mattandneil/build.xml

## build.xml
<macrodef name="destroy" description="Destroys all metadata in an organization - Revision 23">

    <attribute name="username" />
    <attribute name="password" />
    <attribute name="serverurl" default="https://login.salesforce.com" />
    <attribute name="tempDir" default="temp/destroy" description="Directory to write metadata." />
    <attribute name="apiVersion" default="43.0" />

    <sequential>

        <!-- prompt user to confirm -->
        <input message="THIS TASK IRREVERSIBLY DESTROYS ALL METADATA. ARE YOU SURE?" validargs="@{serverurl}/?un=@{username}" />

        <!-- http api helper -->
        <macrodef name="soapcall">
            <text name="request" />
            <attribute name="endpoint" />
            <attribute name="tempfile" default="" />
            <attribute name="soapaction" default="&quot;&quot;" />
            <sequential>
                <local name="request" />
                <property name="request" value="@{request}" />
                <script language="javascript">with (new JavaImporter(java.net, java.io)) {
                    var line, result = '', connection = new URL('@{endpoint}').openConnection();
                    connection.setDoOutput(true);
                    connection.setRequestMethod('POST');
                    connection.setRequestProperty('Content-Type', 'text/xml');
                    connection.setRequestProperty('SOAPAction', '@{soapaction}');
                    var writer = new OutputStreamWriter(connection.getOutputStream());
                    writer.write(project.getProperty('request')); writer.flush(); //request
                    var reader = new BufferedReader(new InputStreamReader(connection.getInputStream()));
                    while ((line = reader.readLine()) != null) result += line + '\n'; reader.close(); //response
                    var echo = project.createTask('echo');
                    if ('@{tempfile}') echo.setFile(new File('@{tempfile}'));
                    echo.setMessage(result);
                    echo.perform();
                }</script>
            </sequential>
        </macrodef>

        <!-- http soap login -->
        <local name="loginResponse.tmp" />
        <tempfile property="loginResponse.tmp" prefix="loginResponse" suffix=".tmp" createfile="true" deleteonexit="true" />
        <soapcall tempfile="${loginResponse.tmp}" endpoint="@{serverurl}/services/Soap/u/@{apiVersion}" soapaction="login"><![CDATA[
            <Envelope xmlns="http://schemas.xmlsoap.org/soap/envelope/">
                <Body>
                    <login xmlns="urn:partner.soap.sforce.com">
                        <username>@{username}</username>
                        <password>@{password}</password>
                    </login>
                </Body>
            </Envelope>
        ]]></soapcall>

        <!-- parse endpoint -->
        <local name="loginUrl" />
        <loadfile property="loginUrl" srcFile="${loginResponse.tmp}">
            <filterchain><tokenfilter><filetokenizer/><replaceregex flags="gs" pattern=".*(https://[^/]+).*" replace="\1" /></tokenfilter></filterchain>
        </loadfile>

        <!-- parse session -->
        <local name="sessionId" />
        <loadfile property="sessionId" srcFile="${loginResponse.tmp}">
            <filterchain><tokenfilter><filetokenizer/><replaceregex flags="gs" pattern=".*&lt;sessionId&gt;([^&lt;]+)&lt;/sessionId&gt;.*" replace="\1" /></tokenfilter></filterchain>
        </loadfile>

        <!-- stop all running jobs and clear roles and permission set dependencies with execanon -->
        <soapcall endpoint="${loginUrl}/services/Soap/T/@{apiVersion}"><![CDATA[
            <Envelope xmlns="http://schemas.xmlsoap.org/soap/envelope/">
                <Header>
                    <SessionHeader xmlns="urn:tooling.soap.sforce.com">
                        <sessionId>${sessionId}</sessionId>
                    </SessionHeader>
                </Header>
                <Body>
                    <executeAnonymous xmlns="urn:tooling.soap.sforce.com">
                        <String>
                            delete [SELECT Id FROM PermissionSetAssignment WHERE PermissionSet.ProfileId = null];
                            for (SObject cron : [SELECT Id FROM CronTrigger]) System.abortJob(cron.Id);
                            User[] users = [SELECT Id FROM User WHERE UserRoleId != null];
                            for (User user : users) user.UserRoleId = null;
                            update users;
                        </String>
                    </executeAnonymous>
                </Body>
            </Envelope>
        ]]></soapcall>

        <!-- reset working directory -->
        <delete dir="@{tempDir}" />
        <mkdir dir="@{tempDir}" />

        <!-- determines org shape -->
        <local name="describeMetadataResult.tmp" />
        <tempfile property="describeMetadataResult.tmp" prefix="describeMetadataResult" suffix=".tmp" createfile="true" deleteonexit="true" />
        <sf:describeMetadata serverurl="${loginUrl}" sessionid="${sessionId}" resultFilePath="${describeMetadataResult.tmp}" />

        <!-- clean metadata descriptions -->
        <local name="metadataTypes.tmp" />
        <tempfile property="metadataTypes.tmp" prefix="metadataTypes" suffix=".tmp" createfile="true" deleteonexit="true" />
        <concat destFile="${metadataTypes.tmp}">
            <fileset file="${describeMetadataResult.tmp}" />
            <filterchain>
                <linecontainsregexp><regexp pattern="ChildObjects|XMLName" /></linecontainsregexp>
                <tokenfilter><replacestring from="," to="${line.separator}"/></tokenfilter>
                <tokenfilter><replacestring from="ChildObjects: " to=""/></tokenfilter>
                <tokenfilter><replacestring from="XMLName: " to=""/></tokenfilter>
                <tokenfilter><replacestring from="*" to=""/></tokenfilter>
                <tokenfilter><ignoreblank/></tokenfilter>
                <sortfilter/>
            </filterchain>
        </concat>

