[libvirt] [v4 5/5] virsh: Add vshRebootShutdownModeCompleter

[Tomas Meszaros]

vshRebootShutdownModeCompleter returns available shutdown mode
names. This can be used for --mode auto completion for commands
such as reboot or shutdown.

for example:

 virsh # reboot --mode <TAB>
  acpi     agent    initctl  signal
 virsh # reboot --mode i<TAB>
 virsh # reboot --mode initctl

---
v3
* removed useless if
* used virStringFreeList() instead of iteration
* moved all .completer = vshRebootShutdownModeCompleter initializations
  into this patch

v4
* rewritten using virStringSplit()

 tools/virsh-domain.c | 6 ++++--
 tools/virsh.c        | 6 ++++++
 tools/virsh.h        | 1 +
 3 files changed, 11 insertions(+), 2 deletions(-)

diff --git a/tools/virsh-domain.c b/tools/virsh-domain.c
index 1406d2e..69014dd 100644
--- a/tools/virsh-domain.c
+++ b/tools/virsh-domain.c
@@ -4801,7 +4801,8 @@ static const vshCmdOptDef opts_shutdown[] = {
     },
     {.name = "mode",
      .type = VSH_OT_STRING,
-     .help = N_("shutdown mode: acpi|agent|initctl|signal")
+     .help = N_("shutdown mode: acpi|agent|initctl|signal"),
+     .completer = vshRebootShutdownModeCompleter
     },
     {.name = NULL}
 };
@@ -4889,7 +4890,8 @@ static const vshCmdOptDef opts_reboot[] = {
     },
     {.name = "mode",
      .type = VSH_OT_STRING,
-     .help = N_("shutdown mode: acpi|agent|initctl|signal")
+     .help = N_("shutdown mode: acpi|agent|initctl|signal"),
+     .completer = vshRebootShutdownModeCompleter
     },
     {.name = NULL}
 };
diff --git a/tools/virsh.c b/tools/virsh.c
index cb89187..7e7a0d5 100644
--- a/tools/virsh.c
+++ b/tools/virsh.c
@@ -2636,6 +2636,12 @@ vshSuspendTargetCompleter(unsigned int unused_flags ATTRIBUTE_UNUSED)
     return virStringSplit("mem disk hybrid", " ", 0);
 }
 
+char **
+vshRebootShutdownModeCompleter(unsigned int unused_flags ATTRIBUTE_UNUSED)
+{
+    return virStringSplit("acpi agent initctl signal", " ", 0);
+}
+
 #ifdef USE_READLINE
 
 /* -----------------
diff --git a/tools/virsh.h b/tools/virsh.h
index c8e3d38..4763db3 100644
--- a/tools/virsh.h
+++ b/tools/virsh.h
@@ -260,6 +260,7 @@ struct _vshCmdGrp {
 
 char **vshDomainCompleter(unsigned int flags);
 char **vshSuspendTargetCompleter(unsigned int unused_flags);
+char **vshRebootShutdownModeCompleter(unsigned int unused_flags);
 
 void vshError(vshControl *ctl, const char *format, ...)
     ATTRIBUTE_FMT_PRINTF(2, 3);
-- 
1.8.3.1