[PATCH 3/3] Dump the initial and final state of the system's storage devices.

[David Lehman <dlehman@xxxxxxxxxx>]

A timestamp in the keys will allow multiple installs (live media) as
well as arbitrary amounts of back and forth, resetting, whatever.
---
 storage/__init__.py |   13 +++++++++++++
 1 files changed, 13 insertions(+), 0 deletions(-)

diff --git a/storage/__init__.py b/storage/__init__.py
index 52d25b5..d50987d 100644
--- a/storage/__init__.py
+++ b/storage/__init__.py
@@ -53,6 +53,9 @@ import fcoe
 import zfcp
 import dasd
 
+import shelve
+import contextlib
+
 import gettext
 _ = lambda x: gettext.ldgettext("anaconda", x)
 
@@ -258,6 +261,7 @@ class Storage(object):
         self._nextID = 0
         self.defaultFSType = get_default_filesystem_type()
         self.defaultBootFSType = get_default_filesystem_type(boot=True)
+        self._dumpFile = "/tmp/storage.state"
 
         # these will both be empty until our reset method gets called
         self.devicetree = DeviceTree(intf=self.anaconda.intf,
@@ -308,6 +312,8 @@ class Storage(object):
                     dev.disk.setup()
                     dev.disk.format.commitToDisk()
 
+        self.dumpState("final")
+
     @property
     def nextID(self):
         id = self._nextID
@@ -364,6 +370,7 @@ class Storage(object):
         self.fsset = FSSet(self.devicetree, self.anaconda.rootPath)
         self.anaconda.id.rootParts = None
         self.anaconda.id.upgradeRoot = None
+        self.dumpState("initial")
         w.pop()
 
     @property
@@ -1021,6 +1028,12 @@ class Storage(object):
             return True
         return False
 
+    def dumpState(self, suffix):
+        """ Dump the current device list to the storage shelf. """
+        key = "devices.%d.%s" % (time.time(), suffix)
+        with contextlib.closing(shelve.open(self._dumpFile)) as shelf:
+            shelf[key] = [d.dict for d in self.devices]
+
     def write(self, instPath):
         self.fsset.write(instPath)
         self.iscsi.write(instPath, self.anaconda)
-- 
1.6.5.2

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