vppctl: bash completion for vppctl commands

Added bash completion that will include all commands from build time
*Script takes list of commands generated by doxygen-siphon-list
*Configured doxygen-siphon makefile to generate just cli commands
*List of cli commands put in /usr/share/vpp
*Stopped siphon using doxygen bootstrap, uses main bootstrap instead
*Added rpm/deb check for installation of packages, separate from bootstrap
*NOTE: Once you have installed the vpp .deb/.rpm package you will have to
 restart bash

Change-Id: Ie503e80d5177481f6e7dbe59378f2e0d76f29152
Signed-off-by: Padraig Connolly <padraig.connolly@intel.com>
diff --git a/src/scripts/vppctl_completion b/src/scripts/vppctl_completion
new file mode 100755
index 0000000..7e60249
--- /dev/null
+++ b/src/scripts/vppctl_completion
@@ -0,0 +1,30 @@
+#Copyright 2016 Intel Corporation
+#
+#Licensed under the Apache License, Version 2.0 (the "License");
+#you may not use this file except in compliance with the License.
+#You may obtain a copy of the License at
+#
+#    http://www.apache.org/licenses/LICENSE-2.0
+#
+#Unless required by applicable law or agreed to in writing, software
+#distributed under the License is distributed on an "AS IS" BASIS,
+#WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+#See the License for the specific language governing permissions and
+#limitations under the License.
+
+_vppctl()
+{
+    local cur prev num opts
+    COMPREPLY=( $(compgen -f ${cur}) )
+    cur="${COMP_WORDS[COMP_CWORD]}"
+    prev="${COMP_WORDS[@]:1}"
+    num="$((${#COMP_WORDS[@]}-1))"
+
+    VPP_CMD_LIST="$(cat /usr/share/vpp/clicmd.itemlist)"
+
+    opts="$(awk -v prev="^$prev" -v num=$num '{if($0 ~ prev) print $num}' <<< "${VPP_CMD_LIST}")"
+
+    COMPREPLY=( $(compgen -W "${opts}" -- ${cur}) )
+
+}
+complete -F _vppctl vppctl