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# vim: fileencoding=utf-8
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#
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import os
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import re
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import stat
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import shutil
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from ..utils.files import join_paths
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from .template_engine import TemplateEngine, Variables, ConditionFailed,\
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TemplateParametersChecker, DIR, FILE,\
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IncorrectParameter
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from ..utils.io_module import IOModule
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from collections import OrderedDict
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from ..utils.mount import Mounts
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class TemplateActionError(Exception):
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pass
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class TemplateError(Exception):
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pass
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class SystemAction:
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pass
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class TemplateAction:
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def __init__(self, output_module=IOModule(),
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chroot_path='/', mounts=None):
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self.output = output_module
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self.mounts = mounts
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self.chroot_path = chroot_path
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self.exec_list = OrderedDict()
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self.DIRECTORY_APPENDS = {
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'remove': self._append_remove_directory,
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'clear': self._append_clear_directory,
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'replace': self._append_replace_directory,
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'link': self._append_link_directory,
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'join': self._append_join_directory,
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'skip': self._append_skip_directory
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}
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self.FILE_APPENDS = {
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'replace': self._append_replace_file,
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'remove': self._append_remove_file,
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'clear': self._append_clear_file,
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'link': self._append_link_file,
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'join': self._append_join_file,
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'before': self._append_before_file,
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'after': self._append_after_file,
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'skip': self._append_skip_file
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}
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@property
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def available_appends(self):
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appends_set = set(self.DIRECTORY_APPENDS.keys()).union(
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set(self.FILE_APPENDS.keys()))
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return appends_set
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def process_template_directory(self, target_path, template_path,
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parameters={}):
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'''Метод для выполнения шаблона директории.'''
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self.template_path = template_path
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self.target_path = target_path
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try:
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self.template_parameters = TemplateParametersChecker(
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parameters,
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template_type=DIR,
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chroot_path=self.chroot_path)
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except IncorrectParameter as error:
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self.output.set_error('Incorrect parameter: {}'.format(str(error)))
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return
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self.output.console_output.print_default(
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'With parameters: {}\n'.
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format(self.template_parameters._parameters_dictionary)
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)
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self.output.set_info('Template path: {}'.format(self.template_path))
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self.output.set_info('Target directory: {}'.format(self.target_path))
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# Методы соответствующие разным значениям append для директорий.
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def _append_join_directory(self):
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'''Создать каталог.'''
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self._create_directory()
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def _append_remove_directory(self):
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'''Удалить каталог и все его содержимое.'''
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pass
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def _append_clear_directory(self):
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'''Очистить содержимое каталога, если каталог есть.'''
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pass
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def _append_replace_directory(self):
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'''Очистить содержимое каталога или создать его.'''
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pass
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def _append_link_directory(self):
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'''Создать символическую ссылку на указанный каталог.'''
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pass
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def _append_skip_directory(self):
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pass
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# Непосредственно действия с директориями.
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def _create_directory(self, target_path=''):
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if not target_path:
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target_path = self.target_path
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if os.access(target_path, os.F_OK):
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if self.template_parameters.chmod:
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self.chmod_directory(target_path)
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if self.template_parameters.chown:
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self.chown_directory(target_path)
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return True
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directory = target_path
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directories_to_create = [target_path]
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directory = os.path.dirname(directory)
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while not os.access(directory, os.F_OK) and directory:
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directories_to_create.append(directory)
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directory = os.path.dirname(directory)
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try:
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current_mod, current_uid, current_gid = self.get_file_info(
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directory,
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'all')
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current_chown = {'uid': current_uid, 'gid': current_gid}
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except OSError:
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self.output.set_error('No access to the directory: {}'.format(
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directory))
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return False
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directories_to_create.reverse()
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for directory_path in directories_to_create:
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try:
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os.mkdir(directory_path)
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if self.template_parameters.chmod:
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self.chmod_directory(directory_path)
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else:
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self.chmod_directory(directory_path,
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chmod_value=current_mod)
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if self.template_parameters.chown:
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self.chown_directory
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else:
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self.chown_directory(directory_path,
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chown_value=current_chown)
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except OSError as error:
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self.output.set_error('Failed to create directory: {}'.