        <!-- lists by type with regex filter -->
        <macrodef name="listMetadataForDestroy">
            <attribute name="negate" />
            <attribute name="pattern" />
            <attribute name="metadataType" />
            <sequential>
                <echo>Preparing destructiveChangesPost.xml - @{metadataType}</echo>
                <local name="listMetadataResult.tmp" />
                <tempfile property="listMetadataResult.tmp" prefix="@{metadataType}" suffix=".tmp" createfile="true" deleteonexit="true" />
                <sf:listMetadata serverurl="${loginUrl}" sessionid="${sessionId}" metadataType="@{metadataType}" resultFilePath="${listMetadataResult.tmp}" />
                <concat destFile="@{tempDir}/destructiveChangesPost.xml" append="true">
                    <fileset file="${listMetadataResult.tmp}" />
                    <header filtering="false"><![CDATA[${line.separator}<types>${line.separator}    <name>@{metadataType}</name>${line.separator}]]></header>
                    <filterchain>
                        <linecontains><contains value="FullName/Id" /></linecontains>
                        <replaceregex pattern="FullName/Id: (.+)/.*" replace="&lt;members&gt;\1&lt;/members&gt;" />
                        <linecontainsregexp negate="@{negate}"><regexp pattern="@{pattern}" /></linecontainsregexp>
                    </filterchain>
                    <footer filtering="false"><![CDATA[</types>]]></footer>
                </concat>
            </sequential>
        </macrodef>

        <!-- open destructive changes definition -->
        <echo file="@{tempDir}/destructiveChangesPost.xml"><![CDATA[<Package>]]></echo>

        <!-- iterates over (most) metadata types -->
        <loadfile property="" srcFile="${metadataTypes.tmp}">
            <filterchain>
                <!-- AppMenu - AppSwitcher.appmenu - Error: The AppMenu called 'AppSwitcher' is standard and cannot be deleted -->
                <!-- AssignmentRules - Case.assignmentRules - Error: The AssignmentRules called 'Case' is standard and cannot be deleted -->
                <!-- AutoResponseRules - Lead.autoResponseRules - Error: The AutoResponseRules called 'Lead' is standard and cannot be deleted -->
                <!-- Certificate - SelfSignedCert.crt - Error: We can't delete this certificate because your Identity Provider is using it -->
                <!-- CleanDataService - DataCloudCompanyMatch - Error: You can't delete default data integration rule -->
                <!-- Community - Zone.community - Error: invalid parameter value -->
                <!-- ConnectedApp - Connected Apps may be used in use by other orgs so don't trash them -->
                <!-- CustomSite - BigAss.site - Error: insufficient access rights on cross-reference id -->
                <!-- CustomObjectTranslation - MyMeta__mdt-en_US - Error: The CustomObjectTranslation called 'MyMeta__mdt-en_US' is standard and cannot be deleted -->
                <!-- EscalationRules - Case.escalationRules: - Error: The EscalationRules called 'Case' is standard and cannot be deleted -->
                <!-- Flow - TaskNotify.flowDefinition - Error: insufficient access rights on cross-reference id -->
                <!-- InstalledPackage - Error: cannot modify managed object: state=installed -->
                <!-- MatchingRules - Account.matchingRule: - Error: Matching Rules have to be deleted individually -->
                <!-- RecordType - Metric.Completion - Error: Cannot delete record type through API -->
                <!-- SharingRules - Account.sharingRules - Error: The SharingRules called 'Account' is standard and cannot be deleted -->
                <!-- TopicsForObjects - Error: Entity type 'TopicsForObjects' is not available for delete in this api version -->
                <!-- Workflow - Account.workflow - Error: Cannot delete a workflow object; Workflow Rules and Actions must be deleted individually -->
                <linecontainsregexp negate="true">
                    <regexp pattern="AppMenu|AssignmentRules|AutoResponseRules|Certificate|CleanDataService|Community|ConnectedApp|CustomSite|CustomObjectTranslation|EscalationRules|Flow|InstalledPackage|MatchingRules|RecordType|SharingRules|TopicsForObjects|Workflow" />
                </linecontainsregexp>
                <!-- Layout - Remove only: Account-Account %28Marketing%29 and WorkFeedback-Feedback Layout - Summer %2715 etc -->
                <!-- Profile - Remove only: Custom: Marketing Profile and Custom: Support Profile and Custom: Sales Profile etc -->
                <!-- ListView - Leaves behind: Activity.All, Asset.All, Campaign.All, Contract.All, Product2.All, User.All etc -->
                <!-- ApexPage - Leaves behind: SiteHome Visualforce Page which is required in orgs containing Force.com Sites -->
                <!-- CustomField - Leaves behind: BigObject Customer_Interaction__b.Score_This_Game__c etc -->
                <!-- MatchingRule - Leaves behind: Lead.Standard_Lead_Match_Rule_v1_0 and Account.Standard_Account_Match_Rule_v1_0 etc -->
                <!-- CustomObject - Remove only: Big Objects, Custom Objects, Platform Events, External Objects etc -->
                <!-- BusinessProcess - Leaves behind: Case.master etc -->
                <!-- CustomApplication - Leaves behind: standard__AppLauncher etc -->
                <scriptfilter language="javascript">
                    var negate = false, pattern = '.*', metadataType = self.getToken();
                    if ('Layout' == metadataType) (negate = false) | (pattern = '%27|%28|%29');
                    if ('Profile' == metadataType) (negate = false) | (pattern = 'Custom%3A');
                    if ('ListView' == metadataType) (negate = true) | (pattern = '\\.All&lt;/members&gt;');
                    if ('ApexPage' == metadataType) (negate = true) | (pattern = '&gt;SiteHome&lt;');
                    if ('CustomField' == metadataType) (negate = true) | (pattern = '__b\\.');
                    if ('MatchingRule' == metadataType) (negate = true) | (pattern = 'Standard_');
                    if ('CustomObject' == metadataType) (negate = false) | (pattern = '__b|__c|__e|__x|__mdt');
                    if ('BusinessProcess' == metadataType) (negate = true) | (pattern = 'master');
                    if ('CustomApplication' == metadataType) (negate = true) | (pattern = 'standard__');
                    var macro = project.createTask('listMetadataForDestroy');
                    macro.setDynamicAttribute('negate', negate);
                    macro.setDynamicAttribute('pattern', pattern);
                    macro.setDynamicAttribute('metadatatype', metadataType);
                    macro.execute(); //dynamic attributes are lowercase insistent
                </scriptfilter>
            </filterchain>
        </loadfile>

