Aluode/PerceptionLabPortable

1from ..dist import Distribution2from ..modified import newer_pairwise_group3 4import distutils.command.build_clib as orig5from distutils import log6from distutils.errors import DistutilsSetupError7 8 9class build_clib(orig.build_clib):10    """11    Override the default build_clib behaviour to do the following:12 13    1. Implement a rudimentary timestamp-based dependency system14       so 'compile()' doesn't run every time.15    2. Add more keys to the 'build_info' dictionary:16        * obj_deps - specify dependencies for each object compiled.17                     this should be a dictionary mapping a key18                     with the source filename to a list of19                     dependencies. Use an empty string for global20                     dependencies.21        * cflags   - specify a list of additional flags to pass to22                     the compiler.23    """24 25    distribution: Distribution  # override distutils.dist.Distribution with setuptools.dist.Distribution26 27    def build_libraries(self, libraries) -> None:28        for lib_name, build_info in libraries:29            sources = build_info.get('sources')30            if sources is None or not isinstance(sources, (list, tuple)):31                raise DistutilsSetupError(32                    f"in 'libraries' option (library '{lib_name}'), "33                    "'sources' must be present and must be "34                    "a list of source filenames"35                )36            sources = sorted(list(sources))37 38            log.info("building '%s' library", lib_name)39 40            # Make sure everything is the correct type.41            # obj_deps should be a dictionary of keys as sources42            # and a list/tuple of files that are its dependencies.43            obj_deps = build_info.get('obj_deps', dict())44            if not isinstance(obj_deps, dict):45                raise DistutilsSetupError(46                    f"in 'libraries' option (library '{lib_name}'), "47                    "'obj_deps' must be a dictionary of "48                    "type 'source: list'"49                )50            dependencies = []51 52            # Get the global dependencies that are specified by the '' key.53            # These will go into every source's dependency list.54            global_deps = obj_deps.get('', list())55            if not isinstance(global_deps, (list, tuple)):56                raise DistutilsSetupError(57                    f"in 'libraries' option (library '{lib_name}'), "58                    "'obj_deps' must be a dictionary of "59                    "type 'source: list'"60                )61 62            # Build the list to be used by newer_pairwise_group63            # each source will be auto-added to its dependencies.64            for source in sources:65                src_deps = [source]66                src_deps.extend(global_deps)67                extra_deps = obj_deps.get(source, list())68                if not isinstance(extra_deps, (list, tuple)):69                    raise DistutilsSetupError(70                        f"in 'libraries' option (library '{lib_name}'), "71                        "'obj_deps' must be a dictionary of "72                        "type 'source: list'"73                    )74                src_deps.extend(extra_deps)75                dependencies.append(src_deps)76 77            expected_objects = self.compiler.object_filenames(78                sources,79                output_dir=self.build_temp,80            )81 82            if newer_pairwise_group(dependencies, expected_objects) != ([], []):83                # First, compile the source code to object files in the library84                # directory.  (This should probably change to putting object85                # files in a temporary build directory.)86                macros = build_info.get('macros')87                include_dirs = build_info.get('include_dirs')88                cflags = build_info.get('cflags')89                self.compiler.compile(90                    sources,91                    output_dir=self.build_temp,92                    macros=macros,93                    include_dirs=include_dirs,94                    extra_postargs=cflags,95                    debug=self.debug,96                )97 98            # Now "link" the object files together into a static library.99            # (On Unix at least, this isn't really linking -- it just100            # builds an archive.  Whatever.)101            self.compiler.create_static_lib(102                expected_objects, lib_name, output_dir=self.build_clib, debug=self.debug103            )104