initial import of the packaging package in the standard library
diff --git a/Lib/packaging/compiler/ccompiler.py b/Lib/packaging/compiler/ccompiler.py
new file mode 100644
index 0000000..551c5dc
--- /dev/null
+++ b/Lib/packaging/compiler/ccompiler.py
@@ -0,0 +1,868 @@
+"""Abstract base class for compilers.
+
+This modules contains CCompiler, an abstract base class that defines the
+interface for the compiler abstraction model used by packaging.
+"""
+
+import os
+import sys
+from shutil import move
+from packaging import logger
+from packaging.util import split_quoted, execute, newer_group, spawn
+from packaging.errors import (CompileError, LinkError, UnknownFileError)
+from packaging.compiler import gen_preprocess_options
+
+
+class CCompiler:
+ """Abstract base class to define the interface that must be implemented
+ by real compiler classes. Also has some utility methods used by
+ several compiler classes.
+
+ The basic idea behind a compiler abstraction class is that each
+ instance can be used for all the compile/link steps in building a
+ single project. Thus, attributes common to all of those compile and
+ link steps -- include directories, macros to define, libraries to link
+ against, etc. -- are attributes of the compiler instance. To allow for
+ variability in how individual files are treated, most of those
+ attributes may be varied on a per-compilation or per-link basis.
+ """
+
+ # 'name' is a class attribute that identifies this class. It
+ # keeps code that wants to know what kind of compiler it's dealing with
+ # from having to import all possible compiler classes just to do an
+ # 'isinstance'.
+ name = None
+ description = None
+
+ # XXX things not handled by this compiler abstraction model:
+ # * client can't provide additional options for a compiler,
+ # e.g. warning, optimization, debugging flags. Perhaps this
+ # should be the domain of concrete compiler abstraction classes
+ # (UnixCCompiler, MSVCCompiler, etc.) -- or perhaps the base
+ # class should have methods for the common ones.
+ # * can't completely override the include or library searchg
+ # path, ie. no "cc -I -Idir1 -Idir2" or "cc -L -Ldir1 -Ldir2".
+ # I'm not sure how widely supported this is even by Unix
+ # compilers, much less on other platforms. And I'm even less
+ # sure how useful it is; maybe for cross-compiling, but
+ # support for that is a ways off. (And anyways, cross
+ # compilers probably have a dedicated binary with the
+ # right paths compiled in. I hope.)
+ # * can't do really freaky things with the library list/library
+ # dirs, e.g. "-Ldir1 -lfoo -Ldir2 -lfoo" to link against
+ # different versions of libfoo.a in different locations. I
+ # think this is useless without the ability to null out the
+ # library search path anyways.
+
+
+ # Subclasses that rely on the standard filename generation methods
+ # implemented below should override these; see the comment near
+ # those methods ('object_filenames()' et. al.) for details:
+ src_extensions = None # list of strings
+ obj_extension = None # string
+ static_lib_extension = None
+ shared_lib_extension = None # string
+ static_lib_format = None # format string
+ shared_lib_format = None # prob. same as static_lib_format
+ exe_extension = None # string
+
+ # Default language settings. language_map is used to detect a source
+ # file or Extension target language, checking source filenames.
+ # language_order is used to detect the language precedence, when deciding
+ # what language to use when mixing source types. For example, if some
+ # extension has two files with ".c" extension, and one with ".cpp", it
+ # is still linked as c++.
+ language_map = {".c": "c",
+ ".cc": "c++",
+ ".cpp": "c++",
+ ".cxx": "c++",
+ ".m": "objc",
+ }
+ language_order = ["c++", "objc", "c"]
+
+ def __init__(self, verbose=0, dry_run=False, force=False):
+ self.dry_run = dry_run
+ self.force = force
+ self.verbose = verbose
+
+ # 'output_dir': a common output directory for object, library,
+ # shared object, and shared library files
+ self.output_dir = None
+
+ # 'macros': a list of macro definitions (or undefinitions). A
+ # macro definition is a 2-tuple (name, value), where the value is
+ # either a string or None (no explicit value). A macro
+ # undefinition is a 1-tuple (name,).
