[elbe-devel] [PATCH 7/9] finetuning: implement ImageFinetuningAction <extract_partition>

[Manuel Traut]

On 17:29 Wed 28 Nov     , Torben Hohn wrote:
> extract partition extracts a single partition image from
> the "currently mounted" (using <mount_drive>) loop device.
> 
> The extracted partition image is marked for gzip compression.

Ack - however if i merge it, i would open an issue, that we make the
compression configurable with an attribute for all kind of images.

> ---
>  elbepack/finetuning.py | 26 ++++++++++++++++++++++++++
>  schema/dbsfed.xsd      | 22 ++++++++++++++++++++++
>  2 files changed, 48 insertions(+)
> 
> diff --git a/elbepack/finetuning.py b/elbepack/finetuning.py
> index c53b13c6..3e395722 100644
> --- a/elbepack/finetuning.py
> +++ b/elbepack/finetuning.py
> @@ -569,6 +569,32 @@ class MountDriveImageAction(FinetuningAction):
>  FinetuningAction.register(MountDriveImageAction)
>  
>  
> +class ExtractPartitionAction(ImageFinetuningAction):
> +
> +    tag = 'extract_partition'
> +
> +    def __init__(self, node):
> +        ImageFinetuningAction.__init__(self, node)
> +
> +    def execute(self, _log, _buildenv, _target):
> +        raise NotImplementedError("<extract_partition> may only be "
> +                                  "used in <mount_drive>")
> +
> +    def execute_img(self, log, _buildenv, target, builddir, loop_dev):
> +        part_nr = self.node.et.attrib['part']
> +        imgname = os.path.join(builddir, self.node.et.text)
> +
> +        cmd = 'dd if=%sp%s of="%s"' % (loop_dev, part_nr, imgname)
> +
> +        log.do(cmd)
> +
> +        target.images.append(self.node.et.text)
> +        target.image_packers[self.node.et.text] = ('gzip -f', '.gz')
> +
> +
> +FinetuningAction.register(ExtractPartitionAction)
> +
> +
>  def do_finetuning(xml, log, buildenv, target):
>  
>      if not xml.has('target/finetuning'):
> diff --git a/schema/dbsfed.xsd b/schema/dbsfed.xsd
> index d9317c72..bb3a7cdf 100644
> --- a/schema/dbsfed.xsd
> +++ b/schema/dbsfed.xsd
> @@ -1923,9 +1923,31 @@
>        </documentation>
>      </annotation>
>      <choice>
> +      <element name="extract_partition" type="rfs:extract_partition" minOccurs="0">
> +        <annotation>
> +          <documentation>
> +            Extract a Partition from the currently mounted loop device.
> +          </documentation>
> +        </annotation>
> +      </element>
>      </choice>
>    </group>
>  
> +  <complexType name="extract_partition">
> +    <annotation>
> +      <documentation>
> +        Describe the partition to be extracted (nr) and the destination filename.
> +	The value of the tag describes the filename of the generated Imagefile.
> +	The Image is per default compressed with gzip afterwards.
> +      </documentation>
> +    </annotation>
> +    <simpleContent>
> +      <extension base="rfs:string">
> +        <attribute name="part" type="integer" use="required" />
> +      </extension>
> +    </simpleContent>
> +  </complexType>
> +
>    <complexType name="addgroup">
>      <annotation>
>        <documentation>
> -- 
> 2.11.0
> 
> 
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