[libvirt] [PATCH] virsh-domain: Remove unnecessary check and tune code in cmdDesc()

[Hongwei Bi]

Since there is a check on buf through virBufferError(),
it is not necessary to check desc again.
---
 tools/virsh-domain.c |   62 +++++++++++++++++++++----------------------------
 1 files changed, 27 insertions(+), 35 deletions(-)

diff --git a/tools/virsh-domain.c b/tools/virsh-domain.c
index e47877b..a8a0105 100644
--- a/tools/virsh-domain.c
+++ b/tools/virsh-domain.c
@@ -6724,45 +6724,37 @@ cmdDesc(vshControl *ctl, const vshCmd *cmd ATTRIBUTE_UNUSED)
     }
     desc = virBufferContentAndReset(&buf);
 
-    if (edit || desc) {
-        if (!desc) {
-                desc = vshGetDomainDescription(ctl, dom, title,
-                                           config?VIR_DOMAIN_XML_INACTIVE:0);
-                if (!desc)
-                    goto cleanup;
-        }
-
-        if (edit) {
-            /* Create and open the temporary file. */
-            if (!(tmp = vshEditWriteToTempFile(ctl, desc)))
-                goto cleanup;
+    if (edit) {
+        /* Create and open the temporary file. */
+        if (!(tmp = vshEditWriteToTempFile(ctl, desc)))
+            goto cleanup;
 
-            /* Start the editor. */
-            if (vshEditFile(ctl, tmp) == -1)
-                goto cleanup;
+        /* Start the editor. */
+        if (vshEditFile(ctl, tmp) == -1)
+            goto cleanup;
 
-            /* Read back the edited file. */
-            if (!(desc_edited = vshEditReadBackFile(ctl, tmp)))
-                goto cleanup;
+        /* Read back the edited file. */
+        if (!(desc_edited = vshEditReadBackFile(ctl, tmp)))
+            goto cleanup;
 
-            /* strip a possible newline at the end of file; some
-             * editors enforce a newline, this makes editing the title
-             * more convenient */
-            if (title &&
-                (tmpstr = strrchr(desc_edited, '\n')) &&
-                *(tmpstr+1) == '\0')
-                *tmpstr = '\0';
-
-            /* Compare original XML with edited.  Has it changed at all? */
-            if (STREQ(desc, desc_edited)) {
-                vshPrint(ctl, _("Domain description not changed.\n"));
-                ret = true;
-                goto cleanup;
-            }
+        /* strip a possible newline at the end of file; some
+         * editors enforce a newline, this makes editing the title
+         * more convenient */
+        if (title &&
+           (tmpstr = strrchr(desc_edited, '\n')) &&
+            *(tmpstr+1) == '\0')
+            *tmpstr = '\0';
+
+        /* Compare original XML with edited.  Has it changed at all? */
+        if (STREQ(desc, desc_edited)) {
+            vshPrint(ctl, _("Domain description not changed.\n"));
+            ret = true;
+            goto cleanup;
+        }
 
-            VIR_FREE(desc);
-            desc = desc_edited;
-            desc_edited = NULL;
+        VIR_FREE(desc);
+        desc = desc_edited;
+        desc_edited = NULL;
         }
 
         if (virDomainSetMetadata(dom, type, desc, NULL, NULL, flags) < 0) {
-- 
1.7.1