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wic: add support to look in all layers and get plugins

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Plugins are looked in 'scripts/lib/mic/plugins/[type]/' directory on all
BBLAYERS variable returned by bitbake environment. If found, it will
be load at runtime.

The user could create your own plugin and keep it inside its layers. For
now the path must be <layer-dir>/scripts/lib/mic/plugins/[type]/. Where
'type' could be 'imager' or 'source'.

(From OE-Core rev: bb6f5d7de1c7ce2680874a74949903db0f5bb91a)

Signed-off-by: João Henrique Ferreira de Freitas <joaohf@gmail.com>
Signed-off-by: Saul Wold <sgw@linux.intel.com>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>
This commit is contained in:
João Henrique Ferreira de Freitas
2014-05-14 22:37:28 -03:00
committed by Richard Purdie
parent 8af57a6ca2
commit 32a811f71b
1 changed files with 23 additions and 5 deletions
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28
scripts/lib/mic/plugin.py
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@@ -20,12 +20,14 @@ import os, sys
from mic import msger
from mic import pluginbase
from mic.utils import errors
from mic.utils.oe.misc import *
__ALL__ = ['PluginMgr', 'pluginmgr']
PLUGIN_TYPES = ["imager", "source"] # TODO "hook"
PLUGIN_DIR = "/lib/mic/plugins" # relative to scripts
SCRIPTS_PLUGIN_DIR = "scripts" + PLUGIN_DIR
class PluginMgr(object):
plugin_dirs = {}
@@ -42,8 +44,23 @@ class PluginMgr(object):
mic_path = os.path.dirname(__file__)
eos = mic_path.find('scripts') + len('scripts')
scripts_path = mic_path[:eos]
self.scripts_path = scripts_path
self.plugin_dir = scripts_path + PLUGIN_DIR
self.layers_path = None
self.plugin_dir = scripts_path + "/lib/mic/plugins"
def _build_plugin_dir_list(self, dl, ptype):
if self.layers_path is None:
self.layers_path = get_bitbake_var("BBLAYERS")
layer_dirs = []
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(dl, ptype)
layer_dirs.append(path)
return layer_dirs
def append_dirs(self, dirs):
for path in dirs:
@@ -56,7 +73,7 @@ class PluginMgr(object):
path = os.path.abspath(os.path.expanduser(path))
if not os.path.isdir(path):
msger.warning("Plugin dir is not a directory or does not exist: %s"\
msger.debug("Plugin dir is not a directory or does not exist: %s"\
% path)
return
@@ -93,8 +110,9 @@ class PluginMgr(object):
if ptype not in PLUGIN_TYPES:
raise errors.CreatorError('%s is not valid plugin type' % ptype)
self._add_plugindir(os.path.join(self.plugin_dir, ptype))
self._load_all()
plugins_dir = self._build_plugin_dir_list(self.plugin_dir, ptype)
self.append_dirs(plugins_dir)
return pluginbase.get_plugins(ptype)