Xen devel - Aug 2009 - [PATCH V2] xend: Add support for URI (''file:'' and ''data:'' scheme) for PV/kernel and PV/ramdisk

Hello!

Attached you can find a patch which adds support for ''file:''
and ''data:''
URI schemes for the parameters ''PV/kernel'' and
''PV/ramdisk'' in the
VM.create() call.
The ''data:'' scheme handling enables using a file which is
stored inside
the management system (from where the XenAPI call is send) as kernel
or ramdisk.

Notes:
o all included: a detailed description can be found in the xenapi
   documentation
o bumped up the version of the API document to 1.0.8 (because of
   (minimal) interface extension)
o Future enhancements (like http:, ftp: schemes) fit seamlessly into the
   current design / classes
o Unittest cases and xm-test case included

This is version 2 of the patch.  Version 1 had some problems / bugs and
was removed from the repository.

Changes to original version:
o Problem [1] ''xend: Don''t call decode() if PV_{kernel,
ramdisk} are''
   was fixed:
   It is now checked, if the appropriate value is specified and (if so) if
   the value is not '''' - only then the data/file uri handling
code is called.
o Problem [2] ''KeyError: ''use_tmp_kernel'' with
-unstable'' was fixed:
   When not using the data/file uri code the original patch did not handle
   the cases where ''use_tmp_xxx'' was not set.  This is fixed
in the current
   patch.  The original:
      if vmConfig[''use_tmp_kernel'']:
   is now changed to
      if ''use_tmp_kernel'' in vmConfig and
vmConfig[''use_tmp_kernel'']:
o Problem [3] ''python: make tools/python/xen/util/fileuri.py work on
   python 2.3'' was fixed:
   The patch to check the syntax for different python versions was
   introduced already [4].
o Unit tests are now split up into separate files (tools/tests/utests).
o Existing unit test were enhanced.
o Additional unit tests were added; especially to re-test problems [1]
   and [2].
o Unit tests can be executed with different versions of python.
o ''04_xapi-data_uri_handling'' xm-test exercising the new
functionality
   was added.

Kind regards

Andreas


[1] http://lists.xensource.com/archives/html/xen-devel/2009-07/msg00896.html
[2] http://lists.xensource.com/archives/html/xen-devel/2009-07/msg01006.html
[3] http://lists.xensource.com/archives/html/xen-devel/2009-07/msg00900.html
[4] http://lists.xensource.com/archives/html/xen-devel/2009-07/msg01121.html



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