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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. */
#ifndef cmGlobVerificationManager_h
#define cmGlobVerificationManager_h
#include "cmConfigure.h" // IWYU pragma: keep
#include "cmListFileCache.h"
#include <iosfwd>
#include <map>
#include <string>
#include <utility>
#include <vector>
/** \class cmGlobVerificationManager
* \brief Class for expressing build-time dependencies on glob expressions.
*
* Generates a CMake script which verifies glob outputs during prebuild.
*
*/
class cmGlobVerificationManager
{
public:
cmGlobVerificationManager() {}
protected:
///! Save verification script for given makefile.
///! Saves to output <path>/<CMakeFilesDirectory>/VerifyGlobs.cmake
bool SaveVerificationScript(const std::string& path);
///! Add an entry into the glob cache
void AddCacheEntry(bool recurse, bool listDirectories, bool followSymlinks,
const std::string& relative,
const std::string& expression,
const std::vector<std::string>& files,
const std::string& variable,
const cmListFileBacktrace& bt);
///! Clear the glob cache for state reset.
void Reset();
///! Check targets should be written in generated build system.
bool DoWriteVerifyTarget() const;
///! Get the paths to the generated script and stamp files
std::string const& GetVerifyScript() const { return this->VerifyScript; }
std::string const& GetVerifyStamp() const { return this->VerifyStamp; }
private:
struct CacheEntryKey
{
const bool Recurse;
const bool ListDirectories;
const bool FollowSymlinks;
const std::string Relative;
const std::string Expression;
CacheEntryKey(const bool rec, const bool l, const bool s, std::string rel,
std::string e)
: Recurse(rec)
, ListDirectories(l)
, FollowSymlinks(s)
, Relative(std::move(rel))
, Expression(std::move(e))
{
}
bool operator<(const CacheEntryKey& r) const;
void PrintGlobCommand(std::ostream& out, const std::string& cmdVar);
};
struct CacheEntryValue
{
bool Initialized = false;
std::vector<std::string> Files;
std::vector<std::pair<std::string, cmListFileBacktrace>> Backtraces;
CacheEntryValue() {}
};
typedef std::map<CacheEntryKey, CacheEntryValue> CacheEntryMap;
CacheEntryMap Cache;
std::string VerifyScript;
std::string VerifyStamp;
// Only cmState should be able to add cache values.
// cmGlobVerificationManager should never be used directly.
friend class cmState; // allow access to add cache values
};
#endif
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