        <!-- close destructive changes definition -->
        <echo append="true" file="@{tempDir}/destructiveChangesPost.xml"><![CDATA[</Package>]]></echo>

        <!-- retrieves by type and regex replaces -->
        <macrodef name="bulkRetrieveForDestroy">
            <attribute name="metadataType" />
            <attribute name="directoryName" />
            <attribute name="pattern" />
            <attribute name="expression" />
            <sequential>
                <echo>Preparing package.xml - @{metadataType}</echo>
                <mkdir dir="@{tempDir}/@{directoryName}" />
                <sf:bulkRetrieve serverurl="${loginUrl}" sessionid="${sessionId}" retrieveTarget="@{tempDir}" metadataType="@{metadataType}" batchSize="10000" />
                <replaceregexp flags="gs">
                    <fileset dir="@{tempDir}/@{directoryName}" />
                    <regexp pattern="@{pattern}" />
                    <substitution expression="@{expression}" />
                </replaceregexp>
            </sequential>
        </macrodef>

        <!-- fix layout custom links - Error: This WebLink is referenced elsewhere in salesforce.com -->
        <bulkRetrieveForDestroy
            metadataType="Layout"
            directoryName="layouts"
            pattern="&lt;layoutItems&gt;\s+&lt;customLink&gt;[^&lt;]+&lt;/customLink&gt;\s+&lt;/layoutItems&gt;"
            expression="&lt;!--\0--&gt;"
        />

        <!-- fix layout custom buttons - Error: This WebLink is referenced elsewhere in salesforce.com - Order-Order Layout -->
        <replaceregexp flags="gs">
            <fileset dir="@{tempDir}/layouts" />
            <regexp pattern="&lt;customButtons&gt;[^&lt;]+&lt;/customButtons&gt;" />
            <substitution expression="&lt;!--\0--&gt;" />
        </replaceregexp>

        <!-- fix layout custom actions - Error: Cannot delete action EditDescription. The following layout is referencing this. : Task Layout. -->
        <replaceregexp flags="gs">
            <fileset dir="@{tempDir}/layouts" />
            <regexp pattern="&lt;quickActionList&gt;.+&lt;/quickActionList&gt;" />
            <substitution expression="&lt;!--\0--&gt;" />
        </replaceregexp>

        <!-- fix profile default apps - Error: Unable to delete custom app. Profiles are using this custom app as default -->
        <bulkRetrieveForDestroy
            metadataType="Profile"
            directoryName="profiles"
            pattern="&lt;userPermissions&gt;.*&lt;/userPermissions&gt;"
            expression="&lt;applicationVisibilities&gt;&lt;application&gt;standard__AppLauncher&lt;/application&gt;&lt;default&gt;true&lt;/default&gt;&lt;visible&gt;true&lt;/visible&gt;&lt;/applicationVisibilities&gt;"
        />

        <!-- fix apex class dependencies - Parent__c - Error: This custom field is referenced elsewhere in salesforce.com -->
        <bulkRetrieveForDestroy
            metadataType="ApexClass"
            directoryName="classes"
            pattern="(/\*.*?\*/)?.+?\s+class\s+([A-Za-z0-9_]+)\s*([A-Za-z0-9&lt;. ,&gt;]*)?\s*\{.*\}"
            expression="public class \2 {public \2(){} public \2(ApexPages.StandardController c){} public \2(ApexPages.StandardSetController c){}}"
        />

        <!-- fix visualforce page dependencies - Parent__c - Error: This custom field is referenced elsewhere in salesforce.com -->
        <bulkRetrieveForDestroy
            metadataType="ApexPage"
            directoryName="pages"
            pattern=".*apex:page.*"
            expression="&lt;apex:page \1/&gt;"
        />

        <!-- fix trigger dependencies -->
        <bulkRetrieveForDestroy
            metadataType="ApexTrigger"
            directoryName="triggers"
            pattern="(/\*.*?\*/)?.*?\s*?trigger\s+([A-Za-z0-9_]+)\s+on\s+([A-Za-z0-9_]*)?.*"
            expression="trigger \2 on \3 (after insert) {}"
        />

        <!-- fix role parents - Error: Your attempt to delete the role could not be completed because at least one role reports to that role -->
        <bulkRetrieveForDestroy
            metadataType="Role"
            directoryName="roles"
            pattern="&lt;parentRole&gt;[^&lt;]+&lt;/parentRole&gt;"
            expression="&lt;!--\0--&gt;"
        />

        <!-- fix object listviews - Error: cannot delete last filter -->
        <bulkRetrieveForDestroy
            metadataType="ListView"
            directoryName="objects"
            pattern="&lt;listViews&gt;.*&lt;/listViews&gt;"
            expression="&lt;listViews&gt;&lt;fullName&gt;All&lt;/fullName&gt;&lt;filterScope&gt;Everything&lt;/filterScope&gt;&lt;label&gt;All&lt;/label&gt;&lt;/listViews&gt;"
        />

