Add support for modular updateinfo.xml data

Module advisory data can specify which advisory is applicable for which
modular stream. Module information can be absent or there could be
multiple entries.

If there is a module entry in advisory and none of modules in advisory
is enabled on the system, advisory is not relevant for the system and
should be ignored.

Author: j-mracek

ext/repo_updateinfoxml.c

@@ -37,6 +37,7 @@
  *     <pkglist>
  *       <collection short="F8">
  *         <name>Fedora 8</name>
+ *         <module name="pki-deps" stream="10.6" version="20181019123559" context="9edba152" arch="x86_64"/>
  *         <package arch="ppc64" name="imlib-debuginfo" release="6.fc8" src="http://download.fedoraproject.org/pub/fedora/linux/updates/8/ppc64/imlib-debuginfo-1.9.15-6.fc8.ppc64.rpm" version="1.9.15">
  *           <filename>imlib-debuginfo-1.9.15-6.fc8.ppc64.rpm</filename>
  *           <reboot_suggested>True</reboot_suggested>
@@ -70,6 +71,7 @@ enum state {
   STATE_RELOGIN,
   STATE_RIGHTS,
   STATE_SEVERITY,
+  STATE_MODULE,
   NUMSTATES
 };
 
@@ -92,6 +94,7 @@ static struct solv_xmlparser_element stateswitches[] = {
   { STATE_PKGLIST,     "collection",      STATE_COLLECTION,  0 },
   { STATE_COLLECTION,  "name",            STATE_NAME,        1 },
   { STATE_COLLECTION,  "package",         STATE_PACKAGE,     0 },
+  { STATE_COLLECTION,  "module",          STATE_MODULE,      0 },
   { STATE_PACKAGE,     "filename",        STATE_FILENAME,    1 },
   { STATE_PACKAGE,     "reboot_suggested",STATE_REBOOT,      1 },
   { STATE_PACKAGE,     "restart_suggested",STATE_RESTART,    1 },
@@ -321,6 +324,40 @@ startElement(struct solv_xmlparser *xmlp, int state, const char *name, const cha
 	  repodata_set_id(pd->data, pd->collhandle, UPDATE_COLLECTION_ARCH, a);
         break;
       }
+    case STATE_MODULE:
+      {
+        const char *name = 0, *stream = 0, *version = 0, *context = 0, *arch = 0;
+        Id name_id, stream_id, version_id, context_id, arch_id = 0;
+        for (; *atts; atts += 2)
+          {
+            if (!strcmp(*atts, "arch"))
+              arch = atts[1];
+            else if (!strcmp(*atts, "name"))
+              name = atts[1];
+            else if (!strcmp(*atts, "stream"))
+              stream = atts[1];
+            else if (!strcmp(*atts, "version"))
+              version = atts[1];
+            else if (!strcmp(*atts, "context"))
+              context = atts[1];
+          }
+        name_id = pool_str2id(pool, name, 1);
+        if (arch)
+          arch_id = pool_str2id(pool, arch, 1);
+        stream_id = pool_str2id(pool, stream, 1);
+        version_id = pool_str2id(pool, version, 1);
+        context_id = pool_str2id(pool, context, 1);
+
+        Id module_handle = repodata_new_handle(pd->data);
+        repodata_set_id(pd->data, module_handle, UPDATE_MODULE_NAME, name_id);
+        repodata_set_id(pd->data, module_handle, UPDATE_MODULE_STREAM, stream_id);
+        repodata_set_id(pd->data, module_handle, UPDATE_MODULE_VERSION, version_id);
+        repodata_set_id(pd->data, module_handle, UPDATE_MODULE_CONTEXT, context_id);
+        if (arch_id)
+          repodata_set_id(pd->data, module_handle, UPDATE_MODULE_ARCH, arch_id);
+        repodata_add_flexarray(pd->data, pd->handle, UPDATE_MODULE, module_handle);
+        break;
+      }
 
     default:
       break;

src/knownid.h

@@ -250,6 +250,14 @@ KNOWNID(SIGNATURE_TIME,	        	"signature:time"),
 KNOWNID(SIGNATURE_EXPIRES,	        "signature:expires"),
 KNOWNID(SIGNATURE_DATA,		        "signature:data"),
 
+/* 'content' of patch, usually list of modules */
+KNOWNID(UPDATE_MODULE,                  "update:module"),              /*  "name stream version context arch" */
+KNOWNID(UPDATE_MODULE_NAME,             "update:module:name"),         /*   name */
+KNOWNID(UPDATE_MODULE_STREAM,           "update:module:stream"),       /*   stream */
+KNOWNID(UPDATE_MODULE_VERSION,          "update:module:version"),      /*   version */
+KNOWNID(UPDATE_MODULE_CONTEXT,          "update:module:context"),      /*   context */
+KNOWNID(UPDATE_MODULE_ARCH,             "update:module:arch"),         /*   architecture */
+
 KNOWNID(ID_NUM_INTERNAL,		0)
 
 #ifdef KNOWNID_INITIALIZE