[arch] feature -> AUR: rebuild-detector integration

bauh/gems/arch/rebuild_detector.py

@@ -0,0 +1,24 @@
+from typing import Set
+
+from bauh.commons import system
+
+
+def is_installed() -> bool:
+    return system.execute(cmd='which checkrebuild', output=False)[0] == 0
+
+
+def list_required_rebuild() -> Set[str]:
+    code, output = system.execute(cmd='checkrebuild')
+
+    required = set()
+    if code == 0 and output:
+        for line in output.split('\n'):
+            line_strip = line.strip()
+
+            if line_strip:
+                line_split = line_strip.split('\t')
+
+                if len(line_split) > 1:
+                    required.add(line_split[1])
+
+    return required