diff options
Diffstat (limited to 'python/helpers/pydev/third_party')
| -rw-r--r-- | python/helpers/pydev/third_party/pkgutil_old.py | 591 | ||||
| -rw-r--r-- | python/helpers/pydev/third_party/pluginbase.py | 454 | ||||
| -rw-r--r-- | python/helpers/pydev/third_party/uuid_old.py | 541 |
3 files changed, 1586 insertions, 0 deletions
diff --git a/python/helpers/pydev/third_party/pkgutil_old.py b/python/helpers/pydev/third_party/pkgutil_old.py new file mode 100644 index 000000000000..ce072ec9ef75 --- /dev/null +++ b/python/helpers/pydev/third_party/pkgutil_old.py @@ -0,0 +1,591 @@ +"""Utilities to support packages.""" + +# NOTE: This module must remain compatible with Python 2.3, as it is shared +# by setuptools for distribution with Python 2.3 and up. + +import os +import sys +import imp +import os.path +from types import ModuleType + +__all__ = [ + 'get_importer', 'iter_importers', 'get_loader', 'find_loader', + 'walk_packages', 'iter_modules', 'get_data', + 'ImpImporter', 'ImpLoader', 'read_code', 'extend_path', +] + +def read_code(stream): + # This helper is needed in order for the PEP 302 emulation to + # correctly handle compiled files + import marshal + + magic = stream.read(4) + if magic != imp.get_magic(): + return None + + stream.read(4) # Skip timestamp + return marshal.load(stream) + + +def simplegeneric(func): + """Make a trivial single-dispatch generic function""" + registry = {} + def wrapper(*args, **kw): + ob = args[0] + try: + cls = ob.__class__ + except AttributeError: + cls = type(ob) + try: + mro = cls.__mro__ + except AttributeError: + try: + class cls(cls, object): + pass + mro = cls.__mro__[1:] + except TypeError: + mro = object, # must be an ExtensionClass or some such :( + for t in mro: + if t in registry: + return registry[t](*args, **kw) + else: + return func(*args, **kw) + try: + wrapper.__name__ = func.__name__ + except (TypeError, AttributeError): + pass # Python 2.3 doesn't allow functions to be renamed + + def register(typ, func=None): + if func is None: + return lambda f: register(typ, f) + registry[typ] = func + return func + + wrapper.__dict__ = func.__dict__ + wrapper.__doc__ = func.__doc__ + wrapper.register = register + return wrapper + + +def walk_packages(path=None, prefix='', onerror=None): + """Yields (module_loader, name, ispkg) for all modules recursively + on path, or, if path is None, all accessible modules. + + 'path' should be either None or a list of paths to look for + modules in. + + 'prefix' is a string to output on the front of every module name + on output. + + Note that this function must import all *packages* (NOT all + modules!) on the given path, in order to access the __path__ + attribute to find submodules. + + 'onerror' is a function which gets called with one argument (the + name of the package which was being imported) if any exception + occurs while trying to import a package. If no onerror function is + supplied, ImportErrors are caught and ignored, while all other + exceptions are propagated, terminating the search. + + Examples: + + # list all modules python can access + walk_packages() + + # list all submodules of ctypes + walk_packages(ctypes.__path__, ctypes.__name__+'.') + """ + + def seen(p, m={}): + if p in m: + return True + m[p] = True + + for importer, name, ispkg in iter_modules(path, prefix): + yield importer, name, ispkg + + if ispkg: + try: + __import__(name) + except ImportError: + if onerror is not None: + onerror(name) + except Exception: + if onerror is not None: + onerror(name) + else: + raise + else: + path = getattr(sys.modules[name], '__path__', None) or [] + + # don't traverse path items we've seen before + path = [p for p in path if not seen(p)] + + for item in walk_packages(path, name+'.', onerror): + yield item + + +def iter_modules(path=None, prefix=''): + """Yields (module_loader, name, ispkg) for all submodules on path, + or, if path is None, all top-level modules on sys.path. + + 'path' should be either None or a list of paths to look for + modules in. + + 'prefix' is a string to output on the front of every module name + on output. + """ + + if path is None: + importers = iter_importers() + else: + importers = map(get_importer, path) + + yielded = {} + for i in importers: + for name, ispkg in iter_importer_modules(i, prefix): + if name not in yielded: + yielded[name] = 1 + yield i, name, ispkg + + +#@simplegeneric +def iter_importer_modules(importer, prefix=''): + if not hasattr(importer, 'iter_modules'): + return [] + return importer.iter_modules(prefix) + +iter_importer_modules = simplegeneric(iter_importer_modules) + + +class ImpImporter: + """PEP 302 Importer that wraps Python's "classic" import algorithm + + ImpImporter(dirname) produces a PEP 302 importer that searches that + directory. ImpImporter(None) produces a PEP 302 importer that searches + the current sys.path, plus any modules that are frozen or built-in. + + Note that ImpImporter does not currently support being used by placement + on sys.meta_path. + """ + + def __init__(self, path=None): + self.path = path + + def find_module(self, fullname, path=None): + # Note: we ignore 'path' argument since it is only used via meta_path + subname = fullname.split(".")[-1] + if subname != fullname and self.path is None: + return None + if self.path is None: + path = None + else: + path = [os.path.realpath(self.path)] + try: + file, filename, etc = imp.find_module(subname, path) + except ImportError: + return None + return ImpLoader(fullname, file, filename, etc) + + def iter_modules(self, prefix=''): + if self.path is None or not os.path.isdir(self.path): + return + + yielded = {} + import inspect + try: + filenames = os.listdir(self.path) + except OSError: + # ignore unreadable directories like import does + filenames = [] + filenames.sort() # handle packages before same-named modules + + for fn in filenames: + modname = inspect.getmodulename(fn) + if modname=='__init__' or modname in yielded: + continue + + path = os.path.join(self.path, fn) + ispkg = False + + if not modname and os.path.isdir(path) and '.' not in fn: + modname = fn + try: + dircontents = os.listdir(path) + except OSError: + # ignore unreadable directories like import does + dircontents = [] + for fn in dircontents: + subname = inspect.getmodulename(fn) + if subname=='__init__': + ispkg = True + break + else: + continue # not a package + + if modname and '.' not in modname: + yielded[modname] = 1 + yield prefix + modname, ispkg + + +class ImpLoader: + """PEP 302 Loader that wraps Python's "classic" import algorithm + """ + code = source = None + + def __init__(self, fullname, file, filename, etc): + self.file = file + self.filename = filename + self.fullname = fullname + self.etc = etc + + def load_module(self, fullname): + self._reopen() + try: + mod = imp.load_module(fullname, self.file, self.filename, self.etc) + finally: + if self.file: + self.file.close() + # Note: we don't set __loader__ because we want the module to look + # normal; i.e. this is just a wrapper for standard import machinery + return mod + + def get_data(self, pathname): + return open(pathname, "rb").read() + + def _reopen(self): + if self.file and self.file.closed: + mod_type = self.etc[2] + if mod_type==imp.PY_SOURCE: + self.file = open(self.filename, 'rU') + elif mod_type in (imp.PY_COMPILED, imp.C_EXTENSION): + self.file = open(self.filename, 'rb') + + def _fix_name(self, fullname): + if fullname is None: + fullname = self.fullname + elif fullname != self.fullname: + raise ImportError("Loader for module %s cannot handle " + "module %s" % (self.fullname, fullname)) + return fullname + + def is_package(self, fullname): + fullname = self._fix_name(fullname) + return self.etc[2]==imp.PKG_DIRECTORY + + def get_code(self, fullname=None): + fullname = self._fix_name(fullname) + if self.code is None: + mod_type = self.etc[2] + if mod_type==imp.PY_SOURCE: + source = self.get_source(fullname) + self.code = compile(source, self.filename, 'exec') + elif mod_type==imp.PY_COMPILED: + self._reopen() + try: + self.code = read_code(self.file) + finally: + self.file.close() + elif mod_type==imp.PKG_DIRECTORY: + self.code = self._get_delegate().get_code() + return self.code + + def get_source(self, fullname=None): + fullname = self._fix_name(fullname) + if self.source is None: + mod_type = self.etc[2] + if mod_type==imp.PY_SOURCE: + self._reopen() + try: + self.source = self.file.read() + finally: + self.file.close() + elif mod_type==imp.PY_COMPILED: + if os.path.exists(self.filename[:-1]): + f = open(self.filename[:-1], 'rU') + self.source = f.read() + f.close() + elif mod_type==imp.PKG_DIRECTORY: + self.source = self._get_delegate().get_source() + return self.source + + + def _get_delegate(self): + return ImpImporter(self.filename).find_module('__init__') + + def get_filename(self, fullname=None): + fullname = self._fix_name(fullname) + mod_type = self.etc[2] + if self.etc[2]==imp.PKG_DIRECTORY: + return self._get_delegate().get_filename() + elif self.etc[2] in (imp.PY_SOURCE, imp.PY_COMPILED, imp.C_EXTENSION): + return self.filename + return None + + +try: + import zipimport + from zipimport import zipimporter + + def iter_zipimport_modules(importer, prefix=''): + dirlist = zipimport._zip_directory_cache[importer.archive].keys() + dirlist.sort() + _prefix = importer.prefix + plen = len(_prefix) + yielded = {} + import inspect + for fn in dirlist: + if not fn.startswith(_prefix): + continue + + fn = fn[plen:].split(os.sep) + + if len(fn)==2 and fn[1].startswith('__init__.py'): + if fn[0] not in yielded: + yielded[fn[0]] = 1 + yield fn[0], True + + if len(fn)!=1: + continue + + modname = inspect.getmodulename(fn[0]) + if modname=='__init__': + continue + + if modname and '.' not in modname and modname not in yielded: + yielded[modname] = 1 + yield prefix + modname, False + + iter_importer_modules.register(zipimporter, iter_zipimport_modules) + +except ImportError: + pass + + +def get_importer(path_item): + """Retrieve a PEP 302 importer for the given path item + + The returned importer is cached in sys.path_importer_cache + if it was newly created by a path hook. + + If there is no importer, a wrapper around the basic import + machinery is returned. This wrapper is never inserted into + the importer cache (None is inserted instead). + + The cache (or part of it) can be cleared manually if a + rescan of sys.path_hooks is necessary. + """ + try: + importer = sys.path_importer_cache[path_item] + except KeyError: + for path_hook in sys.path_hooks: + try: + importer = path_hook(path_item) + break + except ImportError: + pass + else: + importer = None + sys.path_importer_cache.setdefault(path_item, importer) + + if importer is None: + try: + importer = ImpImporter(path_item) + except ImportError: + importer = None + return importer + + +def iter_importers(fullname=""): + """Yield PEP 302 importers for the given module name + + If fullname contains a '.', the importers will be for the package + containing fullname, otherwise they will be importers for sys.meta_path, + sys.path, and Python's "classic" import machinery, in that order. If + the named module is in a package, that package is imported as a side + effect of invoking this function. + + Non PEP 302 mechanisms (e.g. the Windows registry) used by the + standard import machinery to find files in alternative locations + are partially supported, but are searched AFTER sys.path. Normally, + these locations are searched BEFORE sys.path, preventing sys.path + entries from shadowing them. + + For this to cause a visible difference in behaviour, there must + be a module or package name that is accessible via both sys.path + and one of the non PEP 302 file system mechanisms. In this case, + the emulation will find the former version, while the builtin + import mechanism will find the latter. + + Items of the following types can be affected by this discrepancy: + imp.C_EXTENSION, imp.PY_SOURCE, imp.PY_COMPILED, imp.PKG_DIRECTORY + """ + if fullname.startswith('.'): + raise ImportError("Relative module names not supported") + if '.' in fullname: + # Get the containing package's __path__ + pkg = '.'.join(fullname.split('.')