add qcow image support

Change-Id: I5d357a162b2227beaff35f4a5ef913d36a2a6972
Signed-off-by: Gui Chen <gui.chen@intel.com>

diff --git a/plugins/imager/qcow_plugin.py b/plugins/imager/qcow_plugin.py
new file mode 100644 (file)
index 0000000..03ed0da
--- /dev/null
+++ b/plugins/imager/qcow_plugin.py
@@ -0,0 +1,170 @@
+#
+# Copyright (c) 2014 Intel, Inc.
+#
+# 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; version 2 of the License
+#
+# 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.
+
+import os
+import shutil
+
+from mic import msger, rt_util
+from mic.conf import configmgr
+from mic.plugin import pluginmgr
+from mic.pluginbase import ImagerPlugin
+from mic.imager.loop import LoopImageCreator
+from mic.utils import errors, fs_related, runner
+
+class QcowImageCreator(LoopImageCreator):
+    img_format = 'qcow'
+
+    def __init__(self, creatoropts=None, pkgmgr=None):
+        LoopImageCreator.__init__(self, creatoropts, pkgmgr) 
+        self.cmd_qemuimg = 'qemu-img'
+
+    def _stage_final_image(self):
+        try:
+            self.cmd_qemuimg = fs_related.find_binary_path('qemu-img')
+        except errors.CreatorError:
+            return LoopImageCreator._stage_final_image(self)
+
+        self._resparse()
+
+        imgfile = None
+        for item in self._instloops:
+            if item['mountpoint'] == '/':
+                if item['fstype'] == "ext4":
+                    runner.show('/sbin/tune2fs -O ^huge_file,extents,uninit_bg %s'
+                                % imgfile)
+                self.image_files.setdefault('partitions', {}).update(
+                         {item['mountpoint']: item['label']})
+                imgfile = os.path.join(self._imgdir, item['name'])
+
+        if imgfile:
+            qemuimage = imgfile + ".x86"
+            runner.show("%s convert -O qcow2 %s %s"
+                        % (self.cmd_qemuimg, imgfile, qemuimage))
+            os.unlink(imgfile)
+            os.rename(qemuimage, imgfile)
+
+        for item in os.listdir(self._imgdir):
+            shutil.move(os.path.join(self._imgdir, item),
+                        os.path.join(self._outdir, item))
+
+class QcowPlugin(ImagerPlugin):
+    name = 'qcow'
+
+    @classmethod
+    def do_create(cls, subcmd, opts, *args):
+        """${cmd_name}: create qcow image
+
+        Usage:
+            ${name} ${cmd_name} <ksfile> [OPTS]
+
+        ${cmd_option_list}
+        """
+        if len(args) != 1:
+            raise errors.Usage("Extra arguments given")
+
+        creatoropts = configmgr.create
+        ksconf = args[0]
+
+        if creatoropts['runtime'] == "bootstrap":
+            configmgr._ksconf = ksconf
+            rt_util.bootstrap_mic()
+        elif not rt_util.inbootstrap():
+            try:
+                fs_related.find_binary_path('mic-native')
+            except errors.CreatorError:
+                if not msger.ask("Subpackage \"mic-native\" has not been "
+                                 "installed in your host system, still "
+                                 "continue with \"native\" running mode?",
+                                 False):
+                    raise errors.Abort("Abort because subpackage 'mic-native' "
+                                       "has not been installed")
+
+        recording_pkgs = []
+        if len(creatoropts['record_pkgs']) > 0:
+            recording_pkgs = creatoropts['record_pkgs']
+
+        if creatoropts['release'] is not None:
+            if 'name' not in recording_pkgs:
+                recording_pkgs.append('name')
+            if 'vcs' not in recording_pkgs:
+                recording_pkgs.append('vcs')
+
+        configmgr._ksconf = ksconf
+
+        # try to find the pkgmgr
+        pkgmgr = None
+        backends = pluginmgr.get_plugins('backend')
+        if 'auto' == creatoropts['pkgmgr']:
+            for key in configmgr.prefer_backends:
+                if key in backends:
+                    pkgmgr = backends[key]
+                    break
+        else:
+            for key in backends.keys():
+                if key == creatoropts['pkgmgr']:
+                    pkgmgr = backends[key]
+                    break
+
+        if not pkgmgr:
+            raise errors.CreatorError("Can't find backend: %s, "
+                                      "available choices: %s" %
+                                      (creatoropts['pkgmgr'],
+                                       ','.join(backends.keys())))
+
+        creator = QcowImageCreator(creatoropts,
+                                   pkgmgr)
+
+        if len(recording_pkgs) > 0:
+            creator._recording_pkgs = recording_pkgs
+
+        image_names = [creator.name + ".img"]
+        image_names.extend(creator.get_image_names())
+        cls.check_image_exists(creator.destdir,
+                                creator.pack_to,
+                                image_names,
+                                creatoropts['release'])
+
+        try:
+            creator.check_depend_tools()
+            creator.mount(None, creatoropts["cachedir"])
+            creator.install()
+            creator.configure(creatoropts["repomd"])
+            creator.copy_kernel()
+            creator.unmount()
+            creator.package(creatoropts["destdir"])
+            creator.create_manifest()
+
+            if creatoropts['release'] is not None:
+                creator.release_output(ksconf,
+                                       creatoropts['destdir'],
+                                       creatoropts['release'])
+            creator.print_outimage_info()
+
+        except errors.CreatorError:
+            raise
+        finally:
+            creator.cleanup()
+
+        msger.info("Finished.")
+        return 0
+
+    @classmethod
+    def do_chroot(cls, target, cmd=[]):
+        pass
+
+    @classmethod
+    def do_unpack(cls, srcimg):
+        pass