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format(directory_path))
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self.output.set_error('Reason: {}'.format(str(error)))
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return False
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return True
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def _remove_directory(self, target_path):
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if os.path.isdir(target_path) or os.path.exists(target_path):
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try:
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if os.path.islink(target_path):
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os.unlink(target_path)
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else:
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shutil.rmtree(target_path)
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return True
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except Exception as error:
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self.output.set_error("Failed to delete the directory: {}".
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format(target_path))
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self.output.set_error("Reason: {}".
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format(str(error)))
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return False
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else:
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self.output.set_error("Failed to delete the directory: {}".
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format(target_path))
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self.output.set_error(
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"Target file is not directory or not exists.".
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format(target_path))
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return False
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def _clear_directory(self, target_path):
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if os.path.isdir(target_path) and os.path.exists(target_path):
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for node in os.scandir(target_path):
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if node.is_dir():
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if self._remove_directory(node.path):
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return True
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else:
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self.output.set_error('Failed to delete directory: {}'.
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format(target_path))
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else:
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try:
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os.remove(node.path)
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return True
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except OSError:
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self.output.set_error('Failed to delete directory: {}'.
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format(target_path))
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else:
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self.output.set_error('failed to delete directory: {}'.
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format(target_path))
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self.output.set_error(
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'target file is not directory or does not exist: {}'.
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format(target_path))
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def _link_directory(self, target_path):
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if not self.source:
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self.output.set_error("'source' parameter is not defined for "
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"'append = link' in template {}".
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format(self.template_path))
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self.output.set_error('Failed to create symlink: {0} -> {1}'.
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format(target_path, self.source))
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return False
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if not os.path.exists(self.source):
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self.output.set_error("'source' file does not exist for "
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"'append = link' in template {}".
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format(self.template_path))
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self.output.set_error('Failed to create symlink: {0} -> {1}'.
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format(target_path, self.source))
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return False
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try:
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os.symlink(self.source, target_path, target_is_directory=True)
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print('linked: {0} -> {1}'.format(os.path.basename(target_path),
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os.path.basename(self.source)))
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return True
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except OSError:
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self.output.set_error('Template error: {}'.
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format(self.template_path))
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self.output.set_error('Failed to create symlink: {0} -> {1}'.
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format(target_path, self.source))
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return False
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def process_template_file(self, target_path, template_path,
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template_text='', parameters={}):
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self.template_text = template_text
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self.template_path = template_path
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self.target_path = target_path
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try:
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self.template_parameters = TemplateParametersChecker(
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parameters,
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template_type=FILE,
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chroot_path=self.chroot_path)
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except IncorrectParameter as error:
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self.output.set_error('Incorrect parameter: {}'.format(str(error)))
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return
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self.output.console_output.print_default(
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'With parameters: {}\n'.
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format(self.template_parameters._parameters_dictionary)
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)
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self.output.set_info('Template path: {}'.format(self.template_path))
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self.output.set_info('Target file: {}.\nTemplate text:'.
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format(self.target_path))
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self.output.console_output.print_default(self.template_text + '\n\n')
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# Методы соответствующие значениями параметра append для файлов шаблонов.
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def _append_replace_file(self):
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pass
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def _append_remove_file(self):
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pass
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def _append_clear_file(self):
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pass
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def _append_link_file(self):
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pass
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def _append_join_file(self):
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pass
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def _append_before_file(self):
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pass
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def _append_after_file(self):
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pass
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def _append_skip_file(self):
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pass
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# Методы для работы непосредственно с файлами.
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def join_file(self, target_path, option=False):
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pass
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def remove_file(self, target_path):
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try:
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if os.path.islink(target_path):
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try:
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os.unlink(target_path)
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return True
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except OSError:
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self.output.set_error('Template error: {}'.
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format(target_path))
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self.output.set_error('Failed to delete the link: {}'.
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format(target_path))
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return False
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if os.path.isfile(target_path):
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try:
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os.remove(target_path)
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return True
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except OSError:
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self.output.set_error('Template error: {}'.
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format(target_path))
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self.output.set_error('Failed to delete the file: {}'.
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format(target_path))
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finally:
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pass
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def clear_file(self, target_path):
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try:
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with open(target_path, 'w') as f:
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f.truncate(0)
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except IOError:
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self.output.set_error("Template error: {}".
