def _get_module_names_from_folder(self, folder, prefix='mod_'):
"""List a given folder and find all possible module names.
Module names:
-------------
Module names start with the "mod_" and don't end with .pyc or .pyo.
Consequences:
-------------
Valid modules need to have an existing .py file or be folder-modules
(don't name a folder module mod_foo.pyc :) ), even if they are
actually loaded from the .pyc or .pyo in the end.
This is done so that dangling .pyc/.pyo file from a module
that was removed are not loaded by mistake.
This situation shouldn't really happen if modRana is installed from a package,
as all .pyc files are purged during package upgrade and regenerated.
"""
if USING_QRC:
# if we are running from qrc, we need to use the pyotherside function for enumerating
# the modules stored in the qrc "bundle"
import pyotherside
module_names = filter(
lambda x: x[0:len(prefix)] == prefix,
pyotherside.qrc_list_dir(os.path.join("/", folder)))
else:
module_names = filter(lambda x: x[0:len(prefix)] == prefix,
os.listdir(folder))
# remove the extension
module_names = map(lambda x: os.path.splitext(x)[0], module_names)
# return a set of unique module names
# * like this, two module names will not be returned if there are
# both py and pyc files
return set(module_names)
def _getModuleNamesFromFolder(self, folder, prefix='mod_'):
"""list a given folder and find all possible module names
Module names:
Module names start with the "mod_" and don't end with .pyc or .pyo.
Consequences:
Valid modules need to have an existing .py file or be folder-modules
(don't name a folder module mod_foo.pyc :) ), even if they are
actually loaded from the .pyc or .pyo in the end.
This is done so that dangling .pyc/.pyo file from a module
that was removed are not loaded by mistake.
This situation shouldn't really happen if modRana is installed from a package,
as all .pyc files are purged during package upgrade and regenerated."""
if USING_QRC:
# if we are running from qrc, we need to use the pyotherside function for enumerating
# the modules stored in the qrc "bundle"
import pyotherside
moduleNames = filter(
lambda x: x[0:len(prefix)] == prefix, pyotherside.qrc_list_dir(os.path.join("/", folder))
)
else:
moduleNames = filter(
lambda x: x[0:len(prefix)] == prefix, os.listdir(folder)
)
# remove the extension
moduleNames = map(lambda x: os.path.splitext(x)[0], moduleNames)
# return a set of unique module names
# * like this, two module names will not be returned if there are
# both py and pyc files
return set(moduleNames)
def walk(root):
for entry in pyotherside.qrc_list_dir(root):
name = os.path.join(root, entry)
if pyotherside.qrc_is_dir(name):
walk(name)
else:
print(name, '=', len(pyotherside.qrc_get_file_contents(name)), 'bytes')
def internal_listdir(path):
"""Internal listdir function that works on both normal files and files
bundled in qrc.
:param str path: path to the folder to list
:returns: folder contents
:rtype: list of strings
"""
if qrc.is_qrc:
return pyotherside.qrc_list_dir(path)
else:
return os.listdir(path)
def internal_listdir(path):
"""Internal listdir function that works on both normal files and files
bundled in qrc.
:param str path: path to the folder to list
:returns: folder contents
:rtype: list of strings
"""
if qrc.is_qrc:
return pyotherside.qrc_list_dir(path)
else:
return os.listdir(path)
def export_from_qrc(root, target):
"""Recursively export a given qrc subtree as given by root
to the target folder.
"""
#log.debug("exporting %s from qrc", root)
try:
file_counter = 0
folder_counter = 0
for entry in pyotherside.qrc_list_dir(root):
name = os.path.join(root, entry)
if pyotherside.qrc_is_dir(name):
#log.debug('Creating directory: %s', name)
os.makedirs(os.path.join(target, name))
folder_counter += 1
export_from_qrc(name, os.path.join(target, name))
else:
data = pyotherside.qrc_get_file_contents(name)
#log.debug('Creating file: %s (%d bytes)', name, len(data))
with open(name, "wb") as f:
f.write(data)
file_counter += 1
#log.debug("%d files and %d folders exported from %s", file_counter, folder_counter, root)
except Exception:
log.exception("qrc export from %s to %s failed", root, target)
def export_from_qrc(root, target):
"""Recursively export a given qrc subtree as given by root
to the target folder.
"""
#log.debug("exporting %s from qrc", root)
try:
file_counter = 0
folder_counter = 0
for entry in pyotherside.qrc_list_dir(root):
name = os.path.join(root, entry)
if pyotherside.qrc_is_dir(name):
#log.debug('Creating directory: %s', name)
os.makedirs(os.path.join(target, name))
folder_counter += 1
export_from_qrc(name, os.path.join(target, name))
else:
data = pyotherside.qrc_get_file_contents(name)
#log.debug('Creating file: %s (%d bytes)', name, len(data))
with open(name, "wb") as f:
f.write(data)
file_counter += 1
#log.debug("%d files and %d folders exported from %s", file_counter, folder_counter, root)
except Exception:
log.exception("qrc export from %s to %s failed", root, target)
for entry in pyotherside.qrc_list_dir(root):
name = os.path.join(root, entry)
if pyotherside.qrc_is_dir(name):
walk(name)
else:
print(name, '=', len(pyotherside.qrc_get_file_contents(name)), 'bytes')
walk('/')
print('='*30)
print(pyotherside.qrc_get_file_contents('qrc_example.py').decode('utf-8'))
print('='*30)
try:
print('dir exists with number', pyotherside.qrc_is_dir(123))
except Exception as e:
print('got exception (as expected):', e)
try:
print('file exists with none', pyotherside.qrc_is_file(None))
except Exception as e:
print('got exception (as expected):', e)
try:
print('dir entries with invalid', pyotherside.qrc_list_dir('/nonexistent'))
except Exception as e:
print('got exception (as expected):', e)
try:
print('file contents with invalid', pyotherside.qrc_get_file_contents('/qrc_example.qml.nonexistent'))
except Exception as e:
print('got exception (as expected):', e)
