def _need_link(self, objects, output_file):
"""Return true if we need to relink the files listed in 'objects'
to recreate 'output_file'.
"""
if self.force:
return True
else:
if self.dry_run:
newer = newer_group(objects, output_file, missing='newer')
else:
newer = newer_group(objects, output_file)
return newer
def _need_link(self, objects, output_file):
"""Return true if we need to relink the files listed in 'objects'
to recreate 'output_file'.
"""
if self.force:
return True
else:
if self.dry_run:
newer = newer_group(objects, output_file, missing="newer")
else:
newer = newer_group(objects, output_file)
return newer
def make_file(self, infiles, outfile, func, args,
exec_msg=None, skip_msg=None, level=1):
"""Special case of 'execute()' for operations that process one or
more input files and generate one output file. Works just like
'execute()', except the operation is skipped and a different
message printed if 'outfile' already exists and is newer than all
files listed in 'infiles'. If the command defined 'self.force',
and it is true, then the command is unconditionally run -- does no
timestamp checks.
"""
if skip_msg is None:
skip_msg = "skipping %s (inputs unchanged)" % outfile
# Allow 'infiles' to be a single string
if isinstance(infiles, str):
infiles = (infiles,)
elif not isinstance(infiles, (list, tuple)):
raise TypeError, \
"'infiles' must be a string, or a list or tuple of strings"
if exec_msg is None:
exec_msg = "generating %s from %s" % \
(outfile, ', '.join(infiles))
# If 'outfile' must be regenerated (either because it doesn't
# exist, is out-of-date, or the 'force' flag is true) then
# perform the action that presumably regenerates it
if self.force or util.newer_group(infiles, outfile):
self.execute(func, args, exec_msg, level)
# Otherwise, print the "skip" message
else:
log.debug(skip_msg)
def make_file(self, infiles, outfile, func, args,
exec_msg=None, skip_msg=None, level=1):
"""Special case of 'execute()' for operations that process one or
more input files and generate one output file. Works just like
'execute()', except the operation is skipped and a different
message printed if 'outfile' already exists and is newer than all
files listed in 'infiles'. If the command defined 'self.force',
and it is true, then the command is unconditionally run -- does no
timestamp checks.
"""
if skip_msg is None:
skip_msg = "skipping %s (inputs unchanged)" % outfile
# Allow 'infiles' to be a single string
if isinstance(infiles, str):
infiles = (infiles,)
elif not isinstance(infiles, (list, tuple)):
raise TypeError(
"'infiles' must be a string, or a list or tuple of strings")
if exec_msg is None:
exec_msg = "generating %s from %s" % (outfile, ', '.join(infiles))
# If 'outfile' must be regenerated (either because it doesn't
# exist, is out-of-date, or the 'force' flag is true) then
# perform the action that presumably regenerates it
if self.force or util.newer_group(infiles, outfile):
self.execute(func, args, exec_msg, level)
# Otherwise, print the "skip" message
else:
logger.debug(skip_msg)
def build_extension(self, ext):
sources = ext.sources
if sources is None or not isinstance(sources, (list, tuple)):
raise DistutilsSetupError, \
("in 'ext_modules' option (extension '%s'), " +
"'sources' must be present and must be " +
"a list of source filenames") % ext.name
sources = list(sources)
ext_path = self.get_ext_fullpath(ext.name)
depends = sources + ext.depends
if not (self.force or newer_group(depends, ext_path, 'newer')):
log.debug("skipping '%s' extension (up-to-date)", ext.name)
return
else:
log.info("building '%s' extension", ext.name)
# First, scan the sources for SWIG definition files (.i), run
# SWIG on 'em to create .c files, and modify the sources list
# accordingly.
sources = self.swig_sources(sources, ext)