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format(self.template_path))
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self.output.set_error("Failed to clear the file: {}".
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format(target_path))
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return False
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def link_file(self, target_path):
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pass
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def chown_directory(self, target_path, chown_value={}):
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"""Сменить владельца директории."""
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if not chown_value:
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chown_value = self.template_parameters.chown
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print('chown value = {}'.format(chown_value))
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try:
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os.chown(target_path, chown_value['uid'], chown_value['gid'])
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except (OSError, Exception) as error:
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# возможно потребуются дополнительные проверки.
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self.output.set_error('Can not chown directory: {}'.
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format(target_path))
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return False
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def chmod_directory(self, target_path, chmod_value=False):
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"""Сменить права доступа к директории."""
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if not chmod_value:
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chmod_value = self.template_parameters.chmod
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print('chmod value = {}'.format(chmod_value))
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try:
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os.chmod(target_path, chmod_value)
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except (OSError, Exception) as error:
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# возможно потребуются дополнительные проверки.
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self.output.set_error('Can not chmod directory: {}'.
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format(target_path))
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self.output.set_error('reason: {}'.format(str(error)))
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return False
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def chown_file(self, target_path, check_existation=True):
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"""Сменить владельца файла."""
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try:
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if check_existation and not os.path.exists(target_path):
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open(target_path, 'w').close()
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os.lchown(target_path, self.chown['uid'], self.chown['gid'])
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return True
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except (OSError, Exception) as error:
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# возможно потребуются дополнительные проверки.
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self.output.set_error('Can not chown file: {}'.format(target_path))
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return False
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def chmod_file(self, target_path, check_existation=True):
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"""Сменить права доступа к директории."""
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try:
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if check_existation and not os.path.exists(target_path):
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open(target_path, 'w').close()
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os.chmod(target_path, self.chmod)
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return True
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except (OSError, Exception) as error:
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# возможно потребуются дополнительные проверки.
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self.output.set_error('Can not chmod file: {}'.format(target_path))
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return False
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def get_file_info(self, path, info='all'):
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file_stat = os.stat(path)
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if info == 'all':
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return stat.S_IMODE(file_stat.st_mode), file_stat.st_uid,\
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file_stat.st_gid
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if info == 'mode':
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return stat.S_IMODE(file_stat.st_mode)
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if info == 'owner':
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return file_stat.st_uid, file_stat.st_gid
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def set_uid_gid_error(self, path, uid, gid, template_path=''):
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import pwd
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import grp
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try:
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user_name = pwd.getpwuid(uid).pw_name
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except (TypeError, KeyError):
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user_name = str(uid)
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try:
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group_name = grp.getgrgid(gid).gr_name
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except (TypeError, KeyError):
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group_name = str(gid)
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owner = '{0}:{1}'.format(user_name, group_name)
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if template_path:
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self.output.set_error('Failed to process template file {}'.
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template_path)
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# !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
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# !! описать ошибку !!
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# !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
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self.output.set_error('error with owner: {}'.format(owner))
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def is_vfat(self, path):
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if self.mounts is None:
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self.mounts = Mounts()
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if self.mounts.get_from_fstab(what=self.mounts.TYPE,
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where=self.mounts.DIR,
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is_in=path) in ('vfat', 'ntfs-3g',
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'ntfs'):
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return True
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return False
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def check_os_error(self, error, path):
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if hasattr(error, 'errno') and error.errno == os.errno.EPERM:
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if self.is_vfat(path):
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return True
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if hasattr(error, 'errno') and error.errno == os.errno.EACCES and\
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'var/calculate/remote' in path:
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return True
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return False
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def _clear_parameters(self):
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'''Метод для удаления данных о шаблоне директории после
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его выполнения.'''