+ self.macros = []
+
+ # 'include_dirs': a list of directories to search for include files
+ self.include_dirs = []
+
+ # 'libraries': a list of libraries to include in any link
+ # (library names, not filenames: eg. "foo" not "libfoo.a")
+ self.libraries = []
+
+ # 'library_dirs': a list of directories to search for libraries
+ self.library_dirs = []
+
+ # 'runtime_library_dirs': a list of directories to search for
+ # shared libraries/objects at runtime
+ self.runtime_library_dirs = []
+
+ # 'objects': a list of object files (or similar, such as explicitly
+ # named library files) to include on any link
+ self.objects = []
+
+ for key, value in self.executables.items():
+ self.set_executable(key, value)
+
+ def set_executables(self, **args):
+ """Define the executables (and options for them) that will be run
+ to perform the various stages of compilation. The exact set of
+ executables that may be specified here depends on the compiler
+ class (via the 'executables' class attribute), but most will have:
+ compiler the C/C++ compiler
+ linker_so linker used to create shared objects and libraries
+ linker_exe linker used to create binary executables
+ archiver static library creator
+
+ On platforms with a command line (Unix, DOS/Windows), each of these
+ is a string that will be split into executable name and (optional)
+ list of arguments. (Splitting the string is done similarly to how
+ Unix shells operate: words are delimited by spaces, but quotes and
+ backslashes can override this. See
+ 'distutils.util.split_quoted()'.)
+ """
+
+ # Note that some CCompiler implementation classes will define class
+ # attributes 'cpp', 'cc', etc. with hard-coded executable names;
+ # this is appropriate when a compiler class is for exactly one
+ # compiler/OS combination (eg. MSVCCompiler). Other compiler
+ # classes (UnixCCompiler, in particular) are driven by information
+ # discovered at run-time, since there are many different ways to do
+ # basically the same things with Unix C compilers.
+
+ for key, value in args.items():
+ if key not in self.executables:
+ raise ValueError("unknown executable '%s' for class %s" % \
+ (key, self.__class__.__name__))
+ self.set_executable(key, value)
+
+ def set_executable(self, key, value):
+ if isinstance(value, str):
+ setattr(self, key, split_quoted(value))
+ else:
+ setattr(self, key, value)
+
+ def _find_macro(self, name):
+ i = 0
+ for defn in self.macros:
+ if defn[0] == name:
+ return i
+ i = i + 1
+ return None
+
+ def _check_macro_definitions(self, definitions):
+ """Ensures that every element of 'definitions' is a valid macro
+ definition, ie. either (name,value) 2-tuple or a (name,) tuple. Do
+ nothing if all definitions are OK, raise TypeError otherwise.
+ """
+ for defn in definitions:
+ if not (isinstance(defn, tuple) and
+ (len(defn) == 1 or
+ (len(defn) == 2 and
+ (isinstance(defn[1], str) or defn[1] is None))) and
+ isinstance(defn[0], str)):
+ raise TypeError(("invalid macro definition '%s': " % defn) + \
+ "must be tuple (string,), (string, string), or " + \
+ "(string, None)")
+
+
+ # -- Bookkeeping methods -------------------------------------------
+
+ def define_macro(self, name, value=None):
+ """Define a preprocessor macro for all compilations driven by this
+ compiler object. The optional parameter 'value' should be a
+ string; if it is not supplied, then the macro will be defined
+ without an explicit value and the exact outcome depends on the
+ compiler used (XXX true? does ANSI say anything about this?)
+ """
+ # Delete from the list of macro definitions/undefinitions if
+ # already there (so that this one will take precedence).
+ i = self._find_macro(name)
+ if i is not None:
+ del self.macros[i]
+
+ defn = (name, value)
+ self.macros.append(defn)
+
+ def undefine_macro(self, name):
+ """Undefine a preprocessor macro for all compilations driven by
+ this compiler object. If the same macro is defined by
+ 'define_macro()' and undefined by 'undefine_macro()' the last call
+ takes precedence (including multiple redefinitions or
+ undefinitions). If the macro is redefined/undefined on a
+ per-compilation basis (ie. in the call to 'compile()'), then that
+ takes precedence.
