Prog.py
上传用户:market2
上传日期:2018-11-18
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文件大小:3k
- #
- # Copyright (c) 2001, 2002, 2003, 2004, 2005, 2006, 2007, 2008 The SCons Foundation
- #
- # Permission is hereby granted, free of charge, to any person obtaining
- # a copy of this software and associated documentation files (the
- # "Software"), to deal in the Software without restriction, including
- # without limitation the rights to use, copy, modify, merge, publish,
- # distribute, sublicense, and/or sell copies of the Software, and to
- # permit persons to whom the Software is furnished to do so, subject to
- # the following conditions:
- #
- # The above copyright notice and this permission notice shall be included
- # in all copies or substantial portions of the Software.
- #
- # THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY
- # KIND, EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE
- # WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
- # NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
- # LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
- # OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
- # WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
- #
- __revision__ = "src/engine/SCons/Scanner/Prog.py 3057 2008/06/09 22:21:00 knight"
- import string
- import SCons.Node
- import SCons.Node.FS
- import SCons.Scanner
- import SCons.Util
- # global, set by --debug=findlibs
- print_find_libs = None
- def ProgramScanner(**kw):
- """Return a prototype Scanner instance for scanning executable
- files for static-lib dependencies"""
- kw['path_function'] = SCons.Scanner.FindPathDirs('LIBPATH')
- ps = apply(SCons.Scanner.Base, [scan, "ProgramScanner"], kw)
- return ps
- def scan(node, env, libpath = ()):
- """
- This scanner scans program files for static-library
- dependencies. It will search the LIBPATH environment variable
- for libraries specified in the LIBS variable, returning any
- files it finds as dependencies.
- """
- try:
- libs = env['LIBS']
- except KeyError:
- # There are no LIBS in this environment, so just return a null list:
- return []
- if SCons.Util.is_String(libs):
- libs = string.split(libs)
- else:
- libs = SCons.Util.flatten(libs)
- try:
- prefix = env['LIBPREFIXES']
- if not SCons.Util.is_List(prefix):
- prefix = [ prefix ]
- except KeyError:
- prefix = [ '' ]
- try:
- suffix = env['LIBSUFFIXES']
- if not SCons.Util.is_List(suffix):
- suffix = [ suffix ]
- except KeyError:
- suffix = [ '' ]
- pairs = []
- for suf in map(env.subst, suffix):
- for pref in map(env.subst, prefix):
- pairs.append((pref, suf))
- result = []
- if callable(libpath):
- libpath = libpath()
- find_file = SCons.Node.FS.find_file
- adjustixes = SCons.Util.adjustixes
- for lib in libs:
- if SCons.Util.is_String(lib):
- lib = env.subst(lib)
- for pref, suf in pairs:
- l = adjustixes(lib, pref, suf)
- l = find_file(l, libpath, verbose=print_find_libs)
- if l:
- result.append(l)
- else:
- result.append(lib)
- return result