ref: 6107f4ccc994ff015df0647bbf54a784e8f68be1
dir: /swig/swig.py/
#! /usr/bin/env python # encoding: UTF-8 # Petar Forai # Thomas Nagy 2008 import re import Task, Utils, Logs from TaskGen import extension from Configure import conf import preproc SWIG_EXTS = ['.swig', '.i'] swig_str = '${SWIG} ${SWIGFLAGS} ${SRC}' cls = Task.simple_task_type('swig', swig_str, color='BLUE', before='cc cxx') re_module = re.compile('%module(?:\s*\(.*\))?\s+(.+)', re.M) re_1 = re.compile(r'^%module.*?\s+([\w]+)\s*?$', re.M) re_2 = re.compile('%include "(.*)"', re.M) re_3 = re.compile('#include "(.*)"', re.M) def scan(self): "scan for swig dependencies, climb the .i files" env = self.env lst_src = [] seen = [] to_see = [self.inputs[0]] while to_see: node = to_see.pop(0) if node.id in seen: continue seen.append(node.id) lst_src.append(node) # read the file code = node.read(env) code = preproc.re_nl.sub('', code) code = preproc.re_cpp.sub(preproc.repl, code) # find .i files and project headers names = re_2.findall(code) + re_3.findall(code) for n in names: for d in self.generator.swig_dir_nodes + [node.parent]: u = d.find_resource(n) if u: to_see.append(u) break else: Logs.warn('could not find %r' % n) # list of nodes this one depends on, and module name if present if Logs.verbose: Logs.debug('deps: deps for %s: %s' % (str(self), str(lst_src))) return (lst_src, []) cls.scan = scan # provide additional language processing swig_langs = {} def swig(fun): swig_langs[fun.__name__.replace('swig_', '')] = fun @swig def swig_python(tsk): tsk.set_outputs(tsk.inputs[0].parent.find_or_declare(tsk.module + '.py')) @swig def swig_ocaml(tsk): tsk.set_outputs(tsk.inputs[0].parent.find_or_declare(tsk.module + '.ml')) tsk.set_outputs(tsk.inputs[0].parent.find_or_declare(tsk.module + '.mli')) def add_swig_paths(self): if getattr(self, 'add_swig_paths_done', None): return self.add_swig_paths_done = True self.swig_dir_nodes = [] for x in self.to_list(self.includes): node = self.path.find_dir(x) if not node: Logs.warn('could not find the include %r' % x) continue self.swig_dir_nodes.append(node) # add the top-level, it is likely to be added self.swig_dir_nodes.append(self.bld.srcnode) for x in self.swig_dir_nodes: self.env.append_unique('SWIGFLAGS', '-I%s' % x.abspath(self.env)) # build dir self.env.append_unique('SWIGFLAGS', '-I%s' % x.abspath()) # source dir @extension(SWIG_EXTS) def i_file(self, node): flags = self.to_list(getattr(self, 'swig_flags', [])) ext = '.swigwrap_%d.c' % self.idx if '-c++' in flags: ext += 'xx' # the user might specify the module directly module = getattr(self, 'swig_module', None) if not module: # else, open the files and search txt = node.read(self.env) m = re_module.search(txt) if not m: raise "for now we are expecting a module name in the main swig file" module = m.group(1) out_node = node.parent.find_or_declare(module + ext) # the task instance tsk = self.create_task('swig') tsk.set_inputs(node) tsk.set_outputs(out_node) tsk.module = module tsk.env['SWIGFLAGS'] = flags if not '-outdir' in flags: flags.append('-outdir') flags.append(node.parent.abspath(self.env)) if not '-o' in flags: flags.append('-o') flags.append(out_node.abspath(self.env)) # add the language-specific output files as nodes # call funs in the dict swig_langs for x in flags: # obtain the language x = x[1:] try: fun = swig_langs[x] except KeyError: pass else: fun(tsk) self.allnodes.append(out_node) add_swig_paths(self) @conf def check_swig_version(conf, minver=None): """Check for a minimum swig version like conf.check_swig_version('1.3.28') or conf.check_swig_version((1,3,28)) """ reg_swig = re.compile(r'SWIG Version\s(.*)', re.M) swig_out = Utils.cmd_output('%s -version' % conf.env['SWIG']) swigver = [int(s) for s in reg_swig.findall(swig_out)[0].split('.')] if isinstance(minver, basestring): minver = [int(s) for s in minver.split(".")] if isinstance(minver, tuple): minver = [int(s) for s in minver] result = (minver is None) or (minver[:3] <= swigver[:3]) swigver_full = '.'.join(map(str, swigver)) if result: conf.env['SWIG_VERSION'] = swigver_full minver_str = '.'.join(map(str, minver)) if minver is None: conf.check_message_custom('swig version', '', swigver_full) else: conf.check_message('swig version', '>= %s' % (minver_str,), result, option=swigver_full) return result def detect(conf): swig = conf.find_program('swig', var='SWIG', mandatory=True)