        <!-- fix site dependencies - Error: This static resource is referenced elsewhere in salesforce.com. Remove the usage and try again -->
        <bulkRetrieveForDestroy
            metadataType="CustomSite"
            directoryName="sites"
            pattern="&lt;CustomSite xmlns=&quot;http://soap.sforce.com/2006/04/metadata&quot;&gt;.*&lt;active&gt;([^&lt;]+)&lt;/active&gt;.*&lt;allowStandardPortalPages&gt;([^&lt;]+)&lt;/allowStandardPortalPages&gt;.*&lt;clickjackProtectionLevel&gt;([^&lt;]+)&lt;/clickjackProtectionLevel&gt;.*&lt;indexPage&gt;([^&lt;]+)&lt;/indexPage&gt;.*&lt;masterLabel&gt;([^&lt;]+)&lt;/masterLabel&gt;.*&lt;requireHttps&gt;([^&lt;]+)&lt;/requireHttps&gt;.*&lt;siteType&gt;([^&lt;]+)&lt;/siteType&gt;.*&lt;subdomain&gt;([^&lt;]+)&lt;/subdomain&gt;.*&lt;/CustomSite&gt;"
            expression="&lt;CustomSite xmlns=&quot;http://soap.sforce.com/2006/04/metadata&quot;&gt;${line.separator}&lt;active&gt;\1&lt;/active&gt;${line.separator}&lt;allowStandardPortalPages&gt;\2&lt;/allowStandardPortalPages&gt;${line.separator}&lt;clickjackProtectionLevel&gt;\3&lt;/clickjackProtectionLevel&gt;${line.separator}&lt;indexPage&gt;SiteHome&lt;/indexPage&gt;${line.separator}&lt;masterLabel&gt;\5&lt;/masterLabel&gt;${line.separator}&lt;requireHttps&gt;\6&lt;/requireHttps&gt;${line.separator}&lt;siteType&gt;\7&lt;/siteType&gt;${line.separator}&lt;subdomain&gt;\8&lt;/subdomain&gt;${line.separator}&lt;urlPathPrefix&gt;\5&lt;/urlPathPrefix&gt;${line.separator}&lt;/CustomSite&gt;"
        />

        <!-- fix site index pages - Error: Required field is missing: indexPage -->
        <local name="NumberOfSites.tmp" />
        <condition property="NumberOfSites.tmp" else=""><resourcecount when="ne" count="0"><fileset dir="@{tempDir}/sites" /></resourcecount></condition>
        <resourcecount property="NumberOfSites.tmp"><fileset dir="@{tempDir}/sites" /></resourcecount>
        <script language="javascript">with (new JavaImporter(java.io)) {
            if (project.getProperty('NumberOfSites.tmp')) {
                var page = project.createTask('echo');
                page.setFile(new File('@{tempDir}/pages/SiteHome.page'));
                page.setMessage('&lt;apex:page/&gt;');
                page.perform();
                var meta = project.createTask('echo');
                meta.setFile(new File('@{tempDir}/pages/SiteHome.page-meta.xml'));
                meta.setMessage('&lt;ApexPage&gt;&lt;label&gt;SiteHome&lt;/label&gt;&lt;/ApexPage&gt;');
                meta.perform();
            }
        }</script>

        <!-- fix support setting queue dependencies - Error: cannot delete queue that is in use -->
        <mkdir dir="@{tempDir}/settings" />
        <echoxml file="@{tempDir}/settings/Case.settings" namespacePolicy="all">
            <CaseSettings>
                <defaultCaseOwner>@{username}</defaultCaseOwner>
                <defaultCaseOwnerType>User</defaultCaseOwnerType>
            </CaseSettings>
        </echoxml>

        <!-- fix big objects - Error: Custom BigObjects do not support layouts -->
        <delete><fileset dir="@{tempDir}" includes="**/*__b*" /></delete>

        <!-- MANUAL COMPONENTS -->
        <!-- CustomSite URL Rewriter is not available through Metadata API -->
        <!-- Inbound Email Services are not available through Metadata API -->
        <!-- Lead Settings behaviour is not available through Metadata API -->

        <!-- strips namespaced components -->
        <macrodef name="unspecifyForDestroy">
            <attribute name="namespacePrefix" />
            <sequential>
                <echo>Stripping namespaced components: @{namespacePrefix}</echo>
                <replaceregexp
                    flags="gm"
                    file="@{tempDir}/destructiveChangesPost.xml"
                    match="&lt;members&gt;[^&lt;]*@{namespacePrefix}__[^&lt;]+&lt;/members&gt;"
                    replace="&lt;!--\0--&gt;"
                />
                <delete><fileset dir="@{tempDir}" includes="**/@{namespacePrefix}__*" /></delete>
            </sequential>
        </macrodef>

        <!-- iterates over all namespace prefixes -->
        <echo>Listing installed packages...</echo>
        <local name="InstalledPackage.tmp" />
        <tempfile property="InstalledPackage.tmp" prefix="InstalledPackage" suffix=".tmp" createfile="true" deleteonexit="true" />
        <sf:listMetadata serverurl="${loginUrl}" sessionid="${sessionId}" metadataType="InstalledPackage" resultFilePath="${InstalledPackage.tmp}" />
        <loadfile property="" srcFile="${InstalledPackage.tmp}">
            <filterchain>
                <linecontains><contains value="FullName/Id" /></linecontains>
                <replaceregex pattern="FullName/Id: (.+)/.*" replace="\1" />
                <sortfilter />
                <uniqfilter />
                <scriptfilter language="javascript">
                    var macro = project.createTask('unspecifyForDestroy');
                    macro.setDynamicAttribute('namespaceprefix', self.getToken());
                    macro.execute(); //dynamic attributes are lowercase insistent
                </scriptfilter>
            </filterchain>
        </loadfile>