[:-1]) + if pkg not in sys.modules: + __import__(pkg) + path = getattr(sys.modules[pkg], '__path__', None) or [] + else: + for importer in sys.meta_path: + yield importer + path = sys.path + for item in path: + yield get_importer(item) + if '.' not in fullname: + yield ImpImporter() + +def get_loader(module_or_name): + """Get a PEP 302 "loader" object for module_or_name + + If the module or package is accessible via the normal import + mechanism, a wrapper around the relevant part of that machinery + is returned. Returns None if the module cannot be found or imported. + If the named module is not already imported, its containing package + (if any) is imported, in order to establish the package __path__. + + This function uses iter_importers(), and is thus subject to the same + limitations regarding platform-specific special import locations such + as the Windows registry. + """ + if module_or_name in sys.modules: + module_or_name = sys.modules[module_or_name] + if isinstance(module_or_name, ModuleType): + module = module_or_name + loader = getattr(module, '__loader__', None) + if loader is not None: + return loader + fullname = module.__name__ + else: + fullname = module_or_name + return find_loader(fullname) + +def find_loader(fullname): + """Find a PEP 302 "loader" object for fullname + + If fullname contains dots, path must be the containing package's __path__. + Returns None if the module cannot be found or imported. This function uses + iter_importers(), and is thus subject to the same limitations regarding + platform-specific special import locations such as the Windows registry. + """ + for importer in iter_importers(fullname): + loader = importer.find_module(fullname) + if loader is not None: + return loader + + return None + + +def extend_path(path, name): + """Extend a package's path. + + Intended use is to place the following code in a package's __init__.py: + + from pkgutil import extend_path + __path__ = extend_path(__path__, __name__) + + This will add to the package's __path__ all subdirectories of + directories on sys.path named after the package. This is useful + if one wants to distribute different parts of a single logical + package as multiple directories. + + It also looks for *.pkg files beginning where * matches the name + argument. This feature is similar to *.pth files (see site.py), + except that it doesn't special-case lines starting with 'import'. + A *.pkg file is trusted at face value: apart from checking for + duplicates, all entries found in a *.pkg file are added to the + path, regardless of whether they are exist the filesystem. (This + is a feature.) + + If the input path is not a list (as is the case for frozen + packages) it is returned unchanged. The input path is not + modified; an extended copy is returned. Items are only appended + to the copy at the end. + + It is assumed that sys.path is a sequence. Items of sys.path that + are not (unicode or 8-bit) strings referring to existing + directories are ignored. Unicode items of sys.path that cause + errors when used as filenames may cause this function to raise an + exception (in line with os.path.isdir() behavior). + """ + + if not isinstance(path, list): + # This could happen e.g. when this is called from inside a + # frozen package. Return the path unchanged in that case. + return path + + pname = os.path.join(*name.split('.')) # Reconstitute as relative path + # Just in case os.extsep != '.' + sname = os.extsep.join(name.split('.')) + sname_pkg = sname + os.extsep + "pkg" + init_py = "__init__" + os.extsep + "py" + + path = path[:] # Start with a copy of the existing path + + for dir in sys.path: + if not isinstance(dir, basestring) or not os.path.isdir(dir): + continue + subdir = os.path.join(dir, pname) + # XXX This may still add duplicate entries to path on + # case-insensitive filesystems + initfile = os.path.join(subdir, init_py) + if subdir not in path and os.path.isfile(initfile): + path.append(subdir) + # XXX Is this the right thing for subpackages like zope.app? + # It looks for a file named "zope.app.pkg" + pkgfile = os.path.join(dir, sname_pkg) + if os.path.isfile(pkgfile): + try: + f = open(pkgfile) + except IOError, msg: + sys.stderr.write("Can't open %s: %s\n" % + (pkgfile, msg)) + else: + for line in f: + line = line.rstrip('\n') + if not line or line.startswith('#'): + continue + path.append(line) # Don't check for existence! + f.close() + + return path + +def get_data(package, resource): + """Get a resource from a package. + + This is a wrapper round the PEP 302 loader get_data API. The package + argument should be the name of a package, in standard module format + (foo.bar). The resource argument should be in the form of a relative + filename, using '/' as the path separator. The parent directory name '..' + is not allowed, and nor is a rooted name (starting with a '/'). + + The function returns a binary string, which is the contents of the + specified resource. + + For packages located in the filesystem, which have already been imported, + this is the rough equivalent of + + d = os.path.dirname(sys.modules[package].__file__) + data = open(os.path.join(d, resource), 'rb').read() + + If the package cannot be located or loaded, or it uses a PEP 302 loader + which does not support get_data(), then None is returned. + """ + + loader = get_loader(package) + if loader is None or not hasattr(loader, 'get_data'): + return None + mod = sys.modules.get(package) or loader.load_module(package) + if mod is None or not hasattr(mod, '__file__'): + return None + + # Modify the resource name to be compatible with the loader.get_data + # signature - an os.path format "filename" starting with the dirname of + # the package's __file__ + parts = resource.split('/') + parts.insert(0, os.path.dirname(mod.__file__)) + resource_name = os.path.join(*parts) + return loader.get_data(resource_name) diff --git a/python/helpers/pydev/third_party/pluginbase.py b/python/helpers/pydev/third_party/pluginbase.py new file mode 100644 index 000000000000..0ad6404eee00 --- /dev/null +++ b/python/helpers/pydev/third_party/pluginbase.py @@ -0,0 +1,454 @@ +# -*- coding: utf-8 -*- +""" + pluginbase + ~~~~~~~~~~ + + Pluginbase is a module for Python that provides a system for building + plugin based applications. + + :copyright: (c) Copyright 2014 by Armin Ronacher. + :license: BSD, see LICENSE for more details. +""" +import os +import sys + +from pydevd_constants import IS_PY24, IS_PY3K + + +if IS_PY24: + from third_party.uuid_old import uuid4 +else: + from uuid import uuid4 + +if IS_PY3K: + import pkgutil +else: + import pkgutil_old as pkgutil + +import errno +try: + from hashlib import md5 +except ImportError: + from md5 import md5 +import threading + +from types import ModuleType +from weakref import ref as weakref + + +PY2 = sys.version_info[0] == 2 +if PY2: + text_type = unicode + string_types = (unicode, str) + from cStringIO import StringIO as NativeBytesIO +else: + text_type = str + string_types = (str,) + from io import BytesIO as NativeBytesIO + + +_local = threading.local() + +_internalspace = ModuleType(__name__ + '._internalspace') +_internalspace.