+ """
+ # Delete from the list of macro definitions/undefinitions if
+ # already there (so that this one will take precedence).
+ i = self._find_macro(name)
+ if i is not None:
+ del self.macros[i]
+
+ undefn = (name,)
+ self.macros.append(undefn)
+
+ def add_include_dir(self, dir):
+ """Add 'dir' to the list of directories that will be searched for
+ header files. The compiler is instructed to search directories in
+ the order in which they are supplied by successive calls to
+ 'add_include_dir()'.
+ """
+ self.include_dirs.append(dir)
+
+ def set_include_dirs(self, dirs):
+ """Set the list of directories that will be searched to 'dirs' (a
+ list of strings). Overrides any preceding calls to
+ 'add_include_dir()'; subsequence calls to 'add_include_dir()' add
+ to the list passed to 'set_include_dirs()'. This does not affect
+ any list of standard include directories that the compiler may
+ search by default.
+ """
+ self.include_dirs = dirs[:]
+
+ def add_library(self, libname):
+ """Add 'libname' to the list of libraries that will be included in
+ all links driven by this compiler object. Note that 'libname'
+ should *not* be the name of a file containing a library, but the
+ name of the library itself: the actual filename will be inferred by
+ the linker, the compiler, or the compiler class (depending on the
+ platform).
+
+ The linker will be instructed to link against libraries in the
+ order they were supplied to 'add_library()' and/or
+ 'set_libraries()'. It is perfectly valid to duplicate library
+ names; the linker will be instructed to link against libraries as
+ many times as they are mentioned.
+ """
+ self.libraries.append(libname)
+
+ def set_libraries(self, libnames):
+ """Set the list of libraries to be included in all links driven by
+ this compiler object to 'libnames' (a list of strings). This does
+ not affect any standard system libraries that the linker may
+ include by default.
+ """
+ self.libraries = libnames[:]
+
+
+ def add_library_dir(self, dir):
+ """Add 'dir' to the list of directories that will be searched for
+ libraries specified to 'add_library()' and 'set_libraries()'. The
+ linker will be instructed to search for libraries in the order they
+ are supplied to 'add_library_dir()' and/or 'set_library_dirs()'.
+ """
+ self.library_dirs.append(dir)
+
+ def set_library_dirs(self, dirs):
+ """Set the list of library search directories to 'dirs' (a list of
+ strings). This does not affect any standard library search path
+ that the linker may search by default.
+ """
+ self.library_dirs = dirs[:]
+
+ def add_runtime_library_dir(self, dir):
+ """Add 'dir' to the list of directories that will be searched for
+ shared libraries at runtime.
+ """
+ self.runtime_library_dirs.append(dir)
+
+ def set_runtime_library_dirs(self, dirs):
+ """Set the list of directories to search for shared libraries at
+ runtime to 'dirs' (a list of strings). This does not affect any
+ standard search path that the runtime linker may search by
+ default.
+ """
+ self.runtime_library_dirs = dirs[:]
+
+ def add_link_object(self, object):
+ """Add 'object' to the list of object files (or analogues, such as
+ explicitly named library files or the output of "resource
+ compilers") to be included in every link driven by this compiler
+ object.
+ """
+ self.objects.append(object)
+
+ def set_link_objects(self, objects):
+ """Set the list of object files (or analogues) to be included in
+ every link to 'objects'. This does not affect any standard object
+ files that the linker may include by default (such as system
+ libraries).
+ """
+ self.objects = objects[:]
+
+
+ # -- Private utility methods --------------------------------------
+ # (here for the convenience of subclasses)
+
+ # Helper method to prep compiler in subclass compile() methods
+ def _setup_compile(self, outdir, macros, incdirs, sources, depends,
+ extra):
+ """Process arguments and decide which source files to compile."""
+ if outdir is None:
+ outdir = self.output_dir
+ elif not isinstance(outdir, str):
+ raise TypeError("'output_dir' must be a string or None")
+
+ if macros is None:
+ macros = self.macros
+ elif isinstance(macros, list):
+ macros = macros + (self.macros or [])
+ else:
+ raise TypeError("'macros' (if supplied) must be a list of tuples")
+
+ if incdirs is None:
+ incdirs = self.include_dirs
+ elif isinstance(incdirs, (list, tuple)):
+ incdirs = list(incdirs) + (self.include_dirs or [])
+ else:
+ raise TypeError(
+ "'include_dirs' (if supplied) must be a list of strings")
+
+ if extra is None:
+ extra = []
+
+ # Get the list of expected output (object) files
+ objects = self.object_filenames(sources,
+ strip_dir=False,
+ output_dir=outdir)
+ assert len(objects) == len(sources)
+
+ pp_opts = gen_preprocess_options(macros, incdirs)
+
+ build = {}
+ for i in range(len(sources)):
+ src = sources[i]
+ obj = objects[i]
+ ext = os.path.splitext(src)[1]
+ self.mkpath(os.path.dirname(obj))
+ build[obj] = (src, ext)
+
+ return macros, objects, extra, pp_opts, build
+
+ def _get_cc_args(self, pp_opts, debug, before):
+ # works for unixccompiler, emxccompiler, cygwinccompiler
+ cc_args = pp_opts + ['-c']
+ if debug:
+ cc_args[:0] = ['-g']
+ if before:
+ cc_args[:0] = before
+ return cc_args
+
+ def _fix_compile_args(self, output_dir, macros, include_dirs):
+ """Typecheck and fix-up some of the arguments to the 'compile()'
+ method, and return fixed-up values. Specifically: if 'output_dir'
+ is None, replaces it with 'self.output_dir'; ensures that 'macros'
+ is a list, and augments it with 'self.macros'; ensures that
+ 'include_dirs' is a list, and augments it with 'self.include_dirs'.
+ Guarantees that the returned values are of the correct type,
+ i.e. for 'output_dir' either string or None, and for 'macros' and
+ 'include_dirs' either list or None.
+ """
+ if output_dir is None:
+ output_dir = self.output_dir
+ elif not isinstance(output_dir, str):
+ raise TypeError("'output_dir' must be a string or None")
+
+ if macros is None:
+ macros = self.macros
+ elif isinstance(macros, list):
+ macros = macros + (self.macros or [])
+ else:
+ raise TypeError("'macros' (if supplied) must be a list of tuples")
+
+ if include_dirs is None:
+ include_dirs = self.include_dirs
+ elif isinstance(include_dirs, (list, tuple)):
+ include_dirs = list(include_dirs) + (self.include_dirs or [])
+ else:
+ raise TypeError(
+ "'include_dirs' (if supplied) must be a list of strings")
+
+ return output_dir, macros, include_dirs
+
+ def _fix_object_args(self, objects, output_dir):
+ """Typecheck and fix up some arguments supplied to various methods.
+ Specifically: ensure that 'objects' is a list; if output_dir is
+ None, replace with self.output_dir. Return fixed versions of
+ 'objects' and 'output_dir'.
+ """
+ if not isinstance(objects, (list, tuple)):
+ raise TypeError("'objects' must be a list or tuple of strings")
+ objects = list(objects)
+
+ if output_dir is None:
+ output_dir = self.output_dir
+ elif not isinstance(output_dir, str):
+ raise TypeError("'output_dir' must be a string or None")
+
+ return objects, output_dir
+
+ def _fix_lib_args(self, libraries, library_dirs, runtime_library_dirs):
+ """Typecheck and fix up some of the arguments supplied to the
+ 'link_*' methods. Specifically: ensure that all arguments are
+ lists, and augment them with their permanent versions
+ (eg. 'self.libraries' augments 'libraries'). Return a tuple with
+ fixed versions of all arguments.