        <!-- create package definition for fixes -->
        <echoxml file="@{tempDir}/package.xml" namespacePolicy="all">
            <Package>
                <version>43.0</version>
                <types>
                    <name>ApexClass</name>
                    <members>*</members>
                </types>
                <types>
                    <name>ApexPage</name>
                    <members>*</members>
                </types>
                <types>
                    <name>ApexTrigger</name>
                    <members>*</members>
                </types>
                <types>
                    <name>CustomSite</name>
                    <members>*</members>
                </types>
                <types>
                    <name>Layout</name>
                    <members>*</members>
                </types>
                <types>
                    <name>ListView</name>
                    <members>*</members>
                </types>
                <types>
                    <name>Profile</name>
                    <members>*</members>
                </types>
                <types>
                    <name>Role</name>
                    <members>*</members>
                </types>
                <types>
                    <name>Settings</name>
                    <members>*</members>
                </types>
            </Package>
        </echoxml>

        <!-- destroy! -->
        <sf:deploy
            serverurl="${loginUrl}"
            sessionid="${sessionId}"
            deployRoot="@{tempDir}"
            ignoreWarnings="true"
            singlePackage="true"
            purgeOnDelete="true"
        />

    </sequential>

</macrodef>
	<macrodef name="destroy" description="Destroys all metadata in an organization - Revision 23">

	<attribute name="username" />
	<attribute name="password" />
	<attribute name="serverurl" default="https://login.salesforce.com" />
	<attribute name="tempDir" default="temp/destroy" description="Directory to write metadata." />
	<attribute name="apiVersion" default="43.0" />

	<sequential>

	<!-- prompt user to confirm -->
	<input message="THIS TASK IRREVERSIBLY DESTROYS ALL METADATA. ARE YOU SURE?" validargs="@{serverurl}/?un=@{username}" />

	<!-- http api helper -->
	<macrodef name="soapcall">
	<text name="request" />
	<attribute name="endpoint" />
	<attribute name="tempfile" default="" />
	<attribute name="soapaction" default="""" />
	<sequential>
	<local name="request" />
	<property name="request" value="@{request}" />
	<script language="javascript">with (new JavaImporter(java.net, java.io)) {
	var line, result = '', connection = new URL('@{endpoint}').openConnection();
	connection.setDoOutput(true);
	connection.setRequestMethod('POST');
	connection.setRequestProperty('Content-Type', 'text/xml');
	connection.setRequestProperty('SOAPAction', '@{soapaction}');
	var writer = new OutputStreamWriter(connection.getOutputStream());
	writer.write(project.getProperty('request')); writer.flush(); //request
	var reader = new BufferedReader(new InputStreamReader(connection.getInputStream()));
	while ((line = reader.readLine()) != null) result += line + '\n'; reader.close(); //response
	var echo = project.createTask('echo');
	if ('@{tempfile}') echo.setFile(new File('@{tempfile}'));
	echo.setMessage(result);
	echo.perform();
	}</script>
	</sequential>
	</macrodef>

	<!-- http soap login -->
	<local name="loginResponse.tmp" />
	<tempfile property="loginResponse.tmp" prefix="loginResponse" suffix=".tmp" createfile="true" deleteonexit="true" />
	<soapcall tempfile="${loginResponse.tmp}" endpoint="@{serverurl}/services/Soap/u/@{apiVersion}" soapaction="login"><![CDATA[
	<Envelope xmlns="http://schemas.xmlsoap.org/soap/envelope/">
	<Body>
	<login xmlns="urn:partner.soap.sforce.com">
	<username>@{username}</username>
	<password>@{password}</password>
	</login>
	</Body>
	</Envelope>
	]]></soapcall>

	<!-- parse endpoint -->
	<local name="loginUrl" />
	<loadfile property="loginUrl" srcFile="${loginResponse.tmp}">
	<filterchain><tokenfilter><filetokenizer/><replaceregex flags="gs" pattern=".(https://[^/]+)." replace="\1" /></tokenfilter></filterchain>
	</loadfile>

	<!-- parse session -->
	<local name="sessionId" />
	<loadfile property="sessionId" srcFile="${loginResponse.tmp}">
	<filterchain><tokenfilter><filetokenizer/><replaceregex flags="gs" pattern=".<sessionId>([^<]+)</sessionId>." replace="\1" /></tokenfilter></filterchain>
	</loadfile>

	<!-- stop all running jobs and clear roles and permission set dependencies with execanon -->
	<soapcall endpoint="${loginUrl}/services/Soap/T/@{apiVersion}"><![CDATA[
	<Envelope xmlns="http://schemas.xmlsoap.org/soap/envelope/">
	<Header>
	<SessionHeader xmlns="urn:tooling.soap.sforce.com">
	<sessionId>${sessionId}</sessionId>
	</SessionHeader>
	</Header>
	<Body>
	<executeAnonymous xmlns="urn:tooling.soap.sforce.com">
	<String>
	delete [SELECT Id FROM PermissionSetAssignment WHERE PermissionSet.ProfileId = null];
	for (SObject cron : [SELECT Id FROM CronTrigger]) System.abortJob(cron.Id);
	User[] users = [SELECT Id FROM User WHERE UserRoleId != null];
	for (User user : users) user.UserRoleId = null;
	update users;
	</String>
	</executeAnonymous>
	</Body>
	</Envelope>
	]]></soapcall>

	<!-- reset working directory -->
	<delete dir="@{tempDir}" />
	<mkdir dir="@{tempDir}" />

	<!-- determines org shape -->
	<local name="describeMetadataResult.tmp" />
	<tempfile property="describeMetadataResult.tmp" prefix="describeMetadataResult" suffix=".tmp" createfile="true" deleteonexit="true" />
	<sf:describeMetadata serverurl="${loginUrl}" sessionid="${sessionId}" resultFilePath="${describeMetadataResult.tmp}" />