__path__ = [] +sys.modules[_internalspace.__name__] = _internalspace + + +def get_plugin_source(module=None, stacklevel=None): + """Returns the :class:`PluginSource` for the current module or the given + module. The module can be provided by name (in which case an import + will be attempted) or as a module object. + + If no plugin source can be discovered, the return value from this method + is `None`. + + This function can be very useful if additional data has been attached + to the plugin source. For instance this could allow plugins to get + access to a back reference to the application that created them. + + :param module: optionally the module to locate the plugin source of. + :param stacklevel: defines how many levels up the module should search + for before it discovers the plugin frame. The + default is 0. This can be useful for writing wrappers + around this function. + """ + if module is None: + frm = sys._getframe((stacklevel or 0) + 1) + name = frm.f_globals['__name__'] + glob = frm.f_globals + elif isinstance(module, string_types): + frm = sys._getframe(1) + name = module + glob = __import__(module, frm.f_globals, + frm.f_locals, ['__dict__']).__dict__ + else: + name = module.__name__ + glob = module.__dict__ + return _discover_space(name, glob) + + +def _discover_space(name, globals): + try: + return _local.space_stack[-1] + except (AttributeError, IndexError): + pass + + if '__pluginbase_state__' in globals: + return globals['__pluginbase_state__'].source + + mod_name = globals.get('__name__') + if mod_name is not None and \ + mod_name.startswith(_internalspace.__name__ + '.'): + end = mod_name.find('.', len(_internalspace.__name__) + 1) + space = sys.modules.get(mod_name[:end]) + if space is not None: + return space.__pluginbase_state__.source + + +def _shutdown_module(mod): + members = list(mod.__dict__.items()) + for key, value in members: + if key[:1] != '_': + setattr(mod, key, None) + for key, value in members: + setattr(mod, key, None) + + +def _to_bytes(s): + if isinstance(s, text_type): + return s.encode('utf-8') + return s + + +class _IntentionallyEmptyModule(ModuleType): + + def __getattr__(self, name): + try: + return ModuleType.__getattr__(self, name) + except AttributeError: + if name[:2] == '__': + raise + raise RuntimeError( + 'Attempted to import from a plugin base module (%s) without ' + 'having a plugin source activated. To solve this error ' + 'you have to move the import into a "with" block of the ' + 'associated plugin source.' % self.__name__) + + +class _PluginSourceModule(ModuleType): + + def __init__(self, source): + modname = '%s.%s' % (_internalspace.__name__, source.spaceid) + ModuleType.__init__(self, modname) + self.__pluginbase_state__ = PluginBaseState(source) + + @property + def __path__(self): + try: + ps = self.__pluginbase_state__.source + except AttributeError: + return [] + return ps.searchpath + ps.base.searchpath + + +def _setup_base_package(module_name): + try: + mod = __import__(module_name, None, None, ['__name__']) + except ImportError: + mod = None + if '.' in module_name: + parent_mod = __import__(module_name.rsplit('.', 1)[0], + None, None, ['__name__']) + else: + parent_mod = None + + if mod is None: + mod = _IntentionallyEmptyModule(module_name) + if parent_mod is not None: + setattr(parent_mod, module_name.rsplit('.', 1)[-1], mod) + sys.modules[module_name] = mod + + +class PluginBase(object): + """The plugin base acts as a control object around a dummy Python + package that acts as a container for plugins. Usually each + application creates exactly one base object for all plugins. + + :param package: the name of the package that acts as the plugin base. + Usually this module does not exist. Unless you know + what you are doing you should not create this module + on the file system. + :param searchpath: optionally a shared search path for modules that + will be used by all plugin sources registered. + """ + + def __init__(self, package, searchpath=None): + #: the name of the dummy package. + self.package = package + if searchpath is None: + searchpath = [] + #: the default search path shared by all plugins as list. + self.searchpath = searchpath + _setup_base_package(package) + + def make_plugin_source(self, *args, **kwargs): + """Creats a plugin source for this plugin base and returns it. + All parameters are forwarded to :class:`PluginSource`. + """ + return PluginSource(self, *args, **kwargs) + + +class PluginSource(object): + """The plugin source is what ultimately decides where plugins are + loaded from. Plugin bases can have multiple plugin sources which act + as isolation layer. While this is not a security system it generally + is not possible for plugins from different sources to accidentally + cross talk. + + Once a plugin source has been created it can be used in a ``with`` + statement to change the behavior of the ``import`` statement in the + block to define which source to load the plugins from:: + + plugin_source = plugin_base.make_plugin_source( + searchpath=['./path/to/plugins', './path/to/more/plugins']) + + with plugin_source: + from myapplication.plugins import my_plugin + + :param base: the base this plugin source belongs to. + :param identifier: optionally a stable identifier. If it's not defined + a random identifier is picked. It's useful to set this + to a stable value to have consistent tracebacks + between restarts and to support pickle. + :param searchpath: a list of paths where plugins are looked for. + :param persist: optionally this can be set to `True` and the plugins + will not be cleaned up when the plugin source gets + garbage collected. + """ + # Set