From 4bddb6d1c043e5b3a9ebdf1ed0114c655be9a589 Mon Sep 17 00:00:00 2001
From: Tomas Mlcoch <tmlcoch@redhat.com>
Date: Wed, 16 Jul 2014 16:56:21 +0200
Subject: [PATCH] xml_file: Support for prestodelta.xml format

---
 src/xml_file.c | 22 ++++++++++++++++++++--
 src/xml_file.h | 21 +++++++++++++++++++++
 2 files changed, 41 insertions(+), 2 deletions(-)

diff --git a/src/xml_file.c b/src/xml_file.c
index 4230a5b..6732da9 100644
--- a/src/xml_file.c
+++ b/src/xml_file.c
@@ -35,10 +35,12 @@
                                 CR_XML_FILELISTS_NS"\" packages=\"%d\">\n"
 #define XML_OTHER_HEADER        XML_HEADER"<otherdata xmlns=\"" \
                                 CR_XML_OTHER_NS"\" packages=\"%d\">\n"
+#define XML_PRESTODELTA_HEADER  XML_HEADER"<prestodelta>\n"
 
 #define XML_PRIMARY_FOOTER      "</metadata>"
 #define XML_FILELISTS_FOOTER    "</filelists>"
 #define XML_OTHER_FOOTER        "</otherdata>"
+#define XML_PRESTODELTA_FOOTER  "</prestodelta>"
 
 cr_XmlFile *
 cr_xmlfile_sopen(const char *filename,
@@ -85,10 +87,20 @@ int
 cr_xmlfile_set_num_of_pkgs(cr_XmlFile *f, long num, GError **err)
 {
     assert(f);
-    assert(f->header == 0);
-    assert(num >= 0);
     assert(!err || *err == NULL);
 
+    if (f->header != 0) {
+        g_set_error(err, CR_XML_FILE_ERROR, CRE_BADARG,
+                    "Header was already written");
+        return CRE_BADARG;
+    }
+
+    if (num < 0) {
+        g_set_error(err, CR_XML_FILE_ERROR, CRE_BADARG,
+                    "The number must be a positive integer number");
+        return CRE_BADARG;
+    }
+
     f->pkgs = num;
     return CRE_OK;
 }
@@ -113,6 +125,9 @@ cr_xmlfile_write_xml_header(cr_XmlFile *f, GError **err)
     case CR_XMLFILE_OTHER:
         xml_header = XML_OTHER_HEADER;
         break;
+    case CR_XMLFILE_PRESTODELTA:
+        xml_header = XML_PRESTODELTA_HEADER;
+        break;
     default:
         g_critical("%s: Bad file type", __func__);
         assert(0);
@@ -151,6 +166,9 @@ cr_xmlfile_write_xml_footer(cr_XmlFile *f, GError **err)
     case CR_XMLFILE_OTHER:
         xml_footer = XML_OTHER_FOOTER;
         break;
+    case CR_XMLFILE_PRESTODELTA:
+        xml_footer = XML_PRESTODELTA_FOOTER;
+        break;
     default:
         g_critical("%s: Bad file type", __func__);
         assert(0);
diff --git a/src/xml_file.h b/src/xml_file.h
index 6e5a6de..588d34d 100644
--- a/src/xml_file.h
+++ b/src/xml_file.h
@@ -39,6 +39,7 @@ typedef enum {
     CR_XMLFILE_PRIMARY,     /*!< primary.xml */
     CR_XMLFILE_FILELISTS,   /*!< filelists.xml */
     CR_XMLFILE_OTHER,       /*!< other.xml */
+    CR_XMLFILE_PRESTODELTA, /*!< prestodelta.xml */
     CR_XMLFILE_SENTINEL,    /*!< sentinel of the list */
 } cr_XmlFileType;
 
@@ -114,6 +115,26 @@ typedef struct {
 #define cr_xmlfile_sopen_other(FILENAME, COMTYPE, STAT, ERR) \
             cr_xmlfile_sopen(FILENAME, CR_XMLFILE_OTHER, COMTYPE, STAT, ERR)
 
+/** Open a new prestodelta XML file.
+ * @param FILENAME      Filename.
+ * @param COMTYPE       Type of used compression.
+ * @param ERR           GError **
+ * @return              Opened cr_XmlFile or NULL on error
+ */
+#define cr_xmlfile_open_prestodelta(FILENAME, COMTYPE, ERR) \
+            cr_xmlfile_open(FILENAME, CR_XMLFILE_PRESTODELTA, COMTYPE, ERR)
+
+/** Open a new prestodelta XML file.
+ * @param FILENAME      Filename.
+ * @param COMTYPE       Type of compression.
+ * @param STAT          cr_ContentStat object or NULL.
+ * @param ERR           GError **
+ * @return              Opened cr_XmlFile or NULL on error
+ */
+#define cr_xmlfile_sopen_prestodelta(FILENAME, COMTYPE, STAT, ERR) \
+            cr_xmlfile_sopen(FILENAME, CR_XMLFILE_PRESTODELTA, COMTYPE, STAT, ERR)
+
+
 /** Open a new XML file with stats.
  * Note: Opened file must not exists! This function cannot
  * open existing file!.
-- 
2.7.4