+ """
+ if libraries is None:
+ libraries = self.libraries
+ elif isinstance(libraries, (list, tuple)):
+ libraries = list(libraries) + (self.libraries or [])
+ else:
+ raise TypeError(
+ "'libraries' (if supplied) must be a list of strings")
+
+ if library_dirs is None:
+ library_dirs = self.library_dirs
+ elif isinstance(library_dirs, (list, tuple)):
+ library_dirs = list(library_dirs) + (self.library_dirs or [])
+ else:
+ raise TypeError(
+ "'library_dirs' (if supplied) must be a list of strings")
+
+ if runtime_library_dirs is None:
+ runtime_library_dirs = self.runtime_library_dirs
+ elif isinstance(runtime_library_dirs, (list, tuple)):
+ runtime_library_dirs = (list(runtime_library_dirs) +
+ (self.runtime_library_dirs or []))
+ else:
+ raise TypeError("'runtime_library_dirs' (if supplied) "
+ "must be a list of strings")
+
+ return libraries, library_dirs, runtime_library_dirs
+
+ 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 detect_language(self, sources):
+ """Detect the language of a given file, or list of files. Uses
+ language_map, and language_order to do the job.
+ """
+ if not isinstance(sources, list):
+ sources = [sources]
+ lang = None
+ index = len(self.language_order)
+ for source in sources:
+ base, ext = os.path.splitext(source)
+ extlang = self.language_map.get(ext)
+ try:
+ extindex = self.language_order.index(extlang)
+ if extindex < index:
+ lang = extlang
+ index = extindex
+ except ValueError:
+ pass
+ return lang
+
+ # -- Worker methods ------------------------------------------------
+ # (must be implemented by subclasses)
+
+ def preprocess(self, source, output_file=None, macros=None,
+ include_dirs=None, extra_preargs=None, extra_postargs=None):
+ """Preprocess a single C/C++ source file, named in 'source'.
+ Output will be written to file named 'output_file', or stdout if
+ 'output_file' not supplied. 'macros' is a list of macro
+ definitions as for 'compile()', which will augment the macros set
+ with 'define_macro()' and 'undefine_macro()'. 'include_dirs' is a
+ list of directory names that will be added to the default list.
+
+ Raises PreprocessError on failure.
+ """
+ pass
+
+ def compile(self, sources, output_dir=None, macros=None,
+ include_dirs=None, debug=False, extra_preargs=None,
+ extra_postargs=None, depends=None):
+ """Compile one or more source files.
+
+ 'sources' must be a list of filenames, most likely C/C++
+ files, but in reality anything that can be handled by a
+ particular compiler and compiler class (eg. MSVCCompiler can
+ handle resource files in 'sources'). Return a list of object
+ filenames, one per source filename in 'sources'. Depending on
+ the implementation, not all source files will necessarily be
+ compiled, but all corresponding object filenames will be
+ returned.
+
+ If 'output_dir' is given, object files will be put under it, while
+ retaining their original path component. That is, "foo/bar.c"
+ normally compiles to "foo/bar.o" (for a Unix implementation); if
+ 'output_dir' is "build", then it would compile to
+ "build/foo/bar.o".
+
+ 'macros', if given, must be a list of macro definitions. A macro
+ definition is either a (name, value) 2-tuple or a (name,) 1-tuple.
+ The former defines a macro; if the value is None, the macro is
+ defined without an explicit value. The 1-tuple case undefines a
+ macro. Later definitions/redefinitions/ undefinitions take
+ precedence.
+
+ 'include_dirs', if given, must be a list of strings, the
+ directories to add to the default include file search path for this
+ compilation only.
+
+ 'debug' is a boolean; if true, the compiler will be instructed to
+ output debug symbols in (or alongside) the object file(s).
+
+ 'extra_preargs' and 'extra_postargs' are implementation- dependent.
+ On platforms that have the notion of a command line (e.g. Unix,
+ DOS/Windows), they are most likely lists of strings: extra
+ command-line arguments to prepand/append to the compiler command
+ line. On other platforms, consult the implementation class
+ documentation. In any event, they are intended as an escape hatch
+ for those occasions when the abstract compiler framework doesn't
+ cut the mustard.
+
+ 'depends', if given, is a list of filenames that all targets
+ depend on. If a source file is older than any file in
+ depends, then the source file will be recompiled. This
+ supports dependency tracking, but only at a coarse
+ granularity.
+
+ Raises CompileError on failure.