these here to false by default so that a completely failing + # constructor does not fuck up the destructor. + persist = False + mod = None + + def __init__(self, base, identifier=None, searchpath=None, + persist=False): + #: indicates if this plugin source persists or not. + self.persist = persist + if identifier is None: + identifier = str(uuid4()) + #: the identifier for this source. + self.identifier = identifier + #: A reference to the plugin base that created this source. + self.base = base + #: a list of paths where plugins are searched in. + self.searchpath = searchpath + #: The internal module name of the plugin source as it appears + #: in the :mod:`pluginsource._internalspace`. + div = None + self.spaceid = '_sp' + md5( + _to_bytes(self.base.package) + _to_bytes('|') + + _to_bytes(self.identifier) + ).hexdigest() + #: a reference to the module on the internal + #: :mod:`pluginsource._internalspace`. + self.mod = _PluginSourceModule(self) + + if hasattr(_internalspace, self.spaceid): + raise RuntimeError('This plugin source already exists.') + sys.modules[self.mod.__name__] = self.mod + setattr(_internalspace, self.spaceid, self.mod) + + def __del__(self): + if not self.persist: + self.cleanup() + + def list_plugins(self): + """Returns a sorted list of all plugins that are available in this + plugin source. This can be useful to automatically discover plugins + that are available and is usually used together with + :meth:`load_plugin`. + """ + rv = [] + for _, modname, ispkg in pkgutil.iter_modules(self.mod.__path__): + rv.append(modname) + return sorted(rv) + + def load_plugin(self, name): + """This automatically loads a plugin by the given name from the + current source and returns the module. This is a convenient + alternative to the import statement and saves you from invoking + ``__import__`` or a similar function yourself. + + :param name: the name of the plugin to load. + """ + if '.' in name: + raise ImportError('Plugin names cannot contain dots.') + + #with self: + # return __import__(self.base.package + '.' + name, + # globals(), {}, ['__name__']) + + self.__assert_not_cleaned_up() + _local.__dict__.setdefault('space_stack', []).append(self) + try: + res = __import__(self.base.package + '.' + name, + globals(), {}, ['__name__']) + return res + finally: + try: + _local.space_stack.pop() + except (AttributeError, IndexError): + pass + + def open_resource(self, plugin, filename): + """This function locates a resource inside the plugin and returns + a byte stream to the contents of it. If the resource cannot be + loaded an :exc:`IOError` will be raised. Only plugins that are + real Python packages can contain resources. Plain old Python + modules do not allow this for obvious reasons. + + .. versionadded:: 0.3 + + :param plugin: the name of the plugin to open the resource of. + :param filename: the name of the file within the plugin to open. + """ + mod = self.load_plugin(plugin) + fn = getattr(mod, '__file__', None) + if fn is not None: + if fn.endswith(('.pyc', '.pyo')): + fn = fn[:-1] + if os.path.isfile(fn): + return open(os.path.join(os.path.dirname(fn), filename), 'rb') + buf = pkgutil.get_data(self.mod.__name__ + '.' + plugin, filename) + if buf is None: + raise IOError(errno.ENOEXITS, 'Could not find resource') + return NativeBytesIO(buf) + + def cleanup(self): + """Cleans up all loaded plugins manually. This is necessary to + call only if :attr:`persist` is enabled. Otherwise this happens + automatically when the source gets garbage collected. + """ + self.__cleanup() + + def __cleanup(self, _sys=sys, _shutdown_module=_shutdown_module): + # The default parameters are necessary because this can be fired + # from the destructor and so late when the interpreter shuts down + # that these functions and modules might be gone. + if self.mod is None: + return + modname = self.mod.__name__ + self.mod.__pluginbase_state__ = None + self.mod = None + try: + delattr(_internalspace, self.spaceid) + except AttributeError: + pass + prefix = modname + '.' + _sys.modules.pop(modname) + for key, value in list(_sys.modules.items()): + if not key.startswith(prefix): + continue + mod = _sys.modules.pop(key, None) + if mod is None: + continue + _shutdown_module(mod) + + def __assert_not_cleaned_up(self): + if self.mod is None: + raise RuntimeError('The plugin source was already cleaned up.') + + def __enter__(self): + self.__assert_not_cleaned_up() + _local.__dict__.setdefault('space_stack', []).append(self) + return self + + def __exit__(self, exc_type, exc_value, tb): + try: + _local.space_stack.pop() + except (AttributeError, IndexError): + pass + + def _rewrite_module_path(self, modname): + self.__assert_not_cleaned_up() + if modname == self.base.package: + return self.mod.__name__ + elif modname.startswith(self.base.package + '.'): + pieces = modname.split('.') + return self.mod.__name__ + '.' + '.'.join( + pieces[self.base.package.count('.') + 1:]) + + +class PluginBaseState(object): + __slots__ = ('_source',) + + def __init__(self, source): + if source.persist: + self._source = lambda: source + else: + self._source = weakref(source) + + @property + def source(self): + rv = self._source() + if rv is None: + raise AttributeError('Plugin source went away') + return rv + + +class _ImportHook(ModuleType): + + def __init__(self, name, system_import): + ModuleType.__init__(self, name) + self._system_import = system_import + self.enabled = True + + def enable(self): + """Enables the import hook which drives the plugin base system. + This is the default. + """ + self.enabled = True + + def disable(self): + """Disables the import hook and restores the default import system + behavior. This effectively breaks pluginbase but can be useful + for testing purposes. + """ + self.enabled = False + + def plugin_import(self, name, globals=None, locals=None, + fromlist=None, level=-2): + import_name = name + if self.enabled: + ref_globals = globals + if ref_globals is None: + ref_globals = sys._getframe(1).f_globals + space = _discover_space(name, ref_globals) + if space is not None: + actual_name = space._rewrite_module_path(name) + if actual_name is not None: + import_name = actual_name + if level == -2: + # fake impossible value; default value depends on version + if IS_PY24: + # the level parameter was added in version 2.5 + return self._system_import(import_name, globals, locals, fromlist) + elif IS_PY3K: + # default value for level parameter in python 3 + level = 0 + else: + # default value for level parameter in other versions + level = -1 + return self._system_import(import_name, globals, locals, + fromlist, level) + + +try: + import __builtin__ as builtins +except ImportError: + import builtins + +import_hook = _ImportHook(__name__ + '.import_hook', builtins.