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[libvirt] [PATCH 03/13] add VSH_OFLAG_REQ_OPT options



A VSH_OFLAG_REQ_OPT option means --optionname is required when used.
It will kill any ambiguity even !VSH_OFLAG_REQ option listed before
VSH_OFLAG_REQ option if the !VSH_OFLAG_REQ option is a VSH_OFLAG_REQ_OPT option.

It will help us use optional arguement with VSH_OT_ARGV argument.

Signed-off-by: Lai Jiangshan <laijs fujitsu com>
---
 tools/virsh.c |    7 +++++++
 1 files changed, 7 insertions(+), 0 deletions(-)

diff --git a/tools/virsh.c b/tools/virsh.c
index 2e27535..80cffac 100644
--- a/tools/virsh.c
+++ b/tools/virsh.c
@@ -152,6 +152,7 @@ enum {
     VSH_OFLAG_NONE     = 0,        /* without flags */
     VSH_OFLAG_REQ      = (1 << 0), /* option required */
     VSH_OFLAG_EMPTY_OK = (1 << 1), /* empty string option allowed */
+    VSH_OFLAG_REQ_OPT  = (1 << 2), /* --optionname required */
 };
 
 /* dummy */
@@ -11080,6 +11081,12 @@ vshCmddefOptParse(const vshCmdDef *cmd, uint32_t* opts_need_arg,
                 return -1; /* bool options can't be mandatory */
             continue;
         }
+        if (opt->flag & VSH_OFLAG_REQ_OPT) {
+            if (opt->flag & VSH_OFLAG_REQ)
+                *opts_required |= 1 << i;
+            continue;
+        }
+
         *opts_need_arg |= 1 << i;
         if (opt->flag & VSH_OFLAG_REQ) {
             if (optional)
-- 
1.7.4.4


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