+ """
+ # A concrete compiler class can either override this method
+ # entirely or implement _compile().
+
+ macros, objects, extra_postargs, pp_opts, build = \
+ self._setup_compile(output_dir, macros, include_dirs, sources,
+ depends, extra_postargs)
+ cc_args = self._get_cc_args(pp_opts, debug, extra_preargs)
+
+ for obj in objects:
+ try:
+ src, ext = build[obj]
+ except KeyError:
+ continue
+ self._compile(obj, src, ext, cc_args, extra_postargs, pp_opts)
+
+ # Return *all* object filenames, not just the ones we just built.
+ return objects
+
+ def _compile(self, obj, src, ext, cc_args, extra_postargs, pp_opts):
+ """Compile 'src' to product 'obj'."""
+
+ # A concrete compiler class that does not override compile()
+ # should implement _compile().
+ pass
+
+ def create_static_lib(self, objects, output_libname, output_dir=None,
+ debug=False, target_lang=None):
+ """Link a bunch of stuff together to create a static library file.
+ The "bunch of stuff" consists of the list of object files supplied
+ as 'objects', the extra object files supplied to
+ 'add_link_object()' and/or 'set_link_objects()', the libraries
+ supplied to 'add_library()' and/or 'set_libraries()', and the
+ libraries supplied as 'libraries' (if any).
+
+ 'output_libname' should be a library name, not a filename; the
+ filename will be inferred from the library name. 'output_dir' is
+ the directory where the library file will be put.
+
+ 'debug' is a boolean; if true, debugging information will be
+ included in the library (note that on most platforms, it is the
+ compile step where this matters: the 'debug' flag is included here
+ just for consistency).
+
+ 'target_lang' is the target language for which the given objects
+ are being compiled. This allows specific linkage time treatment of
+ certain languages.
+
+ Raises LibError on failure.
+ """
+ pass
+
+ # values for target_desc parameter in link()
+ SHARED_OBJECT = "shared_object"
+ SHARED_LIBRARY = "shared_library"
+ EXECUTABLE = "executable"
+
+ def link(self, target_desc, objects, output_filename, output_dir=None,
+ libraries=None, library_dirs=None, runtime_library_dirs=None,
+ export_symbols=None, debug=False, extra_preargs=None,
+ extra_postargs=None, build_temp=None, target_lang=None):
+ """Link a bunch of stuff together to create an executable or
+ shared library file.
+
+ The "bunch of stuff" consists of the list of object files supplied
+ as 'objects'. 'output_filename' should be a filename. If
+ 'output_dir' is supplied, 'output_filename' is relative to it
+ (i.e. 'output_filename' can provide directory components if
+ needed).
+
+ 'libraries' is a list of libraries to link against. These are
+ library names, not filenames, since they're translated into
+ filenames in a platform-specific way (eg. "foo" becomes "libfoo.a"
+ on Unix and "foo.lib" on DOS/Windows). However, they can include a
+ directory component, which means the linker will look in that
+ specific directory rather than searching all the normal locations.
+
+ 'library_dirs', if supplied, should be a list of directories to
+ search for libraries that were specified as bare library names
+ (ie. no directory component). These are on top of the system
+ default and those supplied to 'add_library_dir()' and/or
+ 'set_library_dirs()'. 'runtime_library_dirs' is a list of
+ directories that will be embedded into the shared library and used
+ to search for other shared libraries that *it* depends on at
+ run-time. (This may only be relevant on Unix.)
+
+ 'export_symbols' is a list of symbols that the shared library will
+ export. (This appears to be relevant only on Windows.)
+
+ 'debug' is as for 'compile()' and 'create_static_lib()', with the
+ slight distinction that it actually matters on most platforms (as
+ opposed to 'create_static_lib()', which includes a 'debug' flag
+ mostly for form's sake).
+
+ 'extra_preargs' and 'extra_postargs' are as for 'compile()' (except
+ of course that they supply command-line arguments for the
+ particular linker being used).
+
+ 'target_lang' is the target language for which the given objects
+ are being compiled. This allows specific linkage time treatment of
+ certain languages.
+
+ Raises LinkError on failure.
