i think the ipxe building stuff is done

schema/lib/elements/ipxe.xsd

@@ -5,6 +5,13 @@
 
   <xs:include schemaLocation="../types/unix.xsd"/>
   <xs:include schemaLocation="../types/ipxe.xsd"/>
+  <xs:include schemaLocation="../types/git.xsd"/>
+
+  <xs:complexType name="e_ipxe_extratargets">
+    <xs:sequence minOccurs="1" maxOccurs="unbounded">
+      <xs:element name="target" type="t_ipxe_extratarget" minOccurs="1" maxOccurs="unbounded"/>
+    </xs:sequence>
+  </xs:complexType>
 
   <xs:complexType name="e_ipxe_opts">
     <xs:choice minOccurs="1" maxOccurs="2">
@@ -33,11 +40,23 @@
     <xs:attribute name="subDir" type="t_unix_reldirpath" use="optional"/>
   </xs:complexType>
 
-  <xs:complexType name="e_ipxe_patch">
+  <xs:complexType name="e_ipxe_scripts">
     <xs:sequence minOccurs="1" maxOccurs="unbounded">
-      <xs:element name="patchFile" minOccurs="1" maxOccurs="unbounded" type="t_unix_relfilepath"/>
+      <xs:element name="script" minOccurs="1" maxOccurs="unbounded" type="t_ipxe_script"/>
+    </xs:sequence>
+    <xs:attribute name="srcDir" type="t_unix_anydir" use="optional"/>
+  </xs:complexType>
+
+  <xs:complexType name="e_ipxe_upstream">
+    <xs:sequence>
+      <xs:choice minOccurs="1" maxOccurs="2">
+        <xs:element name="dest" minOccurs="1" maxOccurs="1" type="t_unix_dirpath"/>
+        <xs:choice minOccurs="1" maxOccurs="1">
+          <xs:element name="git" minOccurs="0" type="t_git_remote"/>
+          <xs:element name="tarball" minOccurs="0" type="t_ipxe_tarball"/>
+        </xs:choice>
+      </xs:choice>
     </xs:sequence>
-    <xs:attribute name="patchDir" type="t_unix_anydir" use="optional"/>
   </xs:complexType>
 
 </xs:schema>

schema/lib/types/git.xsd

@@ -0,0 +1,53 @@
+<?xml version="1.0" encoding="UTF-8" ?>
+<xs:schema xmlns:xs="http://www.w3.org/2001/XMLSchema"
+           elementFormDefault="qualified"
+           attributeFormDefault="unqualified">
+
+  <xs:simpleType name="t_git_commit">
+    <xs:restriction base="xs:token">
+      <xs:pattern value="[A-Fa-f0-9]{4,40}"/>
+      <xs:whiteSpace value="collapse"/>
+    </xs:restriction>
+  </xs:simpleType>
+
+  <xs:simpleType name="t_git_ref">
+    <xs:union memberTypes="xs:token t_git_commit"/>
+  </xs:simpleType>
+
+  <xs:simpleType name="t_git_reftypes">
+    <xs:restriction base="xs:token">
+      <xs:enumeration value="branch"/><!-- a.k.a. "head" -->
+      <xs:enumeration value="head"/><!-- a.k.a. "branch" -->
+      <xs:enumeration value="tag"/>
+      <xs:enumeration value="commit"/><!-- a.k.a. "rev" -->
+      <xs:enumeration value="rev"/><!-- a.k.a. "commit" -->
+    </xs:restriction>
+  </xs:simpleType>
+
+  <!--
+  <xs:complexType name="t_git_remote">
+    <xs:simpleContent>
+      <xs:extension base="t_git_uri">
+        <xs:attribute name="refType" use="optional" default="branch" type="t_git_reftypes"/>
+        <xs:attribute name="ref" use="optional" default="master" type="t_git_reftypes"/>
+      </xs:extension>
+    </xs:simpleContent>
+  </xs:complexType>
+  -->
+  <xs:complexType name="t_git_remote">
+    <xs:sequence minOccurs="1" maxOccurs="1">
+      <xs:choice minOccurs="1" maxOccurs="3">
+        <xs:element name="refType" minOccurs="0" maxOccurs="1" type="t_git_reftypes" default="branch"/>
+        <xs:element name="ref" minOccurs="0" maxOccurs="1" type="t_git_ref" default="master"/>
+        <xs:element name="uri" minOccurs="1" maxOccurs="1" type="t_git_uri"/>
+      </xs:choice>
+    </xs:sequence>
+  </xs:complexType>
+
+  <xs:simpleType name="t_git_uri">
+    <xs:restriction base="xs:anyURI">
+      <xs:pattern value="(https?|git|file)://.*"/>
+    </xs:restriction>
+  </xs:simpleType>
+
+</xs:schema>

schema/lib/types/ipxe.xsd

@@ -5,6 +5,22 @@
 
   <xs:include schemaLocation="../types/unix.xsd"/>
 
+  <xs:complexType name="t_ipxe_extratarget">
+    <xs:simpleContent>
+      <xs:extension base="t_unix_reldirpath">
+        <xs:attribute name="subDir" use="optional" default="." type="t_unix_reldirpath"/>
+        <xs:attribute name="baseName" use="optional" type="t_unix_portablePosixFilename"/>
+      </xs:extension>
+    </xs:simpleContent>
+  </xs:complexType>
+
+  <xs:complexType name="t_ipxe_patch">
+    <xs:sequence minOccurs="1" maxOccurs="unbounded">
+      <xs:element name="patchFile" minOccurs="1" maxOccurs="unbounded" type="t_unix_relfilepath"/>
+    </xs:sequence>
+    <xs:attribute name="patchDir" type="t_unix_anydir" use="optional"/>
+  </xs:complexType>
+
   <xs:simpleType name="t_ipxe_patchopt">
     <xs:restriction base="xs:token">
       <xs:pattern value="[A-Z0-9_]+"/>
@@ -12,4 +28,54 @@
     </xs:restriction>
   </xs:simpleType>
 
