436 lines
13 KiB
Python
436 lines
13 KiB
Python
# ##### BEGIN GPL LICENSE BLOCK #####
|
|
#
|
|
# 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; either version 2
|
|
# of the License, or (at your option) any later version.
|
|
#
|
|
# 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., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
|
|
#
|
|
# ##### END GPL LICENSE BLOCK #####
|
|
|
|
# <pep8-80 compliant>
|
|
|
|
__all__ = (
|
|
"paths",
|
|
"modules",
|
|
"check",
|
|
"enable",
|
|
"disable",
|
|
"reset_all",
|
|
"module_bl_info",
|
|
)
|
|
|
|
import bpy as _bpy
|
|
_user_preferences = _bpy.context.user_preferences
|
|
|
|
error_duplicates = False
|
|
error_encoding = False
|
|
addons_fake_modules = {}
|
|
|
|
|
|
def paths():
|
|
# RELEASE SCRIPTS: official scripts distributed in Blender releases
|
|
addon_paths = _bpy.utils.script_paths("addons")
|
|
|
|
# CONTRIB SCRIPTS: good for testing but not official scripts yet
|
|
# if folder addons_contrib/ exists, scripts in there will be loaded too
|
|
addon_paths += _bpy.utils.script_paths("addons_contrib")
|
|
|
|
# EXTERN SCRIPTS: external projects scripts
|
|
# if folder addons_extern/ exists, scripts in there will be loaded too
|
|
addon_paths += _bpy.utils.script_paths("addons_extern")
|
|
|
|
return addon_paths
|
|
|
|
|
|
def modules_refresh(module_cache=addons_fake_modules):
|
|
global error_duplicates
|
|
global error_encoding
|
|
import os
|
|
|
|
error_duplicates = False
|
|
error_encoding = False
|
|
|
|
path_list = paths()
|
|
|
|
# fake module importing
|
|
def fake_module(mod_name, mod_path, speedy=True, force_support=None):
|
|
global error_encoding
|
|
|
|
if _bpy.app.debug_python:
|
|
print("fake_module", mod_path, mod_name)
|
|
import ast
|
|
ModuleType = type(ast)
|
|
file_mod = open(mod_path, "r", encoding='UTF-8')
|
|
if speedy:
|
|
lines = []
|
|
line_iter = iter(file_mod)
|
|
l = ""
|
|
while not l.startswith("bl_info"):
|
|
try:
|
|
l = line_iter.readline()
|
|
except UnicodeDecodeError as e:
|
|
if not error_encoding:
|
|
error_encoding = True
|
|
print("Error reading file as UTF-8:", mod_path, e)
|
|
file_mod.close()
|
|
return None
|
|
|
|
if len(l) == 0:
|
|
break
|
|
while l.rstrip():
|
|
lines.append(l)
|
|
try:
|
|
l = line_iter.readline()
|
|
except UnicodeDecodeError as e:
|
|
if not error_encoding:
|
|
error_encoding = True
|
|
print("Error reading file as UTF-8:", mod_path, e)
|
|
file_mod.close()
|
|
return None
|
|
|
|
data = "".join(lines)
|
|
|
|
else:
|
|
data = file_mod.read()
|
|
|
|
file_mod.close()
|
|
|
|
try:
|
|
ast_data = ast.parse(data, filename=mod_path)
|
|
except:
|
|
print("Syntax error 'ast.parse' can't read %r" % mod_path)
|
|
import traceback
|
|
traceback.print_exc()
|
|
ast_data = None
|
|
|
|
body_info = None
|
|
|
|
if ast_data:
|
|
for body in ast_data.body:
|
|
if body.__class__ == ast.Assign:
|
|
if len(body.targets) == 1:
|
|
if getattr(body.targets[0], "id", "") == "bl_info":
|
|
body_info = body
|
|
break
|
|
|
|
if body_info:
|
|
try:
|
|
mod = ModuleType(mod_name)
|
|
mod.bl_info = ast.literal_eval(body.value)
|
|
mod.__file__ = mod_path
|
|
mod.__time__ = os.path.getmtime(mod_path)
|
|
except:
|
|
print("AST error parsing bl_info for %s" % mod_name)
|
|
import traceback
|
|
traceback.print_exc()
|
|
raise
|
|
|
|
if force_support is not None:
|
|
mod.bl_info["support"] = force_support
|
|
|
|
return mod
|
|
else:
|
|
print("fake_module: addon missing 'bl_info' "
|
|
"gives bad performance!: %r" % mod_path)
|
|
return None
|
