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authorDiego Sueiro <diego.sueiro@arm.com>2020-12-08 11:42:52 +0000
committerRichard Purdie <richard.purdie@linuxfoundation.org>2020-12-14 00:06:20 +0000
commit4c6dfcc8d38b1f4fa0b4b889def060adff3bf9f4 (patch)
treeccef57021f6b817958a0c8d63bdb56c683fb184e
parent289e6ff5cbd58afbca18112232342c120c3f5c7c (diff)
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wic: Introduce empty plugin to create unformatted empty partitions
The empty wic plugin is used to create unformatted empty partitions for wic images. To use it you must pass "empty" as argument for the "--source" parameter in the wks file. For example: part foo --source empty --ondisk sda --size="1024" --align 1024 Also adds a selftest for this plugin where the 'Fstype' column from 'wic ls' should be empty for the second partition as listed in test_empty_plugin.wks. Signed-off-by: Diego Sueiro <diego.sueiro@arm.com> Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>
-rw-r--r--meta-selftest/wic/test_empty_plugin.wks4
-rw-r--r--meta/lib/oeqa/selftest/cases/wic.py20
-rw-r--r--scripts/lib/wic/plugins/source/empty.py32
3 files changed, 56 insertions, 0 deletions
diff --git a/meta-selftest/wic/test_empty_plugin.wks b/meta-selftest/wic/test_empty_plugin.wks
new file mode 100644
index 0000000000..4e91e04e19
--- /dev/null
+++ b/meta-selftest/wic/test_empty_plugin.wks
@@ -0,0 +1,4 @@
+# short-description: image for checking empty partition creation
+
+part / --source rootfs --fstype=ext4 --align 1024 --use-uuid
+part empty --source empty --ondisk sda --size 1024 --align 1024
diff --git a/meta/lib/oeqa/selftest/cases/wic.py b/meta/lib/oeqa/selftest/cases/wic.py
index 714637ec1e..091f0ab47c 100644
--- a/meta/lib/oeqa/selftest/cases/wic.py
+++ b/meta/lib/oeqa/selftest/cases/wic.py
@@ -990,6 +990,26 @@ class Wic2(WicTestCase):
out = glob(self.resultdir + "%s-*direct" % wksname)
self.assertEqual(1, len(out))
+ def test_empty_plugin(self):
+ """Test empty plugin"""
+ config = 'IMAGE_FSTYPES = "wic"\nWKS_FILE = "test_empty_plugin.wks"\n'
+ self.append_config(config)
+ self.assertEqual(0, bitbake('core-image-minimal').status)
+ self.remove_config(config)
+
+ bb_vars = get_bb_vars(['DEPLOY_DIR_IMAGE', 'MACHINE'])
+ deploy_dir = bb_vars['DEPLOY_DIR_IMAGE']
+ machine = bb_vars['MACHINE']
+ image_path = os.path.join(deploy_dir, 'core-image-minimal-%s.wic' % machine)
+ self.assertEqual(True, os.path.exists(image_path))
+
+ sysroot = get_bb_var('RECIPE_SYSROOT_NATIVE', 'wic-tools')
+
+ # Fstype column from 'wic ls' should be empty for the second partition
+ # as listed in test_empty_plugin.wks
+ result = runCmd("wic ls %s -n %s | awk -F ' ' '{print $1 \" \" $5}' | grep '^2' | wc -w" % (image_path, sysroot))
+ self.assertEqual('1', result.output)
+
@only_for_arch(['i586', 'i686', 'x86_64'])
def test_biosplusefi_plugin_qemu(self):
"""Test biosplusefi plugin in qemu"""
diff --git a/scripts/lib/wic/plugins/source/empty.py b/scripts/lib/wic/plugins/source/empty.py
new file mode 100644
index 0000000000..041617d648
--- /dev/null
+++ b/scripts/lib/wic/plugins/source/empty.py
@@ -0,0 +1,32 @@
+#
+# SPDX-License-Identifier: MIT
+#
+
+# The empty wic plugin is used to create unformatted empty partitions for wic
+# images.
+# To use it you must pass "empty" as argument for the "--source" parameter in
+# the wks file. For example:
+# part foo --source empty --ondisk sda --size="1024" --align 1024
+
+import logging
+
+from wic.pluginbase import SourcePlugin
+
+logger = logging.getLogger('wic')
+
+class EmptyPartitionPlugin(SourcePlugin):
+ """
+ Populate unformatted empty partition.
+ """
+
+ name = 'empty'
+
+ @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.
+ """
+ return