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#! /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)
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