diff options
Diffstat (limited to 'scripts/lib/mic/plugin.py')
| -rw-r--r-- | scripts/lib/mic/plugin.py | 156 |
1 files changed, 0 insertions, 156 deletions
diff --git a/scripts/lib/mic/plugin.py b/scripts/lib/mic/plugin.py deleted file mode 100644 index 43afdbc2f2..0000000000 --- a/scripts/lib/mic/plugin.py +++ /dev/null | |||
| @@ -1,156 +0,0 @@ | |||
| 1 | #!/usr/bin/python -tt | ||
| 2 | # | ||
| 3 | # Copyright (c) 2011 Intel, Inc. | ||
| 4 | # | ||
| 5 | # This program is free software; you can redistribute it and/or modify it | ||
| 6 | # under the terms of the GNU General Public License as published by the Free | ||
| 7 | # Software Foundation; version 2 of the License | ||
| 8 | # | ||
| 9 | # This program is distributed in the hope that it will be useful, but | ||
| 10 | # WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY | ||
| 11 | # or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License | ||
| 12 | # for more details. | ||
| 13 | # | ||
| 14 | # You should have received a copy of the GNU General Public License along | ||
| 15 | # with this program; if not, write to the Free Software Foundation, Inc., 59 | ||
| 16 | # Temple Place - Suite 330, Boston, MA 02111-1307, USA. | ||
| 17 | |||
| 18 | import os, sys | ||
| 19 | |||
| 20 | from mic import msger | ||
| 21 | from mic import pluginbase | ||
| 22 | from mic.utils import errors | ||
| 23 | from mic.utils.oe.misc import * | ||
| 24 | |||
| 25 | __ALL__ = ['PluginMgr', 'pluginmgr'] | ||
| 26 | |||
| 27 | PLUGIN_TYPES = ["imager", "source"] | ||
| 28 | |||
| 29 | PLUGIN_DIR = "/lib/mic/plugins" # relative to scripts | ||
| 30 | SCRIPTS_PLUGIN_DIR = "scripts" + PLUGIN_DIR | ||
| 31 | |||
| 32 | class PluginMgr(object): | ||
| 33 | plugin_dirs = {} | ||
| 34 | |||
| 35 | # make the manager class as singleton | ||
| 36 | _instance = None | ||
| 37 | def __new__(cls, *args, **kwargs): | ||
| 38 | if not cls._instance: | ||
| 39 | cls._instance = super(PluginMgr, cls).__new__(cls, *args, **kwargs) | ||
| 40 | |||
| 41 | return cls._instance | ||
| 42 | |||
| 43 | def __init__(self): | ||
| 44 | mic_path = os.path.dirname(__file__) | ||
| 45 | eos = mic_path.find('scripts') + len('scripts') | ||
| 46 | scripts_path = mic_path[:eos] | ||
| 47 | self.scripts_path = scripts_path | ||
| 48 | self.plugin_dir = scripts_path + PLUGIN_DIR | ||
| 49 | self.layers_path = None | ||
| 50 | |||
| 51 | def _build_plugin_dir_list(self, dl, ptype): | ||
| 52 | if self.layers_path is None: | ||
| 53 | self.layers_path = get_bitbake_var("BBLAYERS") | ||
| 54 | layer_dirs = [] | ||
| 55 | |||
| 56 | if self.layers_path is not None: | ||
| 57 | for layer_path in self.layers_path.split(): | ||
| 58 | path = os.path.join(layer_path, SCRIPTS_PLUGIN_DIR, ptype) | ||
| 59 | layer_dirs.append(path) | ||
| 60 | |||
| 61 | path = os.path.join(dl, ptype) | ||
| 62 | layer_dirs.append(path) | ||
| 63 | |||
| 64 | return layer_dirs | ||
| 65 | |||
| 66 | def append_dirs(self, dirs): | ||
| 67 | for path in dirs: | ||
| 68 | self._add_plugindir(path) | ||
| 69 | |||
| 70 | # load all the plugins AGAIN | ||
| 71 | self._load_all() | ||
| 72 | |||
| 73 | def _add_plugindir(self, path): | ||
