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Diffstat (limited to 'Lib/packaging/compiler/ccompiler.py')
| -rw-r--r-- | Lib/packaging/compiler/ccompiler.py | 863 |
1 files changed, 0 insertions, 863 deletions
diff --git a/Lib/packaging/compiler/ccompiler.py b/Lib/packaging/compiler/ccompiler.py deleted file mode 100644 index 98c4b68..0000000 --- a/Lib/packaging/compiler/ccompiler.py +++ /dev/null @@ -1,863 +0,0 @@ -"""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 -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, dry_run=False, force=False): - self.dry_run = dry_run - self.force = force - - # '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 and 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) - with os.fdopen(fd, "w") as f: - for incl in includes: - f.write("""#include "%s"\n""" % incl) - f.write("""\ -main (int argc, char **argv) { - %s(); -} -""" % funcname) - 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) |