From 4593ace7ab121f025c71bb0b1bb2a21694896354 Mon Sep 17 00:00:00 2001
From: karasu <karasu@antergos.com>
Date: Sat, 28 Apr 2018 14:45:08 +0200
Subject: [PATCH] Do not crash when searching for missing groups in Antergos
 repository database

---
 src/download/metalink.py |  4 +---
 src/pacman/pac.py        | 15 ++++++++++++---
 2 files changed, 13 insertions(+), 6 deletions(-)

diff --git a/src/download/metalink.py b/src/download/metalink.py
index 8adcda0c9..d71a48168 100644
--- a/src/download/metalink.py
+++ b/src/download/metalink.py
@@ -330,10 +330,8 @@ def build_download_queue(alpm, args=None):
 
     antdb = [db for db in handle.get_syncdbs() if 'antergos' == db.name]
     antdb = antdb[0]
+
     one_repo_groups_names = ['cinnamon', 'mate', 'mate-extra']
-    
-    #one_repo_groups = [antdb.read_grp(one_repo_group)
-    #                   for one_repo_group in one_repo_groups_names]
     one_repo_groups = []
     for one_repo_group_name in one_repo_groups_names:
         grp = antdb.read_grp(one_repo_group_name)
diff --git a/src/pacman/pac.py b/src/pacman/pac.py
index 2fd025773..570368ecb 100644
--- a/src/pacman/pac.py
+++ b/src/pacman/pac.py
@@ -266,13 +266,22 @@ def install(self, pkgs, conflicts=None, options=None):
         # have to ensure we don't clobber the priority of the repos.
         repos = OrderedDict()
         repo_order = []
-        one_repo_groups = ['cinnamon', 'mate', 'mate-extra']
         db_match = [db for db in self.handle.get_syncdbs()
                     if 'antergos' == db.name]
         antdb = OrderedDict()
         antdb['antergos'] = db_match[0]
-        one_repo_groups = [antdb['antergos'].read_grp(one_repo_group)
-                           for one_repo_group in one_repo_groups]
+
+        one_repo_groups_names = ['cinnamon', 'mate', 'mate-extra']
+        one_repo_groups = []
+        for one_repo_group_name in one_repo_groups_names:
+            grp = antdb['antergos'].read_grp(one_repo_group_name)
+            if not grp:
+                grp = ['None', []]
+                logging.warning(
+                    "Error reading group '%s' from the antergos repo db",
+                    one_repo_group_name)
+            one_repo_groups.append(grp)
+
         one_repo_pkgs = {pkg for one_repo_group in one_repo_groups
                          for pkg in one_repo_group[1] if one_repo_group}