	<!-- clean metadata descriptions -->
	<local name="metadataTypes.tmp" />
	<tempfile property="metadataTypes.tmp" prefix="metadataTypes" suffix=".tmp" createfile="true" deleteonexit="true" />
	<concat destFile="${metadataTypes.tmp}">
	<fileset file="${describeMetadataResult.tmp}" />
	<filterchain>
	<linecontainsregexp><regexp pattern="ChildObjects\|XMLName" /></linecontainsregexp>
	<tokenfilter><replacestring from="," to="${line.separator}"/></tokenfilter>
	<tokenfilter><replacestring from="ChildObjects: " to=""/></tokenfilter>
	<tokenfilter><replacestring from="XMLName: " to=""/></tokenfilter>
	<tokenfilter><replacestring from="*" to=""/></tokenfilter>
	<tokenfilter><ignoreblank/></tokenfilter>
	<sortfilter/>
	</filterchain>
	</concat>

	<!-- lists by type with regex filter -->
	<macrodef name="listMetadataForDestroy">
	<attribute name="negate" />
	<attribute name="pattern" />
	<attribute name="metadataType" />
	<sequential>
	<echo>Preparing destructiveChangesPost.xml - @{metadataType}</echo>
	<local name="listMetadataResult.tmp" />
	<tempfile property="listMetadataResult.tmp" prefix="@{metadataType}" suffix=".tmp" createfile="true" deleteonexit="true" />
	<sf:listMetadata serverurl="${loginUrl}" sessionid="${sessionId}" metadataType="@{metadataType}" resultFilePath="${listMetadataResult.tmp}" />
	<concat destFile="@{tempDir}/destructiveChangesPost.xml" append="true">
	<fileset file="${listMetadataResult.tmp}" />
	<header filtering="false"><![CDATA[${line.separator}<types>${line.separator} <name>@{metadataType}</name>${line.separator}]]></header>
	<filterchain>
	<linecontains><contains value="FullName/Id" /></linecontains>
	<replaceregex pattern="FullName/Id: (.+)/.*" replace="<members>\1</members>" />
	<linecontainsregexp negate="@{negate}"><regexp pattern="@{pattern}" /></linecontainsregexp>
	</filterchain>
	<footer filtering="false"><![CDATA[</types>]]></footer>
	</concat>
	</sequential>
	</macrodef>

	<!-- open destructive changes definition -->
	<echo file="@{tempDir}/destructiveChangesPost.xml"><![CDATA[<Package>]]></echo>

	<!-- iterates over (most) metadata types -->
	<loadfile property="" srcFile="${metadataTypes.tmp}">
	<filterchain>
	<!-- AppMenu - AppSwitcher.appmenu - Error: The AppMenu called 'AppSwitcher' is standard and cannot be deleted -->
	<!-- AssignmentRules - Case.assignmentRules - Error: The AssignmentRules called 'Case' is standard and cannot be deleted -->
	<!-- AutoResponseRules - Lead.autoResponseRules - Error: The AutoResponseRules called 'Lead' is standard and cannot be deleted -->
	<!-- Certificate - SelfSignedCert.crt - Error: We can't delete this certificate because your Identity Provider is using it -->
	<!-- CleanDataService - DataCloudCompanyMatch - Error: You can't delete default data integration rule -->
	<!-- Community - Zone.community - Error: invalid parameter value -->
	<!-- ConnectedApp - Connected Apps may be used in use by other orgs so don't trash them -->
	<!-- CustomSite - BigAss.site - Error: insufficient access rights on cross-reference id -->
	<!-- CustomObjectTranslation - MyMeta__mdt-en_US - Error: The CustomObjectTranslation called 'MyMeta__mdt-en_US' is standard and cannot be deleted -->
	<!-- EscalationRules - Case.escalationRules: - Error: The EscalationRules called 'Case' is standard and cannot be deleted -->
	<!-- Flow - TaskNotify.flowDefinition - Error: insufficient access rights on cross-reference id -->
	<!-- InstalledPackage - Error: cannot modify managed object: state=installed -->
	<!-- MatchingRules - Account.matchingRule: - Error: Matching Rules have to be deleted individually -->
	<!-- RecordType - Metric.Completion - Error: Cannot delete record type through API -->
	<!-- SharingRules - Account.sharingRules - Error: The SharingRules called 'Account' is standard and cannot be deleted -->
	<!-- TopicsForObjects - Error: Entity type 'TopicsForObjects' is not available for delete in this api version -->
	<!-- Workflow - Account.workflow - Error: Cannot delete a workflow object; Workflow Rules and Actions must be deleted individually -->
	<linecontainsregexp negate="true">
	<regexp pattern="AppMenu\|AssignmentRules\|AutoResponseRules\|Certificate\|CleanDataService\|Community\|ConnectedApp\|CustomSite\|CustomObjectTranslation\|EscalationRules\|Flow\|InstalledPackage\|MatchingRules\|RecordType\|SharingRules\|TopicsForObjects\|Workflow" />
	</linecontainsregexp>
	<!-- Layout - Remove only: Account-Account %28Marketing%29 and WorkFeedback-Feedback Layout - Summer %2715 etc -->
	<!-- Profile - Remove only: Custom: Marketing Profile and Custom: Support Profile and Custom: Sales Profile etc -->
	<!-- ListView - Leaves behind: Activity.All, Asset.All, Campaign.All, Contract.All, Product2.All, User.All etc -->
	<!-- ApexPage - Leaves behind: SiteHome Visualforce Page which is required in orgs containing Force.com Sites -->
	<!-- CustomField - Leaves behind: BigObject Customer_Interaction__b.Score_This_Game__c etc -->
	<!-- MatchingRule - Leaves behind: Lead.Standard_Lead_Match_Rule_v1_0 and Account.Standard_Account_Match_Rule_v1_0 etc -->
	<!-- CustomObject - Remove only: Big Objects, Custom Objects, Platform Events, External Objects etc -->
	<!-- BusinessProcess - Leaves behind: Case.master etc -->
	<!-- CustomApplication - Leaves behind: standard__AppLauncher etc -->
	<scriptfilter language="javascript">
	var negate = false, pattern = '.*', metadataType = self.getToken();
	if ('Layout' == metadataType) (negate = false) \| (pattern = '%27\|%28\|%29');
	if ('Profile' == metadataType) (negate = false) \| (pattern = 'Custom%3A');
	if ('ListView' == metadataType) (negate = true) \| (pattern = '\\.All</members>');
	if ('ApexPage' == metadataType) (negate = true) \| (pattern = '>SiteHome<');
	if ('CustomField' == metadataType) (negate = true) \| (pattern = '__b\\.');
	if ('MatchingRule' == metadataType) (negate = true) \| (pattern = 'Standard_');
	if ('CustomObject' == metadataType) (negate = false) \| (pattern = '__b\|__c\|__e\|__x\|__mdt');
	if ('BusinessProcess' == metadataType) (negate = true) \| (pattern = 'master');
	if ('CustomApplication' == metadataType) (negate = true) \| (pattern = 'standard__');
	var macro = project.createTask('listMetadataForDestroy');
	macro.setDynamicAttribute('negate', negate);
	macro.setDynamicAttribute('pattern', pattern);
	macro.setDynamicAttribute('metadatatype', metadataType);
	macro.execute(); //dynamic attributes are lowercase insistent
	</scriptfilter>
	</filterchain>
	</loadfile>

