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# ##### 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 compliant>
"""
This module contains utility functions spesific to blender but
not assosiated with blenders internal data.
"""
import bpy as _bpy
import os as _os
import sys as _sys
from _bpy import home_paths
def _test_import(module_name, loaded_modules):
import traceback
import time
if module_name in loaded_modules:
return None
if "." in module_name:
print("Ignoring '%s', can't import files containing multiple periods." % module_name)
return None
try:
t = time.time()
ret = __import__(module_name)
if _bpy.app.debug:
print("time %s %.4f" % (module_name, time.time() - t))
return ret
except:
traceback.print_exc()
return None
def modules_from_path(path, loaded_modules):
"""
Load all modules in a path and return them as a list.
"""
import traceback
import time
modules = []
for f in sorted(_os.listdir(path)):
if f.endswith(".py"):
# python module
mod = _test_import(f[0:-3], loaded_modules)
elif ("." not in f) and (_os.path.isfile(_os.path.join(path, f, "__init__.py"))):
# python package
mod = _test_import(f, loaded_modules)
else:
mod = None
if mod:
modules.append(mod)
return modules
_loaded = [] # store loaded modules for reloading.
_bpy_types = __import__("bpy_types") # keep for comparisons, never ever reload this.
def load_scripts(reload_scripts=False, refresh_scripts=False):
import traceback
import time
t_main = time.time()
loaded_modules = set()
if refresh_scripts:
original_modules = _sys.modules.values()
def sys_path_ensure(path):
if path not in _sys.path: # reloading would add twice
_sys.path.insert(0, path)
def test_reload(mod):
# reloading this causes internal errors
# because the classes from this module are stored internally
# possibly to refresh internal references too but for now, best not to.
if mod == _bpy_types:
return mod
try:
return reload(mod)
except:
traceback.print_exc()
def test_register(mod):
if refresh_scripts and mod in original_modules:
return
if reload_scripts and mod:
print("Reloading:", mod)
mod = test_reload(mod)
if mod:
register = getattr(mod, "register", None)
if register:
register()
else:
print("\nWarning! '%s' has no register function, this is now a requirement for registerable scripts." % mod.__file__)
_loaded.append(mod)
if reload_scripts:
# reload modules that may not be directly included
for type_class_name in dir(_bpy.types):
type_class = getattr(_bpy.types, type_class_name)
module_name = getattr(type_class, "__module__", "")
if module_name and module_name != "bpy.types": # hard coded for C types
loaded_modules.add(module_name)
for module_name in loaded_modules:
print("Reloading:", module_name)
test_reload(_sys.modules[module_name])
# loop over and unload all scripts
_loaded.reverse()
for mod in _loaded:
func = getattr(mod, "unregister", None)
if func:
func()
_loaded[:] = []
for base_path in script_paths():
for path_subdir in ("", "ui", "op", "io", "cfg"):
path = _os.path.join(base_path, path_subdir)
if _os.path.isdir(path):
sys_path_ensure(path)
for mod in modules_from_path(path, loaded_modules):
test_register(mod)
# load extensions
used_ext = {ext.module for ext in _bpy.context.user_preferences.extensions}
paths = script_paths("extensions")
for path in paths:
sys_path_ensure(path)
for module_name in sorted(used_ext):
mod = _test_import(module_name, loaded_modules)
test_register(mod)
if _bpy.app.debug:
print("Time %.4f" % (time.time() - t_main))
def expandpath(path):
if path.startswith("//"):
return _os.path.join(_os.path.dirname(_bpy.data.filename), path[2:])
return path
_unclean_chars = [0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, \
17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33, 34, \
35, 36, 37, 38, 39, 40, 41, 42, 43, 44, 46, 47, 58, 59, 60, 61, 62, 63, \
64, 91, 92, 93, 94, 96, 123, 124, 125, 126, 127, 128, 129, 130, 131, 132, \
133, 134, 135, 136, 137, 138, 139, 140, 141, 142, 143, 144, 145, 146, \
147, 148, 149, 150, 151, 152, 153, 154, 155, 156, 157, 158, 159, 160, \
161, 162, 163, 164, 165, 166, 167, 168, 169, 170, 171, 172, 173, 174, \
175, 176, 177, 178, 179, 180, 181, 182, 183, 184, 185, 186, 187, 188, \
189, 190, 191, 192, 193, 194, 195, 196, 197, 198, 199, 200, 201, 202, \
203, 204, 205, 206, 207, 208, 209, 210, 211, 212, 213, 214, 215, 216, \
217, 218, 219, 220, 221, 222, 223, 224, 225, 226, 227, 228, 229, 230, \
231, 232, 233, 234, 235, 236, 237, 238, 239, 240, 241, 242, 243, 244, \
245, 246, 247, 248, 249, 250, 251, 252, 253, 254]
_unclean_chars = ''.join([chr(i) for i in _unclean_chars])
def clean_name(name, replace="_"):
"""
Returns a name with characters replaced that may cause problems under various circumstances, such as writing to a file.
All characters besides A-Z/a-z, 0-9 are replaced with "_"
or the replace argumet if defined.
"""
for ch in _unclean_chars:
name = name.replace(ch, replace)
return name
def display_name(name):
"""
Creates a display string from name to be used menus and the user interface.
Capitalize the first letter in all lowercase names, mixed case names are kept as is.
Intended for use with filenames and module names.
"""
name_base = _os.path.splitext(name)[0]
# string replacements
name_base = name_base.replace("_colon_", ":")
name_base = name_base.replace("_", " ")
if name_base.islower():
return name_base.capitalize()
else:
return name_base
# base scripts
_scripts = _os.path.join(_os.path.dirname(__file__), _os.path.pardir, _os.path.pardir)
_scripts = (_os.path.normpath(_scripts), )
def script_paths(*args):
"""
Returns a list of valid script paths from the home directory and user preferences.
Accepts any number of string arguments which are joined to make a path.
"""
scripts = list(_scripts)
# add user scripts dir
user_script_path = _bpy.context.user_preferences.filepaths.python_scripts_directory
for path in home_paths("scripts") + (user_script_path, ):
if path:
path = _os.path.normpath(path)
if path not in scripts and _os.path.isdir(path):
scripts.append(path)
if not args:
return scripts
subdir = _os.path.join(*args)
script_paths = []
for path in scripts:
path_subdir = _os.path.join(path, subdir)
if _os.path.isdir(path_subdir):
script_paths.append(path_subdir)
return script_paths
_presets = _os.path.join(_scripts[0], "presets") # FIXME - multiple paths
def preset_paths(subdir):
'''
Returns a list of paths for a spesific preset.
'''
return (_os.path.join(_presets, subdir), )
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