+# Copyright (C) 2010 W. Trevor King <wking@drexel.edu>
+#
+# This file is part of Hooke.
+#
+# Hooke is free software: you can redistribute it and/or modify it
+# under the terms of the GNU Lesser General Public License as
+# published by the Free Software Foundation, either version 3 of the
+# License, or (at your option) any later version.
+#
+# Hooke 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 Lesser General
+# Public License for more details.
+#
+# You should have received a copy of the GNU Lesser General Public
+# License along with Hooke. If not, see
+# <http://www.gnu.org/licenses/>.
+
"""The `plugin` module provides optional submodules that add new Hooke
commands.
"""
import ConfigParser as configparser
+import logging
from ..config import Setting
-from ..util.graph import Node, Graph
+from ..util.pluggable import IsSubclass, construct_graph
PLUGIN_MODULES = [
# ('autopeak', True),
-# ('curvetools', True),
+ ('convfilt', True),
('cut', True),
-# ('fit', True),
+# ('fclamp', True),
# ('flatfilts-rolf', True),
-# ('flatfilts', True),
-# ('generalclamp', True),
-# ('generaltccd', True),
-# ('generalvclamp', True),
+ ('flatfilt', True),
# ('jumpstat', True),
-# ('macro', True),
# ('massanalysis', True),
# ('multidistance', True),
# ('multifit', True),
# ('pcluster', True),
+ ('polymer_fit', True),
# ('procplots', True),
# ('review', True),
# ('showconvoluted', True),
# ('superimpose', True),
-# ('tutorial', True),
-# ('viewer', True),
+# ('tccd', True),
+ ('tutorial', True),
+ ('vclamp', True),
]
"""List of plugin modules and whether they should be included by
default. TODO: autodiscovery
"""
BUILTIN_MODULES = [
+ 'command_stack',
+ 'config',
+ 'curve',
+ 'debug',
+ 'engine',
+ 'license',
+ 'note',
'playlist',
+ 'playlists',
+ 'system',
]
"""List of builtin modules. TODO: autodiscovery
"""
+PLUGIN_SETTING_SECTION = 'plugins'
+"""Name of the config section which controls plugin selection.
+"""
+
# Plugins and settings
"""A pluggable collection of Hooke commands.
Fulfills the same role for Hooke that a software package does for
- an operating system.
+ an operating system: contains a chunk of related commands and
+ routines. Command configuration also happens on the `Plugin`
+ level, with per-plugin sections in the configuration file.
"""
def __init__(self, name):
self.name = name
self.setting_section = '%s plugin' % self.name
self.config = {}
+ self._commands = []
def dependencies(self):
- """Return a list of :class:`Plugin`\s we require."""
+ """Return a list of names of :class:`Plugin`\s we require."""
return []
def default_settings(self):
def commands(self):
"""Return a list of :class:`hooke.command.Command`\s provided.
"""
- return []
+ return list(self._commands)
+
class Builtin (Plugin):
"""A required collection of Hooke commands.
"""
pass
-# Construct plugin dependency graph and load plugin instances.
-def construct_graph(this_modname, submodnames, class_selector,
- assert_name_match=True):
- """Search the submodules `submodnames` of a module `this_modname`
- for class objects for which `class_selector(class)` returns
- `True`. These classes are instantiated, and the `instance.name`
- is compared to the `submodname` (if `assert_name_match` is
- `True`).
-
- The instances are further arranged into a dependency
- :class:`hooke.util.graph.Graph` according to their
- `instance.dependencies()` values. The topologically sorted graph
- is returned.
- """
- instances = {}
- for submodname in submodnames:
- count = len([s for s in submodnames if s == submodname])
- assert count > 0, 'No %s entries: %s' % (submodname, submodnames)
- assert count == 1, 'Multiple (%d) %s entries: %s' \
- % (count, submodname, submodnames)
- this_mod = __import__(this_modname, fromlist=[submodname])
- submod = getattr(this_mod, submodname)
- for objname in dir(submod):
- obj = getattr(submod, objname)
- if class_selector(obj):
- instance = obj()
- if assert_name_match == True and instance.name != submodname:
- raise Exception(
- 'Instance name %s does not match module name %s'
- % (instance.name, submodname))
- instances[instance.name] = instance
- graph = Graph([Node([instances[name] for name in i.dependencies()],
- data=i)
- for i in instances.values()])
- graph.topological_sort()
- return graph
-
-class IsSubclass (object):
- """A safe subclass comparator.
-
- Examples
- --------
-
- >>> class A (object):
- ... pass
- >>> class B (A):
- ... pass
- >>> C = 5
- >>> is_subclass = IsSubclass(A)
- >>> is_subclass(A)
- True
- >>> is_subclass = IsSubclass(A, blacklist=[A])
- >>> is_subclass(A)
- False
- >>> is_subclass(B)
- True
- >>> is_subclass(C)
- False
+# Plugin utility functions
+
+def argument_to_setting(section_name, argument):
+ """Convert an :class:`~hooke.command.Argument` to a
+ `~hooke.conf.Setting`.
+
+ This is useful if, for example, you want to define arguments with
+ configurable default values.
+
+ Conversion is lossy transition, because
+ :class:`~hooke.command.Argument`\s store more information than
+ `~hooke.conf.Setting`\s.
"""
- def __init__(self, base_class, blacklist=None):
- self.base_class = base_class
- if blacklist == None:
- blacklist = []
- self.blacklist = blacklist
- def __call__(self, other):
- try:
- subclass = issubclass(other, self.base_class)
- except TypeError:
- return False
- if other in self.blacklist:
- return False
- return subclass
+ return Setting(section_name, option=argument.name, value=argument.default,
+ type=argument.type, count=argument.count,
+ help=argument._help)
+
+
+# Construct plugin dependency graph and load plugin instances.
PLUGIN_GRAPH = construct_graph(
this_modname=__name__,
"""
def default_settings():
- settings = [Setting(
- 'plugins', help='Enable/disable default plugins.')]
+ settings = [Setting(PLUGIN_SETTING_SECTION,
+ help='Enable/disable default plugins.')]
for pnode in PLUGIN_GRAPH:
if pnode.data.name in BUILTIN_MODULES:
continue # builtin inclusion is not optional
if mod_name == plugin.name][0]
help = 'Commands: ' + ', '.join([c.name for c in plugin.commands()])
settings.append(Setting(
- section='plugins',
+ section=PLUGIN_SETTING_SECTION,
option=plugin.name,
value=str(default_include),
help=help,
return settings
def load_graph(graph, config, include_section):
+ enabled = {}
items = []
for node in graph:
item = node.data
include = config.getboolean(include_section, item.name)
except configparser.NoOptionError:
include = True # non-optional include (e.g. a Builtin)
+ enabled[item.name] = include
if include == True:
- try:
- item.config = dict(config.items(item.setting_section))
- except configparser.NoSectionError:
- pass
+ for dependency in node:
+ if enabled.get(dependency.data.name, None) != True:
+ log = logging.getLogger('hooke')
+ log.warn(
+ 'could not setup plugin %s. unsatisfied dependency on %s.'
+ % (item.name, dependency.data.name))
+ enabled[item.name] = False
+ continue
items.append(item)
return items
projects / hooke.git / blobdiff