mirror of
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147 lines
3.5 KiB
Python
147 lines
3.5 KiB
Python
#!/usr/bin/env python
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# encoding: utf-8
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# Thomas Nagy, 2005-2015 (ita)
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"base for all c/c++ programs and libraries"
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from waflib import Utils, Errors
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from waflib.Configure import conf
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def get_extensions(lst):
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"""
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Returns the file extensions for the list of files given as input
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:param lst: files to process
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:list lst: list of string or :py:class:`waflib.Node.Node`
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:return: list of file extensions
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:rtype: list of string
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"""
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ret = []
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for x in Utils.to_list(lst):
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if not isinstance(x, str):
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x = x.name
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ret.append(x[x.rfind('.') + 1:])
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return ret
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def sniff_features(**kw):
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"""
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Computes and returns the features required for a task generator by
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looking at the file extensions. This aimed for C/C++ mainly::
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snif_features(source=['foo.c', 'foo.cxx'], type='shlib')
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# returns ['cxx', 'c', 'cxxshlib', 'cshlib']
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:param source: source files to process
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:type source: list of string or :py:class:`waflib.Node.Node`
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:param type: object type in *program*, *shlib* or *stlib*
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:type type: string
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:return: the list of features for a task generator processing the source files
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:rtype: list of string
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"""
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exts = get_extensions(kw.get('source', []))
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typ = kw['typ']
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feats = []
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# watch the order, cxx will have the precedence
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for x in 'cxx cpp c++ cc C'.split():
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if x in exts:
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feats.append('cxx')
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break
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if 'c' in exts or 'vala' in exts or 'gs' in exts:
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feats.append('c')
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if 's' in exts or 'S' in exts:
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feats.append('asm')
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for x in 'f f90 F F90 for FOR'.split():
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if x in exts:
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feats.append('fc')
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break
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if 'd' in exts:
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feats.append('d')
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if 'java' in exts:
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feats.append('java')
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return 'java'
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if typ in ('program', 'shlib', 'stlib'):
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will_link = False
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for x in feats:
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if x in ('cxx', 'd', 'fc', 'c', 'asm'):
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feats.append(x + typ)
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will_link = True
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if not will_link and not kw.get('features', []):
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raise Errors.WafError('Unable to determine how to link %r, try adding eg: features="c cshlib"?' % kw)
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return feats
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def set_features(kw, typ):
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"""
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Inserts data in the input dict *kw* based on existing data and on the type of target
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required (typ).
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:param kw: task generator parameters
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:type kw: dict
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:param typ: type of target
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:type typ: string
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"""
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kw['typ'] = typ
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kw['features'] = Utils.to_list(kw.get('features', [])) + Utils.to_list(sniff_features(**kw))
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@conf
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def program(bld, *k, **kw):
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"""
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Alias for creating programs by looking at the file extensions::
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def build(bld):
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bld.program(source='foo.c', target='app')
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# equivalent to:
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# bld(features='c cprogram', source='foo.c', target='app')
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"""
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set_features(kw, 'program')
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return bld(*k, **kw)
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@conf
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def shlib(bld, *k, **kw):
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"""
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Alias for creating shared libraries by looking at the file extensions::
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def build(bld):
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bld.shlib(source='foo.c', target='app')
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# equivalent to:
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# bld(features='c cshlib', source='foo.c', target='app')
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"""
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set_features(kw, 'shlib')
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return bld(*k, **kw)
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@conf
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def stlib(bld, *k, **kw):
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"""
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Alias for creating static libraries by looking at the file extensions::
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def build(bld):
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bld.stlib(source='foo.cpp', target='app')
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# equivalent to:
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# bld(features='cxx cxxstlib', source='foo.cpp', target='app')
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"""
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set_features(kw, 'stlib')
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return bld(*k, **kw)
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@conf
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def objects(bld, *k, **kw):
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"""
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Alias for creating object files by looking at the file extensions::
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def build(bld):
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bld.objects(source='foo.c', target='app')
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# equivalent to:
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# bld(features='c', source='foo.c', target='app')
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"""
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set_features(kw, 'objects')
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return bld(*k, **kw)
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