[aur] initial implementation to determine the best update order

bauh/api/abstract/controller.py

@@ -12,6 +12,7 @@ from bauh.api.abstract.disk import DiskCacheLoader
 from bauh.api.abstract.handler import ProcessWatcher
 from bauh.api.abstract.model import SoftwarePackage, PackageUpdate, PackageHistory, PackageSuggestion, PackageAction
 from bauh.api.abstract.view import FormComponent, ViewComponent
+from build.lib.bauh.api.abstract.controller import SoftwareManager
 
 
 class SearchResult:
@@ -82,6 +83,14 @@ class SoftwareManager(ABC):
         if pkg.supports_disk_cache() and os.path.exists(pkg.get_disk_cache_path()):
             shutil.rmtree(pkg.get_disk_cache_path())
 
+    def sort_update_order(self, pkgs: List[SoftwarePackage]) -> List[SoftwarePackage]:
+        """
+        sorts the best order to perform the update of some packages
+        :param pkgs:
+        :return:
+        """
+        return pkgs
+
     @abstractmethod
     def update(self, pkg: SoftwarePackage, root_password: str, watcher: ProcessWatcher) -> bool:
         """

bauh/gems/arch/controller.py

@@ -993,3 +993,70 @@ class ArchManager(SoftwareManager):
             return True, None
         except:
             return False, [traceback.format_exc()]
+
+    def sort_update_order(self, pkgs: List[ArchPackage]) -> List[ArchPackage]:
+        # TODO pegar o 'provides' dos pacotes ?
+        pkg_deps = {}
+
+        def _add_info(pkg: ArchPackage):
+            try:
+                pkg_deps[pkg] = self.aur_client.get_all_dependencies(pkg.name)
+            except:
+                pkg_deps[pkg] = None
+                self.logger.warning("Could not retrieve dependencies for '{}'".format(pkg.name))
+                traceback.print_exc()
+
+        threads = []
+        for pkg in pkgs:
+            t = Thread(target=_add_info, args=(pkg, ))
+            t.start()
+            threads.append(t)
+
+        for t in threads:
+            t.join()
+
+        return self._sort_deps(pkg_deps)
+
+    @classmethod
+    def _sort_deps(cls, pkg_deps: Dict[ArchPackage, Set[str]]) -> List[ArchPackage]:
+        sorted_names, not_sorted = {}, {}
+        pkg_map = {}
+
+        # first adding all with no deps:
+        for pkg, deps in pkg_deps.items():
+            if not deps:
+                sorted_names[pkg.name] = len(sorted_names)
+            else:
+                not_sorted[pkg.name] = pkg
+
+            pkg_map[pkg.name] = pkg
+
+        # now adding all that depends on another:
+        for name, pkg in not_sorted.items():
+            cls._add_to_sort(pkg, pkg_deps, sorted_names, not_sorted)
+
+        position_map = {'{}-{}'.format(i, n): pkg_map[n] for n, i in sorted_names.items()}
+        return [position_map[idx] for idx in sorted(position_map)]
+
+    @classmethod
+    def _add_to_sort(cls, pkg: ArchPackage, pkg_deps: Dict[ArchPackage, Set[str]],  sorted_names: Dict[str, int], not_sorted: Dict[str, ArchPackage]) -> int:
+        idx = sorted_names.get(pkg.name)
+
+        if idx is not None:
+            return idx
+        else:
+            idx = len(sorted_names)
+            sorted_names[pkg.name] = idx
+
+            for dep in pkg_deps[pkg]:
+                dep_idx = sorted_names.get(dep)
+
+                if dep_idx is not None:
+                    idx = dep_idx + 1
+                elif dep in not_sorted:  # it means the dep is one of the packages to sort, but it not sorted yet
+                    dep_idx = cls._add_to_sort(not_sorted[dep], pkg_deps, sorted_names, not_sorted)
+                    idx = dep_idx + 1
+
+                sorted_names[pkg.name] = idx
+
+            return sorted_names[pkg.name]

bauh/view/core/controller.py

@@ -419,3 +419,28 @@ class GenericSoftwareManager(SoftwareManager):
             self.settings_manager = None
 
         return res
+
+    def sort_update_order(self, pkgs: List[SoftwarePackage]) -> List[SoftwarePackage]:
+        by_manager = {}
+        for pkg in pkgs:
+            man = self._get_manager_for(pkg)
+
+            if man:
+                man_pkgs = by_manager.get(man)
+
+                if man_pkgs is None:
+                    man_pkgs = []
+                    by_manager[man] = man_pkgs
+
+                man_pkgs.append(pkg)
+
+        sorted_list = []
+
+        if by_manager:
+            for man, pkgs in by_manager.items():
+                ti = time.time()
+                sorted_list.extend(man.sort_update_order(pkgs))
+                tf = time.time()
+                self.logger.info(man.__class__.__name__ + " took {0:.2f} seconds".format(tf - ti))
+
+        return sorted_list

bauh/view/qt/thread.py

@@ -103,19 +103,23 @@ class UpdateSelectedApps(AsyncAction):
 
         if self.apps_to_update:
             updated, updated_types = 0, set()
-            for app in self.apps_to_update:
 
