| Python setup.py |
| 1 | def add_dir_to_list(dirlist, dir): """Add the directory 'dir' to the list 'dirlist' (at the front) if 1) 'dir' is not already in 'dirlist' 2) 'dir' actually exists, and is a directory.""" if dir is not None and os.path.isdir(dir) and dir not in dirlist: dirlist.insert(0, dir) |
| 2 | def macosx_sdk_root(): """ Return the directory of the current OSX SDK, or '/' if no SDK was specified. """ cflags = sysconfig.get_config_var('CFLAGS') m = re.search(r'-isysroot\s+(\S+)', cflags) if m is None: sysroot = '/' else: sysroot = m.group(1) return sysroot |
| 3 | def is_macosx_sdk_path(path): """ Returns True if 'path' can be located in an OSX SDK """ return (path.startswith('/usr/') and not path.startswith('/usr/local')) or path.startswith('/System/') |
| 4 | def find_file(filename, std_dirs, paths): """Searches for the directory where a given file is located, and returns a possibly-empty list of additional directories, or None if the file couldn't be found at all. |
| 5 | 'filename' is the name of a file, such as readline.h or libcrypto.a. 'std_dirs' is the list of standard system directories; if the file is found in one of them, no additional directives are needed. 'paths' is a list of additional locations to check; if the file is found in one of them, the resulting list will contain the directory. """ if sys.platform == 'darwin': # Honor the MacOSX SDK setting when one was specified. # An SDK is a directory with the same structure as a real # system, but with only header files and libraries. sysroot = macosx_sdk_root() # Check the standard locations for dir in std_dirs: f = os.path.join(dir, filename) if sys.platform == 'darwin' and is_macosx_sdk_path(dir): f = os.path.join(sysroot, dir[1:], filename) if os.path.exists(f): return [] # Check the additional directories for dir in paths: f = os.path.join(dir, filename) if sys.platform == 'darwin' and is_macosx_sdk_path(dir): f = os.path.join(sysroot, dir[1:], filename) if os.path.exists(f): return [dir] # Not found anywhere return None |
| 6 | def find_library_file(compiler, libname, std_dirs, paths): result = compiler.find_library_file(std_dirs + paths, libname) if result is None: return None if sys.platform == 'darwin': sysroot = macosx_sdk_root() # Check whether the found file is in one of the standard directories dirname = os.path.dirname(result) for p in std_dirs: # Ensure path doesn't end with path separator p = p.rstrip(os.sep) if sys.platform == 'darwin' and is_macosx_sdk_path(p): if os.path.join(sysroot, p[1:]) == dirname: return [ ] if p == dirname: return [ ] # Otherwise, it must have been in one of the additional directories, # so we have to figure out which one. for p in paths: # Ensure path doesn't end with path separator p = p.rstrip(os.sep) if sys.platform == 'darwin' and is_macosx_sdk_path(p): if os.path.join(sysroot, p[1:]) == dirname: return [ p ] if p == dirname: return [p] else: assert False, "Internal error: Path not found in std_dirs or paths" |
| 7 | def module_enabled(extlist, modname): """Returns whether the module 'modname' is present in the list of extensions 'extlist'.""" extlist = [ext for ext in extlist if ext.name == modname] return len(extlist) |
| 8 | def find_module_file(module, dirlist): """Find a module in a set of possible folders. If it is not found return the unadorned filename""" list = find_file(module, [], dirlist) if not list: return module if len(list) > 1: log.info("WARNING: multiple copies of %s found"%module) return os.path.join(list[0], module) |
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