Imported Upstream version 4.0.0+dfsg1
[abartlet/samba-debian.git] / buildtools / wafadmin / 3rdparty / swig.py
diff --git a/buildtools/wafadmin/3rdparty/swig.py b/buildtools/wafadmin/3rdparty/swig.py
new file mode 100644 (file)
index 0000000..c0a4108
--- /dev/null
@@ -0,0 +1,190 @@
+#! /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
+
+"""
+Welcome in the hell of adding tasks dynamically
+
+swig interface files may be created at runtime, the module name may be unknown in advance
+
+rev 5859 is much more simple
+"""
+
+SWIG_EXTS = ['.swig', '.i']
+
+swig_str = '${SWIG} ${SWIGFLAGS} ${_CCINCFLAGS} ${_CXXINCFLAGS} ${_CCDEFFLAGS} ${_CXXDEFFLAGS} ${SRC}'
+cls = Task.simple_task_type('swig', swig_str, color='BLUE', ext_in='.i .h', ext_out='.o .c .cxx', shell=False)
+
+def runnable_status(self):
+       for t in self.run_after:
+               if not t.hasrun:
+                       return ASK_LATER
+
+       if not getattr(self, 'init_outputs', None):
+               self.init_outputs = True
+               if not getattr(self, 'module', None):
+                       # search the module name
+                       txt = self.inputs[0].read(self.env)
+                       m = re_module.search(txt)
+                       if not m:
+                               raise ValueError("could not find the swig module name")
+                       self.module = m.group(1)
+
+               swig_c(self)
+
+               # add the language-specific output files as nodes
+               # call funs in the dict swig_langs
+               for x in self.env['SWIGFLAGS']:
+                       # obtain the language
+                       x = x[1:]
+                       try:
+                               fun = swig_langs[x]
+                       except KeyError:
+                               pass
+                       else:
+                               fun(self)
+
+       return Task.Task.runnable_status(self)
+setattr(cls, 'runnable_status', runnable_status)
+
+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.env.INC_PATHS + [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
+
+def swig_c(self):
+       ext = '.swigwrap_%d.c' % self.generator.idx
+       flags = self.env['SWIGFLAGS']
+       if '-c++' in flags:
+               ext += 'xx'
+       out_node = self.inputs[0].parent.find_or_declare(self.module + ext)
+
+       try:
+               if '-c++' in flags:
+                       fun = self.generator.cxx_hook
+               else:
+                       fun = self.generator.c_hook
+       except AttributeError:
+               raise Utils.WafError('No c%s compiler was found to process swig files' % ('-c++' in flags and '++' or ''))
+
+       task = fun(out_node)
+       task.set_run_after(self)
+
+       ge = self.generator.bld.generator
+       ge.outstanding.insert(0, task)
+       ge.total += 1
+
+       try:
+               ltask = self.generator.link_task
+       except AttributeError:
+               pass
+       else:
+               ltask.inputs.append(task.outputs[0])
+
+       self.outputs.append(out_node)
+
+       if not '-o' in self.env['SWIGFLAGS']:
+               self.env.append_value('SWIGFLAGS', '-o')
+               self.env.append_value('SWIGFLAGS', self.outputs[0].abspath(self.env))
+
+@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'))
+
+@extension(SWIG_EXTS)
+def i_file(self, node):
+       # the task instance
+       tsk = self.create_task('swig')
+       tsk.set_inputs(node)
+       tsk.module = getattr(self, 'swig_module', None)
+
+       flags = self.to_list(getattr(self, 'swig_flags', []))
+       self.env.append_value('SWIGFLAGS', flags)
+
+       if not '-outdir' in flags:
+               flags.append('-outdir')
+               flags.append(node.parent.abspath(self.env))
+
+@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)
+