Add WKS for OTA-enabled bootable SD cards.

[oytis]: v2 deleted 'sleep 2'
[oytis]: v3 disabled wic for devices that don't yet support sota+wic

Bug-AGL: SPEC-413

Change-Id: I52a31c9bc66001ed83e83c2f883d046d99ee3c67
Signed-off-by: Anton Gerasimov <anton@advancedtelematic.com>

2 files changed, 75 insertions, 0 deletions

diff --git a/meta-sota/scripts/lib/wic/canned-wks/sdimage-sota.wks b/meta-sota/scripts/lib/wic/canned-wks/sdimage-sota.wks
new file mode 100644
index 0000000..c31c3a5
--- /dev/null
+++ b/meta-sota/scripts/lib/wic/canned-wks/sdimage-sota.wks
@@ -0,0 +1,7 @@
+# short-description: Create OTA-enabled SD card image
+# long-description: Creates a partitioned SD card image with OSTree
+# physical sysroot as a payload. Boot files are located in the
+# first vfat partition.
+
+part /boot --source bootimg-partition --ondisk mmcblk --fstype=vfat --label boot --active --align 4096 --size 20
+part / --source otaimage --ondisk mmcblk --fstype=ext4 --label root --align 4096
diff --git a/meta-sota/scripts/lib/wic/plugins/source/otaimage.py b/meta-sota/scripts/lib/wic/plugins/source/otaimage.py
new file mode 100644
index 0000000..4ef3b69
--- /dev/null
+++ b/meta-sota/scripts/lib/wic/plugins/source/otaimage.py
@@ -0,0 +1,68 @@
+# ex:ts=4:sw=4:sts=4:et
+# -*- tab-width: 4; c-basic-offset: 4; indent-tabs-mode: nil -*-
+#
+# This program is free software; you can redistribute it and/or modify
+# it under the terms of the GNU General Public License version 2 as
+# published by the Free Software Foundation.
+#
+# 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 os
+
+from wic import msger
+from wic.pluginbase import SourcePlugin
+from wic.utils.oe.misc import get_bitbake_var
+
+class OTAImagePlugin(SourcePlugin):
+    """
+    Add an already existing filesystem image to the partition layout.
+    """
+
+    name = 'otaimage'
+
+    @classmethod
+    def do_install_disk(cls, disk, disk_name, cr, workdir, oe_builddir,
+                        bootimg_dir, kernel_dir, native_sysroot):
+        """
+        Called after all partitions have been prepared and assembled into a
+        disk image. Do nothing.
+        """
+        pass
+
+    @classmethod
+    def do_configure_partition(cls, part, source_params, cr, cr_workdir,
+                               oe_builddir, bootimg_dir, kernel_dir,
+                               native_sysroot):
+        """
+        Called before do_prepare_partition(). Possibly prepare
+        configuration files of some sort.
+        """
+        pass
+
+    @classmethod
+    def do_prepare_partition(cls, part, source_params, cr, cr_workdir,
+                             oe_builddir, bootimg_dir, kernel_dir,
+                             rootfs_dir, native_sysroot):
+        """
+        Called to do the actual content population for a partition i.e. it
+        'prepares' the partition to be incorporated into the image.
+        """
+        if not bootimg_dir:
+            bootimg_dir = get_bitbake_var("DEPLOY_DIR_IMAGE")
+            if not bootimg_dir:
+                msger.error("Couldn't find DEPLOY_DIR_IMAGE, exiting\n")
+
+        msger.debug('Bootimg dir: %s' % bootimg_dir)
+
+        src = bootimg_dir + "/" + get_bitbake_var("IMAGE_LINK_NAME") + ".otaimg"
+
+        msger.debug('Preparing partition using image %s' % (src))
+        part.prepare_rootfs_from_fs_image(cr_workdir, src, "")