def read_setup_file(filename):
"""Reads a Setup file and returns Extension instances."""
from distutils.sysconfig import (_variable_rx, expand_makefile_vars,
parse_makefile)
from distutils.text_file import TextFile
from distutils.util import split_quoted
# First pass over the file to gather "VAR = VALUE" assignments.
vars = parse_makefile(filename)
# Second pass to gobble up the real content: lines of the form
# <module> ... [<sourcefile> ...] [<cpparg> ...] [<library> ...]
file = TextFile(
filename,
strip_comments=1,
skip_blanks=1,
join_lines=1,
lstrip_ws=1,
rstrip_ws=1,
)
try:
extensions = []
while True:
line = file.readline()
if line is None: # eof
break
if _variable_rx.match(line): # VAR=VALUE, handled in first pass
continue
if line[0] == line[-1] == "*":
file.warn("'%s' lines not handled yet" % line)
continue
line = expand_makefile_vars(line, vars)
words = split_quoted(line)
# NB. this parses a slightly different syntax than the old
# makesetup script: here, there must be exactly one extension per
# line, and it must be the first word of the line. I have no idea
# why the old syntax supported multiple extensions per line, as
# they all wind up being the same.
module = words[0]
ext = Extension(module, [])
append_next_word = None
for word in words[1:]:
if append_next_word is not None:
append_next_word.append(word)
append_next_word = None
continue
suffix = os.path.splitext(word)[1]
switch = word[0:2]
value = word[2:]
if suffix in (".c", ".cc", ".cpp", ".cxx", ".c++", ".m",
".mm"):
# hmm, should we do something about C vs. C++ sources?
# or leave it up to the CCompiler implementation to
# worry about?
ext.sources.append(word)
elif switch == "-I":
ext.include_dirs.append(value)
elif switch == "-D":
equals = value.find("=")
if equals == -1: # bare "-DFOO" -- no value
ext.define_macros.append((value, None))
else: # "-DFOO=blah"
ext.define_macros.append(
(value[0:equals], value[equals + 2:]))
elif switch == "-U":
ext.undef_macros.append(value)
elif switch == "-C": # only here 'cause makesetup has it!
ext.extra_compile_args.append(word)
elif switch == "-l":
ext.libraries.append(value)
elif switch == "-L":
ext.library_dirs.append(value)
elif switch == "-R":
ext.runtime_library_dirs.append(value)
elif word == "-rpath":
append_next_word = ext.runtime_library_dirs
elif word == "-Xlinker":
append_next_word = ext.extra_link_args
elif word == "-Xcompiler":
append_next_word = ext.extra_compile_args
elif switch == "-u":
ext.extra_link_args.append(word)
if not value:
append_next_word = ext.extra_link_args
elif suffix in (".a", ".so", ".sl", ".o", ".dylib"):
# NB. a really faithful emulation of makesetup would
# append a .o file to extra_objects only if it
# had a slash in it; otherwise, it would s/.o/.c/
# and append it to sources. Hmmmm.
ext.extra_objects.append(word)
else:
file.warn("unrecognized argument '%s'" % word)
extensions.append(ext)
finally:
file.close()
return extensions
def read_setup_file(filename):
from distutils.sysconfig import parse_makefile, expand_makefile_vars, _variable_rx
from distutils.text_file import TextFile
from distutils.util import split_quoted
vars = parse_makefile(filename)
file = TextFile(filename,
strip_comments=1,
skip_blanks=1,
join_lines=1,
lstrip_ws=1,
rstrip_ws=1)
try:
extensions = []
while 1:
line = file.readline()
if line is None:
break
if _variable_rx.match(line):
continue
if line[0] == line[-1] == '*':
file.warn("'%s' lines not handled yet" % line)
continue
line = expand_makefile_vars(line, vars)
words = split_quoted(line)
module = words[0]
ext = Extension(module, [])
append_next_word = None
for word in words[1:]:
if append_next_word is not None:
append_next_word.append(word)
append_next_word = None
continue
suffix = os.path.splitext(word)[1]
switch = word[0:2]
value = word[2:]
if suffix in ('.c', '.cc', '.cpp', '.cxx', '.c++', '.m',
'.mm'):
ext.sources.append(word)
elif switch == '-I':
ext.include_dirs.append(value)
elif switch == '-D':
equals = string.find(value, '=')
if equals == -1:
ext.define_macros.append((value, None))
else:
ext.define_macros.append(
(value[0:equals], value[equals + 2:]))
elif switch == '-U':
ext.undef_macros.append(value)
elif switch == '-C':
ext.extra_compile_args.append(word)
elif switch == '-l':
ext.libraries.append(value)
elif switch == '-L':
ext.library_dirs.append(value)
elif switch == '-R':
ext.runtime_library_dirs.append(value)
elif word == '-rpath':
append_next_word = ext.runtime_library_dirs
elif word == '-Xlinker':
append_next_word = ext.extra_link_args
elif word == '-Xcompiler':
append_next_word = ext.extra_compile_args
elif switch == '-u':
ext.extra_link_args.append(word)
if not value:
append_next_word = ext.extra_link_args
elif word == '-Xcompiler':
append_next_word = ext.extra_compile_args
elif switch == '-u':
ext.extra_link_args.append(word)
if not value:
append_next_word = ext.extra_link_args
elif suffix in ('.a', '.so', '.sl', '.o', '.dylib'):
ext.extra_objects.append(word)
else:
file.warn("unrecognized argument '%s'" % word)
extensions.append(ext)
finally:
file.close()
return extensions