	<!-- close destructive changes definition -->
	<echo append="true" file="@{tempDir}/destructiveChangesPost.xml"><![CDATA[</Package>]]></echo>

	<!-- retrieves by type and regex replaces -->
	<macrodef name="bulkRetrieveForDestroy">
	<attribute name="metadataType" />
	<attribute name="directoryName" />
	<attribute name="pattern" />
	<attribute name="expression" />
	<sequential>
	<echo>Preparing package.xml - @{metadataType}</echo>
	<mkdir dir="@{tempDir}/@{directoryName}" />
	<sf:bulkRetrieve serverurl="${loginUrl}" sessionid="${sessionId}" retrieveTarget="@{tempDir}" metadataType="@{metadataType}" batchSize="10000" />
	<replaceregexp flags="gs">
	<fileset dir="@{tempDir}/@{directoryName}" />
	<regexp pattern="@{pattern}" />
	<substitution expression="@{expression}" />
	</replaceregexp>
	</sequential>
	</macrodef>

	<!-- fix layout custom links - Error: This WebLink is referenced elsewhere in salesforce.com -->
	<bulkRetrieveForDestroy
	metadataType="Layout"
	directoryName="layouts"
	pattern="<layoutItems>\s+<customLink>[^<]+</customLink>\s+</layoutItems>"
	expression="<!--\0-->"
	/>

	<!-- fix layout custom buttons - Error: This WebLink is referenced elsewhere in salesforce.com - Order-Order Layout -->
	<replaceregexp flags="gs">
	<fileset dir="@{tempDir}/layouts" />
	<regexp pattern="<customButtons>[^<]+</customButtons>" />
	<substitution expression="<!--\0-->" />
	</replaceregexp>

	<!-- fix layout custom actions - Error: Cannot delete action EditDescription. The following layout is referencing this. : Task Layout. -->
	<replaceregexp flags="gs">
	<fileset dir="@{tempDir}/layouts" />
	<regexp pattern="<quickActionList>.+</quickActionList>" />
	<substitution expression="<!--\0-->" />
	</replaceregexp>

	<!-- fix profile default apps - Error: Unable to delete custom app. Profiles are using this custom app as default -->
	<bulkRetrieveForDestroy
	metadataType="Profile"
	directoryName="profiles"
	pattern="<userPermissions>.*</userPermissions>"
	expression="<applicationVisibilities><application>standard__AppLauncher</application><default>true</default><visible>true</visible></applicationVisibilities>"
	/>

	<!-- fix apex class dependencies - Parent__c - Error: This custom field is referenced elsewhere in salesforce.com -->
	<bulkRetrieveForDestroy
	metadataType="ApexClass"
	directoryName="classes"
	pattern="(/\.?\/)?.+?\s+class\s+([A-Za-z0-9_]+)\s([A-Za-z0-9<. ,>])?\s\{.*\}"
	expression="public class \2 {public \2(){} public \2(ApexPages.StandardController c){} public \2(ApexPages.StandardSetController c){}}"
	/>

	<!-- fix visualforce page dependencies - Parent__c - Error: This custom field is referenced elsewhere in salesforce.com -->
	<bulkRetrieveForDestroy
	metadataType="ApexPage"
	directoryName="pages"
	pattern=".apex:page."
	expression="<apex:page \1/>"
	/>

	<!-- fix trigger dependencies -->
	<bulkRetrieveForDestroy
	metadataType="ApexTrigger"
	directoryName="triggers"
	pattern="(/\.?\/)?.?\s?trigger\s+([A-Za-z0-9_]+)\s+on\s+([A-Za-z0-9_])?.*"
	expression="trigger \2 on \3 (after insert) {}"
	/>

	<!-- fix role parents - Error: Your attempt to delete the role could not be completed because at least one role reports to that role -->
	<bulkRetrieveForDestroy
	metadataType="Role"
	directoryName="roles"
	pattern="<parentRole>[^<]+</parentRole>"
	expression="<!--\0-->"
	/>

	<!-- fix object listviews - Error: cannot delete last filter -->
	<bulkRetrieveForDestroy
	metadataType="ListView"
	directoryName="objects"
	pattern="<listViews>.*</listViews>"
	expression="<listViews><fullName>All</fullName><filterScope>Everything</filterScope><label>All</label></listViews>"
	/>

