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# -*- coding: utf-8 -*-
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# Copyright 2015-2016 Mir Calculate. http://www.calculate-linux.org
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#
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# Licensed under the Apache License, Version 2.0 (the "License");
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# you may not use this file except in compliance with the License.
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# You may obtain a copy of the License at
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#
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# http://www.apache.org/licenses/LICENSE-2.0
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#
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# Unless required by applicable law or agreed to in writing, software
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# distributed under the License is distributed on an "AS IS" BASIS,
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# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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# See the License for the specific language governing permissions and
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# limitations under the License.
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from contextlib import contextmanager
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import hashlib
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import json
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import os
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import sys
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from os import path
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from calculate.lib.datavars import SimpleDataVars, Variable
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from calculate.install.distr import Distributive
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from calculate.lib.cl_lang import (setLocalTranslate, getLazyLocalTranslate)
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import time
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from calculate.lib.configparser import ConfigParser
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from calculate.lib.utils.files import (readFile, listDirectory, isMount,
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writeFile)
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from calculate.lib.utils.git import Git
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from .datavars import BuilderError
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from calculate.lib.utils.tools import Locker, LockError
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from .datavars import builder_data
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_ = lambda x: x
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setLocalTranslate('cl_builder3', sys.modules[__name__])
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__ = getLazyLocalTranslate(_)
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UTF8 = 'utf-8'
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class Build(object):
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"""
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Сборка
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"""
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class Status(object):
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Worked, Registered, Removed, Broken, Unregistered = range(5)
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class Parameter(object):
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HashId = "hash"
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Directory = "directory"
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PkgDir = "pkgdir"
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References = "references"
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types = {HashId: Variable.Types.String,
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Directory: Variable.Types.String,
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References: Variable.Types.List,
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PkgDir: Variable.Types.String,
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}
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attrs = {'pkgdir': PkgDir,
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'references': References}
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class Branches(object):
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Stable = Git.Reference.Master
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Unstable = Git.Reference.Update
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def __init__(self, build_id, distributive, parent, restore=False):
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"""
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@type distributive:Distributive
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@type parent:BuildStorage
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"""
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self.distributive = distributive
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self.parent = parent
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self.id = build_id
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self.pkgdir = ""
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self.default_branch = Build.Branches.Stable
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self.references = []
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self._hash = None
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if not restore:
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self.parent.reserve_id(self.id)
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self.status = Build.Status.Registered
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@property
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def build_hash(self):
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if self._hash is None:
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hash_info = self.parent.get_build_hash(self.id)
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if hash_info is None:
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self._hash = self.generate_hash_id()
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else:
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self._hash = hash_info
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return self._hash
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def set_overlays(self, overlays):
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self.references = [self.default_branch for x in overlays]
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@property
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def directory(self):
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return self.distributive.getDirectory()
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def generate_hash_id(self):
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assemble_name = (self.id +
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self.distributive.getType().decode(UTF8)
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+ unicode(time.time())).encode(UTF8)
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return hashlib.sha1(assemble_name).hexdigest()
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def save(self):
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"""
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Сохранить сборку
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"""
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self.parent.save_build(self)
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self.status = Build.Status.Worked
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def remove(self):
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"""
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Удалить сборку
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"""
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if self.status in (Build.Status.Registered, Build.Status.Worked,
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Build.Status.Broken):
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self.parent.remove_build(self)
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self.status = Build.Status.Removed
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self.id = None
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self._hash = None
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def close_distributive(self):
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"""
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Закрыть дистрибутив привязанный к сборке
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"""
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self.distributive.release()
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for child in self.distributive.childs:
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child.release()
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self.distributive.close()
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def restore(self):
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"""
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Восстановить сборку
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"""
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self.distributive.childs = []
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self.save()
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return True
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class BuildStorage(object):
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"""
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Хранилище в котором находится информация о собираемом дистрибутиве
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"""
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ini_file = "/etc/calculate/builder.env"
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data_dir = path.join(builder_data, "mount")
