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[PATCH 1/2] Add new ImportInstaller class

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This patch adds a new ImportInstaller class, as well as test suite
changes to exercise the new code.

Thanks,
Cole

# HG changeset patch
# User Cole Robinson <crobinso@xxxxxxxxxx>
# Date 1235006163 18000
# Node ID 38db2ccaff913afb4c4ef823e58f2ce7d609b73f
# Parent  ef6c4d5ed38687ef5d42eb2a5d1c66edd8c7077a
Add ImportInstaller class.

Used for creating guest xml around an existing disk image. Just uses the
first Guest disk device as the assumed boot device.

diff -r ef6c4d5ed386 -r 38db2ccaff91 tests/pylint-virtinst.sh
--- a/tests/pylint-virtinst.sh	Wed Feb 18 19:52:11 2009 -0500
+++ b/tests/pylint-virtinst.sh	Wed Feb 18 20:16:03 2009 -0500
@@ -46,7 +46,7 @@
 PROT_MEM_BUGS="protected member (_lookup_osdict_key|_OS_TYPES|_prepare_install|_create_devices|_install_disks)"
 
 # Scattered examples of legitimately unused arguments
-UNUSED_ARGS="(SuseDistro|SolarisDistro).isValidStore.*Unused argument 'progresscb'|LiveCDInstaller.prepare.*Unused argument|ImageInstaller.prepare.*Unused argument|post_install_check.*Unused argument 'guest'|Guest.__init__.*Unused argument 'type'"
+UNUSED_ARGS="(SuseDistro|SolarisDistro).isValidStore.*Unused argument 'progresscb'|.*Installer.prepare.*Unused argument|post_install_check.*Unused argument 'guest'|Guest.__init__.*Unused argument 'type'"
 
 # Outside __init__ checks throw false positives with distutils custom commands
 # tests.storage also invokes false positives using hasattr
diff -r ef6c4d5ed386 -r 38db2ccaff91 tests/xmlconfig-xml/install-fullyvirt-import.xml
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/tests/xmlconfig-xml/install-fullyvirt-import.xml	Wed Feb 18 20:16:03 2009 -0500
@@ -0,0 +1,29 @@
+<domain type='xen'>
+  <name>TestGuest</name>
+  <currentMemory>204800</currentMemory>
+  <memory>409600</memory>
+  <uuid>12345678-1234-1234-1234-123456789012</uuid>
+  <os>
+    <type arch='i686'>hvm</type>
+    <loader>/usr/lib/xen/boot/hvmloader</loader>
+    <boot dev='hd'/>
+  </os>
+  <features>
+    <acpi/><apic/>
+  </features>
+  <clock offset="utc"/>
+  <on_poweroff>destroy</on_poweroff>
+  <on_reboot>restart</on_reboot>
+  <on_crash>restart</on_crash>
+  <vcpu>5</vcpu>
+  <devices>
+    <emulator>/usr/lib/xen/bin/qemu-dm</emulator>
+    <console type='pty'/>
+    <disk type='file' device='disk'>
+      <source file='/tmp/test.img'/>
+      <target dev='hda' bus='ide'/>
+    </disk>
+    <input type='mouse' bus='ps2'/>
+    <graphics type='sdl' display=':3.4' xauth='/testdir/.Xauthority'/>
+  </devices>
+</domain>
diff -r ef6c4d5ed386 -r 38db2ccaff91 tests/xmlconfig-xml/install-paravirt-import.xml
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/tests/xmlconfig-xml/install-paravirt-import.xml	Wed Feb 18 20:16:03 2009 -0500
@@ -0,0 +1,19 @@
+<domain type='xen'>
+  <name>TestGuest</name>
+  <currentMemory>204800</currentMemory>
+  <memory>409600</memory>
+  <uuid>12345678-1234-1234-1234-123456789012</uuid>
+  <bootloader>/usr/bin/pygrub</bootloader>
+  <on_poweroff>destroy</on_poweroff>
+  <on_reboot>restart</on_reboot>
+  <on_crash>restart</on_crash>
+  <vcpu>5</vcpu>
+  <devices>
+    <disk type='file' device='disk'>
+      <source file='/tmp/test.img'/>
+      <target dev='xvda' bus='xen'/>
+    </disk>
+    <input type='mouse' bus='xen'/>
+    <graphics type='vnc' port='-1' keymap='ja'/>
+  </devices>
+</domain>
diff -r ef6c4d5ed386 -r 38db2ccaff91 tests/xmlconfig.py
--- a/tests/xmlconfig.py	Wed Feb 18 19:52:11 2009 -0500
+++ b/tests/xmlconfig.py	Wed Feb 18 20:16:03 2009 -0500
@@ -70,6 +70,8 @@
             # Should probably break this out into a separate function
             dom = xenguest.conn.defineXML(actualXML)
             dom.create()
+            dom.destroy()
+            dom.undefine()
         finally:
             xenguest.installer.cleanup()
 