	<!-- fix site dependencies - Error: This static resource is referenced elsewhere in salesforce.com. Remove the usage and try again -->
	<bulkRetrieveForDestroy
	metadataType="CustomSite"
	directoryName="sites"
	pattern="<CustomSite xmlns="http://soap.sforce.com/2006/04/metadata">.<active>([^<]+)</active>.<allowStandardPortalPages>([^<]+)</allowStandardPortalPages>.<clickjackProtectionLevel>([^<]+)</clickjackProtectionLevel>.<indexPage>([^<]+)</indexPage>.<masterLabel>([^<]+)</masterLabel>.<requireHttps>([^<]+)</requireHttps>.<siteType>([^<]+)</siteType>.<subdomain>([^<]+)</subdomain>.*</CustomSite>"
	expression="<CustomSite xmlns="http://soap.sforce.com/2006/04/metadata">${line.separator}<active>\1</active>${line.separator}<allowStandardPortalPages>\2</allowStandardPortalPages>${line.separator}<clickjackProtectionLevel>\3</clickjackProtectionLevel>${line.separator}<indexPage>SiteHome</indexPage>${line.separator}<masterLabel>\5</masterLabel>${line.separator}<requireHttps>\6</requireHttps>${line.separator}<siteType>\7</siteType>${line.separator}<subdomain>\8</subdomain>${line.separator}<urlPathPrefix>\5</urlPathPrefix>${line.separator}</CustomSite>"
	/>

	<!-- fix site index pages - Error: Required field is missing: indexPage -->
	<local name="NumberOfSites.tmp" />
	<condition property="NumberOfSites.tmp" else=""><resourcecount when="ne" count="0"><fileset dir="@{tempDir}/sites" /></resourcecount></condition>
	<resourcecount property="NumberOfSites.tmp"><fileset dir="@{tempDir}/sites" /></resourcecount>
	<script language="javascript">with (new JavaImporter(java.io)) {
	if (project.getProperty('NumberOfSites.tmp')) {
	var page = project.createTask('echo');
	page.setFile(new File('@{tempDir}/pages/SiteHome.page'));
	page.setMessage('<apex:page/>');
	page.perform();
	var meta = project.createTask('echo');
	meta.setFile(new File('@{tempDir}/pages/SiteHome.page-meta.xml'));
	meta.setMessage('<ApexPage><label>SiteHome</label></ApexPage>');
	meta.perform();
	}
	}</script>

	<!-- fix support setting queue dependencies - Error: cannot delete queue that is in use -->
	<mkdir dir="@{tempDir}/settings" />
	<echoxml file="@{tempDir}/settings/Case.settings" namespacePolicy="all">
	<CaseSettings>
	<defaultCaseOwner>@{username}</defaultCaseOwner>
	<defaultCaseOwnerType>User</defaultCaseOwnerType>
	</CaseSettings>
	</echoxml>

	<!-- fix big objects - Error: Custom BigObjects do not support layouts -->
	<delete><fileset dir="@{tempDir}" includes="*/__b*" /></delete>

	<!-- MANUAL COMPONENTS -->
	<!-- CustomSite URL Rewriter is not available through Metadata API -->
	<!-- Inbound Email Services are not available through Metadata API -->
	<!-- Lead Settings behaviour is not available through Metadata API -->

	<!-- strips namespaced components -->
	<macrodef name="unspecifyForDestroy">
	<attribute name="namespacePrefix" />
	<sequential>
	<echo>Stripping namespaced components: @{namespacePrefix}</echo>
	<replaceregexp
	flags="gm"
	file="@{tempDir}/destructiveChangesPost.xml"
	match="<members>[^<]*@{namespacePrefix}__[^<]+</members>"
	replace="<!--\0-->"
	/>
	<delete><fileset dir="@{tempDir}" includes="*/@{namespacePrefix}__" /></delete>
	</sequential>
	</macrodef>

	<!-- iterates over all namespace prefixes -->
	<echo>Listing installed packages...</echo>
	<local name="InstalledPackage.tmp" />
	<tempfile property="InstalledPackage.tmp" prefix="InstalledPackage" suffix=".tmp" createfile="true" deleteonexit="true" />
	<sf:listMetadata serverurl="${loginUrl}" sessionid="${sessionId}" metadataType="InstalledPackage" resultFilePath="${InstalledPackage.tmp}" />
	<loadfile property="" srcFile="${InstalledPackage.tmp}">
	<filterchain>
	<linecontains><contains value="FullName/Id" /></linecontains>
	<replaceregex pattern="FullName/Id: (.+)/.*" replace="\1" />
	<sortfilter />
	<uniqfilter />
	<scriptfilter language="javascript">
	var macro = project.createTask('unspecifyForDestroy');
	macro.setDynamicAttribute('namespaceprefix', self.getToken());
	macro.execute(); //dynamic attributes are lowercase insistent
	</scriptfilter>
	</filterchain>
	</loadfile>

	<!-- create package definition for fixes -->
	<echoxml file="@{tempDir}/package.xml" namespacePolicy="all">
	<Package>
	<version>43.0</version>
	<types>
	<name>ApexClass</name>
	<members>*</members>
	</types>
	<types>
	<name>ApexPage</name>
	<members>*</members>
	</types>
	<types>
	<name>ApexTrigger</name>
	<members>*</members>
	</types>
	<types>
	<name>CustomSite</name>
	<members>*</members>
	</types>
	<types>
	<name>Layout</name>
	<members>*</members>
	</types>
	<types>
	<name>ListView</name>
	<members>*</members>
	</types>
	<types>
	<name>Profile</name>
	<members>*</members>
	</types>
	<types>
	<name>Role</name>
	<members>*</members>
	</types>
	<types>
	<name>Settings</name>
	<members>*</members>
	</types>
	</Package>
	</echoxml>

	<!-- destroy! -->
	<sf:deploy
	serverurl="${loginUrl}"
	sessionid="${sessionId}"
	deployRoot="@{tempDir}"
	ignoreWarnings="true"
	singlePackage="true"
	purgeOnDelete="true"
	/>

	</sequential>

	</macrodef>