[PATCH 2/5] virDomainSnapshotDiskDefFormat: Use virXMLFormatElement

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Refactor the code to use modern XML formatting approach.

Signed-off-by: Peter Krempa <pkrempa@xxxxxxxxxx>
---
 src/conf/snapshot_conf.c | 29 +++++++++++++----------------
 1 file changed, 13 insertions(+), 16 deletions(-)

diff --git a/src/conf/snapshot_conf.c b/src/conf/snapshot_conf.c
index f896fd1cf2..757af681cd 100644
--- a/src/conf/snapshot_conf.c
+++ b/src/conf/snapshot_conf.c
@@ -772,33 +772,30 @@ virDomainSnapshotDiskDefFormat(virBufferPtr buf,
                                virDomainSnapshotDiskDefPtr disk,
                                virDomainXMLOptionPtr xmlopt)
 {
-    int type = disk->src->type;
+    g_auto(virBuffer) attrBuf = VIR_BUFFER_INITIALIZER;
+    g_auto(virBuffer) childBuf = VIR_BUFFER_INIT_CHILD(buf);

     if (!disk->name)
         return 0;

-    virBufferEscapeString(buf, "<disk name='%s'", disk->name);
+    virBufferEscapeString(&attrBuf, " name='%s'", disk->name);
     if (disk->snapshot > 0)
-        virBufferAsprintf(buf, " snapshot='%s'",
+        virBufferAsprintf(&attrBuf, " snapshot='%s'",
                           virDomainSnapshotLocationTypeToString(disk->snapshot));

-    if (!disk->src->path && disk->src->format == 0) {
-        virBufferAddLit(buf, "/>\n");
-        return 0;
-    }
+    if (disk->src->path || disk->src->format != 0) {
+        virBufferAsprintf(&attrBuf, " type='%s'", virStorageTypeToString(disk->src->type));

-    virBufferAsprintf(buf, " type='%s'>\n", virStorageTypeToString(type));
-    virBufferAdjustIndent(buf, 2);
+        if (disk->src->format > 0)
+            virBufferEscapeString(&childBuf, "<driver type='%s'/>\n",
+                                  virStorageFileFormatTypeToString(disk->src->format));

-    if (disk->src->format > 0)
-        virBufferEscapeString(buf, "<driver type='%s'/>\n",
-                              virStorageFileFormatTypeToString(disk->src->format));
-    if (virDomainDiskSourceFormat(buf, disk->src, "source", 0, false, 0,
-                                  false, false, xmlopt) < 0)
+        if (virDomainDiskSourceFormat(&childBuf, disk->src, "source", 0, false, 0,
+                                      false, false, xmlopt) < 0)
         return -1;
+    }

-    virBufferAdjustIndent(buf, -2);
-    virBufferAddLit(buf, "</disk>\n");
+    virXMLFormatElement(buf, "disk", &attrBuf, &childBuf);
     return 0;
 }

-- 
2.29.2




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