bdca8b01d2
#pragma once is a widely supported compiler pragma, even though it is not part of the C++ standard. Many of the issues keeping #pragma once from being standardized (distributed filesystems, build farms, hard links, etc.) do not apply to CMake - it is easy to build CMake on a single machine. CMake also does not install any header files which can be consumed by other projects (though cmCPluginAPI.h has been deliberately omitted from this conversion in case anyone is still using it.) Finally, #pragma once has been required to build CMake since at least August 2017 (7f29bbe6enabled server mode unconditionally, which had been using #pragma once since September 2016 (b13d3e0d)). The fact that we now require C++11 filters out old compilers, and it is unlikely that there is a compiler which supports C++11 but does not support #pragma once.
76 lines
2.3 KiB
C++
76 lines
2.3 KiB
C++
/* Distributed under the OSI-approved BSD 3-Clause License. See accompanying
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file Copyright.txt or https://cmake.org/licensing for details. */
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#pragma once
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#include "cmConfigure.h" // IWYU pragma: keep
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#include <iosfwd>
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#include <string>
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#include <vector>
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#include "cmInstallType.h"
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#include "cmScriptGenerator.h"
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class cmLocalGenerator;
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class cmMakefile;
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/** \class cmInstallGenerator
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* \brief Support class for generating install scripts.
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*
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*/
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class cmInstallGenerator : public cmScriptGenerator
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{
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public:
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enum MessageLevel
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{
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MessageDefault,
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MessageAlways,
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MessageLazy,
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MessageNever
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};
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cmInstallGenerator(std::string destination,
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std::vector<std::string> const& configurations,
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std::string component, MessageLevel message,
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bool exclude_from_all);
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~cmInstallGenerator() override;
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cmInstallGenerator(cmInstallGenerator const&) = delete;
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cmInstallGenerator& operator=(cmInstallGenerator const&) = delete;
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virtual bool HaveInstall();
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virtual void CheckCMP0082(bool& haveSubdirectoryInstall,
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bool& haveInstallAfterSubdirectory);
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void AddInstallRule(
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std::ostream& os, std::string const& dest, cmInstallType type,
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std::vector<std::string> const& files, bool optional = false,
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const char* permissions_file = nullptr,
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const char* permissions_dir = nullptr, const char* rename = nullptr,
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const char* literal_args = nullptr, Indent indent = Indent());
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/** Get the install destination as it should appear in the
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installation script. */
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std::string ConvertToAbsoluteDestination(std::string const& dest) const;
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/** Test if this generator installs something for a given configuration. */
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bool InstallsForConfig(const std::string& config);
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/** Select message level from CMAKE_INSTALL_MESSAGE or 'never'. */
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static MessageLevel SelectMessageLevel(cmMakefile* mf, bool never = false);
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virtual bool Compute(cmLocalGenerator*) { return true; }
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protected:
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void GenerateScript(std::ostream& os) override;
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std::string CreateComponentTest(const std::string& component,
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bool exclude_from_all);
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// Information shared by most generator types.
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std::string const Destination;
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std::string const Component;
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MessageLevel const Message;
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bool const ExcludeFromAll;
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};
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