-                name = app.model.name if not RE_VERSION_IN_NAME.findall(app.model.name) else app.model.name.split('version')[0].strip()
+            self.change_substatus(self.i18n['action.update.status.sorting'])
+            sorted_pkgs = self.manager.sort_update_order([view.model for view in self.apps_to_update])
 
-                self.change_status('{} {} {}...'.format(self.i18n['manage_window.status.upgrading'], name, app.model.version))
-                success = bool(self.manager.update(app.model, self.root_password, self))
+            for pkg in sorted_pkgs:
+
+                name = pkg.name if not RE_VERSION_IN_NAME.findall(pkg.name) else pkg.name.split('version')[0].strip()
+
+                self.change_status('{} {} {}...'.format(self.i18n['manage_window.status.upgrading'], name, pkg.version))
+                success = bool(self.manager.update(pkg, self.root_password, self))
                 self.change_substatus('')
 
                 if not success:
                     break
                 else:
                     updated += 1
-                    updated_types.add(app.model.__class__)
+                    updated_types.add(pkg.__class__)
                     self.signal_output.emit('\n')
 
             self.notify_finished({'success': success, 'updated': updated, 'types': updated_types})

bauh/view/resources/locale/ca

@@ -265,4 +265,5 @@ locale.it=italià
 interval=interval
 installation=instal·lació
 download=download
-clean=netejar
+clean=netejar
+action.update.status.sorting=Determinant el millor ordre d’actualització

bauh/view/resources/locale/de

@@ -220,4 +220,5 @@ locale.it=italienisch
 interval=intervall
 installation=Installation
 download=download
-clean=reinigen
+clean=reinigen
+action.update.status.sorting=Determining the best update order

bauh/view/resources/locale/en

@@ -227,4 +227,5 @@ locale.it=italian
 interval=interval
 installation=installation
 download=download
-clean=clean
+clean=clean
+action.update.status.sorting=Determining the best update order

bauh/view/resources/locale/es

@@ -268,4 +268,5 @@ locale.it=italiano
 interval=intervalo
 installation=instalación
 download=descarga
-clean=limpiar
+clean=limpiar
+action.update.status.sorting=Determinando el mejor orden de actualización

bauh/view/resources/locale/it

@@ -220,4 +220,5 @@ locale.it=italiano
 interval=intervallo
 installation=installazione
 download=download
-clean=pulire
+clean=pulire
+action.update.status.sorting=Sto determinando il miglior ordine di aggiornamento

bauh/view/resources/locale/pt

@@ -271,4 +271,5 @@ locale.it=italiano
 interval=intervalo
 installation=instalação
 download=download
-clean=limpar
+clean=limpar
+action.update.status.sorting=Determinando a melhor ordem de atualização

