Merge pull request #117 from elyscape/support-new-dnf

Support current versions of DNF

tracer/packageManagers/dnf.py

@@ -18,6 +18,7 @@
 
 from __future__ import absolute_import
 
+import os.path
 
 from tracer.resources.system import System
 if System.distribution() in ["fedora", "mageia"]:
@@ -27,8 +28,16 @@
 
 	class Dnf(Rpm):
 
+		def __init__(self, **kwargs):
+			super(Dnf, self).__init__(**kwargs)
+			if os.path.exists('/var/lib/dnf/history.sqlite'):
+				self.opts['modern_swdb'] = True
+
 		@property
-		def history_path(self): return '/var/lib/dnf/history/'
+		def history_path(self):
+			if self.opts.get('modern_swdb'):
+				return '/var/lib/dnf/history.sqlite'
+			return '/var/lib/dnf/history/'
 
 		def package_files(self, pkg_name):
 			if self._is_installed(pkg_name):

tracer/packageManagers/rpm.py

@@ -55,17 +55,29 @@ def packages_newer_than(self, unix_time):
 			if not os.path.exists(self.history_path):
 				return PackagesCollection([])
 
-			sql = """
-				SELECT DISTINCT pkgtups.name, trans_end.timestamp AS end
-
-				FROM trans_beg JOIN trans_end JOIN trans_data_pkgs JOIN pkgtups
-				ON trans_beg.tid=trans_end.tid
-				AND trans_data_pkgs.tid=trans_beg.tid
-				AND trans_data_pkgs.pkgtupid=pkgtups.pkgtupid
-
-				WHERE  trans_beg.timestamp > ?
-				ORDER BY pkgtups.name
-			"""
+			if self.opts.get('modern_swdb'):
+				sql = """
+					SELECT DISTINCT rpm.name, trans.dt_end AS end
+
+					FROM trans JOIN trans_item JOIN rpm
+					ON trans.id=trans_item.trans_id
+					AND trans_item.item_id=rpm.item_id
+
+					WHERE trans.dt_begin > ?
+					ORDER BY rpm.name
+				"""
+			else:
+				sql = """
+					SELECT DISTINCT pkgtups.name, trans_end.timestamp AS end
+
+					FROM trans_beg JOIN trans_end JOIN trans_data_pkgs JOIN pkgtups
+					ON trans_beg.tid=trans_end.tid
+					AND trans_data_pkgs.tid=trans_beg.tid
+					AND trans_data_pkgs.pkgtupid=pkgtups.pkgtupid
+
+					WHERE trans_beg.timestamp > ?
+					ORDER BY pkgtups.name
+				"""
 
 			try:
 				packages = PackagesCollection()
@@ -139,6 +151,8 @@ def _file_provided_by(self, file):
 
 		def _database_file(self):
 			"""Returns path to yum history database file"""
+			if self.opts.get('modern_swdb'):
+				return self.history_path
 			for file in sorted(listdir(self.history_path), reverse=True):
 				if file.startswith("history-") and file.endswith(".sqlite"):
 					return self.history_path + file