__import__) +builtins.__import__ = import_hook.plugin_import +sys.modules[import_hook.__name__] = import_hook +del builtins diff --git a/python/helpers/pydev/third_party/uuid_old.py b/python/helpers/pydev/third_party/uuid_old.py new file mode 100644 index 000000000000..ae3da25ca557 --- /dev/null +++ b/python/helpers/pydev/third_party/uuid_old.py @@ -0,0 +1,541 @@ +r"""UUID objects (universally unique identifiers) according to RFC 4122. + +This module provides immutable UUID objects (class UUID) and the functions +uuid1(), uuid3(), uuid4(), uuid5() for generating version 1, 3, 4, and 5 +UUIDs as specified in RFC 4122. + +If all you want is a unique ID, you should probably call uuid1() or uuid4(). +Note that uuid1() may compromise privacy since it creates a UUID containing +the computer's network address. uuid4() creates a random UUID. + +Typical usage: + + >>> import uuid + + # make a UUID based on the host ID and current time + >>> uuid.uuid1() + UUID('a8098c1a-f86e-11da-bd1a-00112444be1e') + + # make a UUID using an MD5 hash of a namespace UUID and a name + >>> uuid.uuid3(uuid.NAMESPACE_DNS, 'python.org') + UUID('6fa459ea-ee8a-3ca4-894e-db77e160355e') + + # make a random UUID + >>> uuid.uuid4() + UUID('16fd2706-8baf-433b-82eb-8c7fada847da') + + # make a UUID using a SHA-1 hash of a namespace UUID and a name + >>> uuid.uuid5(uuid.NAMESPACE_DNS, 'python.org') + UUID('886313e1-3b8a-5372-9b90-0c9aee199e5d') + + # make a UUID from a string of hex digits (braces and hyphens ignored) + >>> x = uuid.UUID('{00010203-0405-0607-0809-0a0b0c0d0e0f}') + + # convert a UUID to a string of hex digits in standard form + >>> str(x) + '00010203-0405-0607-0809-0a0b0c0d0e0f' + + # get the raw 16 bytes of the UUID + >>> x.bytes + '\x00\x01\x02\x03\x04\x05\x06\x07\x08\t\n\x0b\x0c\r\x0e\x0f' + + # make a UUID from a 16-byte string + >>> uuid.UUID(bytes=x.bytes) + UUID('00010203-0405-0607-0809-0a0b0c0d0e0f') +""" + +__author__ = 'Ka-Ping Yee <ping@zesty.ca>' + +RESERVED_NCS, RFC_4122, RESERVED_MICROSOFT, RESERVED_FUTURE = [ + 'reserved for NCS compatibility', 'specified in RFC 4122', + 'reserved for Microsoft compatibility', 'reserved for future definition'] + +class UUID(object): + """Instances of the UUID class represent UUIDs as specified in RFC 4122. + UUID objects are immutable, hashable, and usable as dictionary keys. + Converting a UUID to a string with str() yields something in the form + '12345678-1234-1234-1234-123456789abc'. The UUID constructor accepts + five possible forms: a similar string of hexadecimal digits, or a tuple + of six integer fields (with 32-bit, 16-bit, 16-bit, 8-bit, 8-bit, and + 48-bit values respectively) as an argument named 'fields', or a string + of 16 bytes (with all the integer fields in big-endian order) as an + argument named 'bytes', or a string of 16 bytes (with the first three + fields in little-endian order) as an argument named 'bytes_le', or a + single 128-bit integer as an argument named 'int'. + + UUIDs have these read-only attributes: + + bytes the UUID as a 16-byte string (containing the six + integer fields in big-endian byte order) + + bytes_le the UUID as a 16-byte string (with time_low, time_mid, + and time_hi_version in little-endian byte order) + + fields a tuple of the six integer fields of the UUID, + which are also available as six individual attributes + and two derived attributes: + + time_low the first 32 bits of the UUID + time_mid the next 16 bits of the UUID + time_hi_version the next 16 bits of the UUID + clock_seq_hi_variant the next 8 bits of the UUID + clock_seq_low the next 8 bits of the UUID + node the last 48 bits of the UUID + + time the 60-bit timestamp + clock_seq the 14-bit sequence number + + hex the UUID as a 32-character hexadecimal string + + int the UUID as a 128-bit integer + + urn the UUID as a URN as specified in RFC 4122 + + variant the UUID variant (one of the constants RESERVED_NCS, + RFC_4122, RESERVED_MICROSOFT, or RESERVED_FUTURE) + + version the UUID version number (1 through 5, meaningful only + when the variant is RFC_4122) + """ + + def __init__(self, hex=None, bytes=None, bytes_le=None, fields=None, + int=None, version=None): + r"""Create a UUID from either a string of 32 hexadecimal digits, + a string of 16 bytes as the 'bytes' argument, a string of 16 bytes + in little-endian order as the 'bytes_le' argument, a tuple of six + integers (32-bit time_low, 16-bit time_mid, 16-bit time_hi_version, + 8-bit clock_seq_hi_variant, 8-bit clock_seq_low, 48-bit node) as + the 'fields' argument, or a single 128-bit integer as the 'int' + argument. When a string of hex digits is given, curly braces, + hyphens, and a URN prefix are all optional. For example, these + expressions all yield the same UUID: + + UUID('{12345678-1234-5678-1234-567812345678}') + UUID('12345678123456781234567812345678') + UUID('urn:uuid:12345678-1234-5678-1234-567812345678') + UUID(bytes='\x12\x34\x56\x78'*4) + UUID(bytes_le='\x78\x56\x34\x12\x34\x12\x78\x56' + + '\x12\x34\x56\x78\x12\x34\x56\x78') + UUID(fields=(0x12345678, 0x1234, 0x5678, 0x12, 0x34, 0x567812345678)) + UUID(int=0x12345678123456781234567812345678) + + Exactly one of 'hex', 'bytes', 'bytes_le', 'fields', or 'int' must + be given. The 'version' argument is optional; if given, the resulting + UUID will have its variant and version set according to RFC 4122, + overriding the given 'hex', 'bytes', 'bytes_le', 'fields', or 'int'. + """ + + if [hex, bytes, bytes_le, fields, int].count(None) != 4: + raise TypeError('need one of hex, bytes, bytes_le, fields, or int') + if hex is not None: + hex = hex.replace('urn:', '').replace('uuid:', '') + hex = hex.strip('{}').replace('-', '') + if len(hex) != 32: + raise ValueError('badly formed hexadecimal UUID string') + int = long(hex, 16) + if bytes_le is not None: + if len(bytes_le) != 16: + raise ValueError('bytes_le is not a 16-char string') + bytes = (bytes_le[3] + bytes_le[2] + bytes_le[1] + bytes_le[0] + + bytes_le[5] + bytes_le[4] + bytes_le[7] + bytes_le[6] + + bytes_le[8:]) + if bytes is not None: + if len(bytes) != 16: + raise ValueError('bytes is not a 16-char string') + int = long(('%02x'*16) % tuple(map(ord, bytes)), 16) + if fields is not None: + if len(fields) != 6: + raise ValueError('fields is not a 6-tuple') + (time_low, time_mid, time_hi_version, + clock_seq_hi_variant, clock_seq_low, node) = fields + if not 0 <= time_low < 1<<32L: + raise ValueError('field 1 out of range (need a 32-bit value)') + if not 0 <= time_mid < 1<<16L: + raise ValueError('field 2 out of range (need a 16-bit value)') + if not 0 <= time_hi_version < 1<<16L: + raise ValueError('field 3 out of range (need a 16-bit value)') + if not 0 <= clock_seq_hi_variant < 1<<8L: + raise ValueError('field 4 out of range (need an 8-bit value)') + if not 0 <= clock_seq_low < 1<<8L: + raise ValueError('field 5 out of range (need an 8-bit value)') + if not 0 <= node < 1<<48L: + raise ValueError('field 6 out of range (need a 48-bit value)') + clock_seq = (clock_seq_hi_variant << 8L) | clock_seq_low + int = ((time_low << 96L) | (time_mid << 80L) | + (time_hi_version << 64L) | (clock_seq << 48L) | node) + if int is not None: + if not 0 <= int < 1<<128L: + raise ValueError('int is out of range (need a 128-bit value)') + if version is not None: + if not 1 <= version <= 5: + raise ValueError('illegal version number') + # Set the variant to RFC 4122. + int &= ~(0xc000 << 48L) + int |= 0x8000 << 48L + # Set the version number. + int &= ~(0xf000 << 64L) + int |= version << 76L + self.__dict__['int'] = int + + def __cmp__(self, other): + if isinstance(other, UUID): + return cmp(self.int, other.int) + return NotImplemented + + def __hash__(self): + return hash(self.int) + + def __int__(self): + return self.int + + def __repr__(self): + return 'UUID(%r)' % str(self) + + def __setattr__(self, name, value): + raise TypeError('UUID objects are immutable') + + def __str__(self): + hex = '%032x' % self.int + return '%s-%s-%s-%s-%s' % ( + hex[:8], hex[8:12], hex[12:16], hex[16:20], hex[20:]) + + def get_bytes(self): + bytes = '' + for shift in range(0, 128, 8): + bytes = chr((self.int >> shift) & 0xff) + bytes + return bytes + + bytes = property(get_bytes) + + def get_bytes_le(self): + bytes = self.bytes + return (bytes[3] + bytes[2] + bytes[1] + bytes[0] + + bytes[5] + bytes[4] + bytes[7] + bytes[6] + bytes[8:]) + + bytes_le = property(get_bytes_le) + + def get_fields(self): + return (self.time_low, self.time_mid, self.time_hi_version, + self.clock_seq_hi_variant, self.clock_seq_low, self.node) + + fields = property(get_fields) + + def get_time_low(self): + return self.int >> 96L + + time_low = property(get_time_low) + + def get_time_mid(self): + return (self.int >> 80L) & 0xffff + + time_mid = property(get_time_mid) + + def get_time_hi_version(self): + return (self.int >> 64L) & 0xffff + + time_hi_version = property(get_time_hi_version) + + def get_clock_seq_hi_variant(self): + return (self.int >> 56L) & 0xff + + clock_seq_hi_variant = property(get_clock_seq_hi_variant) + + def get_clock_seq_low(self): + return (self.int >> 48L) & 0xff + + clock_seq_low = property(get_clock_seq_low) + + def get_time(self): + return (((self.time_hi_version & 0x0fffL) << 48L) | + (self.time_mid << 32L) | self.time_low) + + time = property(get_time) + + def get_clock_seq(self): + return (((self.clock_seq_hi_variant & 0x3fL) << 8L) | + self.clock_seq_low) + + clock_seq = property(get_clock_seq) + + def get_node(self): + return self.int & 0xffffffffffff + + node = property(get_node) + + def get_hex(self): + return '%032x' % self.int + + hex = property(get_hex) + + def get_urn(self): + return 'urn:uuid:' + str(self) + + urn = property(get_urn) + + def get_variant(self): + if not self.int & (0x8000 << 48L): + return RESERVED_NCS + elif not self.int & (0x4000 << 48L): + return RFC_4122 + elif not self.int & (0x2000 << 48L): + return RESERVED_MICROSOFT + else: + return RESERVED_FUTURE + + variant = property(get_variant) + + def get_version(self): + # The version bits are only meaningful for RFC 4122 UUIDs. + if self.variant == RFC_4122: + return int((self.int >> 76L) & 0xf) + + version = property(get_version) + +def _find_mac(command, args, hw_identifiers, get_index): + import os + for dir in ['', '/sbin/', '/usr/sbin']: + executable = os.path.join(dir, command) + if not os.path.exists(executable): + continue + + try: + # LC_ALL to get English output, 2>/dev/null to + # prevent output on stderr + cmd = 'LC_ALL=C %s %s 2>/dev/null' % (executable, args) + pipe = os.popen(cmd) + except IOError: + continue + + for line in pipe: + words = line.lower().split() + for i in range(len(words)): + if words[i] in hw_identifiers: + return int(words[get_index(i)].replace(':', ''), 16) + return None + +def _ifconfig_getnode(): + """Get the hardware address on Unix by running ifconfig.""" + + # This works on Linux ('' or '-a'), Tru64 ('-av'), but not all Unixes. + for args in ('', '-a', '-av'): + mac = _find_mac('ifconfig', args, ['hwaddr', 'ether'], lambda i: i+1) + if mac: + return mac + + import socket + ip_addr = socket.gethostbyname(socket.gethostname()) + + # Try getting the MAC addr from arp based on our IP address (Solaris). + mac = _find_mac('arp', '-an', [ip_addr], lambda i: -1) + if mac: + return mac + + # This might work on HP-UX. + mac = _find_mac('lanscan', '-ai', ['lan0'], lambda i: 0) + if mac: + return mac + + return None + +def _ipconfig_getnode(): + """Get the hardware address on Windows by running ipconfig.exe.""" + import os, re + dirs = ['', r'c:\windows\system32', r'c:\winnt\system32'] + try: + import ctypes + buffer = ctypes.create_string_buffer(300) + ctypes.windll.kernel32.GetSystemDirectoryA(buffer, 300) + dirs.insert(0, buffer.value.decode('mbcs')) + except: + pass + for dir in dirs: + try: + pipe = os.popen(os.path.join(dir, 'ipconfig') + ' /all') + except IOError: + continue + for line in pipe: + value = line.split(':')[-1].strip().lower() + if re.match('([0-9a-f][0-9a-f]-){5}[0-9a-f][0-9a-f]', value): + return int(value.replace('-', ''), 16) + +def _netbios_getnode(): + """Get the hardware address on Windows using NetBIOS calls. + See http://support.microsoft.com/kb/118623 for details.""" + import win32wnet, netbios + ncb = netbios.NCB() + ncb.Command = netbios.NCBENUM + ncb.Buffer = adapters = netbios.LANA_ENUM() + adapters._pack() + if win32wnet.Netbios(ncb) != 0: + return + adapters._unpack() + for i in range(adapters.length): + ncb.Reset() + ncb.Command = netbios.NCBRESET + ncb.Lana_num = ord(adapters.lana[i]) + if win32wnet.Netbios(ncb) != 0: + continue + ncb.Reset() + ncb.Command = netbios.NCBASTAT + ncb.Lana_num = ord(adapters.lana[i]) + ncb.Callname = '*'.ljust(16) + ncb.Buffer = status = netbios.ADAPTER_STATUS() + if win32wnet.Netbios(ncb) != 0: + continue + status._unpack() + bytes = map(ord, status.adapter_address) + return ((bytes[0]<<40L) + (bytes[1]<<32L) + (bytes[2]<<24L) + + (bytes[3]<<16L) + (bytes[4]<<8L) + bytes[5]) + +# Thanks to Thomas Heller for ctypes and for his help with its use here. + +# If ctypes is available, use it to find system routines for UUID generation. +_uuid_generate_random = _uuid_generate_time = _UuidCreate = None +try: + import ctypes, ctypes.util + _buffer = ctypes.create_string_buffer(16) + + # The uuid_generate_* routines are provided by libuuid on at least + # Linux and FreeBSD, and provided by libc on Mac OS X. + for libname in ['uuid', 'c']: + try: + lib = ctypes.CDLL(ctypes.util.find_library(libname)) + except: + continue + if hasattr(lib, 'uuid_generate_random'): + _uuid_generate_random = lib.uuid_generate_random + if hasattr(lib, 'uuid_generate_time'): + _uuid_generate_time = lib.uuid_generate_time + + # On Windows prior to 2000, UuidCreate gives a UUID containing the + # hardware address. On Windows 2000 and later, UuidCreate makes a + # random UUID and UuidCreateSequential gives a UUID containing the + # hardware address. These routines are provided by the RPC runtime. + # NOTE: at least on Tim's WinXP Pro SP2 desktop box, while the last + # 6 bytes returned by UuidCreateSequential are fixed, they don't appear + # to bear any relationship to the MAC address of any network device + # on the box. + try: + lib = ctypes.windll.rpcrt4 + except: + lib = None + _UuidCreate = getattr(lib, 'UuidCreateSequential', + getattr(lib, 'UuidCreate', None)) +except: + pass + +def _unixdll_getnode(): + """Get the hardware address on Unix using ctypes.""" + _uuid_generate_time(_buffer) + return UUID(bytes=_buffer.raw).node + +def _windll_getnode(): + """Get the hardware address on Windows using ctypes.""" + if _UuidCreate(_buffer) == 0: + return UUID(bytes=_buffer.raw).node + +def _random_getnode(): + """Get a random node ID, with eighth bit set as suggested by RFC 4122.""" + import random + return random.randrange(0, 1<<48L) | 0x010000000000L + +_node = None + +def getnode(): + """Get the hardware address as a 48-bit positive integer. + + The first time this runs, it may launch a separate program, which could + be quite slow. If all attempts to obtain the hardware address fail, we + choose a random 48-bit number with its eighth bit set to 1 as recommended + in RFC 4122. + """ + + global _node + if _node is not None: + return _node + + import sys + if sys.platform == 'win32': + getters = [_windll_getnode, _netbios_getnode, _ipconfig_getnode] + else: + getters = [_unixdll_getnode, _ifconfig_getnode] + + for getter in getters + [_random_getnode]: + try: + _node = getter() + except: + continue + if _node is not None: + return _node + +_last_timestamp = None + +def uuid1(node=None, clock_seq=None): + """Generate a UUID from a host ID, sequence number, and the current time. + If 'node' is not given, getnode() is used to obtain the hardware + address. If 'clock_seq' is given, it is used as the sequence number; + otherwise a random 14-bit sequence number is chosen.""" + + # When the system provides a version-1 UUID generator, use it (but don't + # use UuidCreate here because its UUIDs don't conform to RFC 4122). + if _uuid_generate_time and node is clock_seq is None: + _uuid_generate_time(_buffer) + return UUID(bytes=_buffer.raw) + + global _last_timestamp + import time + nanoseconds = int(time.time() * 1e9) + # 0x01b21dd213814000 is the number of 100-ns intervals between the + # UUID epoch 1582-10-15 00:00:00 and the Unix epoch 1970-01-01 00:00:00. + timestamp = int(nanoseconds/100) + 0x01b21dd213814000L + if timestamp <= _last_timestamp: + timestamp = _last_timestamp + 1 + _last_timestamp = timestamp + if clock_seq is None: + import random + clock_seq = random.randrange(1<<14L) # instead of stable storage + time_low = timestamp & 0xffffffffL + time_mid = (timestamp >> 32L) & 0xffffL + time_hi_version = (timestamp >> 48L) & 0x0fffL + clock_seq_low = clock_seq & 0xffL + clock_seq_hi_variant = (clock_seq >> 8L) & 0x3fL + if node is None: + node = getnode() + return UUID(fields=(time_low, time_mid, time_hi_version, + clock_seq_hi_variant, clock_seq_low, node), version=1) + +def uuid3(namespace, name): + """Generate a UUID from the MD5 hash of a namespace UUID and a name.""" + import md5 + hash = md5.md5(namespace.bytes + name).digest() + return UUID(bytes=hash[:16], version=3) + +def uuid4(): + """Generate a random UUID.""" + + # When the system provides a version-4 UUID generator, use it. + if _uuid_generate_random: + _uuid_generate_random(_buffer) + return UUID(bytes=_buffer.raw) + + # Otherwise, get randomness from urandom or the 'random' module. + try: + import os + return UUID(bytes=os.urandom(16), version=4) + except: + import random + bytes = [chr(random.randrange(256)) for i in range(16)] + return UUID(bytes=bytes, version=4) + +def uuid5(namespace, name): + """Generate a UUID from the SHA-1 hash of a namespace UUID and a name.""" + import sha + hash = sha.sha(namespace.bytes + name).digest() + return UUID(bytes=hash[:16], version=5) + +# The following standard UUIDs are for use with uuid3() or uuid5(). + +NAMESPACE_DNS = UUID('6ba7b810-9dad-11d1-80b4-00c04fd430c8') +NAMESPACE_URL = UUID('6ba7b811-9dad-11d1-80b4-00c04fd430c8') +NAMESPACE_OID = UUID('6ba7b812-9dad-11d1-80b4-00c04fd430c8') +NAMESPACE_X500 = UUID('6ba7b814-9dad-11d1-80b4-00c04fd430c8') |