Files
bearhub/bauh/core/controller.py
2019-08-29 13:37:51 -03:00

257 lines
8.1 KiB
Python
Executable File

from argparse import Namespace
from threading import Thread
from typing import List, Set
from bauh_api.abstract.controller import SoftwareManager, SearchResult
from bauh_api.abstract.handler import ProcessWatcher
from bauh_api.abstract.model import SoftwarePackage, PackageUpdate, PackageHistory
from bauh_api.util.disk import DiskCacheLoader
from bauh_api.util.disk import DiskCacheLoaderFactory
from bauh import ROOT_DIR
SUGGESTIONS_LIMIT = 6
class GenericSoftwareManager(SoftwareManager):
def __init__(self, managers: List[SoftwareManager], disk_loader_factory: DiskCacheLoaderFactory, app_args: Namespace, locale_keys: dict):
super(GenericSoftwareManager, self).__init__(app_args=app_args, app_cache=None, locale_keys=locale_keys, app_root_dir=ROOT_DIR, http_client=None)
self.managers = managers
self.map = {t: m for m in self.managers for t in m.get_managed_types()}
self.disk_loader_factory = disk_loader_factory
self._enabled_map = {} if app_args.check_packaging_once else None
self.thread_prepare = None
def _sort(self, apps: List[SoftwarePackage], word: str) -> List[SoftwarePackage]:
exact_name_matches, contains_name_matches, others = [], [], []
for app in apps:
lower_name = app.base_data.name.lower()
if word == lower_name:
exact_name_matches.append(app)
elif word in lower_name:
contains_name_matches.append(app)
else:
others.append(app)
res = []
for app_list in (exact_name_matches, contains_name_matches, others):
app_list.sort(key=lambda a: a.base_data.name.lower())
res.extend(app_list)
return res
def _is_enabled(self, man: SoftwareManager):
if self._enabled_map is not None:
enabled = self._enabled_map.get(man.get_managed_types())
if enabled is None:
enabled = man.is_enabled()
self._enabled_map[man.get_managed_types()] = enabled
return enabled
else:
return man.is_enabled()
def _search(self, word: str, man: SoftwareManager, disk_loader, res: SearchResult):
if self._is_enabled(man):
apps_found = man.search(words=word, disk_loader=disk_loader)
res.installed.extend(apps_found.installed)
res.new.extend(apps_found.new)
def search(self, word: str, disk_loader: DiskCacheLoader = None) -> SearchResult:
self._wait_to_be_ready()
res = SearchResult([], [])
norm_word = word.strip().lower()
disk_loader = self.disk_loader_factory.new()
disk_loader.start()
threads = []
for man in self.managers:
t = Thread(target=self._search, args=(norm_word, man, disk_loader, res))
t.start()
threads.append(t)
for t in threads:
t.join()
if disk_loader:
disk_loader.stop = True
disk_loader.join()
res.installed = self._sort(res.installed, norm_word)
res.new = self._sort(res.new, norm_word)
return res
def _wait_to_be_ready(self):
if self.thread_prepare:
self.thread_prepare.join()
self.thread_prepare = None
def read_installed(self, disk_loader: DiskCacheLoader = None) -> List[SoftwarePackage]:
self._wait_to_be_ready()
installed = []
disk_loader = None
for man in self.managers:
if self._is_enabled(man):
if not disk_loader:
disk_loader = self.disk_loader_factory.new()
disk_loader.start()
installed.extend(man.read_installed(disk_loader=disk_loader))
if disk_loader:
disk_loader.stop = True
disk_loader.join()
installed.sort(key=lambda a: a.base_data.name.lower())
return installed
def downgrade_app(self, app: SoftwarePackage, root_password: str, handler: ProcessWatcher) -> bool:
man = self._get_manager_for(app)
if man and app.can_be_downgraded():
return man.downgrade_app(app, root_password, handler)
else:
raise Exception("downgrade is not possible for {}".format(app.__class__.__name__))
def clean_cache_for(self, app: SoftwarePackage):
man = self._get_manager_for(app)
if man:
return man.clean_cache_for(app)
def update(self, app: SoftwarePackage, root_password: str, handler: ProcessWatcher) -> bool:
man = self._get_manager_for(app)
if man:
return man.update(app, root_password, handler)
def uninstall(self, app: SoftwarePackage, root_password: str, handler: ProcessWatcher) -> bool:
man = self._get_manager_for(app)
if man:
return man.uninstall(app, root_password, handler)
def install(self, app: SoftwarePackage, root_password: str, handler: ProcessWatcher) -> bool:
man = self._get_manager_for(app)
if man:
return man.install(app, root_password, handler)
def get_info(self, app: SoftwarePackage):
man = self._get_manager_for(app)
if man:
return man.get_info(app)
def get_history(self, app: SoftwarePackage) -> PackageHistory:
man = self._get_manager_for(app)
if man:
return man.get_history(app)
def get_managed_types(self) -> Set["type"]:
return None
def is_enabled(self):
return True
def _get_manager_for(self, app: SoftwarePackage) -> SoftwareManager:
man = self.map[app.__class__]
return man if man and self._is_enabled(man) else None
def cache_to_disk(self, app: SoftwarePackage, icon_bytes: bytes, only_icon: bool):
if self.disk_loader_factory.disk_cache and app.supports_disk_cache():
man = self._get_manager_for(app)
if man:
return man.cache_to_disk(app, icon_bytes=icon_bytes, only_icon=only_icon)
def requires_root(self, action: str, app: SoftwarePackage):
man = self._get_manager_for(app)
if man:
return man.requires_root(action, app)
def refresh(self, app: SoftwarePackage, root_password: str, watcher: ProcessWatcher) -> bool:
self._wait_to_be_ready()
man = self._get_manager_for(app)
if man:
return man.refresh(app, root_password, watcher)
def _prepare(self):
if self.managers:
for man in self.managers:
if self._is_enabled(man):
man.prepare()
def prepare(self):
self.thread_prepare = Thread(target=self._prepare)
self.thread_prepare.start()
def list_updates(self) -> List[PackageUpdate]:
self._wait_to_be_ready()
updates = []
if self.managers:
for man in self.managers:
if self._is_enabled(man):
man_updates = man.list_updates()
if man_updates:
updates.extend(man_updates)
return updates
def list_warnings(self) -> List[str]:
warnings = []
if self.managers:
for man in self.managers:
man_warnings = man.list_warnings()
if man_warnings:
if warnings is None:
warnings = []
warnings.extend(man_warnings)
else:
warnings.append(self.locale_keys['warning.no_managers'])
return warnings
def _fill_suggestions(self, suggestions: list, man: SoftwareManager, limit: int):
if self._is_enabled(man):
man_sugs = man.list_suggestions(limit)
if man_sugs:
suggestions.extend(man_sugs)
def list_suggestions(self, limit: int) -> List[SoftwarePackage]:
if self.managers:
suggestions, threads = [], []
for man in self.managers:
t = Thread(target=self._fill_suggestions, args=(suggestions, man, SUGGESTIONS_LIMIT))
t.start()
threads.append(t)
for t in threads:
t.join()
return suggestions