|
|
|
modules_stale = set(module_cache.keys())
|
|
|
|
for path in path_list:
|
|
|
|
# force all contrib addons to be 'TESTING'
|
|
if path.endswith(("addons_contrib", "addons_extern")):
|
|
force_support = 'TESTING'
|
|
else:
|
|
force_support = None
|
|
|
|
for mod_name, mod_path in _bpy.path.module_names(path):
|
|
modules_stale -= {mod_name}
|
|
mod = module_cache.get(mod_name)
|
|
if mod:
|
|
if mod.__file__ != mod_path:
|
|
print("multiple addons with the same name:\n %r\n %r" %
|
|
(mod.__file__, mod_path))
|
|
error_duplicates = True
|
|
|
|
elif mod.__time__ != os.path.getmtime(mod_path):
|
|
print("reloading addon:",
|
|
mod_name,
|
|
mod.__time__,
|
|
os.path.getmtime(mod_path),
|
|
mod_path,
|
|
)
|
|
del module_cache[mod_name]
|
|
mod = None
|
|
|
|
if mod is None:
|
|
mod = fake_module(mod_name,
|
|
mod_path,
|
|
force_support=force_support)
|
|
if mod:
|
|
module_cache[mod_name] = mod
|
|
|
|
# just in case we get stale modules, not likely
|
|
for mod_stale in modules_stale:
|
|
del module_cache[mod_stale]
|
|
del modules_stale
|
|
|
|
|
|
def modules(module_cache=addons_fake_modules, refresh=True):
|
|
if refresh:
|
|
modules_refresh(module_cache)
|
|
|
|
mod_list = list(module_cache.values())
|
|
mod_list.sort(key=lambda mod: (mod.bl_info["category"],
|
|
mod.bl_info["name"],
|
|
))
|
|
return mod_list
|
|
|
|
|
|
def check(module_name):
|
|
"""
|
|
Returns the loaded state of the addon.
|
|
|
|
:arg module_name: The name of the addon and module.
|
|
:type module_name: string
|
|
:return: (loaded_default, loaded_state)
|
|
:rtype: tuple of booleans
|
|
"""
|
|
import sys
|
|
loaded_default = module_name in _user_preferences.addons
|
|
|
|
mod = sys.modules.get(module_name)
|
|
loaded_state = mod and getattr(mod, "__addon_enabled__", Ellipsis)
|
|
|
|
if loaded_state is Ellipsis:
|
|
print("Warning: addon-module %r found module "
|
|
"but without __addon_enabled__ field, "
|
|
"possible name collision from file: %r" %
|
|
(module_name, getattr(mod, "__file__", "<unknown>")))
|
|
|
|
loaded_state = False
|
|
|
|
if mod and getattr(mod, "__addon_persistent__", False):
|
|
loaded_default = True
|
|
|
|
return loaded_default, loaded_state
|
|
|
|
# utility functions
|
|
|
|
|
|
def _addon_ensure(module_name):
|
|
addons = _user_preferences.addons
|
|
addon = addons.get(module_name)
|
|
if not addon:
|
|
addon = addons.new()
|
|
addon.module = module_name
|
|
|
|
|
|
def _addon_remove(module_name):
|
|
addons = _user_preferences.addons
|
|
|
|
while module_name in addons:
|
|
addon = addons.get(module_name)
|
|
if addon:
|
|
addons.remove(addon)
|
|
|
|
|
|
def enable(module_name, default_set=True, persistent=False, handle_error=None):
|
|
"""
|
|
Enables an addon by name.
|
|
|
|
:arg module_name: The name of the addon and module.
|
|
:type module_name: string
|
|
:return: the loaded module or None on failure.
|
|
:rtype: module
|
|
"""
|
|
|
|
import os
|
|
import sys
|
|
from bpy_restrict_state import RestrictBlend
|
|
|
|
if handle_error is None:
|
|
def handle_error():
|
|
import traceback
|
|
traceback.print_exc()
|
|
|
|
# reload if the mtime changes
|
|
mod = sys.modules.get(module_name)
|
|
# chances of the file _not_ existing are low, but it could be removed
|
|
if mod and os.path.exists(mod.__file__):
|
|
mod.__addon_enabled__ = False
|
|
mtime_orig = getattr(mod, "__time__", 0)
|
|
mtime_new = os.path.getmtime(mod.__file__)
|
|
if mtime_orig != mtime_new:
|
|
import imp
|
|
print("module changed on disk:", mod.__file__, "reloading...")