| 74 | path = os.path.abspath(os.path.expanduser(path)) | ||
| 75 | |||
| 76 | if not os.path.isdir(path): | ||
| 77 | msger.debug("Plugin dir is not a directory or does not exist: %s"\ | ||
| 78 | % path) | ||
| 79 | return | ||
| 80 | |||
| 81 | if path not in self.plugin_dirs: | ||
| 82 | self.plugin_dirs[path] = False | ||
| 83 | # the value True/False means "loaded" | ||
| 84 | |||
| 85 | def _load_all(self): | ||
| 86 | for (pdir, loaded) in self.plugin_dirs.iteritems(): | ||
| 87 | if loaded: continue | ||
| 88 | |||
| 89 | sys.path.insert(0, pdir) | ||
| 90 | for mod in [x[:-3] for x in os.listdir(pdir) if x.endswith(".py")]: | ||
| 91 | if mod and mod != '__init__': | ||
| 92 | if mod in sys.modules: | ||
| 93 | #self.plugin_dirs[pdir] = True | ||
| 94 | msger.warning("Module %s already exists, skip" % mod) | ||
| 95 | else: | ||
| 96 | try: | ||
| 97 | pymod = __import__(mod) | ||
| 98 | self.plugin_dirs[pdir] = True | ||
| 99 | msger.debug("Plugin module %s:%s imported"\ | ||
| 100 | % (mod, pymod.__file__)) | ||
| 101 | except ImportError, err: | ||
| 102 | msg = 'Failed to load plugin %s/%s: %s' \ | ||
| 103 | % (os.path.basename(pdir), mod, err) | ||
| 104 | msger.warning(msg) | ||
| 105 | |||
| 106 | del(sys.path[0]) | ||
| 107 | |||
| 108 | def get_plugins(self, ptype): | ||
| 109 | """ the return value is dict of name:class pairs """ | ||
| 110 | |||
| 111 | if ptype not in PLUGIN_TYPES: | ||
| 112 | raise errors.CreatorError('%s is not valid plugin type' % ptype) | ||
| 113 | |||
| 114 | plugins_dir = self._build_plugin_dir_list(self.plugin_dir, ptype) | ||
| 115 | |||
| 116 | self.append_dirs(plugins_dir) | ||
| 117 | |||
| 118 | return pluginbase.get_plugins(ptype) | ||
| 119 | |||
| 120 | def get_source_plugins(self): | ||
| 121 | """ | ||
| 122 | Return list of available source plugins. | ||
| 123 | """ | ||
| 124 | plugins_dir = self._build_plugin_dir_list(self.plugin_dir, 'source') | ||
| 125 | |||
| 126 | self.append_dirs(plugins_dir) | ||
| 127 | |||
| 128 | plugins = [] | ||
| 129 | |||
| 130 | for _source_name, klass in self.get_plugins('source').iteritems(): | ||
| 131 | plugins.append(_source_name) | ||
| 132 | |||
| 133 | return plugins | ||
| 134 | |||
| 135 | |||
| 136 | def get_source_plugin_methods(self, source_name, methods): | ||
| 137 | """ | ||
| 138 | The methods param is a dict with the method names to find. On | ||
| 139 | return, the dict values will be filled in with pointers to the | ||
| 140 | corresponding methods. If one or more methods are not found, | ||
| 141 | None is returned. | ||
| 142 | """ | ||
| 143 | return_methods = None | ||
| 144 | for _source_name, klass in self.get_plugins('source').iteritems(): | ||
| 145 | if _source_name == source_name: | ||
| 146 | for _method_name in methods.keys(): | ||
| 147 | if not hasattr(klass, _method_name): | ||
| 148 | msger.warning("Unimplemented %s source interface for: %s"\ | ||
| 149 | % (_method_name, _source_name)) | ||
| 150 | return None | ||
| 151 | func = getattr(klass, _method_name) | ||
| 152 | methods[_method_name] = func | ||
| 153 | return_methods = methods | ||
| 154 | return return_methods | ||
| 155 | |||
| 156 | pluginmgr = PluginMgr() | ||
