cli: Enable output in XML

This patch enables gluster cli to output data in xml format. XML output can be
obtained by passing "--xml" as an argument.

A new "volume list" command, which lists the volumes present in a cluster, has
been added. This can be used for obtaining a quick list of volumes.

Several commands, including "volume top", "volume profile", "volume status" and
"volume info", "volume list", have custom XML output routines. Other commands
use either one of the 2 generic output routines, cli_xml_output_str() &
cli_xml_output_dict().
NOTE: When using "all" for "volume status" and "volume info" the XML output will
have multiple roots.

Change-Id: I6117baa02ec06fda116177dbd401f66521263ac6
BUG: 790713
Signed-off-by: Kaushal M <kaushal@redhat.com>
Reviewed-on: http://review.gluster.com/2753
Tested-by: Gluster Build System <jenkins@build.gluster.com>
Reviewed-by: Amar Tumballi <amarts@redhat.com>
Reviewed-by: Vijay Bellur <vijay@gluster.com>

1 files changed, 31 insertions, 0 deletions

diff --git a/cli/src/cli-cmd-volume.c b/cli/src/cli-cmd-volume.c
index 521e3eb8..9c7a43b9 100644
--- a/cli/src/cli-cmd-volume.c
+++ b/cli/src/cli-cmd-volume.c
@@ -1653,6 +1653,33 @@ out:
         return ret;
 }
 
+int
+cli_cmd_volume_list_cbk (struct cli_state *state, struct cli_cmd_word *word,
+                         const char **words, int wordcount)
+{
+        int                     ret = -1;
+        call_frame_t            *frame = NULL;
+        rpc_clnt_procedure_t    *proc = NULL;
+        int                     sent = 0;
+
+        frame = create_frame (THIS, THIS->ctx->pool);
+        if (!frame)
+                goto out;
+
+        proc = &cli_rpc_prog->proctable[GLUSTER_CLI_LIST_VOLUME];
+        if (proc->fn) {
+                ret = proc->fn (frame, THIS, NULL);
+        }
+
+out:
+        if (ret) {
+                cli_cmd_sent_status_get (&sent);
+                if (sent == 0)
+                        cli_out ("Volume list failed");
+        }
+
+        return ret;
+}
 
 struct cli_cmd volume_cmds[] = {
         { "volume info [all|<VOLNAME>]",
@@ -1754,6 +1781,10 @@ struct cli_cmd volume_cmds[] = {
          cli_cmd_volume_statedump_cbk,
          "perform statedump on bricks"},
 
+        {"volume list",
+         cli_cmd_volume_list_cbk,
+         "list all volumes in cluster"},
+
         { NULL, NULL, NULL }
 };