[PACKAGES] Speeds up the process execution on Debian-based distributions

> Rationale : Archey currently takes an ETERNITY to complete on Debian Jessie.
>             Newer versions can process this entry 5 times faster.

archey/entries/packages.py

@@ -9,7 +9,9 @@ from archey.configuration import Configuration
 
 PACKAGES_TOOLS = (
     {'cmd': ['apk', 'list', '--installed']},
-    {'cmd': ['apt', 'list', '-qq', '--installed']},
+    # As of 2020, `apt` is _very_ slow compared to `dpkg` on Debian-based distributions.
+    # Additional note : `apt`'s CLI is currently not "stable" in Debian terms.
+    #{'cmd': ['apt', 'list', '-qq', '--installed']},
     {'cmd': ['dnf', 'list', 'installed'], 'skew': 1},
     {'cmd': ['dpkg', '--get-selections']},
     {'cmd': ['emerge', '-ep', 'world'], 'skew': 5},

archey/entries/terminal.py

@@ -26,8 +26,8 @@ class Terminal:
         use_unicode = configuration.get('colors_palette')['use_unicode']
         colors = ' '.join([
             '{normal}{character}{bright}{character}{clear}'.format(
-                normal=Colors.escape_code_from_attrs('0;' + str(i)),
-                bright=Colors.escape_code_from_attrs('1;' + str(i)),
+                normal=Colors((0, i)),
+                bright=Colors((1, i)),
                 character=('\u2588' if use_unicode else '#'),
                 clear=Colors.CLEAR
             ) for i in range(37, 30, -1)

archey/test/test_archey_colors.py

@@ -7,6 +7,10 @@ from archey.colors import Colors
 
 class TestColorsUtil(unittest.TestCase):
     """Test cases for the `Colors` (enumeration / utility) class."""
+    def test_constant_values(self):
+        """Test enumeration member instantiation from value"""
+        self.assertEqual(Colors((1, 31)), Colors.RED_BRIGHT)
+        self.assertRaises(ValueError, Colors, (-1,))
 
     def test_string_representation(self):
         """Simple test case for `__str__` implementation"""

archey/test/test_archey_packages.py

@@ -28,28 +28,28 @@ readline-8.0.1-r0 x86_64 {{readline}} (GPL-2.0-or-later) [installed]
         """Simple test for the APK packages manager"""
         self.assertEqual(Packages().value, 8)
 
-    @patch(
-        'archey.entries.packages.check_output',
-        side_effect=[
-            FileNotFoundError(),
-            """\
-accountsservice/stable,now 0.6.45-2 amd64 [installed,automatic]
-acl/stable,now 2.2.53-4 amd64 [installed,automatic]
-adb/stable,now 1:8.1.0+r23-5 amd64 [installed]
-adduser/stable,now 3.118 all [installed]
-adwaita-icon-theme/stable,now 3.30.1-1 all [installed,automatic]
-albatross-gtk-theme/stable,now 1.7.4-1 all [installed,automatic]
-alsa-utils/stable,now 1.1.8-2 amd64 [installed,automatic]
-"""])
-    def test_match_with_apt(self, _):
-        """Simple test for the APT packages manager"""
-        self.assertEqual(Packages().value, 7)
+#     @patch(
+#         'archey.entries.packages.check_output',
+#         side_effect=[
+#             FileNotFoundError(),
+#             """\
+# accountsservice/stable,now 0.6.45-2 amd64 [installed,automatic]
+# acl/stable,now 2.2.53-4 amd64 [installed,automatic]
+# adb/stable,now 1:8.1.0+r23-5 amd64 [installed]
+# adduser/stable,now 3.118 all [installed]
+# adwaita-icon-theme/stable,now 3.30.1-1 all [installed,automatic]
+# albatross-gtk-theme/stable,now 1.7.4-1 all [installed,automatic]
+# alsa-utils/stable,now 1.1.8-2 amd64 [installed,automatic]
+# """])
+#     def test_match_with_apt(self, _):
+#         """Simple test for the APT packages manager"""
+#         self.assertEqual(Packages().value, 7)
 
     @patch(
         'archey.entries.packages.check_output',
         side_effect=[
             FileNotFoundError(),
-            FileNotFoundError(),
+            #FileNotFoundError(),  # `apt` is disabled for now.
             """\
 Installed Packages
 GConf2.x86_64                  3.2.6-17.fc26           @@commandline
@@ -65,7 +65,7 @@ GraphicsMagick.x86_64          1.3.26-3.fc26           @@commandline
         'archey.entries.packages.check_output',
         side_effect=[
             FileNotFoundError(),
-            FileNotFoundError(),
+            #FileNotFoundError(),  # `apt` is disabled for now.
             FileNotFoundError(),
             """\
 accountsservice         install
@@ -84,7 +84,7 @@ alien                   install
         'archey.entries.packages.check_output',
         side_effect=[
             FileNotFoundError(),
-            FileNotFoundError(),
+            #FileNotFoundError(),  # `apt` is disabled for now.
             FileNotFoundError(),
             FileNotFoundError(),
             """\
@@ -108,7 +108,7 @@ USE="pam -static-libs" ABI_X86="(64) -32 (-x32)" \n\
         'archey.entries.packages.check_output',
         side_effect=[
             FileNotFoundError(),
-            FileNotFoundError(),
+            #FileNotFoundError(),  # `apt` is disabled for now.
             FileNotFoundError(),
             FileNotFoundError(),
             FileNotFoundError(),
@@ -126,7 +126,7 @@ argon2 20171227-3
         'archey.entries.packages.check_output',
         side_effect=[
             FileNotFoundError(),
-            FileNotFoundError(),
+            #FileNotFoundError(),  # `apt` is disabled for now.
             FileNotFoundError(),
             FileNotFoundError(),
             FileNotFoundError(),
@@ -145,7 +145,7 @@ MySQL-client-3.23.57-1
         'archey.entries.packages.check_output',
         side_effect=[
             FileNotFoundError(),
-            FileNotFoundError(),
+            #FileNotFoundError(),  # `apt` is disabled for now.
             FileNotFoundError(),
             FileNotFoundError(),
             FileNotFoundError(),
@@ -167,7 +167,7 @@ ModemManager-glib.x86_64        1.6.0-2.el7         @base            \n\
         'archey.entries.packages.check_output',
         side_effect=[
             FileNotFoundError(),
-            FileNotFoundError(),
+            #FileNotFoundError(),  # `apt` is disabled for now.
             FileNotFoundError(),
             FileNotFoundError(),
             FileNotFoundError(),
@@ -194,7 +194,7 @@ i  | at            | A Job Manager                       | package    \n\
         'archey.entries.packages.check_output',
         side_effect=[  # No packages manager will be found
             FileNotFoundError(),
-            FileNotFoundError(),
+            #FileNotFoundError(),  # `apt` is disabled for now.
             FileNotFoundError(),
             FileNotFoundError(),
             FileNotFoundError(),