virt-install: Fix --location iso again, and test it (bz 1071513)

tests/__init__.py

@@ -21,6 +21,8 @@ import logging
 import os
 
 os.environ["VIRTINST_TEST_SUITE"] = "1"
+os.environ["VIRTINST_TEST_URL_DIR"] = os.path.abspath(
+    "tests/cli-test-xml/fakefedoratree/")
 
 import virtinst
 virtinst.stable_defaults = False

tests/cli-test-xml/compare/virt-install-location-iso.xml

@@ -0,0 +1,129 @@
+<domain type="kvm">
+  <name>foobar</name>
+  <uuid>00000000-1111-2222-3333-444444444444</uuid>
+  <memory>65536</memory>
+  <currentMemory>65536</currentMemory>
+  <vcpu>1</vcpu>
+  <os>
+    <type arch="x86_64">hvm</type>
+    <kernel>./virtinst-vmlinuz.</kernel>
+    <initrd>./virtinst-initrd.img.</initrd>
+  </os>
+  <features>
+    <acpi/>
+    <apic/>
+    <pae/>
+  </features>
+  <cpu mode="custom" match="exact">
+    <model>core2duo</model>
+  </cpu>
+  <clock offset="utc">
+    <timer name="rtc" tickpolicy="catchup"/>
+    <timer name="pit" tickpolicy="delay"/>
+    <timer name="hpet" present="no"/>
+  </clock>
+  <on_poweroff>destroy</on_poweroff>
+  <on_reboot>destroy</on_reboot>
+  <on_crash>destroy</on_crash>
+  <devices>
+    <emulator>/usr/bin/qemu-kvm</emulator>
+    <disk type="file" device="cdrom">
+      <driver name="qemu"/>
+      <source file="/home/crobinso/src/virt-manager/tests/cli-test-xml/fake.iso"/>
+      <target dev="hda" bus="ide"/>
+      <readonly/>
+    </disk>
+    <controller type="usb" index="0" model="ich9-ehci1"/>
+    <controller type="usb" index="0" model="ich9-uhci1">
+      <master startport="0"/>
+    </controller>
+    <controller type="usb" index="0" model="ich9-uhci2">
+      <master startport="2"/>
+    </controller>
+    <controller type="usb" index="0" model="ich9-uhci3">
+      <master startport="4"/>
+    </controller>
+    <interface type="bridge">
+      <source bridge="eth0"/>
+      <mac address="00:11:22:33:44:55"/>
+      <model type="virtio"/>
+    </interface>
+    <input type="tablet" bus="usb"/>
+    <graphics type="spice" port="-1" tlsPort="-1" autoport="yes"/>
+    <console type="pty"/>
+    <channel type="spicevmc">
+      <target type="virtio" name="com.redhat.spice.0"/>
+    </channel>
+    <sound model="ich6"/>
+    <video>
+      <model type="qxl"/>
+    </video>
+    <redirdev bus="usb" type="spicevmc"/>
+    <redirdev bus="usb" type="spicevmc"/>
+    <redirdev bus="usb" type="spicevmc"/>
+    <redirdev bus="usb" type="spicevmc"/>
+  </devices>
+</domain>
+<domain type="kvm">
+  <name>foobar</name>
+  <uuid>00000000-1111-2222-3333-444444444444</uuid>
+  <memory>65536</memory>
+  <currentMemory>65536</currentMemory>
+  <vcpu>1</vcpu>
+  <os>
+    <type arch="x86_64">hvm</type>
+    <boot dev="hd"/>
+  </os>
+  <features>
+    <acpi/>
+    <apic/>
+    <pae/>
+  </features>
+  <cpu mode="custom" match="exact">
+    <model>core2duo</model>
+  </cpu>
+  <clock offset="utc">
+    <timer name="rtc" tickpolicy="catchup"/>
+    <timer name="pit" tickpolicy="delay"/>
+    <timer name="hpet" present="no"/>
+  </clock>
+  <on_poweroff>destroy</on_poweroff>
+  <on_reboot>restart</on_reboot>
+  <on_crash>restart</on_crash>
+  <devices>
+    <emulator>/usr/bin/qemu-kvm</emulator>
+    <disk type="block" device="cdrom">
+      <target dev="hda" bus="ide"/>
+      <readonly/>
+    </disk>
+    <controller type="usb" index="0" model="ich9-ehci1"/>
+    <controller type="usb" index="0" model="ich9-uhci1">
+      <master startport="0"/>
+    </controller>
+    <controller type="usb" index="0" model="ich9-uhci2">
+      <master startport="2"/>
+    </controller>
+    <controller type="usb" index="0" model="ich9-uhci3">
+      <master startport="4"/>
+    </controller>
+    <interface type="bridge">
+      <source bridge="eth0"/>
+      <mac address="00:11:22:33:44:55"/>
+      <model type="virtio"/>
+    </interface>
+    <input type="tablet" bus="usb"/>
+    <graphics type="spice" port="-1" tlsPort="-1" autoport="yes"/>
+    <console type="pty"/>
+    <channel type="spicevmc">
+      <target type="virtio" name="com.redhat.spice.0"/>
+    </channel>
+    <sound model="ich6"/>
+    <video>
+      <model type="qxl"/>
+    </video>
+    <redirdev bus="usb" type="spicevmc"/>
+    <redirdev bus="usb" type="spicevmc"/>
+    <redirdev bus="usb" type="spicevmc"/>
+    <redirdev bus="usb" type="spicevmc"/>
+  </devices>
+</domain>

