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Diffstat (limited to 'scripts/lib/wic/plugin.py')
| -rw-r--r-- | scripts/lib/wic/plugin.py | 150 |
1 files changed, 0 insertions, 150 deletions
diff --git a/scripts/lib/wic/plugin.py b/scripts/lib/wic/plugin.py deleted file mode 100644 index 306b32437e..0000000000 --- a/scripts/lib/wic/plugin.py +++ /dev/null @@ -1,150 +0,0 @@ -#!/usr/bin/env python -tt -# -# Copyright (c) 2011 Intel, Inc. -# -# This program is free software; you can redistribute it and/or modify it -# under the terms of the GNU General Public License as published by the Free -# Software Foundation; version 2 of the License -# -# This program is distributed in the hope that it will be useful, but -# WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY -# or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License -# for more details. -# -# You should have received a copy of the GNU General Public License along -# with this program; if not, write to the Free Software Foundation, Inc., 59 -# Temple Place - Suite 330, Boston, MA 02111-1307, USA. - -import os, sys - -from wic import msger -from wic import pluginbase -from wic.utils import errors -from wic.utils.oe.misc import get_bitbake_var - -__ALL__ = ['PluginMgr', 'pluginmgr'] - -PLUGIN_TYPES = ["imager", "source"] - -PLUGIN_DIR = "/lib/wic/plugins" # relative to scripts -SCRIPTS_PLUGIN_DIR = "scripts" + PLUGIN_DIR - -class PluginMgr(): - plugin_dirs = {} - - # make the manager class as singleton - _instance = None - def __new__(cls, *args, **kwargs): - if not cls._instance: - cls._instance = super(PluginMgr, cls).__new__(cls, *args, **kwargs) - - return cls._instance - - def __init__(self): - wic_path = os.path.dirname(__file__) - eos = wic_path.rfind('scripts') + len('scripts') - scripts_path = wic_path[:eos] - self.scripts_path = scripts_path - self.plugin_dir = scripts_path + PLUGIN_DIR - self.layers_path = None - - def _build_plugin_dir_list(self, plugin_dir, ptype): - if self.layers_path is None: - self.layers_path = get_bitbake_var("BBLAYERS") - layer_dirs = [] - - if self.layers_path is not None: - for layer_path in self.layers_path.split(): - path = os.path.join(layer_path, SCRIPTS_PLUGIN_DIR, ptype) - layer_dirs.append(path) - - path = os.path.join(plugin_dir, ptype) - layer_dirs.append(path) - - return layer_dirs - - def append_dirs(self, dirs): - for path in dirs: - self._add_plugindir(path) - - # load all the plugins AGAIN - self._load_all() - - def _add_plugindir(self, path): - path = os.path.abspath(os.path.expanduser(path)) - - if not os.path.isdir(path): - return - - if path not in self.plugin_dirs: - self.plugin_dirs[path] = False - # the value True/False means "loaded" - - def _load_all(self): - for (pdir, loaded) in self.plugin_dirs.items(): - if loaded: - continue - - sys.path.insert(0, pdir) - for mod in [x[:-3] for x in os.listdir(pdir) if x.endswith(".py")]: - if mod and mod != '__init__': - if mod in sys.modules: - #self.plugin_dirs[pdir] = True - msger.warning("Module %s already exists, skip" % mod) - else: - try: - pymod = __import__(mod) - self.plugin_dirs[pdir] = True - msger.debug("Plugin module %s:%s imported"\ - % (mod, pymod.__file__)) - except ImportError as err: - msg = 'Failed to load plugin %s/%s: %s' \ - % (os.path.basename(pdir), mod, err) - msger.warning(msg) - - del sys.path[0] - - def get_plugins(self, ptype): - """ the return value is dict of name:class pairs """ - - if ptype not in PLUGIN_TYPES: - raise errors.CreatorError('%s is not valid plugin type' % ptype) - - plugins_dir = self._build_plugin_dir_list(self.plugin_dir, ptype) - - self.append_dirs(plugins_dir) - - return pluginbase.get_plugins(ptype) - - def get_source_plugins(self): - """ - Return list of available source plugins. - """ - plugins_dir = self._build_plugin_dir_list(self.plugin_dir, 'source') - - self.append_dirs(plugins_dir) - - return self.get_plugins('source') - - - def get_source_plugin_methods(self, source_name, methods): - """ - The methods param is a dict with the method names to find. On - return, the dict values will be filled in with pointers to the - corresponding methods. If one or more methods are not found, - None is returned. - """ - return_methods = None - for _source_name, klass in self.get_plugins('source').items(): - if _source_name == source_name: - for _method_name in methods: - if not hasattr(klass, _method_name): - msger.warning("Unimplemented %s source interface for: %s"\ - % (_method_name, _source_name)) - return None - func = getattr(klass, _method_name) - methods[_method_name] = func - return_methods = methods - return return_methods - -pluginmgr = PluginMgr() |