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Diffstat (limited to 'lib/python2.7/distutils/command/build_clib.py')
| -rw-r--r-- | lib/python2.7/distutils/command/build_clib.py | 209 |
1 files changed, 209 insertions, 0 deletions
diff --git a/lib/python2.7/distutils/command/build_clib.py b/lib/python2.7/distutils/command/build_clib.py new file mode 100644 index 0000000..205587e --- /dev/null +++ b/lib/python2.7/distutils/command/build_clib.py @@ -0,0 +1,209 @@ +"""distutils.command.build_clib + +Implements the Distutils 'build_clib' command, to build a C/C++ library +that is included in the module distribution and needed by an extension +module.""" + +__revision__ = "$Id$" + + +# XXX this module has *lots* of code ripped-off quite transparently from +# build_ext.py -- not surprisingly really, as the work required to build +# a static library from a collection of C source files is not really all +# that different from what's required to build a shared object file from +# a collection of C source files. Nevertheless, I haven't done the +# necessary refactoring to account for the overlap in code between the +# two modules, mainly because a number of subtle details changed in the +# cut 'n paste. Sigh. + +import os +from distutils.core import Command +from distutils.errors import DistutilsSetupError +from distutils.sysconfig import customize_compiler +from distutils import log + +def show_compilers(): + from distutils.ccompiler import show_compilers + show_compilers() + + +class build_clib(Command): + + description = "build C/C++ libraries used by Python extensions" + + user_options = [ + ('build-clib=', 'b', + "directory to build C/C++ libraries to"), + ('build-temp=', 't', + "directory to put temporary build by-products"), + ('debug', 'g', + "compile with debugging information"), + ('force', 'f', + "forcibly build everything (ignore file timestamps)"), + ('compiler=', 'c', + "specify the compiler type"), + ] + + boolean_options = ['debug', 'force'] + + help_options = [ + ('help-compiler', None, + "list available compilers", show_compilers), + ] + + def initialize_options(self): + self.build_clib = None + self.build_temp = None + + # List of libraries to build + self.libraries = None + + # Compilation options for all libraries + self.include_dirs = None + self.define = None + self.undef = None + self.debug = None + self.force = 0 + self.compiler = None + + + def finalize_options(self): + # This might be confusing: both build-clib and build-temp default + # to build-temp as defined by the "build" command. This is because + # I think that C libraries are really just temporary build + # by-products, at least from the point of view of building Python + # extensions -- but I want to keep my options open. + self.set_undefined_options('build', + ('build_temp', 'build_clib'), + ('build_temp', 'build_temp'), + ('compiler', 'compiler'), + ('debug', 'debug'), + ('force', 'force')) + + self.libraries = self.distribution.libraries + if self.libraries: + self.check_library_list(self.libraries) + + if self.include_dirs is None: + self.include_dirs = self.distribution.include_dirs or [] + if isinstance(self.include_dirs, str): + self.include_dirs = self.include_dirs.split(os.pathsep) + + # XXX same as for build_ext -- what about 'self.define' and + # 'self.undef' ? + + def run(self): + if not self.libraries: + return + + # Yech -- this is cut 'n pasted from build_ext.py! + from distutils.ccompiler import new_compiler + self.compiler = new_compiler(compiler=self.compiler, + dry_run=self.dry_run, + force=self.force) + customize_compiler(self.compiler) + + if self.include_dirs is not None: + self.compiler.set_include_dirs(self.include_dirs) + if self.define is not None: + # 'define' option is a list of (name,value) tuples + for (name,value) in self.define: + self.compiler.define_macro(name, value) + if self.undef is not None: + for macro in self.undef: + self.compiler.undefine_macro(macro) + + self.build_libraries(self.libraries) + + + def check_library_list(self, libraries): + """Ensure that the list of libraries is valid. + + `library` is presumably provided as a command option 'libraries'. + This method checks that it is a list of 2-tuples, where the tuples + are (library_name, build_info_dict). + + Raise DistutilsSetupError if the structure is invalid anywhere; + just returns otherwise. + """ + if not isinstance(libraries, list): + raise DistutilsSetupError, \ + "'libraries' option must be a list of tuples" + + for lib in libraries: + if not isinstance(lib, tuple) and len(lib) != 2: + raise DistutilsSetupError, \ + "each element of 'libraries' must a 2-tuple" + + name, build_info = lib + + if not isinstance(name, str): + raise DistutilsSetupError, \ + "first element of each tuple in 'libraries' " + \ + "must be a string (the library name)" + if '/' in name or (os.sep != '/' and os.sep in name): + raise DistutilsSetupError, \ + ("bad library name '%s': " + + "may not contain directory separators") % \ + lib[0] + + if not isinstance(build_info, dict): + raise DistutilsSetupError, \ + "second element of each tuple in 'libraries' " + \ + "must be a dictionary (build info)" + + def get_library_names(self): + # Assume the library list is valid -- 'check_library_list()' is + # called from 'finalize_options()', so it should be! + if not self.libraries: + return None + + lib_names = [] + for (lib_name, build_info) in self.libraries: + lib_names.append(lib_name) + return lib_names + + + def get_source_files(self): + self.check_library_list(self.libraries) + filenames = [] + for (lib_name, build_info) in self.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 + + filenames.extend(sources) + return filenames + + 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 = list(sources) + + log.info("building '%s' library", lib_name) + + # 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') + objects = self.compiler.compile(sources, + output_dir=self.build_temp, + macros=macros, + include_dirs=include_dirs, + 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(objects, lib_name, + output_dir=self.build_clib, + debug=self.debug) |