+ """
+ raise NotImplementedError
+
+
+ # Old 'link_*()' methods, rewritten to use the new 'link()' method.
+
+ def link_shared_lib(self, objects, output_libname, output_dir=None,
+ libraries=None, library_dirs=None,
+ runtime_library_dirs=None, export_symbols=None,
+ debug=False, extra_preargs=None, extra_postargs=None,
+ build_temp=None, target_lang=None):
+ self.link(CCompiler.SHARED_LIBRARY, objects,
+ self.library_filename(output_libname, lib_type='shared'),
+ output_dir,
+ libraries, library_dirs, runtime_library_dirs,
+ export_symbols, debug,
+ extra_preargs, extra_postargs, build_temp, target_lang)
+
+ def link_shared_object(self, objects, output_filename, output_dir=None,
+ libraries=None, library_dirs=None,
+ runtime_library_dirs=None, export_symbols=None,
+ debug=False, extra_preargs=None, extra_postargs=None,
+ build_temp=None, target_lang=None):
+ self.link(CCompiler.SHARED_OBJECT, objects,
+ output_filename, output_dir,
+ libraries, library_dirs, runtime_library_dirs,
+ export_symbols, debug,
+ extra_preargs, extra_postargs, build_temp, target_lang)
+
+ def link_executable(self, objects, output_progname, output_dir=None,
+ libraries=None, library_dirs=None,
+ runtime_library_dirs=None, debug=False,
+ extra_preargs=None, extra_postargs=None,
+ target_lang=None):
+ self.link(CCompiler.EXECUTABLE, objects,
+ self.executable_filename(output_progname), output_dir,
+ libraries, library_dirs, runtime_library_dirs, None,
+ debug, extra_preargs, extra_postargs, None, target_lang)
+
+
+ # -- Miscellaneous methods -----------------------------------------
+ # These are all used by the 'gen_lib_options() function; there is
+ # no appropriate default implementation so subclasses should
+ # implement all of these.
+
+ def library_dir_option(self, dir):
+ """Return the compiler option to add 'dir' to the list of
+ directories searched for libraries.
+ """
+ raise NotImplementedError
+
+ def runtime_library_dir_option(self, dir):
+ """Return the compiler option to add 'dir' to the list of
+ directories searched for runtime libraries.
+ """
+ raise NotImplementedError
+
+ def library_option(self, lib):
+ """Return the compiler option to add 'dir' to the list of libraries
+ linked into the shared library or executable.
+ """
+ raise NotImplementedError
+
+ def has_function(self, funcname, includes=None, include_dirs=None,
+ libraries=None, library_dirs=None):
+ """Return a boolean indicating whether funcname is supported on
+ the current platform. The optional arguments can be used to
+ augment the compilation environment.
+ """
+
+ # this can't be included at module scope because it tries to
+ # import math which might not be available at that point - maybe
+ # the necessary logic should just be inlined?
+ import tempfile
+ if includes is None:
+ includes = []
+ if include_dirs is None:
+ include_dirs = []
+ if libraries is None:
+ libraries = []
+ if library_dirs is None:
+ library_dirs = []
+ fd, fname = tempfile.mkstemp(".c", funcname, text=True)
+ f = os.fdopen(fd, "w")
+ try:
+ for incl in includes:
+ f.write("""#include "%s"\n""" % incl)
+ f.write("""\
+main (int argc, char **argv) {
+ %s();
+}
+""" % funcname)
+ finally:
+ f.close()
+ try:
+ objects = self.compile([fname], include_dirs=include_dirs)
+ except CompileError:
+ return False
+
+ try:
+ self.link_executable(objects, "a.out",
+ libraries=libraries,
+ library_dirs=library_dirs)
+ except (LinkError, TypeError):
+ return False
+ return True
+
+ def find_library_file(self, dirs, lib, debug=False):
+ """Search the specified list of directories for a static or shared
+ library file 'lib' and return the full path to that file. If
+ 'debug' is true, look for a debugging version (if that makes sense on
+ the current platform). Return None if 'lib' wasn't found in any of
+ the specified directories.
