mapnik/scons/scons-local-0.96.1/SCons/Scanner/Prog.py
2006-01-31 23:09:52 +00:00

86 lines
3.1 KiB
Python

#
# Copyright (c) 2001, 2002, 2003, 2004 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__ = "/home/scons/scons/branch.0/baseline/src/engine/SCons/Scanner/Prog.py 0.96.1.D001 2004/08/23 09:55:29 knight"
import string
import SCons.Node
import SCons.Node.FS
import SCons.Scanner
import SCons.Util
def ProgScan(fs = SCons.Node.FS.default_fs):
"""Return a prototype Scanner instance for scanning executable
files for static-lib dependencies"""
pf = SCons.Scanner.FindPathDirs('LIBPATH', fs)
ps = SCons.Scanner.Base(scan, "ProgScan", path_function = pf)
return ps
def scan(node, env, libpath = (), fs = SCons.Node.FS.default_fs):
"""
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.Dictionary('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)
elif not SCons.Util.is_List(libs):
libs = [libs]
try:
prefix = env.Dictionary('LIBPREFIXES')
if not SCons.Util.is_List(prefix):
prefix = [ prefix ]
except KeyError:
prefix = [ '' ]
try:
suffix = env.Dictionary('LIBSUFFIXES')
if not SCons.Util.is_List(suffix):
suffix = [ suffix ]
except KeyError:
suffix = [ '' ]
find_file = SCons.Node.FS.find_file
adjustixes = SCons.Util.adjustixes
result = []
for suf in map(env.subst, suffix):
for pref in map(env.subst, prefix):
for lib in libs:
if SCons.Util.is_String(lib):
lib = env.subst(lib)
lib = adjustixes(lib, pref, suf)
lib = find_file(lib, libpath, fs.File)
if lib:
result.append(lib)
else:
result.append(lib)
return result