@@ -230,6 +232,20 @@
                                                location="/dev/loop0")
         self._compare(g, "install-fullyvirt-livecd", False)
 
+    def testInstallFVImport(self):
+        g = get_basic_fullyvirt_guest()
+        g.disks.append(get_filedisk())
+        g.installer = virtinst.ImportInstaller(type="xen", os_type="hvm",
+                                               conn=g.conn)
+        self._compare(g, "install-fullyvirt-import", False)
+
+    def testInstallPVImport(self):
+        g = get_basic_paravirt_guest()
+        g.disks.append(get_filedisk())
+        g.installer = virtinst.ImportInstaller(type="xen", os_type="xen",
+                                               conn=g.conn)
+        self._compare(g, "install-paravirt-import", False)
+
     def testXMLEscaping(self):
         g = get_basic_fullyvirt_guest()
         g.disks.append(get_filedisk("/tmp/ISO&'&s"))
diff -r ef6c4d5ed386 -r 38db2ccaff91 virtinst/ImportInstaller.py
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/virtinst/ImportInstaller.py	Wed Feb 18 20:16:03 2009 -0500
@@ -0,0 +1,63 @@
+#
+# Copyright 2009 Red Hat, Inc.
+# Cole Robinson <crobinso@xxxxxxxxxx>
+#
+# 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., 51 Franklin Street, Fifth Floor, Boston,
+# MA 02110-1301 USA.
+
+import Installer
+from VirtualDisk import VirtualDisk
+
+class ImportInstaller(Installer.Installer):
+    """
+    Create a Guest around an existing disk device, and perform no 'install'
+    stage.
+
+    ImportInstaller sets the Guest's boot device to that of the first disk
+    attached to the Guest (so, one of 'hd', 'cdrom', or 'floppy'). All the
+    user has to do is fill in the Guest object with the desired parameters.
+    """
+
+    # General Installer methods
+
+    def prepare(self, guest, meter, distro = None):
+        if len(guest.disks) == 0:
+            raise ValueError(_("A disk device must be specified."))
+
+    def get_install_xml(self, guest, isinstall):
+        if isinstall:
+            # Signifies to the 'Guest' that there is no 'install' phase
+            return None
+        else:
+            bootdev = self._disk_to_bootdev(guest.disks[0])
+
+        return self._get_osblob_helper(isinstall=isinstall, guest=guest,
+                                       kernel=None, bootdev=bootdev)
+
+    def post_install_check(self, guest):
+        return True
+
+
+    # Private methods
+
+    def _disk_to_bootdev(self, disk):
+        if disk.device == VirtualDisk.DEVICE_DISK:
+            return "hd"
+        elif disk.device == VirtualDisk.DEVICE_CDROM:
+            return "cdrom"
+        elif disk.device == VirtualDisk.DEVICE_FLOPPY:
+            return "floppy"
+        else:
+            return "hd"
diff -r ef6c4d5ed386 -r 38db2ccaff91 virtinst/ParaVirtGuest.py
--- a/virtinst/ParaVirtGuest.py	Wed Feb 18 19:52:11 2009 -0500
+++ b/virtinst/ParaVirtGuest.py	Wed Feb 18 20:16:03 2009 -0500
@@ -21,7 +21,6 @@
 
 from Guest import Guest
 from DistroInstaller import DistroInstaller
-from virtinst import _virtinst as _
 
 class ParaVirtGuest(Guest):
     def __init__(self, type=None, connection=None, hypervisorURI=None,
@@ -35,11 +34,6 @@
     def _get_input_device(self):
         return ("mouse", "xen")
 
-    def validate_parms(self):
-        if not self.location and not self.boot:
-            raise ValueError, _("A location must be specified to install from")
-        Guest.validate_parms(self)
-
     def _get_disk_xml(self, install = True):
         """Get the disk config in the libvirt XML format"""
         ret = ""
diff -r ef6c4d5ed386 -r 38db2ccaff91 virtinst/__init__.py
--- a/virtinst/__init__.py	Wed Feb 18 19:52:11 2009 -0500
+++ b/virtinst/__init__.py	Wed Feb 18 20:16:03 2009 -0500
@@ -37,6 +37,7 @@
 from DistroInstaller import DistroInstaller
 from PXEInstaller import PXEInstaller
 from LiveCDInstaller import LiveCDInstaller
+from ImportInstaller import ImportInstaller
 from ImageManager import ImageInstaller
 from CloneManager import CloneDesign
 from User import User
@@ -47,4 +48,5 @@
            "XenNetworkInterface", "VirtualGraphics", "VirtualAudio",
            "VirtualDisk", "XenDisk", "FullVirtGuest", "ParaVirtGuest",
            "DistroInstaller", "PXEInstaller", "LiveCDInstaller",
-           "ImageInstaller", "CloneDesign", "Storage", "User", "util"]
+           "ImportInstaller", "ImageInstaller", "CloneDesign", "Storage",
+           "User", "util"]
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