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try:
|
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|
del(self.template_parameters)
|
|
|
except NameError:
|
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|
pass
|
|
|
|
|
|
|
|
|
class DirectoryProcessor:
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chmod_regex = re.compile(r'\d{3}')
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def __init__(self, action, datavars_module=Variables(), package='',
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output_module=IOModule(), test_mode=False):
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self.action = action
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self.chroot_path = datavars_module.main.cl_chroot_path
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if not test_mode:
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self.cl_chroot_path = datavars_module.main.cl_chroot_path
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else:
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self.cl_chroot_path = datavars_module.test.test_root
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|
self.datavars_module = datavars_module
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self.output = output_module
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self.template_action = TemplateAction(output_module=self.output,
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chroot_path=self.chroot_path)
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self.inheritable_parameters =\
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set(TemplateParametersChecker.inheritable_parameters)
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self.template_engine = TemplateEngine(datavars_module=datavars_module)
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self.template_paths = (self.datavars_module.
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main.cl_template_path.split(','))
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self.for_package = package
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self.processed_packages = []
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self.packages_to_merge = []
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self.packages_file_paths = {}
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def process_template_directories(self):
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# Проходим каталоги из main.cl_template.path
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for directory_path in self.template_paths:
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directory_path = directory_path.strip()
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entries = os.scandir(directory_path)
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for node in entries:
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self.walk_directory_tree(node.path,
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self.cl_chroot_path,
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{}, set())
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if self.for_package:
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self.output.set_info('Processing packages from merge parameter...')
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self.processed_packages.append(self.for_package)
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self.merge_packages()
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def merge_packages(self):
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not_merged_packages = []
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while self.packages_to_merge:
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self.for_package = self.packages_to_merge.pop()
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if self.for_package not in self.packages_file_paths:
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self.output.set_error(
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"Error: package '{0}' not found for action '{1}'.".
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format(self.for_package, self.action)
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)
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|
not_merged_packages.append(self.for_package)
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|
continue
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for template_path in self.packages_file_paths[self.for_package]:
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|
base_directory, queue = self.get_directories_queue(
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template_path
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|
)
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|
first_directory = queue.pop()
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|
first_directory_path = os.path.join(base_directory,
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|
first_directory)
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|
self.walk_directory_tree(first_directory_path,
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|
self.cl_chroot_path, {}, set(),
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|
directories_queue=queue)
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|
self.processed_packages.append(self.for_package)
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|
if not_merged_packages:
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|
self.output.set_error('Packages {} is not merged.'.
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|
format(','.join(self.packages_to_merge)))
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|
else:
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|
self.output.set_success('All packages are merged...')
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def get_directories_queue(self, path):
|
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|
directories_queue = []
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|
for base_dir in self.template_paths:
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|
base_dir = base_dir.strip()
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|
if path.startswith(base_dir):
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|
base_directory = base_dir
|
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|
break
|
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|
|
|
|
while path != base_directory:
|
|
|
path, dir_name = os.path.split(path)
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|
|
directories_queue.append(dir_name)
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|
|
|
return base_directory, directories_queue
|
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|
|
|
def walk_directory_tree(self, current_directory_path, target_path,
|
|
|
directory_parameters, directory_env,
|
|
|
directories_queue=[]):
|
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|
template_files = []
|
|
|
template_directories = []
|
|
|
directory_name = os.path.basename(current_directory_path)
|
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|
|
|
|
current_env = directory_env.copy()
|
|
|
current_target_path = target_path
|
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|
|
|
|
directory_parameters = directory_parameters.copy()
|
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|
|
|
|
entries = os.scandir(current_directory_path)
|
|
|
self.template_engine.change_directory(current_directory_path)
|
|
|
for node in entries:
|
|
|
# Временное, вместо этого добавить переменную ignore_files.
|
|
|
if node.name.endswith('.swp'):
|
|
|
continue
|
|
|
if node.is_dir():
|
|
|
template_directories.append(node.path)
|
|
|
elif node.is_file():
|
|
|
template_files.append(node.name)
|
|
|
|
|
|
# обрабатываем в первую очередь шаблон директории.
|
|
|
if '.calculate_directory' in template_files:
|
|
|
template_files.remove('.calculate_directory')
|
|
|
|
|
|
try:
|
|
|
self.template_engine.process_template('.calculate_directory',
|
|
|
env=current_env)
|
|
|
except ConditionFailed:
|
|
|
self.output.set_warning('Condition failed in {}'.
