Add script to convert datastore-indexes.xml to index.yaml

The gcloud datastore cleanup-indexes command takes its input in index.yaml form instead of datastore-indexes.yaml form. This simple translation script allows us to generate one from the other.

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Created by MOE: https://github.com/google/moe
MOE_MIGRATED_REVID=169260811

python/google/registry/scripts/testdata/datastore-indexes.xml

@@ -0,0 +1,86 @@
+<datastore-indexes autoGenerate="false">
+    <!-- For finding contact resources by registrar. -->
+    <datastore-index kind="ContactResource" ancestor="false" source="manual">
+        <property name="currentSponsorClientId" direction="asc"/>
+        <property name="deletionTime" direction="asc"/>
+    </datastore-index>
+    <!-- For finding domain resources by registrar. -->
+    <datastore-index kind="DomainBase" ancestor="false" source="manual">
+        <property name="^i" direction="asc"/>
+        <property name="currentSponsorClientId" direction="asc"/>
+        <property name="deletionTime" direction="asc"/>
+    </datastore-index>
+    <!-- For finding domain resources by TLD. -->
+    <datastore-index kind="DomainBase" ancestor="false" source="manual">
+        <property name="^i" direction="asc"/>
+        <property name="tld" direction="asc"/>
+        <property name="deletionTime" direction="asc"/>
+    </datastore-index>
+    <!-- For finding domain resources by registrar. -->
+    <datastore-index kind="DomainBase" ancestor="false" source="manual">
+        <property name="currentSponsorClientId" direction="asc"/>
+        <property name="deletionTime" direction="asc"/>
+    </datastore-index>
+    <!-- For finding host resources by registrar. -->
+    <datastore-index kind="HostResource" ancestor="false" source="manual">
+        <property name="currentSponsorClientId" direction="asc"/>
+        <property name="deletionTime" direction="asc"/>
+    </datastore-index>
+    <!-- For finding account balance of registrar and viewing billing history. -->
+    <datastore-index kind="RegistrarBillingEntry" ancestor="true" source="manual">
+        <property name="currency" direction="asc"/>
+        <property name="created" direction="desc"/>
+    </datastore-index>
+    <!-- For determining the active domains linked to a given contact. -->
+    <datastore-index kind="DomainBase" ancestor="false" source="manual">
+        <property name="allContacts.contact" direction="asc"/>
+        <property name="deletionTime" direction="asc"/>
+    </datastore-index>
+    <!-- For determining the active domains linked to a given host. -->
+    <datastore-index kind="DomainBase" ancestor="false" source="manual">
+        <property name="nsHosts" direction="asc"/>
+        <property name="deletionTime" direction="asc"/>
+    </datastore-index>
+    <!-- For RDAP searches by linked nameserver. -->
+    <datastore-index kind="DomainBase" ancestor="false" source="manual">
+        <property name="^i" direction="asc"/>
+        <property name="nsHosts" direction="asc"/>
+        <property name="deletionTime" direction="asc"/>
+    </datastore-index>
+    <!-- For WHOIS IP address lookup -->
+    <datastore-index kind="HostResource" ancestor="false" source="manual">
+        <property name="inetAddresses" direction="asc"/>
+        <property name="deletionTime" direction="asc"/>
+    </datastore-index>
+    <!-- For Poll -->
+    <datastore-index kind="PollMessage" ancestor="false" source="manual">
+        <property name="clientId" direction="asc"/>
+        <property name="eventTime" direction="asc"/>
+    </datastore-index>
+    <datastore-index kind="PollMessage" ancestor="true" source="manual">
+        <property name="clientId" direction="asc"/>
+        <property name="eventTime" direction="asc"/>
+    </datastore-index>
+    <!-- For the history viewer. -->
+    <datastore-index kind="HistoryEntry" ancestor="true" source="manual">
+        <property name="modificationTime" direction="asc"/>
+    </datastore-index>
+    <!-- For RDAP. -->
+    <datastore-index kind="DomainBase" ancestor="false" source="manual">
+        <property name="^i" direction="asc"/>
+        <property name="fullyQualifiedDomainName" direction="asc"/>
+    </datastore-index>
+    <datastore-index kind="DomainBase" ancestor="false" source="manual">
+        <property name="^i" direction="asc"/>
+        <property name="tld" direction="asc"/>
+        <property name="fullyQualifiedDomainName" direction="asc"/>
+    </datastore-index>
+    <datastore-index kind="HostResource" ancestor="false" source="manual">
+        <property name="deletionTime" direction="asc"/>
+        <property name="fullyQualifiedHostName" direction="asc"/>
+    </datastore-index>
+    <datastore-index kind="ContactResource" ancestor="false" source="manual">
+        <property name="deletionTime" direction="asc"/>
+        <property name="searchName" direction="asc"/>
+    </datastore-index>
+</datastore-indexes>

python/google/registry/scripts/testdata/index.yaml

@@ -0,0 +1,93 @@
+indexes:
+
+- kind: ContactResource
+  properties:
+  - name: currentSponsorClientId
+  - name: deletionTime
+
+- kind: DomainBase
+  properties:
+  - name: ^i
+  - name: currentSponsorClientId
+  - name: deletionTime
+
+- kind: DomainBase
+  properties:
+  - name: ^i
+  - name: tld
+  - name: deletionTime
+
+- kind: DomainBase
+  properties:
+  - name: currentSponsorClientId
+  - name: deletionTime
+
+- kind: HostResource
+  properties:
+  - name: currentSponsorClientId
+  - name: deletionTime
+
+- kind: RegistrarBillingEntry
+  ancestor: yes
+  properties:
+  - name: currency
+  - name: created
+    direction: desc
+
+- kind: DomainBase
+  properties:
+  - name: allContacts.contact
+  - name: deletionTime
+
+- kind: DomainBase
+  properties:
+  - name: nsHosts
+  - name: deletionTime
+
+- kind: DomainBase
+  properties:
+  - name: ^i
+  - name: nsHosts
+  - name: deletionTime
+
+- kind: HostResource
+  properties:
+  - name: inetAddresses
+  - name: deletionTime
+
+- kind: PollMessage
+  properties:
+  - name: clientId
+  - name: eventTime
+
+- kind: PollMessage
+  ancestor: yes
+  properties:
+  - name: clientId
+  - name: eventTime
+
+- kind: HistoryEntry
+  ancestor: yes
+  properties:
+  - name: modificationTime
+
+- kind: DomainBase
+  properties:
+  - name: ^i
+  - name: fullyQualifiedDomainName
+
+- kind: DomainBase
+  properties:
+  - name: ^i
+  - name: tld
+  - name: fullyQualifiedDomainName
+
+- kind: HostResource
+  properties:
+  - name: deletionTime
+  - name: fullyQualifiedHostName
+
+- kind: ContactResource
+  properties:
+  - name: deletionTime
+  - name: searchName