tests/gems/arch/controller.py

@@ -0,0 +1,138 @@
+from unittest import TestCase
+
+from bauh.gems.arch.controller import ArchManager
+from bauh.gems.arch.model import ArchPackage
+
+
+class ArchManagerSortUpdateOrderTest(TestCase):
+
+    def test__sort_deps__not_related_packages(self):
+        deps = {
+            ArchPackage(name='google-chrome', package_base='google-chrome'): {'alsa-lib', 'gtk3', 'libcups'},
+            ArchPackage(name='git-cola', package_base='git-cola'): {'git', 'python-pyqt5', 'icu qt5-svg'},
+            ArchPackage(name='kazam', package_base='kazam'): {'python', 'python-cairo'}
+        }
+
+        sorted_list = ArchManager._sort_deps(deps)
+        self.assertIsInstance(sorted_list, list)
+        self.assertEqual(len(deps), len(sorted_list))
+
+        for pkg in sorted_list:
+            self.assertIn(pkg, deps)
+
+    def test__sort_deps__all_packages_no_deps(self):
+        deps = {
+            ArchPackage(name='xpto', package_base='xpto'): set(),
+            ArchPackage(name='abc', package_base='abc'): None
+        }
+
+        sorted_list = ArchManager._sort_deps(deps)
+        self.assertIsInstance(sorted_list, list)
+        self.assertEqual(len(deps), len(sorted_list))
+
+        for pkg in sorted_list:
+            self.assertIn(pkg, deps)
+
+    def test__sort_deps__one_of_three_related(self):
+        deps = {
+            ArchPackage(name='abc', package_base='abc'): {'ghi', 'xpto'},
+            ArchPackage(name='def', package_base='def'): {'jkl'},
+            ArchPackage(name='ghi', package_base='ghi'): {}
+        }
+
+        for _ in range(5):  # testing n times to see if the same result is produced
+            sorted_list = ArchManager._sort_deps(deps)
+            self.assertIsInstance(sorted_list, list)
+            self.assertEqual(len(deps), len(sorted_list))
+
+            for pkg in sorted_list:
+                self.assertIn(pkg, deps)
+
+            ghi = [p for p in sorted_list if p.name == 'ghi']
+            self.assertEqual(1, len(ghi))
+
+            ghi_idx = sorted_list.index(ghi[0])
+
+            abc = [p for p in sorted_list if p.name == 'abc']
+            self.assertEqual(1, len(abc))
+
+            abc_idx = sorted_list.index(abc[0])
+            self.assertGreater(abc_idx, ghi_idx)
+
+    def test__sort_deps__two_of_three_related(self):
+        """
+            dep order = abc -> ghi -> def
+            expected: def, ghi, abc
+        """
+        deps = {
+            ArchPackage(name='abc', package_base='abc'): {'ghi', 'xpto'},
+            ArchPackage(name='def', package_base='def'): {'jkl'},
+            ArchPackage(name='ghi', package_base='ghi'): {'def'}
+        }
+
+        for _ in range(5):  # testing n times to see if the same result is produced
+            sorted_list = ArchManager._sort_deps(deps)
+            self.assertIsInstance(sorted_list, list)
+            self.assertEqual(len(deps), len(sorted_list))
+
+            for pkg in sorted_list:
+                self.assertIn(pkg, deps)
+
+            self.assertEqual(sorted_list[0].name, 'def')
+            self.assertEqual(sorted_list[1].name, 'ghi')
+            self.assertEqual(sorted_list[2].name, 'abc')
+
+    def test__sort_deps__two_relying_on_the_same_package(self):
+        """
+            dep order:
+                abc -> ghi
+                jkl -> ghi
+                ghi -> def
+                def -> mno
+            expected: def, ghi, (abc | jkl )
+        """
+
+        deps = {
+            ArchPackage(name='abc', package_base='abc'): {'ghi', 'xpto'},
+            ArchPackage(name='def', package_base='def'): {'mno'},
+            ArchPackage(name='ghi', package_base='ghi'): {'def'},
+            ArchPackage(name='jkl', package_base='jkl'): {'ghi'}
+        }
+
+        for _ in range(5):  # testing n times to see if the same result is produced
+            sorted_list = ArchManager._sort_deps(deps)
+            self.assertIsInstance(sorted_list, list)
+            self.assertEqual(len(deps), len(sorted_list))
+
+            for pkg in sorted_list:
+                self.assertIn(pkg, deps)
+
+            self.assertEqual(sorted_list[0].name, 'def')
+            self.assertEqual(sorted_list[1].name, 'ghi')
+
+            self.assertNotEqual(sorted_list[2].name,  sorted_list[3].name)
+            self.assertIn(sorted_list[2].name, {'abc', 'jkl'})
+            self.assertIn(sorted_list[3].name, {'abc', 'jkl'})
+
+    def test__sort_deps__with_cycle(self):
+        """
+            dep order:
+                abc -> def -> ghi -> jkl -> abc
+            expected:
+        """
+        deps = {
+            ArchPackage(name='abc', package_base='abc'): {'def'},
+            ArchPackage(name='def', package_base='def'): {'ghi'},
+            ArchPackage(name='ghi', package_base='ghi'): {'jkl'},
+            ArchPackage(name='jkl', package_base='jkl'): {'abc'}
+        }
+
+        sorted_list = ArchManager._sort_deps(deps)
+        self.assertIsInstance(sorted_list, list)
+        self.assertEqual(len(deps), len(sorted_list))
+
+        for pkg in sorted_list:
+            self.assertIn(pkg, deps)
+
+    def test__sort_deps__a_declared_dep_provided_as_a_different_name(self):
+        pass