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#! /usr/bin/env python
# per rosengren 2011
from waflib.TaskGen import feature, after_method
from waflib.Task import Task, always_run
from os.path import basename, isabs
from os import tmpfile, linesep
def options(opt):
grp = opt.add_option_group('Softlink Libraries Options')
grp.add_option('--exclude', default='/usr/lib,/lib', help='No symbolic links are created for libs within [%default]')
def configure(cnf):
cnf.find_program('ldd')
if not cnf.env.SOFTLINK_EXCLUDE:
cnf.env.SOFTLINK_EXCLUDE = cnf.options.exclude.split(',')
@feature('softlink_libs')
@after_method('process_rule')
def add_finder(self):
tgt = self.path.find_or_declare(self.target)
self.create_task('sll_finder', tgt=tgt)
self.create_task('sll_installer', tgt=tgt)
always_run(sll_installer)
class sll_finder(Task):
ext_out = 'softlink_libs'
def run(self):
bld = self.generator.bld
linked=[]
target_paths = []
for g in bld.groups:
for tgen in g:
# FIXME it might be better to check if there is a link_task (getattr?)
target_paths += [tgen.path.get_bld().bldpath()]
linked += [t.outputs[0].bldpath()
for t in getattr(tgen, 'tasks', [])
if t.__class__.__name__ in
['cprogram', 'cshlib', 'cxxprogram', 'cxxshlib']]
lib_list = []
if len(linked):
cmd = [self.env.LDD] + linked
# FIXME add DYLD_LIBRARY_PATH+PATH for osx+win32
ldd_env = {'LD_LIBRARY_PATH': ':'.join(target_paths + self.env.LIBPATH)}
# FIXME the with syntax will not work in python 2
with tmpfile() as result:
self.exec_command(cmd, env=ldd_env, stdout=result)
result.seek(0)
for line in result.readlines():
words = line.split()
if len(words) < 3 or words[1] != '=>':
continue
lib = words[2]
if lib == 'not':
continue
if any([lib.startswith(p) for p in
[bld.bldnode.abspath(), '('] +
self.env.SOFTLINK_EXCLUDE]):
continue
if not isabs(lib):
continue
lib_list.append(lib)
lib_list = sorted(set(lib_list))
self.outputs[0].write(linesep.join(lib_list + self.env.DYNAMIC_LIBS))
return 0
class sll_installer(Task):
ext_in = 'softlink_libs'
def run(self):
tgt = self.outputs[0]
self.generator.bld.install_files('${LIBDIR}', tgt, postpone=False)
lib_list=tgt.read().split()
for lib in lib_list:
self.generator.bld.symlink_as('${LIBDIR}/'+basename(lib), lib, postpone=False)
return 0
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