From 939beb11a5ccf58d7fe79a809a1b592c5c9143c0 Mon Sep 17 00:00:00 2001 From: Boris Kolpackov Date: Thu, 11 Nov 2021 13:20:30 +0200 Subject: Add support for dynamic dependencies in ad hoc Buildscript recipes Specifically, add the new `depdb dyndep` builtin that can be used to extract dynamic dependencies from a program run or a file. For example: obje{hello.o}: cxx{hello} {{ s = $path($<[0]) depdb dyndep $cxx.poptions $cc.poptions --what=header --default-prereq-type=h -- $cxx.path $cxx.poptions $cc.poptions $cxx.mode -M -MG $s diag c++ ($<[0]) o = $path($>) $cxx.path $cxx.poptions $cc.poptions $cc.coptions $cxx.coptions $cxx.mode -o $o -c $s }} Currently only the `make` dependency format is supported. --- libbuild2/build/script/builtin-options.hxx | 456 +++++++++++++++++++++++++++++ 1 file changed, 456 insertions(+) create mode 100644 libbuild2/build/script/builtin-options.hxx (limited to 'libbuild2/build/script/builtin-options.hxx') diff --git a/libbuild2/build/script/builtin-options.hxx b/libbuild2/build/script/builtin-options.hxx new file mode 100644 index 0000000..85d67b9 --- /dev/null +++ b/libbuild2/build/script/builtin-options.hxx @@ -0,0 +1,456 @@ +// -*- C++ -*- +// +// This file was generated by CLI, a command line interface +// compiler for C++. +// + +#ifndef LIBBUILD2_BUILD_SCRIPT_BUILTIN_OPTIONS_HXX +#define LIBBUILD2_BUILD_SCRIPT_BUILTIN_OPTIONS_HXX + +// Begin prologue. +// +// +// End prologue. + +#include +#include +#include +#include +#include + +#ifndef CLI_POTENTIALLY_UNUSED +# if defined(_MSC_VER) || defined(__xlC__) +# define CLI_POTENTIALLY_UNUSED(x) (void*)&x +# else +# define CLI_POTENTIALLY_UNUSED(x) (void)x +# endif +#endif + +namespace build2 +{ + namespace build + { + namespace script + { + namespace cli + { + class unknown_mode + { + public: + enum value + { + skip, + stop, + fail + }; + + unknown_mode (value); + + operator value () const + { + return v_; + } + + private: + value v_; + }; + + // Exceptions. + // + + class exception: public std::exception + { + public: + virtual void + print (::std::ostream&) const = 0; + }; + + ::std::ostream& + operator<< (::std::ostream&, const exception&); + + class unknown_option: public exception + { + public: + virtual + ~unknown_option () throw (); + + unknown_option (const std::string& option); + + const std::string& + option () const; + + virtual void + print (::std::ostream&) const; + + virtual const char* + what () const throw (); + + private: + std::string option_; + }; + + class unknown_argument: public exception + { + public: + virtual + ~unknown_argument () throw (); + + unknown_argument (const std::string& argument); + + const std::string& + argument () const; + + virtual void + print (::std::ostream&) const; + + virtual const char* + what () const throw (); + + private: + std::string argument_; + }; + + class missing_value: public exception + { + public: + virtual + ~missing_value () throw (); + + missing_value (const std::string& option); + + const std::string& + option () const; + + virtual void + print (::std::ostream&) const; + + virtual const char* + what () const throw (); + + private: + std::string option_; + }; + + class invalid_value: public exception + { + public: + virtual + ~invalid_value () throw (); + + invalid_value (const std::string& option, + const std::string& value, + const std::string& message = std::string ()); + + const std::string& + option () const; + + const std::string& + value () const; + + const std::string& + message () const; + + virtual void + print (::std::ostream&) const; + + virtual const char* + what () const throw (); + + private: + std::string option_; + std::string value_; + std::string message_; + }; + + class eos_reached: public exception + { + public: + virtual void + print (::std::ostream&) const; + + virtual const char* + what () const throw (); + }; + + // Command line argument scanner interface. + // + // The values returned by next() are guaranteed to be valid + // for the two previous arguments up until a call to a third + // peek() or next(). + // + // The position() function returns a monotonically-increasing + // number which, if stored, can later be used to determine the + // relative position of the argument returned by the following + // call to next(). Note that if multiple scanners are used to + // extract arguments from multiple sources, then the end + // position of the previous scanner should be used as the + // start position of the next. + // + class scanner + { + public: + virtual + ~scanner (); + + virtual bool + more () = 0; + + virtual const