+  <xs:simpleType name="t_ipxe_rom_firmware">
+    <xs:restriction base="xs:token">
+      <!-- iPXE Makefile, target "ALL" -->
+      <xs:enumeration value="rtl8139"/>
+      <xs:enumeration value="8086100e"/>
+      <xs:enumeration value="80861209"/>
+      <xs:enumeration value="10500940"/>
+      <xs:enumeration value="10222000"/>
+      <xs:enumeration value="10ec8139"/>
+      <xs:enumeration value="1af41000"/>
+      <xs:enumeration value="8086100f"/>
+      <xs:enumeration value="808610d3"/>
+      <xs:enumeration value="15ad07b0"/>
+    </xs:restriction>
+  </xs:simpleType>
+
+  <xs:complexType name="t_ipxe_rom_type">
+    <xs:sequence minOccurs="1" maxOccurs="2">
+      <xs:element name="romType" minOccurs="1"/>
+    </xs:sequence>
+  </xs:complexType>
+
+  <xs:simpleType name="t_ipxe_rom_type_types">
+    <xs:restriction base="xs:token">
+      <!-- iPXE Makefile, target "ALL" -->
+      <xs:enumeration value="rom"/>
+      <xs:enumeration value="mrom"/>
+    </xs:restriction>
+  </xs:simpleType>
+
+  <xs:complexType name="t_ipxe_roms">
+    <xs:sequence minOccurs="1">
+      <xs:element name="rom" type="t_ipxe_rom_firmware" minOccurs="1" maxOccurs="unbounded"/>
+    </xs:sequence>
+  </xs:complexType>
+
+  <xs:complexType name="t_ipxe_script">
+    <xs:simpleContent>
+      <xs:extension base="t_unix_portablePosixFilename">
+        <xs:attribute name="prefix" type="xs:token" use="required"/>
+      </xs:extension>
+    </xs:simpleContent>
+  </xs:complexType>
+
+  <xs:simpleType name="t_ipxe_tarball">
+    <xs:restriction base="xs:anyURI">
+      <xs:pattern value="https?://.*\.(tar\.((x|g)?z|bz2)?|zip)"/>
+    </xs:restriction>
+  </xs:simpleType>
+
 </xs:schema>

schema/projects/ipxe/build.xsd

@@ -16,20 +16,39 @@
         <xs:element name="source">
           <xs:complexType>
             <xs:sequence minOccurs="0">
+              <xs:choice minOccurs="1" maxOccurs="unbounded">
                 <xs:element name="patchSet" minOccurs="0" maxOccurs="unbounded">
                   <xs:complexType>
                     <xs:sequence minOccurs="1" maxOccurs="2">
                       <xs:element name="switchOpts" maxOccurs="1" type="e_ipxe_optswitch"/>
-                    <xs:element name="patch" maxOccurs="1" type="e_ipxe_patch"/>
+                      <xs:element name="patch" maxOccurs="1" type="t_ipxe_patch"/>
                     </xs:sequence>
                   </xs:complexType>
                 </xs:element>
+                <xs:element name="upstream" minOccurs="1" maxOccurs="1" type="e_ipxe_upstream"/>
+              </xs:choice>
             </xs:sequence>
             <xs:attribute name="srcDir" type="t_unix_dirpath" use="required"/>
-            <xs:attribute name="upstream" type="xs:anyURI" use="required"/>
           </xs:complexType>
         </xs:element>
-        <xs:element name="build"/>
+        <xs:element name="build">
+          <xs:complexType>
+            <xs:sequence minOccurs="1" maxOccurs="3">
+              <xs:choice minOccurs="1" maxOccurs="3">
+                <xs:element name="dest" minOccurs="1" maxOccurs="1" type="t_unix_dirpath"/>
+                <xs:element name="scripts" minOccurs="1" maxOccurs="1" type="e_ipxe_scripts"/>
+                <xs:element name="roms" minOccurs="1" maxOccurs="1" type="t_ipxe_roms"/>
+                <xs:element name="extraTargets" minOccurs="0" maxOccurs="1" type="e_ipxe_extratargets"/>
+              </xs:choice>
+            </xs:sequence>
+            <xs:attribute name="iso" type="xs:boolean" use="optional" default="false"/>
+            <xs:attribute name="usb" type="xs:boolean" use="optional" default="false"/>
+            <xs:attribute name="floppy" type="xs:boolean" use="optional" default="false"/>
+            <xs:attribute name="mbr" type="xs:boolean" use="optional" default="false"/>
+            <xs:attribute name="pxe" type="xs:boolean" use="optional" default="false"/>
+            <xs:attribute name="undi" type="xs:boolean" use="optional" default="false"/>
+          </xs:complexType>
+        </xs:element>
       </xs:all>
     </xs:complexType>
   </xs:element>