|
|
|
format(current_directory_path))
|
|
|
self.output.console_output.print_default('\n')
|
|
|
return
|
|
|
except Exception as error:
|
|
|
self.output.set_error('Template error: {0} \nTemplate: {1},'
|
|
|
' lineno: {2}'.
|
|
|
format(str(error),
|
|
|
current_directory_path,
|
|
|
error.lineno))
|
|
|
return
|
|
|
|
|
|
directory_parameters.update(self.template_engine.parameters)
|
|
|
|
|
|
# Если есть параметр name -- меняем имя текущего каталога.
|
|
|
if 'name' in directory_parameters:
|
|
|
directory_name = directory_parameters['name']
|
|
|
|
|
|
# Если есть параметр path -- меняем текущий путь к целевому
|
|
|
# каталогу.
|
|
|
if 'path' in directory_parameters:
|
|
|
current_target_path = join_paths(self.cl_chroot_path,
|
|
|
directory_parameters['path'])
|
|
|
|
|
|
if directory_parameters.get('append', None) != 'skip':
|
|
|
current_target_path = os.path.join(current_target_path,
|
|
|
directory_name)
|
|
|
if directory_parameters.get('action', None) != self.action:
|
|
|
self.output.set_error(
|
|
|
'Action parameter not found or not relevant: {}'.
|
|
|
format(directory_name))
|
|
|
self.output.console_output.print_default('\n')
|
|
|
return
|
|
|
|
|
|
# Если шаблоны обрабатываются для одного пакета -- проверяем
|
|
|
# параметр package и собираем пути к директориям других
|
|
|
# пакетов, необходимые для merge.
|
|
|
if self.for_package:
|
|
|
if 'package' not in directory_parameters:
|
|
|
self.output.set_warning(
|
|
|
"'package' is not defined for {}".
|
|
|
format(current_directory_path)
|
|
|
)
|
|
|
# считаем наличие параметра package необязательным.
|
|
|
# return
|
|
|
elif directory_parameters['package'] != self.for_package:
|
|
|
package_name = directory_parameters['package']
|
|
|
if package_name in self.packages_file_paths:
|
|
|
self.packages_file_paths[package_name].append(
|
|
|
current_directory_path
|
|
|
)
|
|
|
else:
|
|
|
self.packages_file_paths[package_name] =\
|
|
|
[current_directory_path]
|
|
|
self.output.set_warning(
|
|
|
"'package' parameter is not actual in {}".
|
|
|
format(current_directory_path)
|
|
|
)
|
|
|
return
|
|
|
|
|
|
# Если параметр env содержит несуществующий модуль -- шаблон не
|
|
|
# выполняем.
|
|
|
if 'env' in directory_parameters:
|
|
|
env_to_check = directory_parameters['env'].split(',')
|
|
|
for name in env_to_check:
|
|
|
if name.strip() not in self.datavars_module:
|
|
|
return
|
|
|
del(directory_parameters['env'])
|
|
|
|
|
|
# Если есть параметр merge -- собираем указанные в нем пакеты
|
|
|
# в списке имен пакетов для последующей обработки.
|
|
|
if self.for_package and 'merge' in directory_parameters:
|
|
|
merge_list = directory_parameters['merge'].split(',')
|
|
|
del(directory_parameters['merge'])
|
|
|
for package in merge_list:
|
|
|
self.packages_to_merge.append(package.strip())
|
|
|
|
|
|
# Выполняем действие с директорией.
|
|
|
self.output.set_success('Processing directory: {}'.
|
|
|
format(current_directory_path))
|
|
|
|
|
|
self.template_action.process_template_directory(
|
|
|
current_target_path,
|
|
|
template_path=current_directory_path,
|
|
|
parameters=directory_parameters)
|
|
|
|
|
|
# Оставляем только наследуемые параметры.
|
|
|
directory_parameters = {name: value for name, value in
|
|
|
directory_parameters.items()
|
|
|
if name in self.inheritable_parameters}
|
|
|
|
|
|
if ('chmod' in directory_parameters and
|
|
|
directory_parameters['chmod'].isdigit() and
|
|
|
len(directory_parameters['chmod']) <= 4):
|
|
|
del(directory_parameters['chmod'])
|
|
|
|
|
|
if directories_queue:
|
|
|
next_node = directories_queue.pop()
|
|
|
if next_node in template_files:
|
|
|
template_files = [next_node]
|
|
|
template_directories = []
|
|
|
else:
|
|
|
next_directory_path = os.path.join(current_directory_path,
|
|
|
next_node)
|
|
|
template_files = []
|
|
|
template_directories = [next_directory_path]
