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Re: [libvirt] [PATCHv2] virsh: tweak help output for VSH_OT_DATA

 On 06/29/2010 07:09 PM, Eric Blake wrote:
https://bugzilla.redhat.com/show_bug.cgi?id=609044 complained
that 'virsh help pool-create-as' didn't document the shortcut
that you can do 'virsh pool-create-as $name $type --target $target'
rather than having to supply the four optional source- arguments
in order to fill out the necessary positional arguments.

This one-liner changes the help output to hopefully make this more obvious:

     pool-create-as - create a pool from a set of args

     pool-create-as<name>  [--print-xml]<type>  [<source-host>] [<source-path>] [<source-dev>] [<source-name>] [<target>] [--source-format<string>]

     Create a pool.

     [--name]<string>   name of the pool
     --print-xml      print XML document, but don't define/create
     [--type]<string>   type of the pool
     [--source-host]<string>   source-host for underlying storage
     [--source-path]<string>   source path for underlying storage
     [--source-dev]<string>   source device for underlying storage
     [--source-name]<string>   source name for underlying storage
     [--target]<string>   target for underlying storage
     --source-format<string>   format for underlying storage

* tools/virsh.c (vshCmddefHelp): Make it more obvious that data
arguments may, but not must, be specified by option leaders.

Changed in v2: translate the help string, now that it contains an
English word and not just a %s.

  tools/virsh.c |    3 ++-
  1 files changed, 2 insertions(+), 1 deletions(-)

diff --git a/tools/virsh.c b/tools/virsh.c
index f1bb295..788f274 100644
--- a/tools/virsh.c
+++ b/tools/virsh.c
@@ -9558,7 +9558,8 @@ vshCmddefHelp(vshControl *ctl, const char *cmdname)
                  else if (opt->type == VSH_OT_STRING)
                      snprintf(buf, sizeof(buf), _("--%s<string>"), opt->name);
                  else if (opt->type == VSH_OT_DATA)
-                    snprintf(buf, sizeof(buf), "<%s>", opt->name);
+                    snprintf(buf, sizeof(buf), _("[--%s]<string>"),
+                             opt->name);

                  fprintf(stdout, "    %-15s  %s\n", buf, _(opt->help));


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