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| import distutils.command.build_clib as orig | |
| from distutils.errors import DistutilsSetupError | |
| from distutils import log | |
| from setuptools.dep_util import newer_pairwise_group | |
| class build_clib(orig.build_clib): | |
| """ | |
| Override the default build_clib behaviour to do the following: | |
| 1. Implement a rudimentary timestamp-based dependency system | |
| so 'compile()' doesn't run every time. | |
| 2. Add more keys to the 'build_info' dictionary: | |
| * obj_deps - specify dependencies for each object compiled. | |
| this should be a dictionary mapping a key | |
| with the source filename to a list of | |
| dependencies. Use an empty string for global | |
| dependencies. | |
| * cflags - specify a list of additional flags to pass to | |
| the compiler. | |
| """ | |
| def build_libraries(self, libraries): | |
| for (lib_name, build_info) in libraries: | |
| sources = build_info.get('sources') | |
| if sources is None or not isinstance(sources, (list, tuple)): | |
| raise DistutilsSetupError( | |
| "in 'libraries' option (library '%s'), " | |
| "'sources' must be present and must be " | |
| "a list of source filenames" % lib_name) | |
| sources = sorted(list(sources)) | |
| log.info("building '%s' library", lib_name) | |
| # Make sure everything is the correct type. | |
| # obj_deps should be a dictionary of keys as sources | |
| # and a list/tuple of files that are its dependencies. | |
| obj_deps = build_info.get('obj_deps', dict()) | |
| if not isinstance(obj_deps, dict): | |
| raise DistutilsSetupError( | |
| "in 'libraries' option (library '%s'), " | |
| "'obj_deps' must be a dictionary of " | |
| "type 'source: list'" % lib_name) | |
| dependencies = [] | |
| # Get the global dependencies that are specified by the '' key. | |
| # These will go into every source's dependency list. | |
| global_deps = obj_deps.get('', list()) | |
| if not isinstance(global_deps, (list, tuple)): | |
| raise DistutilsSetupError( | |
| "in 'libraries' option (library '%s'), " | |
| "'obj_deps' must be a dictionary of " | |
| "type 'source: list'" % lib_name) | |
| # Build the list to be used by newer_pairwise_group | |
| # each source will be auto-added to its dependencies. | |
| for source in sources: | |
| src_deps = [source] | |
| src_deps.extend(global_deps) | |
| extra_deps = obj_deps.get(source, list()) | |
| if not isinstance(extra_deps, (list, tuple)): | |
| raise DistutilsSetupError( | |
| "in 'libraries' option (library '%s'), " | |
| "'obj_deps' must be a dictionary of " | |
| "type 'source: list'" % lib_name) | |
| src_deps.extend(extra_deps) | |
| dependencies.append(src_deps) | |
| expected_objects = self.compiler.object_filenames( | |
| sources, | |
| output_dir=self.build_temp, | |
| ) | |
| if ( | |
| newer_pairwise_group(dependencies, expected_objects) | |
| != ([], []) | |
| ): | |
| # First, compile the source code to object files in the library | |
| # directory. (This should probably change to putting object | |
| # files in a temporary build directory.) | |
| macros = build_info.get('macros') | |
| include_dirs = build_info.get('include_dirs') | |
| cflags = build_info.get('cflags') | |
| self.compiler.compile( | |
| sources, | |
| output_dir=self.build_temp, | |
| macros=macros, | |
| include_dirs=include_dirs, | |
| extra_postargs=cflags, | |
| debug=self.debug | |
| ) | |
| # Now "link" the object files together into a static library. | |
| # (On Unix at least, this isn't really linking -- it just | |
| # builds an archive. Whatever.) | |
| self.compiler.create_static_lib( | |
| expected_objects, | |
| lib_name, | |
| output_dir=self.build_clib, | |
| debug=self.debug | |
| ) | |