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def __init__(self, data_dir=None, ini_file=None):
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if ini_file:
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self.ini_file = ini_file
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if data_dir:
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self.data_dir = data_dir
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if not path.exists(self.data_dir):
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os.makedirs(self.data_dir)
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self.locker = Locker(fn=self.ini_file)
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def _get_ini(self):
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ini = ConfigParser()
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ini.read(self.ini_file, encoding=UTF8)
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return ini
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def _get_ini_with_lock(self):
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try:
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with self.locker:
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return self._get_ini()
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except LockError:
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raise BuilderError("Failed to lock assemble.env")
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def reserve_id(self, build_id):
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"""
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Зарезервировать id
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"""
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with self.modify_ini() as ini:
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if build_id in ini:
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raise BuilderError(_("Build ID '%s' already in use"))
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else:
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ini.add_section(build_id)
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@contextmanager
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def modify_ini(self):
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try:
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with self.locker:
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ini = self._get_ini()
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yield ini
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with open(self.ini_file, 'w') as f:
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ini.write(f)
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except LockError:
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raise BuilderError("Failed to lock assemble.env")
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def save_build(self, build):
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"""
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Сохранить информация о сборке
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:param build: сборка
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:return:
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"""
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build_id = build.id
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d = {Build.Parameter.Directory: build.distributive.getDirectory(),
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Build.Parameter.HashId: build.build_hash}
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for k, v in Build.Parameter.attrs.items():
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d[v] = SimpleDataVars.serialize(Build.Parameter.types[v],
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getattr(build, k))
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with self.modify_ini() as ini:
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for k, v in d.items():
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ini[build_id][k] = v
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mount_dump_file = self.get_dump_name(build.build_hash)
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with writeFile(mount_dump_file) as f:
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json.dump(build.distributive.serialize(), f)
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return build_id
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def get_dump_name(self, assemble_hash):
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return path.join(self.data_dir, assemble_hash)
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def clear_garbage(self):
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"""
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Удалить все записи о точках монтирования, которые отсутствуют в
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assemble.env
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:return:
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"""
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ini = self._get_ini_with_lock()
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hashes = [ini.get(x, Build.Parameter.HashId,
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fallback="").encode(UTF8) for x in ini]
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for fn in listDirectory(self.data_dir):
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if fn not in hashes:
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try:
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os.unlink(path.join(self.data_dir, fn))
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except (OSError, IOError):
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pass
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def __iter__(self):
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ini = self._get_ini_with_lock()
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return iter([x.encode(UTF8) for x in ini if x != 'DEFAULT'])
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def clear_unmounted(self):
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"""
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Удалить все записи о собираемых дистрибутивах,
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если они не подмонтированы
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:return:
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"""
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with self.modify_ini() as ini:
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dist_dirs = [(x.encode(UTF8),
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ini.get(x, Build.Parameter.Directory,
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fallback="").encode(UTF8))
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for x in ini.keys()]
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for k, v in dist_dirs:
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if v is None or not isMount(v):
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ini.remove_section(k)
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def get_build_hash(self, build_id):
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return self._get_ini_with_lock().get(build_id, Build.Parameter.HashId,
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fallback=None)
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def get_build(self, build_id):
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ini = self._get_ini_with_lock()
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build_hash = ini.get(build_id, Build.Parameter.HashId, fallback=None)
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if build_hash:
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build_dir = ini.get(build_id, Build.Parameter.Directory)
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data = readFile(self.get_dump_name(build_hash))
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if data:
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try:
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data = json.loads(data)
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except ValueError:
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raise BuilderError(
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_("Failed to get distributive information"))
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dist = Distributive.unserialize(data)
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build = Build(build_id, dist, self, restore=True)
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proc_build_dir = path.join(build_dir, 'proc')
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if isMount(build_dir) and isMount(proc_build_dir):
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build.status = build.Status.Worked
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else:
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build.status = build.Status.Broken
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for param_name, ini_name in Build.Parameter.attrs.items():
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value = ini.get(build_id, ini_name, fallback="")
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value = SimpleDataVars.unserialize(
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Build.Parameter.types[ini_name], value)
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setattr(build, param_name, value)
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return build
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def remove_build(self, build):
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try:
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fn = path.join(self.data_dir, build.build_hash)
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if path.exists(fn):
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os.unlink(fn)
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except (OSError, IOError):
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pass
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with self.modify_ini() as ini:
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ini.remove_section(build.id)
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