|
|
|
|
|
|
# обрабатываем файлы шаблонов хранящихся в директории.
|
|
|
for template_name in template_files:
|
|
|
template_parameters = {}
|
|
|
template_parameters = directory_parameters.copy()
|
|
|
template_path = os.path.join(current_directory_path, template_name)
|
|
|
|
|
|
try:
|
|
|
self.template_engine.process_template(template_name,
|
|
|
env=current_env.copy())
|
|
|
except ConditionFailed:
|
|
|
self.output.set_warning('Condition failed for: {}'.
|
|
|
format(template_name))
|
|
|
continue
|
|
|
except Exception as error:
|
|
|
self.output.set_error('Template error: {0} in template {1}'.
|
|
|
format(str(error), template_path))
|
|
|
continue
|
|
|
|
|
|
template_parameters.update(self.template_engine.parameters)
|
|
|
template_text = self.template_engine.template_text
|
|
|
|
|
|
if template_parameters.get('action', None) != self.action:
|
|
|
self.output.set_warning(
|
|
|
'Action parameter not found or not relevant.'
|
|
|
)
|
|
|
continue
|
|
|
|
|
|
if 'action' in template_parameters:
|
|
|
del(template_parameters['action'])
|
|
|
|
|
|
if self.for_package:
|
|
|
if 'package' not in template_parameters:
|
|
|
self.output.set_warning("'package' is not defined for {}".
|
|
|
format(template_path))
|
|
|
# считаем параметр package необязательным.
|
|
|
# continue
|
|
|
elif template_parameters['package'] != self.for_package:
|
|
|
package_name = template_parameters['package']
|
|
|
if package_name in self.packages_file_paths:
|
|
|
self.packages_file_paths[package_name].append(
|
|
|
template_path
|
|
|
)
|
|
|
else:
|
|
|
self.packages_file_paths[package_name] =\
|
|
|
[template_path]
|
|
|
self.output.set_warning(
|
|
|
"'package' parameter is not actual in {}".
|
|
|
format(template_name)
|
|
|
)
|
|
|
continue
|
|
|
|
|
|
if 'merge' in template_parameters:
|
|
|
merge_list = template_parameters['merge'].split(',')
|
|
|
del(template_parameters['merge'])
|
|
|
for package_name in merge_list:
|
|
|
if package_name not in self.processed_packages:
|
|
|
self.packages_to_merge.append(package_name.strip())
|
|
|
|
|
|
# Если параметр env содержит несуществующий модуль -- шаблон не
|
|
|
# выполняем.
|
|
|
if 'env' in template_parameters:
|
|
|
env_to_check = template_parameters['env'].split(',')
|
|
|
for name in env_to_check:
|
|
|
if name.strip() not in self.datavars_module:
|
|
|
continue
|
|
|
del(template_parameters['env'])
|
|
|
|
|
|
if 'name' in template_parameters:
|
|
|
template_name = template_parameters['name']
|
|
|
|
|
|
if 'path' in template_parameters:
|
|
|
target_file_path = join_paths(self.cl_chroot_path,
|
|
|
template_parameters['path'],
|
|
|
template_name)
|
|
|
else:
|
|
|
target_file_path = join_paths(current_target_path,
|
|
|
template_name)
|
|
|
|
|
|
# Выполняем действие с использованием шаблона.
|
|
|
self.output.set_success('Processing template: {}...'.
|
|
|
format(template_name))
|
|
|
self.template_action.process_template_file(
|
|
|
target_file_path,
|
|
|
template_path,
|
|
|
template_text=template_text,
|
|
|
parameters=template_parameters)
|
|
|
|
|
|
# проходимся далее по директориям.
|
|
|
for directory_path in template_directories:
|
|
|
self.walk_directory_tree(directory_path, current_target_path,
|
|
|
directory_parameters, current_env,
|
|
|
directories_queue=directories_queue)
|