# Next, compile the source code to object files.
# XXX not honouring 'define_macros' or 'undef_macros' -- the
# CCompiler API needs to change to accommodate this, and I
# want to do one thing at a time!
# Two possible sources for extra compiler arguments:
# - 'extra_compile_args' in Extension object
# - CFLAGS environment variable (not particularly
# elegant, but people seem to expect it and I
# guess it's useful)
# The environment variable should take precedence, and
# any sensible compiler will give precedence to later
# command line args. Hence we combine them in order:
extra_args = ext.extra_compile_args or []
macros = ext.define_macros[:]
for undef in ext.undef_macros:
macros.append((undef,))
objects = self.compiler_obj.compile(sources,
output_dir=self.build_temp,
macros=macros,
include_dirs=ext.include_dirs,
debug=self.debug,
extra_postargs=extra_args,
depends=ext.depends)
# XXX -- this is a Vile HACK!
#
# The setup.py script for Python on Unix needs to be able to
# get this list so it can perform all the clean up needed to
# avoid keeping object files around when cleaning out a failed
# build of an extension module. Since Distutils does not
# track dependencies, we have to get rid of intermediates to
# ensure all the intermediates will be properly re-built.
#
self._built_objects = objects[:]
# Now link the object files together into a "shared object" --
# of course, first we have to figure out all the other things
# that go into the mix.
if ext.extra_objects:
objects.extend(ext.extra_objects)
extra_args = ext.extra_link_args or []
# Detect target language, if not provided
language = ext.language or self.compiler_obj.detect_language(sources)
self.compiler_obj.link_shared_object(
objects, ext_path,
libraries=self.get_libraries(ext),
library_dirs=ext.library_dirs,
runtime_library_dirs=ext.runtime_library_dirs,
extra_postargs=extra_args,
export_symbols=self.get_export_symbols(ext),
debug=self.debug,
build_temp=self.build_temp,
target_lang=language)
def build_extension(self, ext):
sources = ext.sources
if sources is None or not isinstance(sources, (list, tuple)):
raise PackagingSetupError(
("in 'ext_modules' option (extension '%s'), " +
"'sources' must be present and must be " +
"a list of source filenames") % ext.name)
sources = list(sources)
ext_path = self.get_ext_fullpath(ext.name)
depends = sources + ext.depends
if not (self.force or newer_group(depends, ext_path, 'newer')):
logger.debug("skipping '%s' extension (up-to-date)", ext.name)
return
else:
logger.info("building '%s' extension", ext.name)
# First, scan the sources for SWIG definition files (.i), run
# SWIG on 'em to create .c files, and modify the sources list
# accordingly.
sources = self.swig_sources(sources, ext)
# Next, compile the source code to object files.
# XXX not honouring 'define_macros' or 'undef_macros' -- the
# CCompiler API needs to change to accommodate this, and I
# want to do one thing at a time!
# Two possible sources for extra compiler arguments:
# - 'extra_compile_args' in Extension object
# - CFLAGS environment variable (not particularly
# elegant, but people seem to expect it and I
# guess it's useful)
# The environment variable should take precedence, and
# any sensible compiler will give precedence to later
# command-line args. Hence we combine them in order:
extra_args = ext.extra_compile_args or []
macros = ext.define_macros[:]
for undef in ext.undef_macros:
macros.append((undef, ))
objects = self.compiler_obj.compile(sources,
output_dir=self.build_temp,
macros=macros,
include_dirs=ext.include_dirs,
debug=self.debug,
extra_postargs=extra_args,
depends=ext.depends)
# XXX -- this is a Vile HACK!
#
# The setup.py script for Python on Unix needs to be able to
# get this list so it can perform all the clean up needed to
# avoid keeping object files around when cleaning out a failed
# build of an extension module. Since Packaging does not
# track dependencies, we have to get rid of intermediates to
# ensure all the intermediates will be properly re-built.
#
self._built_objects = objects[:]
# Now link the object files together into a "shared object" --
# of course, first we have to figure out all the other things
# that go into the mix.
if ext.extra_objects:
objects.extend(ext.extra_objects)
extra_args = ext.extra_link_args or []
# Detect target language, if not provided
language = ext.language or self.compiler_obj.detect_language(sources)
self.compiler_obj.link_shared_object(
objects,
ext_path,
libraries=self.get_libraries(ext),
library_dirs=ext.library_dirs,
runtime_library_dirs=ext.runtime_library_dirs,
extra_postargs=extra_args,
export_symbols=self.get_export_symbols(ext),
debug=self.debug,
build_temp=self.build_temp,
target_lang=language)