tests/clitest.py

@@ -530,6 +530,7 @@ c.add_compare("--os-variant fedora20 --nodisks --boot fd --graphics sdl --arch s
 c.add_compare("--arch armv7l --machine vexpress-a9 --boot kernel=/f19-arm.kernel,initrd=/f19-arm.initrd,dtb=/f19-arm.dtb,extra_args=\"console=ttyAMA0 rw root=/dev/mmcblk0p3\" --disk %(EXISTIMG1)s --nographics", "arm-vexpress-plain", skip_check=support.SUPPORT_CONN_DISK_SD)
 c.add_compare("--arch armv7l --machine vexpress-a15 --boot kernel=/f19-arm.kernel,initrd=/f19-arm.initrd,dtb=/f19-arm.dtb,kernel_args=\"console=ttyAMA0 rw root=/dev/vda3\",extra_args=foo --disk %(EXISTIMG1)s --nographics --os-variant fedora19", "arm-vexpress-f19", skip_check=support.SUPPORT_CONN_VIRTIO_MMIO)
 c.add_compare("--arch ppc64 --machine pseries --boot network --disk %(EXISTIMG1)s --os-variant fedora20", "ppc64-pseries-f20")
+c.add_compare("--nodisks --location tests/cli-test-xml/fake.iso", "location-iso")  # Using --location iso mounting
 c.add_valid("--cdrom %(EXISTIMG2)s --file %(EXISTIMG1)s --os-variant win2k3 --wait 0 --sound")  # HVM windows install with disk
 c.add_valid("--os-variant fedora20 --file %(EXISTIMG1)s --location %(TREEDIR)s --extra-args console=ttyS0 --sound")  # F14 Directory tree URL install with extra-args
 c.add_invalid("--nodisks --boot network --machine foobar")  # Unknown machine type

virtinst/distroinstaller.py

@@ -299,11 +299,12 @@ def _upload_media(conn, scratchdir, system_scratchdir,
 
 
 # Enum of the various install media types we can have
-(MEDIA_LOCATION_PATH,
+(MEDIA_LOCATION_DIR,
+ MEDIA_LOCATION_CDROM,
  MEDIA_LOCATION_URL,
  MEDIA_CDROM_PATH,
  MEDIA_CDROM_URL,
- MEDIA_CDROM_IMPLIED) = range(1, 6)
+ MEDIA_CDROM_IMPLIED) = range(1, 7)
 
 
 class DistroInstaller(Installer):
@@ -324,7 +325,11 @@ class DistroInstaller(Installer):
 
         if self.location and _is_url(self.conn, self.location):
             return self.cdrom and MEDIA_CDROM_URL or MEDIA_LOCATION_URL
-        return self.cdrom and MEDIA_CDROM_PATH or MEDIA_LOCATION_PATH
+        if self.cdrom:
+            return MEDIA_CDROM_PATH
+        if self.location and os.path.isdir(self.location):
+            return MEDIA_LOCATION_DIR
+        return MEDIA_LOCATION_CDROM
 
     def _prepare_local(self):
         transient = True
@@ -374,7 +379,7 @@ class DistroInstaller(Installer):
     def _get_bootdev(self, isinstall, guest):
         mediatype = self._get_media_type()
         local = mediatype in [MEDIA_CDROM_PATH, MEDIA_CDROM_IMPLIED,
-                              MEDIA_LOCATION_PATH]
+                              MEDIA_LOCATION_DIR, MEDIA_LOCATION_CDROM]
         persistent_cd = (local and
                          self.cdrom and
                          self.livecd)
@@ -420,9 +425,10 @@ class DistroInstaller(Installer):
             return
 
         dev = None
-        if mediatype == MEDIA_CDROM_PATH:
+        if mediatype == MEDIA_CDROM_PATH or mediatype == MEDIA_LOCATION_CDROM:
             dev = self._prepare_local()
-        else:
+
+        if mediatype != MEDIA_CDROM_PATH:
             fetcher = urlfetcher.fetcherForURI(self.location,
                                                scratchdir, meter)
             try:
@@ -454,7 +460,7 @@ class DistroInstaller(Installer):
 
         mediatype = self._get_media_type()
         return mediatype in [MEDIA_CDROM_URL, MEDIA_LOCATION_URL,
-                             MEDIA_LOCATION_PATH]
+                             MEDIA_LOCATION_DIR, MEDIA_LOCATION_CDROM]
 
     def check_location(self, guest):
         mediatype = self._get_media_type()

virtinst/urlfetcher.py

@@ -189,8 +189,14 @@ class _MountedImageFetcher(_LocalImageFetcher):
     Fetcher capable of extracting files from a NFS server
     or loopback mounted file, or local CDROM device
     """
+    _in_test_suite = bool("VIRTINST_TEST_SUITE" in os.environ)
+
     def prepareLocation(self):
         cmd = None
+
+        if self._in_test_suite:
+            self.srcdir = os.environ["VIRTINST_TEST_URL_DIR"]
+        else:
             self.srcdir = tempfile.mkdtemp(prefix="virtinstmnt.",
                                            dir=self.scratchdir)
         mountcmd = "/bin/mount"
@@ -207,6 +213,7 @@ class _MountedImageFetcher(_LocalImageFetcher):
 
         logging.debug("mount cmd: %s", cmd)
 
+        if not self._in_test_suite:
             ret = subprocess.call(cmd)
             if ret != 0:
                 self.cleanupLocation()
@@ -216,6 +223,8 @@ class _MountedImageFetcher(_LocalImageFetcher):
 
     def cleanupLocation(self):
         logging.debug("Cleaning up mount at " + self.srcdir)
+
+        if not self._in_test_suite:
             cmd = ["/bin/umount", self.srcdir]
             subprocess.call(cmd)
             try: