Flatpak not required

fpakman/app.py

@@ -12,7 +12,6 @@ from fpakman.util import util
 from fpakman.core.controller import FlatpakManager, GenericApplicationManager
 from fpakman.util.cache import Cache
 from fpakman.util.memory import CacheCleaner
-from fpakman.view.qt import common
 from fpakman.view.qt.systray import TrayIcon
 
 app_name = 'fpakman'
@@ -54,8 +53,6 @@ if args.update_notification == 0:
 
 locale_keys = util.get_locale_keys(args.locale)
 
-common.check_flatpak_installed(locale_keys)
-
 caches = []
 flatpak_api_cache = Cache(expiration_time=args.cache_exp)
 caches.append(flatpak_api_cache)

fpakman/core/controller.py

@@ -57,6 +57,10 @@ class ApplicationManager(ABC):
     def install_and_stream(self, app: Application):
         pass
 
+    @abstractmethod
+    def is_enabled(self) -> bool:
+        pass
+
 
 class FlatpakManager(ApplicationManager):
 
@@ -190,6 +194,9 @@ class FlatpakManager(ApplicationManager):
     def install_and_stream(self, app: FlatpakApplication):
         return flatpak.install_and_stream(app.base_data.id, app.origin)
 
+    def is_enabled(self):
+        return flatpak.is_installed()
+
 
 class GenericApplicationManager(ApplicationManager):
 
@@ -200,14 +207,16 @@ class GenericApplicationManager(ApplicationManager):
     def search(self, word: str) -> List[Application]:
         apps = []
         for man in self.managers:
-            apps.extend(man.search(word))
+            if man.is_enabled():
+                apps.extend(man.search(word))
 
         return apps
 
     def read_installed(self) -> List[Application]:
         installed = []
         for man in self.managers:
-            installed.extend(man.read_installed())
+            if man.is_enabled():
+                installed.extend(man.read_installed())
 
         return installed
 
@@ -215,30 +224,55 @@ class GenericApplicationManager(ApplicationManager):
         return True
 
     def downgrade_app(self, app: Application, root_password: str):
-        manager = self.map.get(app.__class__)
+        man = self._get_manager_for(app)
 
-        if manager.can_downgrade():
-            return manager.downgrade_app(app, root_password)
+        if man and man.can_downgrade():
+            return man.downgrade_app(app, root_password)
         else:
             raise Exception("downgrade is not possible for {}".format(app.__class__.__name__))
 
     def clean_cache_for(self, app: Application):
-        self.map[app.__class__].clean_cache_for(app)
+        man = self._get_manager_for(app)
+
+        if man:
+            return man.clean_cache_for(app)
 
     def update_and_stream(self, app: Application):
-        return self.map[app.__class__].update_and_stream(app)
+        man = self._get_manager_for(app)
+
+        if man:
+            return man.update_and_stream(app)
 
     def uninstall_and_stream(self, app: Application):
-        return self.map[app.__class__].uninstall_and_stream(app)
+        man = self._get_manager_for(app)
+
+        if man:
+            return man.uninstall_and_stream(app)
 
     def install_and_stream(self, app: Application):
-        return self.map[app.__class__].install_and_stream(app)
+        man = self._get_manager_for(app)
+
+        if man:
+            return man.install_and_stream(app)
 
     def get_info(self, app: Application):
-        return self.map[app.__class__].get_info(app)
+        man = self._get_manager_for(app)
+
+        if man:
+            return man.get_info(app)
 
     def get_history(self, app: Application):
-        return self.map[app.__class__].get_history(app)
+        man = self._get_manager_for(app)
+
+        if man:
+            return man.get_history(app)
 
     def get_app_type(self):
         return None
+
+    def is_enabled(self):
+        return True
+
+    def _get_manager_for(self, app: Application):
+        man = self.map[app.__class__]
+        return man if man and man.is_enabled() else None

fpakman/core/flatpak.py

@@ -73,7 +73,7 @@ def is_installed():
 
 
 def get_version():
-    res = system.run_cmd('{} --version'.format(BASE_CMD))
+    res = system.run_cmd('{} --version'.format(BASE_CMD), print_error=False)
     return res.split(' ')[1].strip() if res else None
 
 

fpakman/core/system.py

@@ -5,8 +5,17 @@ from typing import List
 from fpakman.core import resource
 
 
-def run_cmd(cmd: str, expected_code: int = 0, ignore_return_code: bool = False) -> str:
-    res = subprocess.run(cmd, shell=True, stdout=subprocess.PIPE, env={'LANG': 'en'})
+def run_cmd(cmd: str, expected_code: int = 0, ignore_return_code: bool = False, print_error: bool = True) -> str:
+    args = {
+        "shell": True,
+        "stdout": subprocess.PIPE,
+        "env": {'LANG': 'en'}
+    }
+
+    if not print_error:
+        args["stderr"] = subprocess.DEVNULL
+
+    res = subprocess.run(cmd, **args)
     return res.stdout.decode() if ignore_return_code or res.returncode == expected_code else None
 
 

fpakman/resources/locale/en

@@ -25,8 +25,6 @@ manage_window.status.installing=Installing
 manage_window.bt.refresh.tooltip=Reload the data about installed applications
 manage_window.bt.upgrade.tooltip=Upgrade all selected applications
 manage_window.checkbox.show_details=Show details
-popup.flatpak_not_installed.title=Error
-popup.flatpak_not_installed.msg=flatpak seems not to be installed. Exiting
 popup.root.title=Requires root privileges
 popup.root.password=Password
 popup.root.bad_password.title=Error

fpakman/resources/locale/es

@@ -26,8 +26,6 @@ manage_window.status.installing=Instalando
 manage_window.bt.refresh.tooltip=Recarga los datos sobre los aplicativos instalados
 manage_window.bt.upgrade.tooltip=Actualiza todos los aplicativos seleccionados
 manage_window.checkbox.show_details=Mostrar detalles
-popup.flatpak_not_installed.title=Error
-popup.flatpak_not_installed.msg=flatpak no parece estar instalado. Saliendo
 popup.root.title=Requiere privilegios de root
 popup.root.password=Contraseña
 popup.root.bad_password.title=Error

fpakman/resources/locale/pt

@@ -26,8 +26,6 @@ manage_window.status.installing=Instalando
 manage_window.bt.refresh.tooltip=Recarrega os dados sobre os aplicativos instalados
 manage_window.bt.upgrade.tooltip=Atualiza todos os aplicativos selecionados
 manage_window.checkbox.show_details=Mostrar detalhes
-popup.flatpak_not_installed.title=Erro
-popup.flatpak_not_installed.msg=flatpak não parece estar instalado. Saindo
 popup.root.title=Requer privilégios de root
 popup.root.password=Senha
 popup.root.bad_password.title=Erro

fpakman/view/qt/common.py

@@ -1,10 +0,0 @@
-from fpakman.core import flatpak
-from fpakman.view.qt import dialog
-
-
-def check_flatpak_installed(locale_keys: dict):
-
-    if not flatpak.is_installed():
-        dialog.show_error(title=locale_keys['popup.flatpak_not_installed.title'],
-                          body=locale_keys['popup.flatpak_not_installed.msg'] + '...')
-        exit(1)

fpakman/view/qt/window.py

@@ -12,7 +12,6 @@ from fpakman.core import resource
 from fpakman.core.controller import ApplicationManager
 from fpakman.core.model import Application
 from fpakman.util.cache import Cache
-from fpakman.view.qt import common
 from fpakman.view.qt.apps_table import AppsTable
 from fpakman.view.qt.history import HistoryDialog
 from fpakman.view.qt.info import InfoDialog
@@ -39,7 +38,6 @@ class ManageWindow(QWidget):
         self.icon_cache = icon_cache
 
         self.icon_flathub = QIcon(resource.get_path('img/logo.svg'))
-        self._check_flatpak_installed()
         self.resize(ManageWindow.__BASE_HEIGHT__, ManageWindow.__BASE_HEIGHT__)
         self.setWindowTitle(locale_keys['manage_window.title'])
         self.setWindowIcon(self.icon_flathub)
@@ -200,9 +198,6 @@ class ManageWindow(QWidget):
             self.hide()
             self._handle_console_option(False)
 
-    def _check_flatpak_installed(self):
-        common.check_flatpak_installed(self.locale_keys)
-
     def _acquire_lock(self):
 
         self.thread_lock.acquire()
@@ -241,20 +236,16 @@ class ManageWindow(QWidget):
     def refresh(self):
 
         if self._acquire_lock():
-            self._check_flatpak_installed()
             self._begin_action(self.locale_keys['manage_window.status.refreshing'])
 
             self.thread_refresh.start()
 
     def _finish_refresh(self, apps: List[Application]):
-
         self.update_apps(apps)
         self.finish_action()
         self._release_lock()
 
     def uninstall_app(self, app: ApplicationView):
-        self._check_flatpak_installed()
-
         if self._acquire_lock():
             self._handle_console_option(True)
             self._begin_action(self.locale_keys['manage_window.status.uninstalling'])
@@ -326,8 +317,6 @@ class ManageWindow(QWidget):
         self.move(geo.topLeft())
 
     def update_apps(self, apps: List[Application]):
-        self._check_flatpak_installed()
-
         self.apps = []
 
         napps = 0  # number of apps (not libraries)
@@ -408,9 +397,6 @@ class ManageWindow(QWidget):
         self.label_status.setText('')
 
     def downgrade_app(self, app: dict):
-
-        self._check_flatpak_installed()
-
         if self._acquire_lock():
 
             pwd = None
@@ -471,15 +457,11 @@ class ManageWindow(QWidget):
             self.thread_search.start()
 
     def _finish_search(self, apps_found: List[Application]):
-
         self._release_lock()
         self.finish_action()
         self.update_apps(apps_found)
 
     def install_app(self, app: dict):
-
-        self._check_flatpak_installed()
-
         if self._acquire_lock():
             self._handle_console_option(True)
             self._begin_action(self.locale_keys['manage_window.status.installing'])