+ """
+ raise NotImplementedError
+
+ # -- Filename generation methods -----------------------------------
+
+ # The default implementation of the filename generating methods are
+ # prejudiced towards the Unix/DOS/Windows view of the world:
+ # * object files are named by replacing the source file extension
+ # (eg. .c/.cpp -> .o/.obj)
+ # * library files (shared or static) are named by plugging the
+ # library name and extension into a format string, eg.
+ # "lib%s.%s" % (lib_name, ".a") for Unix static libraries
+ # * executables are named by appending an extension (possibly
+ # empty) to the program name: eg. progname + ".exe" for
+ # Windows
+ #
+ # To reduce redundant code, these methods expect to find
+ # several attributes in the current object (presumably defined
+ # as class attributes):
+ # * src_extensions -
+ # list of C/C++ source file extensions, eg. ['.c', '.cpp']
+ # * obj_extension -
+ # object file extension, eg. '.o' or '.obj'
+ # * static_lib_extension -
+ # extension for static library files, eg. '.a' or '.lib'
+ # * shared_lib_extension -
+ # extension for shared library/object files, eg. '.so', '.dll'
+ # * static_lib_format -
+ # format string for generating static library filenames,
+ # eg. 'lib%s.%s' or '%s.%s'
+ # * shared_lib_format
+ # format string for generating shared library filenames
+ # (probably same as static_lib_format, since the extension
+ # is one of the intended parameters to the format string)
+ # * exe_extension -
+ # extension for executable files, eg. '' or '.exe'
+
+ def object_filenames(self, source_filenames, strip_dir=False, output_dir=''):
+ if output_dir is None:
+ output_dir = ''
+ obj_names = []
+ for src_name in source_filenames:
+ base, ext = os.path.splitext(src_name)
+ base = os.path.splitdrive(base)[1] # Chop off the drive
+ base = base[os.path.isabs(base):] # If abs, chop off leading /
+ if ext not in self.src_extensions:
+ raise UnknownFileError("unknown file type '%s' (from '%s')" %
+ (ext, src_name))
+ if strip_dir:
+ base = os.path.basename(base)
+ obj_names.append(os.path.join(output_dir,
+ base + self.obj_extension))
+ return obj_names
+
+ def shared_object_filename(self, basename, strip_dir=False, output_dir=''):
+ assert output_dir is not None
+ if strip_dir:
+ basename = os.path.basename(basename)
+ return os.path.join(output_dir, basename + self.shared_lib_extension)
+
+ def executable_filename(self, basename, strip_dir=False, output_dir=''):
+ assert output_dir is not None
+ if strip_dir:
+ basename = os.path.basename(basename)
+ return os.path.join(output_dir, basename + (self.exe_extension or ''))
+
+ def library_filename(self, libname, lib_type='static', # or 'shared'
+ strip_dir=False, output_dir=''):
+ assert output_dir is not None
+ if lib_type not in ("static", "shared", "dylib"):
+ raise ValueError(
+ "'lib_type' must be 'static', 'shared' or 'dylib'")
+ fmt = getattr(self, lib_type + "_lib_format")
+ ext = getattr(self, lib_type + "_lib_extension")
+
+ dir, base = os.path.split(libname)
+ filename = fmt % (base, ext)
+ if strip_dir:
+ dir = ''
+
+ return os.path.join(output_dir, dir, filename)
+
+
+ # -- Utility methods -----------------------------------------------
+
+ def execute(self, func, args, msg=None, level=1):
+ execute(func, args, msg, self.dry_run)
+
+ def spawn(self, cmd):
+ spawn(cmd, dry_run=self.dry_run)
+
+ def move_file(self, src, dst):
+ logger.info("moving %r to %r", src, dst)
+ if self.dry_run:
+ return
+ return move(src, dst)
+
+ def mkpath(self, name, mode=0o777):
+ name = os.path.normpath(name)
+ if os.path.isdir(name) or name == '':
+ return
+ if self.dry_run:
+ head = ''
+ for part in name.split(os.sep):
+ logger.info("created directory %s%s", head, part)
+ head += part + os.sep
+ return
+ os.makedirs(name, mode)