char* + peek () = 0; + + virtual const char* + next () = 0; + + virtual void + skip () = 0; + + virtual std::size_t + position () = 0; + }; + + class argv_scanner: public scanner + { + public: + argv_scanner (int& argc, + char** argv, + bool erase = false, + std::size_t start_position = 0); + + argv_scanner (int start, + int& argc, + char** argv, + bool erase = false, + std::size_t start_position = 0); + + int + end () const; + + virtual bool + more (); + + virtual const char* + peek (); + + virtual const char* + next (); + + virtual void + skip (); + + virtual std::size_t + position (); + + protected: + std::size_t start_position_; + int i_; + int& argc_; + char** argv_; + bool erase_; + }; + + class vector_scanner: public scanner + { + public: + vector_scanner (const std::vector&, + std::size_t start = 0, + std::size_t start_position = 0); + + std::size_t + end () const; + + void + reset (std::size_t start = 0, std::size_t start_position = 0); + + virtual bool + more (); + + virtual const char* + peek (); + + virtual const char* + next (); + + virtual void + skip (); + + virtual std::size_t + position (); + + private: + std::size_t start_position_; + const std::vector& v_; + std::size_t i_; + }; + + template + struct parser; + } + } + } +} + +#include + +namespace build2 +{ + namespace build + { + namespace script + { + class depdb_dep_options + { + public: + depdb_dep_options (); + + // Return true if anything has been parsed. + // + bool + parse (int& argc, + char** argv, + bool erase = false, + ::build2::build::script::cli::unknown_mode option = ::build2::build::script::cli::unknown_mode::fail, + ::build2::build::script::cli::unknown_mode argument = ::build2::build::script::cli::unknown_mode::stop); + + bool + parse (int start, + int& argc, + char** argv, + bool erase = false, + ::build2::build::script::cli::unknown_mode option = ::build2::build::script::cli::unknown_mode::fail, + ::build2::build::script::cli::unknown_mode argument = ::build2::build::script::cli::unknown_mode::stop); + + bool + parse (int& argc, + char** argv, + int& end, + bool erase = false, + ::build2::build::script::cli::unknown_mode option = ::build2::build::script::cli::unknown_mode::fail, + ::build2::build::script::cli::unknown_mode argument = ::build2::build::script::cli::unknown_mode::stop); + + bool + parse (int start, + int& argc, + char** argv, + int& end, + bool erase = false, + ::build2::build::script::cli::unknown_mode option = ::build2::build::script::cli::unknown_mode::fail, + ::build2::build::script::cli::unknown_mode argument = ::build2::build::script::cli::unknown_mode::stop); + + bool + parse (::build2::build::script::cli::scanner&, + ::build2::build::script::cli::unknown_mode option = ::build2::build::script::cli::unknown_mode::fail, + ::build2::build::script::cli::unknown_mode argument = ::build2::build::script::cli::unknown_mode::stop); + + // Option accessors and modifiers. + // + const path& + file () const; + + path& + file (); + + void + file (const path&); + + bool + file_specified () const; + + void + file_specified (bool); + + const string& + format () const; + + string& + format (); + + void + format (const string&); + + bool + format_specified () const; + + void + format_specified (bool); + + const string& + what () const; + + string& + what (); + + void + what (const string&); + + bool + what_specified () const; + + void + what_specified (bool); + + const dir_paths& + include_path () const; + + dir_paths& + include_path (); + + void + include_path (const dir_paths&); + + bool + include_path_specified () const; + + void + include_path_specified (bool); + + const string& + default_prereq_type () const; + + string& + default_prereq_type (); + + void + default_prereq_type (const string&); + + bool + default_prereq_type_specified () const; + + void + default_prereq_type_specified (bool); + + // Implementation details. + // + protected: + bool + _parse (const char*, ::build2::build::script::cli::scanner&); + + private: + bool + _parse (::build2::build::script::cli::scanner&, + ::build2::build::script::cli::unknown_mode option, + ::build2::build::script::cli::unknown_mode argument); + + public: + path file_; + bool file_specified_; + string format_; + bool format_specified_; + string what_; + bool what_specified_; + dir_paths include_path_; + bool include_path_specified_; + string default_prereq_type_; + bool default_prereq_type_specified_; + }; + } + } +} + +#include + +// Begin epilogue. +// +// +// End epilogue. + +#endif // LIBBUILD2_BUILD_SCRIPT_BUILTIN_OPTIONS_HXX -- cgit v1.1