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369cdfa8f5
This patch is my first experience playing with nested grammars, as documented in http://relaxng.org/tutorial-20011203.html#IDA3PZR. I plan on doing more overrides in order to make the RelaxNG grammar mirror the C code refactoring into a common virStorageSource, but where different clients of that source do not support the same subset of functionality. By starting with something fairly easy to validate, I can make sure my later patches will be possible. This patch adds a use of the no-op <ref name='sourceStartupPolicy'/> to the disksnapshot definition, so that the snapshot version of a type='file' <source> more closely resembles the version in domaincommon. A future patch will merge the two files into using a common define, but this patch is sufficient for testing that adding <source startupPolicy='optional'/> in any of the tests/domainsnapshotxml2xmlin/*.xml files still gets rejected unless it occurs within the <domain> subelement, because the definition of startupPolicy is empty outside of domain.rng. * docs/schemas/storagecommon.rng (storageStartupPolicy) (storageSourceExtra): Create no-op defaults. * docs/schemas/domainsnapshot.rng (domain): Use nested grammar to avoid restricting <domain>. (storageSourceExtra): Create new override. (disksnapshot): Access overrides through common names. * docs/schemas/domaincommon.rng (disk): Access overrides through common names. * docs/schemas/domain.rng (storageStartupPolicy) (storageSourceExtra): Create new overrides. Signed-off-by: Eric Blake <eblake@redhat.com> Signed-off-by: Jiri Denemark <jdenemar@redhat.com>
97 lines
2.5 KiB
XML
97 lines
2.5 KiB
XML
<?xml version="1.0"?>
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<!-- A Relax NG schema for common libvirt XML storage elements -->
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<grammar xmlns="http://relaxng.org/ns/structure/1.0"
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datatypeLibrary="http://www.w3.org/2001/XMLSchema-datatypes">
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<!-- This schema is not designed for standalone use; another file
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must include both this file and basictypes.rng -->
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<define name='encryption'>
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<element name='encryption'>
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<attribute name='format'>
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<choice>
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<value>default</value>
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<value>qcow</value>
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</choice>
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</attribute>
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<zeroOrMore>
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<ref name='secret'/>
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</zeroOrMore>
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</element>
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</define>
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<define name='secret'>
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<element name='secret'>
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<attribute name='type'>
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<choice>
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<value>passphrase</value>
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</choice>
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</attribute>
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<attribute name='uuid'>
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<ref name="UUID"/>
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</attribute>
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</element>
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</define>
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<define name='compat'>
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<element name='compat'>
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<data type='string'>
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<param name='pattern'>[0-9]+\.[0-9]+</param>
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</data>
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</element>
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</define>
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<define name='fileFormatFeatures'>
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<element name='features'>
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<interleave>
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<optional>
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<element name='lazy_refcounts'>
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<empty/>
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</element>
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</optional>
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</interleave>
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</element>
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</define>
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<!-- split the list of known storage formats into two, those where
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we know how to follow backing chains, and all others -->
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<define name='storageFormatBacking'>
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<choice>
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<value>cow</value>
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<value>qcow</value>
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<value>qcow2</value>
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<value>qed</value>
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<value>vmdk</value>
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</choice>
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</define>
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<define name='storageFormat'>
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<choice>
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<value>raw</value>
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<value>dir</value>
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<value>bochs</value>
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<value>cloop</value>
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<value>dmg</value>
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<value>iso</value>
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<value>vpc</value>
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<value>vdi</value>
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<value>fat</value>
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<value>vhd</value>
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<ref name='storageFormatBacking'/>
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</choice>
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</define>
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<define name='storageStartupPolicy'>
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<!-- Use a combine='choice' override in client files that want to
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add additional attributes to a <source> sub-element
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associated with a storage source -->
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<notAllowed/>
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</define>
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<define name='storageSourceExtra'>
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<!-- Use a combine='choice' override in client files that want to
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add additional elements as siblings of a <source> sub-element
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associated with a storage source -->
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<notAllowed/>
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</define>
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</grammar>
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