[libvirt] [PATCH 2/2] virsh: Implement new table API for virsh list

[Simon Kobyda]

Instead of printing it straight in virsh, it creates table struct
which is filled with header and rows(domains). It allows us to know
more about table before printing to calculate alignment right.

Signed-off-by: Simon Kobyda <skobyda at redhat.com>
---
 tools/virsh-domain-monitor.c | 39 ++++++++++++++++++------------------
 1 file changed, 20 insertions(+), 19 deletions(-)

diff --git a/tools/virsh-domain-monitor.c b/tools/virsh-domain-monitor.c
index b9b4f9739b..f6842877f5 100644
--- a/tools/virsh-domain-monitor.c
+++ b/tools/virsh-domain-monitor.c
@@ -39,6 +39,7 @@
 #include "virmacaddr.h"
 #include "virxml.h"
 #include "virstring.h"
+#include "vsh-table.h"
 
 VIR_ENUM_DECL(virshDomainIOError)
 VIR_ENUM_IMPL(virshDomainIOError,
@@ -1901,6 +1902,7 @@ cmdList(vshControl *ctl, const vshCmd *cmd)
     char id_buf[INT_BUFSIZE_BOUND(unsigned int)];
     unsigned int id;
     unsigned int flags = VIR_CONNECT_LIST_DOMAINS_ACTIVE;
+    vshTablePtr table = NULL;
 
     /* construct filter flags */
     if (vshCommandOptBool(cmd, "inactive") ||
@@ -1940,15 +1942,12 @@ cmdList(vshControl *ctl, const vshCmd *cmd)
     /* print table header in legacy mode */
     if (optTable) {
         if (optTitle)
-            vshPrintExtra(ctl, " %-5s %-30s %-10s %-20s\n%s\n",
-                          _("Id"), _("Name"), _("State"), _("Title"),
-                          "-----------------------------------------"
-                          "-----------------------------------------");
+            table = vshTableNew("Id", "Name", "State", "Title", NULL);
         else
-            vshPrintExtra(ctl, " %-5s %-30s %s\n%s\n",
-                          _("Id"), _("Name"), _("State"),
-                          "-----------------------------------------"
-                          "-----------");
+            table = vshTableNew("Id", "Name", "State", NULL);
+
+        if (!table)
+            goto cleanup;
     }
 
     for (i = 0; i < list->ndomains; i++) {
@@ -1973,20 +1972,18 @@ cmdList(vshControl *ctl, const vshCmd *cmd)
             if (optTitle) {
                 if (!(title = virshGetDomainDescription(ctl, dom, true, 0)))
                     goto cleanup;
-
-                vshPrint(ctl, " %-5s %-30s %-10s %-20s\n", id_buf,
-                         virDomainGetName(dom),
-                         state == -2 ? _("saved")
-                         : virshDomainStateToString(state),
-                         title);
-
+                vshTableRowAppend(table, id_buf, virDomainGetName(dom),
+                                  state == -2 ? _("saved")
+                                  : virshDomainStateToString(state),
+                                  title, NULL);
                 VIR_FREE(title);
             } else {
-                vshPrint(ctl, " %-5s %-30s %s\n", id_buf,
-                         virDomainGetName(dom),
-                         state == -2 ? _("saved")
-                         : virshDomainStateToString(state));
+                vshTableRowAppend(table, id_buf, virDomainGetName(dom),
+                                  state == -2 ? _("saved")
+                                  : virshDomainStateToString(state),
+                                  NULL);
             }
+
         } else if (optUUID && optName) {
             if (virDomainGetUUIDString(dom, uuid) < 0) {
                 vshError(ctl, "%s", _("Failed to get domain's UUID"));
@@ -2004,8 +2001,12 @@ cmdList(vshControl *ctl, const vshCmd *cmd)
         }
     }
 
+    if (optTable)
+        vshTablePrintToStdout(ctl, table);
+
     ret = true;
  cleanup:
+    vshTableFree(table);
     virshDomainListFree(list);
     return ret;
 }
-- 
2.17.1