Structure the repo layout so it matches final structure better and make isys a real Python package.

Also updates the build and autotools stuff to work with the new structure

1 files changed, 92 insertions, 0 deletions

diff --git a/pyanaconda/baseudev.py b/pyanaconda/baseudev.py
new file mode 100644
index 000000000..3d9ee45bf
--- /dev/null
+++ b/pyanaconda/baseudev.py
@@ -0,0 +1,92 @@
+# udev.py
+# Python module for querying the udev database for device information.
+#
+# Copyright (C) 2009  Red Hat, Inc.
+#
+# This copyrighted material is made available to anyone wishing to use,
+# modify, copy, or redistribute it subject to the terms and conditions of
+# the GNU General Public License v.2, or (at your option) any later version.
+# This program is distributed in the hope that it will be useful, but WITHOUT
+# ANY WARRANTY expressed or implied, including the implied warranties 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., 51 Franklin Street, Fifth Floor, Boston, MA
+# 02110-1301, USA.  Any Red Hat trademarks that are incorporated in the
+# source code or documentation are not subject to the GNU General Public
+# License and may only be used or replicated with the express permission of
+# Red Hat, Inc.
+#
+# Red Hat Author(s): Dave Lehman <dlehman@redhat.com>
+#                    Chris Lumens <clumens@redhat.com>
+#
+
+import iutil
+import os
+
+import pyudev
+global_udev = pyudev.Udev()
+
+import logging
+log = logging.getLogger("storage")
+
+def udev_enumerate_devices(deviceClass="block"):
+    devices = global_udev.enumerate_devices(subsystem=deviceClass)
+    return [path[4:] for path in devices]
+
+def udev_get_device(sysfs_path):
+    if not os.path.exists("/sys%s" % sysfs_path):
+        log.debug("%s does not exist" % sysfs_path)
+        return None
+
+    # XXX we remove the /sys part when enumerating devices,
+    # so we have to prepend it when creating the device
+    dev = global_udev.create_device("/sys" + sysfs_path)
+
+    if dev:
+        dev["name"] = dev.sysname
+        dev["sysfs_path"] = sysfs_path
+
+        # now add in the contents of the uevent file since they're handy
+        dev = udev_parse_uevent_file(dev)
+
+    return dev
+
+def udev_get_devices(deviceClass="block"):
+    udev_settle()
+    entries = []
+    for path in udev_enumerate_devices(deviceClass):
+        entry = udev_get_device(path)
+        if entry:
+            entries.append(entry)
+    return entries
+
+def udev_parse_uevent_file(dev):
+    path = os.path.normpath("/sys/%s/uevent" % dev['sysfs_path'])
+    if not os.access(path, os.R_OK):
+        return dev
+
+    with open(path) as f:
+        for line in f.readlines():
+            (key, equals, value) = line.strip().partition("=")
+            if not equals:
+                continue
+
+            dev[key] = value
+
+    return dev
+
+def udev_settle():
+    # wait maximal 300 seconds for udev to be done running blkid, lvm,
+    # mdadm etc. This large timeout is needed when running on machines with
+    # lots of disks, or with slow disks
+    argv = ["settle", "--timeout=300"]
+
+    iutil.execWithRedirect("udevadm", argv, stderr="/dev/null")
+
+def udev_trigger(subsystem=None, action="add"):
+    argv = ["trigger", "--action=%s" % action]
+    if subsystem:
+        argv.append("--subsystem-match=%s" % subsystem)
+
+    iutil.execWithRedirect("udevadm", argv, stderr="/dev/null")