector<std::string> GetPropertyList() const;
cmProp GetProperty(const std::string& property) const;
bool GetPropertyAsBool(const std::string& property) const;
void SetProperty(const std::string& property, const char* value);
void SetProperty(const std::string& property, bool value);
void AppendProperty(const std::string& property, const std::string& value,
bool asString = false);
private:
std::string Value;
cmStateEnums::CacheEntryType Type = cmStateEnums::UNINITIALIZED;
cmPropertyMap Properties;
bool Initialized = false;
};
public:
//! Load a cache for given makefile. Loads from path/CMakeCache.txt.
bool LoadCache(const std::string& path, bool internal,
std::set<std::string>& excludes,
std::set<std::string>& includes);
//! Save cache for given makefile. Saves to output path/CMakeCache.txt
bool SaveCache(const std::string& path, cmMessenger* messenger);
//! Delete the cache given
bool DeleteCache(const std::string& path);
//! Print the cache to a stream
void PrintCache(std::ostream&) const;
//! Get whether or not cache is loaded
bool IsCacheLoaded() const { return this->CacheLoaded; }
//! Get a value from the cache given a key
cmProp GetInitializedCacheValue(const std::string& key) const;
cmProp GetCacheEntryValue(const std::string& key) const
{
if (const auto* entry = this->GetCacheEntry(key)) {
return cmProp(entry->GetValue());
}
return nullptr;
}
void SetCacheEntryValue(std::string const& key, std::string const& value)
{
if (auto* entry = this->GetCacheEntry(key)) {
entry->SetValue(value.c_str());
}
}
cmStateEnums::CacheEntryType GetCacheEntryType(std::string const& key) const
{
if (const auto* entry = this->GetCacheEntry(key)) {
return entry->GetType();
}
return cmStateEnums::UNINITIALIZED;
}
std::vector<std::string> GetCacheEntryPropertyList(
std::string const& key) const
{
if (const auto* entry = this->GetCacheEntry(key)) {
return entry->GetPropertyList();
}
return {};
}
cmProp GetCacheEntryProperty(std::string const& key,
std::string const& propName) const
{
if (const auto* entry = this->GetCacheEntry(key)) {
return entry->GetProperty(propName);
}
return nullptr;
}
bool GetCacheEntryPropertyAsBool(std::string const& key,
std::string const& propName) const
{
if (const auto* entry = this->GetCacheEntry(key)) {
return entry->GetPropertyAsBool(propName);
}
return false;
}
void SetCacheEntryProperty(std::string const& key,
std::string const& propName,
std::string const& value)
{
if (auto* entry = this->GetCacheEntry(key)) {
entry->SetProperty(propName, value.c_str());
}
}
void SetCacheEntryBoolProperty(std::string const& key,
std::string const& propName, bool value)
{
if (auto* entry = this->GetCacheEntry(key)) {
entry->SetProperty(propName, value);
}
}
void RemoveCacheEntryProperty(std::string const& key,
std::string const& propName)
{
if (auto* entry = this->GetCacheEntry(key)) {
entry->SetProperty(propName, nullptr);
}
}
void AppendCacheEntryProperty(std::string const& key,
std::string const& propName,
std::string const& value,
bool asString = false)
{
if (auto* entry = this->GetCacheEntry(key)) {
entry->AppendProperty(propName, value, asString);
}
}
std::vector<std::string> GetCacheEntryKeys() const
{
std::vector<std::string> definitions;
definitions.reserve(this->Cache.size());
for (auto const& i : this->Cache) {
definitions.push_back(i.first);
}
return definitions;
}
/** Get the version of CMake that wrote the cache. */
unsigned int GetCacheMajorVersion() const { return this->CacheMajorVersion; }
unsigned int GetCacheMinorVersion() const { return this->CacheMinorVersion; }
//! Add an entry into the cache
void AddCacheEntry(const std::string& key, const char* value,
const char* helpString,
cmStateEnums::CacheEntryType type);
//! Remove an entry from the cache
void RemoveCacheEntry(const std::string& key);
private:
//! Get a cache entry object for a key
CacheEntry* GetCacheEntry(const std::string& key);
const CacheEntry* GetCacheEntry(const std::string& key) const;
//! Clean out the CMakeFiles directory if no CMakeCache.txt
void CleanCMakeFiles(const std::string& path);
static void OutputHelpString(std::ostream& fout,
const std::string& helpString);
static void OutputWarningComment(std::ostream& fout,
std::string const& message,
bool wrapSpaces);
static void OutputNewlineTruncationWarning(std::ostream& fout,
std::string const& key,
std::string const& value,
cmMessenger* messenger);
static void OutputKey(std::ostream& fout, std::string const& key);
static void OutputValue(std::ostream& fout, std::string const& value);
static void OutputValueNoNewlines(std::ostream& fout,
std::string const& value);
static const char* PersistentProperties[];
bool ReadPropertyEntry(const std::string& key, const CacheEntry& e);
void WritePropertyEntries(std::ostream& os, const std::string& entryKey,
const CacheEntry& e, cmMessenger* messenger) const;
std::map<std::string, CacheEntry> Cache;
bool CacheLoaded = false;
// Cache version info
unsigned int CacheMajorVersion = 0;
unsigned int CacheMinorVersion = 0;
};
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