|
|
|
|
try:
|
|
imp.reload(mod)
|
|
except:
|
|
handle_error()
|
|
del sys.modules[module_name]
|
|
return None
|
|
mod.__addon_enabled__ = False
|
|
|
|
# add the addon first it may want to initialize its own preferences.
|
|
# must remove on fail through.
|
|
if default_set:
|
|
_addon_ensure(module_name)
|
|
|
|
# Split registering up into 3 steps so we can undo
|
|
# if it fails par way through.
|
|
|
|
# disable the context, using the context at all is
|
|
# really bad while loading an addon, don't do it!
|
|
with RestrictBlend():
|
|
|
|
# 1) try import
|
|
try:
|
|
mod = __import__(module_name)
|
|
mod.__time__ = os.path.getmtime(mod.__file__)
|
|
mod.__addon_enabled__ = False
|
|
except:
|
|
handle_error()
|
|
_addon_remove(module_name)
|
|
return None
|
|
|
|
# 2) try register collected modules
|
|
# removed, addons need to handle own registration now.
|
|
|
|
# 3) try run the modules register function
|
|
try:
|
|
mod.register()
|
|
except:
|
|
print("Exception in module register(): %r" %
|
|
getattr(mod, "__file__", module_name))
|
|
handle_error()
|
|
del sys.modules[module_name]
|
|
_addon_remove(module_name)
|
|
return None
|
|
|
|
# * OK loaded successfully! *
|
|
mod.__addon_enabled__ = True
|
|
mod.__addon_persistent__ = persistent
|
|
|
|
if _bpy.app.debug_python:
|
|
print("\taddon_utils.enable", mod.__name__)
|
|
|
|
return mod
|
|
|
|
|
|
def disable(module_name, default_set=True, handle_error=None):
|
|
"""
|
|
Disables an addon by name.
|
|
|
|
:arg module_name: The name of the addon and module.
|
|
:type module_name: string
|
|
"""
|
|
import sys
|
|
|
|
if handle_error is None:
|
|
def handle_error():
|
|
import traceback
|
|
traceback.print_exc()
|
|
|
|
mod = sys.modules.get(module_name)
|
|
|
|
# possible this addon is from a previous session and didn't load a
|
|
# module this time. So even if the module is not found, still disable
|
|
# the addon in the user prefs.
|
|
if mod and getattr(mod, "__addon_enabled__", False) is not False:
|
|
mod.__addon_enabled__ = False
|
|
mod.__addon_persistent = False
|
|
|
|
try:
|
|
mod.unregister()
|
|
except:
|
|
print("Exception in module unregister(): %r" %
|
|
getattr(mod, "__file__", module_name))
|
|
handle_error()
|
|
else:
|
|
print("addon_utils.disable: %s not %s." %
|
|
(module_name, "disabled" if mod is None else "loaded"))
|
|
|
|
# could be in more than once, unlikely but better do this just in case.
|
|
if default_set:
|
|
_addon_remove(module_name)
|
|
|
|
if _bpy.app.debug_python:
|
|
print("\taddon_utils.disable", module_name)
|
|
|
|
|
|
def reset_all(reload_scripts=False):
|
|
"""
|
|
Sets the addon state based on the user preferences.
|
|
"""
|
|
import sys
|
|
|
|
# initializes addons_fake_modules
|
|
modules_refresh()
|
|
|
|
# RELEASE SCRIPTS: official scripts distributed in Blender releases
|
|
paths_list = paths()
|
|
|
|
for path in paths_list:
|
|
_bpy.utils._sys_path_ensure(path)
|
|
for mod_name, mod_path in _bpy.path.module_names(path):
|
|
is_enabled, is_loaded = check(mod_name)
|
|
|
|
# first check if reload is needed before changing state.
|
|
if reload_scripts:
|
|
import imp
|
|
mod = sys.modules.get(mod_name)
|
|
if mod:
|
|
imp.reload(mod)
|
|
|
|
if is_enabled == is_loaded:
|
|
pass
|
|
elif is_enabled:
|
|
enable(mod_name)
|
|
elif is_loaded:
|
|
print("\taddon_utils.reset_all unloading", mod_name)
|
|
disable(mod_name)
|
|
|
|
|
|
def module_bl_info(mod, info_basis={"name": "",
|
|
"author": "",
|
|
"version": (),
|
|
"blender": (),
|
|
"location": "",
|
|
"description": "",
|
|
"wiki_url": "",
|
|
"support": 'COMMUNITY',
|
|
"category": "",
|
|
"warning": "",
|
|
"show_expanded": False,
|
|
}
|
|
):
|
|
|
|
addon_info = getattr(mod, "bl_info", {})
|
|
|
|
# avoid re-initializing
|
|
if "_init" in addon_info:
|
|
return addon_info
|
|
|
|
if not addon_info:
|
|
mod.bl_info = addon_info
|
|
|
|
for key, value in info_basis.items():
|
|
addon_info.setdefault(key, value)
|
|
|
|
if not addon_info["name"]:
|
|
addon_info["name"] = mod.__name__
|
|
|
|
addon_info["_init"] = None
|
|
return addon_info
|