* apt/history.py:

  - simple abstraction for the apt history file 

2 files changed, 59 insertions, 0 deletions

diff --git a/apt/history.py b/apt/history.py
new file mode 100644
index 00000000..f056e67e
--- /dev/null
+++ b/apt/history.py
@@ -0,0 +1,55 @@
+# histoy.py - apt package abstraction
+#
+#  Copyright (c) 2005-2009 Canonical
+#
+#  Author: Michael Vogt <michael.vogt@ubuntu.com>
+#
+#  This program is free software; you can redistribute it and/or
+#  modify it under the terms of the GNU General Public License as
+#  published by the Free Software Foundation; either version 2 of the
+#  License, or (at your option) any later version.
+#
+#  This program is distributed in the hope that it will be useful,
+#  but WITHOUT ANY WARRANTY; without even the implied warranty of
+#  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+#  GNU General Public License for more details.
+#
+#  You should have received a copy of the GNU General Public License
+#  along with this program; if not, write to the Free Software
+#  Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307
+#  USA
+"""Functionality related to the apt history file."""
+
+import apt_pkg
+apt_pkg.InitConfig()
+
+import gzip
+import string
+
+class Transaction(object):
+    def __init__(self, sec):
+        self.start_date = sec.has_key("Start-Date")
+        for k in ["Install", "Upgrade", "Downgrade" "Remove", "Purge","Error"]:
+            if sec.has_key(k):
+                setattr(self, k.lower(), map(string.strip, sec[k].split(",")))
+            else:
+                setattr(self, k.lower(), None)
+
+               
+class AptHistory(dict):
+    def __init__(self, history_file=None):
+        if not history_file:
+            history_file = apt_pkg.Config.FindFile("Dir::Log::History")
+        # FIXME: test for .gz ending
+        f = open(history_file)
+        self._tagfile = apt_pkg.ParseTagFile(f)
+        while self._tagfile.Step():
+            sec = self._tagfile.Section
+            start_date = sec['Start-Date']
+            self[start_date] = Transaction(sec)
+
+if __name__ == "__main__":
+    #h = AptHistory("/var/log/apt/history.log.1.gz")
+    history = AptHistory()
+    for date in history:
+        print "'%s' - '%s'" % (date, history[date].install)
diff --git a/debian/changelog b/debian/changelog
index 60e1f265..945cfe3e 100644
--- a/debian/changelog
+++ b/debian/changelog
@@ -4,6 +4,10 @@ python-apt (0.7.13.5) UNRELEASED; urgency=low
   * apt/progress/__init__.py:
     - Fix InstallProgress.updateInterface() to cope with read() returning 0
       on non-blocking file descriptors (LP: #491027).
+  
+  [ Michael Vogt ]
+  * apt/history.py:
+    - simple abstraction for the apt history file 
 
   [ Michael Vogt ]
   * data/templates/Ubuntu.info.in: